d2ir: Add single glob matching to edges and make it work fully recursively

d2ast/d2ast.go

@@ -740,6 +740,13 @@ func (kp *KeyPath) IDA() (ida []string) {
 	return ida
 }
 
+func (kp *KeyPath) Copy() *KeyPath {
+	kp2 := *kp
+	kp2.Path = nil
+	kp2.Path = append(kp2.Path, kp.Path...)
+	return &kp2
+}
+
 type Edge struct {
 	Range Range `json:"range"`
 

d2ir/compile.go

@@ -396,27 +396,15 @@ func (c *compiler) compileKey(refctx *RefContext) {
 }
 
 func (c *compiler) compileField(dst *Map, kp *d2ast.KeyPath, refctx *RefContext) {
-	us, ok := kp.Path[0].Unbox().(*d2ast.UnquotedString)
+	fa, err := dst.EnsureField(kp, refctx)
-	if ok && us.Pattern != nil {
-		for _, f := range dst.Fields {
-			if matchPattern(f.Name, us.Pattern) {
-				if len(kp.Path) == 1 {
-					c._compileField(f, refctx)
-				} else {
-					// TODO: recurse
-				}
-			}
-		}
-		return
-	}
-
-	f, err := dst.EnsureField(kp, refctx)
 	if err != nil {
 		c.err.Errors = append(c.err.Errors, err.(d2ast.Error))
 		return
 	}
 
-	c._compileField(f, refctx)
+	for _, f := range fa {
+		c._compileField(f, refctx)
+	}
 }
 
 func (c *compiler) _compileField(f *Field, refctx *RefContext) {
@@ -424,7 +412,7 @@ func (c *compiler) _compileField(f *Field, refctx *RefContext) {
 		// For vars, if we delete the field, it may just resolve to an outer scope var of the same name
 		// Instead we keep it around, so that resolveSubstitutions can find it
 		if !IsVar(ParentMap(f)) {
-			dst.DeleteField(f.Name)
+			ParentMap(f).DeleteField(f.Name)
 			return
 		}
 	}
@@ -621,12 +609,17 @@ func (c *compiler) compileLink(refctx *RefContext) {
 }
 
 func (c *compiler) compileEdges(refctx *RefContext) {
-	if refctx.Key.Key != nil {
+	if refctx.Key.Key == nil {
-		f, err := refctx.ScopeMap.EnsureField(refctx.Key.Key, refctx)
+		c._compileEdges(refctx)
-		if err != nil {
+		return
-			c.err.Errors = append(c.err.Errors, err.(d2ast.Error))
+	}
-			return
+
-		}
+	fa, err := refctx.ScopeMap.EnsureField(refctx.Key.Key, refctx)
+	if err != nil {
+		c.err.Errors = append(c.err.Errors, err.(d2ast.Error))
+		return
+	}
+	for _, f := range fa {
 		if _, ok := f.Composite.(*Array); ok {
 			c.errorf(refctx.Key.Key, "cannot index into array")
 			return
@@ -636,9 +629,13 @@ func (c *compiler) compileEdges(refctx *RefContext) {
 				parent: f,
 			}
 		}
-		refctx.ScopeMap = f.Map()
+		refctx2 := *refctx
+		refctx2.ScopeMap = f.Map()
+		c._compileEdges(&refctx2)
 	}
+}
 
+func (c *compiler) _compileEdges(refctx *RefContext) {
 	eida := NewEdgeIDs(refctx.Key)
 	for i, eid := range eida {
 		if refctx.Key != nil && refctx.Key.Value.Null != nil {
@@ -649,19 +646,20 @@ func (c *compiler) compileEdges(refctx *RefContext) {
 		refctx = refctx.Copy()
 		refctx.Edge = refctx.Key.Edges[i]
 
-		var e *Edge
+		var ea []*Edge
 		if eid.Index != nil {
-			ea := refctx.ScopeMap.GetEdges(eid)
+			ea = refctx.ScopeMap.GetEdges(eid)
 			if len(ea) == 0 {
 				c.errorf(refctx.Edge, "indexed edge does not exist")
 				continue
 			}
-			e = ea[0]
+			for _, e := range ea {
-			e.References = append(e.References, &EdgeReference{
+				e.References = append(e.References, &EdgeReference{
-				Context: refctx,
+					Context: refctx,
-			})
+				})
-			refctx.ScopeMap.appendFieldReferences(0, refctx.Edge.Src, refctx)
+				refctx.ScopeMap.appendFieldReferences(0, refctx.Edge.Src, refctx)
-			refctx.ScopeMap.appendFieldReferences(0, refctx.Edge.Dst, refctx)
+				refctx.ScopeMap.appendFieldReferences(0, refctx.Edge.Dst, refctx)
+			}
 		} else {
 			_, err := refctx.ScopeMap.EnsureField(refctx.Edge.Src, refctx)
 			if err != nil {
@@ -674,41 +672,43 @@ func (c *compiler) compileEdges(refctx *RefContext) {
 				continue
 			}
 
-			e, err = refctx.ScopeMap.CreateEdge(eid, refctx)
+			ea, err = refctx.ScopeMap.CreateEdge(eid, refctx)
 			if err != nil {
 				c.err.Errors = append(c.err.Errors, err.(d2ast.Error))
 				continue
 			}
 		}
 
-		if refctx.Key.EdgeKey != nil {
+		for _, e := range ea {
-			if e.Map_ == nil {
+			if refctx.Key.EdgeKey != nil {
-				e.Map_ = &Map{
-					parent: e,
-				}
-			}
-			c.compileField(e.Map_, refctx.Key.EdgeKey, refctx)
-		} else {
-			if refctx.Key.Primary.Unbox() != nil {
-				e.Primary_ = &Scalar{
-					parent: e,
-					Value:  refctx.Key.Primary.Unbox(),
-				}
-			}
-			if refctx.Key.Value.Array != nil {
-				c.errorf(refctx.Key.Value.Unbox(), "edges cannot be assigned arrays")
-				continue
-			} else if refctx.Key.Value.Map != nil {
 				if e.Map_ == nil {
 					e.Map_ = &Map{
 						parent: e,
 					}
+					c.compileField(e.Map_, refctx.Key.EdgeKey, refctx)
 				}
-				c.compileMap(e.Map_, refctx.Key.Value.Map, refctx.ScopeAST)
+			} else {
-			} else if refctx.Key.Value.ScalarBox().Unbox() != nil {
+				if refctx.Key.Primary.Unbox() != nil {
-				e.Primary_ = &Scalar{
+					e.Primary_ = &Scalar{
-					parent: e,
+						parent: e,
-					Value:  refctx.Key.Value.ScalarBox().Unbox(),
+						Value:  refctx.Key.Primary.Unbox(),
+					}
+				}
+				if refctx.Key.Value.Array != nil {
+					c.errorf(refctx.Key.Value.Unbox(), "edges cannot be assigned arrays")
+					continue
+				} else if refctx.Key.Value.Map != nil {
+					if e.Map_ == nil {
+						e.Map_ = &Map{
+							parent: e,
+						}
+					}
+					c.compileMap(e.Map_, refctx.Key.Value.Map, refctx.ScopeAST)
+				} else if refctx.Key.Value.ScalarBox().Unbox() != nil {
+					e.Primary_ = &Scalar{
+						parent: e,
+						Value:  refctx.Key.Value.ScalarBox().Unbox(),
+					}
 				}
 			}
 		}

d2ir/d2ir.go

@@ -651,7 +651,7 @@ func (m *Map) getField(ida []string) *Field {
 	return nil
 }
 
-func (m *Map) EnsureField(kp *d2ast.KeyPath, refctx *RefContext) (*Field, error) {
+func (m *Map) EnsureField(kp *d2ast.KeyPath, refctx *RefContext) ([]*Field, error) {
 	i := 0
 	for kp.Path[i].Unbox().ScalarString() == "_" {
 		m = ParentMap(m)
@@ -663,29 +663,46 @@ func (m *Map) EnsureField(kp *d2ast.KeyPath, refctx *RefContext) (*Field, error)
 		}
 		i++
 	}
-	return m.ensureField(i, kp, refctx)
+
+	var fa []*Field
+	err := m.ensureField(i, kp, refctx, &fa)
+	return fa, err
 }
 
-func (m *Map) ensureField(i int, kp *d2ast.KeyPath, refctx *RefContext) (*Field, error) {
+func (m *Map) ensureField(i int, kp *d2ast.KeyPath, refctx *RefContext, fa *[]*Field) error {
+	us, ok := kp.Path[i].Unbox().(*d2ast.UnquotedString)
+	if ok && us.Pattern != nil {
+		for _, f := range m.Fields {
+			if matchPattern(f.Name, us.Pattern) {
+				if i == len(kp.Path)-1 {
+					*fa = append(*fa, f)
+				} else if f.Map() != nil {
+					f.Map().ensureField(i+1, kp, refctx, fa)
+				}
+			}
+		}
+		return nil
+	}
+
 	head := kp.Path[i].Unbox().ScalarString()
 
 	if _, ok := d2graph.ReservedKeywords[strings.ToLower(head)]; ok {
 		head = strings.ToLower(head)
 		if _, ok := d2graph.CompositeReservedKeywords[head]; !ok && i < len(kp.Path)-1 {
-			return nil, d2parser.Errorf(kp.Path[i].Unbox(), fmt.Sprintf(`"%s" must be the last part of the key`, head))
+			return d2parser.Errorf(kp.Path[i].Unbox(), fmt.Sprintf(`"%s" must be the last part of the key`, head))
 		}
 	}
 
 	if head == "_" {
-		return nil, d2parser.Errorf(kp.Path[i].Unbox(), `parent "_" can only be used in the beginning of paths, e.g. "_.x"`)
+		return d2parser.Errorf(kp.Path[i].Unbox(), `parent "_" can only be used in the beginning of paths, e.g. "_.x"`)
 	}
 
 	if head == "classes" && NodeBoardKind(m) == "" {
-		return nil, d2parser.Errorf(kp.Path[i].Unbox(), "%s is only allowed at a board root", head)
+		return d2parser.Errorf(kp.Path[i].Unbox(), "%s is only allowed at a board root", head)
 	}
 
 	if findBoardKeyword(head) != -1 && NodeBoardKind(m) == "" {
-		return nil, d2parser.Errorf(kp.Path[i].Unbox(), "%s is only allowed at a board root", head)
+		return d2parser.Errorf(kp.Path[i].Unbox(), "%s is only allowed at a board root", head)
 	}
 
 	for _, f := range m.Fields {
@@ -703,17 +720,18 @@ func (m *Map) ensureField(i int, kp *d2ast.KeyPath, refctx *RefContext) (*Field,
 		}
 
 		if i+1 == len(kp.Path) {
-			return f, nil
+			*fa = append(*fa, f)
+			return nil
 		}
 		if _, ok := f.Composite.(*Array); ok {
-			return nil, d2parser.Errorf(kp.Path[i].Unbox(), "cannot index into array")
+			return d2parser.Errorf(kp.Path[i].Unbox(), "cannot index into array")
 		}
 		if f.Map() == nil {
 			f.Composite = &Map{
 				parent: f,
 			}
 		}
-		return f.Map().ensureField(i+1, kp, refctx)
+		return f.Map().ensureField(i+1, kp, refctx, fa)
 	}
 
 	f := &Field{
@@ -730,12 +748,13 @@ func (m *Map) ensureField(i int, kp *d2ast.KeyPath, refctx *RefContext) (*Field,
 	}
 	m.Fields = append(m.Fields, f)
 	if i+1 == len(kp.Path) {
-		return f, nil
+		*fa = append(*fa, f)
+		return nil
 	}
 	f.Composite = &Map{
 		parent: f,
 	}
-	return f.Map().ensureField(i+1, kp, refctx)
+	return f.Map().ensureField(i+1, kp, refctx, fa)
 }
 
 func (m *Map) DeleteEdge(eid *EdgeID) *Edge {
@@ -825,57 +844,128 @@ func (m *Map) GetEdges(eid *EdgeID) []*Edge {
 	return ea
 }
 
-func (m *Map) CreateEdge(eid *EdgeID, refctx *RefContext) (*Edge, error) {
+func (m *Map) CreateEdge(eid *EdgeID, refctx *RefContext) ([]*Edge, error) {
+	var ea []*Edge
+	return ea, m.createEdge(eid, refctx, &ea)
+}
+
+func (m *Map) createEdge(eid *EdgeID, refctx *RefContext, ea *[]*Edge) error {
 	if ParentEdge(m) != nil {
-		return nil, d2parser.Errorf(refctx.Edge, "cannot create edge inside edge")
+		return d2parser.Errorf(refctx.Edge, "cannot create edge inside edge")
 	}
 
 	eid, m, common, err := eid.resolve(m)
 	if err != nil {
-		return nil, d2parser.Errorf(refctx.Edge, err.Error())
+		return d2parser.Errorf(refctx.Edge, err.Error())
 	}
 	if len(common) > 0 {
-		f, err := m.EnsureField(d2ast.MakeKeyPath(common), nil)
+		commonEnd := len(refctx.Edge.Src.Path) - len(eid.SrcPath)
+		commonStart := commonEnd - len(common)
+		commonKP := refctx.Edge.Src.Copy()
+		commonKP.Path = commonKP.Path[commonStart:commonEnd]
+		fa, err := m.EnsureField(commonKP, nil)
 		if err != nil {
-			return nil, err
+			return err
 		}
-		if _, ok := f.Composite.(*Array); ok {
+		for _, f := range fa {
-			return nil, d2parser.Errorf(refctx.Edge.Src, "cannot index into array")
+			if _, ok := f.Composite.(*Array); ok {
-		}
+				return d2parser.Errorf(refctx.Edge.Src, "cannot index into array")
-		if f.Map() == nil {
+			}
-			f.Composite = &Map{
+			if f.Map() == nil {
-				parent: f,
+				f.Composite = &Map{
+					parent: f,
+				}
+			}
+			err = f.Map().createEdge(eid, refctx, ea)
+			if err != nil {
+				return err
 			}
 		}
-		return f.Map().CreateEdge(eid, refctx)
+		return nil
 	}
 
 	ij := findProhibitedEdgeKeyword(eid.SrcPath...)
 	if ij != -1 {
-		return nil, d2parser.Errorf(refctx.Edge.Src.Path[ij].Unbox(), "reserved keywords are prohibited in edges")
+		return d2parser.Errorf(refctx.Edge.Src.Path[ij].Unbox(), "reserved keywords are prohibited in edges")
 	}
 	ij = findBoardKeyword(eid.SrcPath...)
 	if ij == len(eid.SrcPath)-1 {
-		return nil, d2parser.Errorf(refctx.Edge.Src.Path[ij].Unbox(), "edge with board keyword alone doesn't make sense")
+		return d2parser.Errorf(refctx.Edge.Src.Path[ij].Unbox(), "edge with board keyword alone doesn't make sense")
 	}
-	src := m.GetField(eid.SrcPath...)
+
-	if NodeBoardKind(src) != "" {
+	srcStart := len(refctx.Edge.Src.Path) - len(eid.SrcPath)
-		return nil, d2parser.Errorf(refctx.Edge.Src, "cannot create edges between boards")
+	if srcStart < 0 {
+		srcStart = 0
 	}
+	srcKP := refctx.Edge.Src.Copy()
+	srcKP.Path = srcKP.Path[srcStart:]
 
 	ij = findProhibitedEdgeKeyword(eid.DstPath...)
 	if ij != -1 {
-		return nil, d2parser.Errorf(refctx.Edge.Dst.Path[ij].Unbox(), "reserved keywords are prohibited in edges")
+		return d2parser.Errorf(refctx.Edge.Dst.Path[ij].Unbox(), "reserved keywords are prohibited in edges")
 	}
 	ij = findBoardKeyword(eid.DstPath...)
 	if ij == len(eid.DstPath)-1 {
-		return nil, d2parser.Errorf(refctx.Edge.Dst.Path[ij].Unbox(), "edge with board keyword alone doesn't make sense")
+		return d2parser.Errorf(refctx.Edge.Dst.Path[ij].Unbox(), "edge with board keyword alone doesn't make sense")
+	}
+
+	dstStart := len(refctx.Edge.Dst.Path) - len(eid.DstPath)
+	if dstStart < 0 {
+		dstStart = 0
+	}
+	dstKP := refctx.Edge.Dst.Copy()
+	dstKP.Path = dstKP.Path[dstStart:]
+
+	underscoresCountSrc := 0
+	underscoresCountDst := 0
+	for _, el := range refctx.Edge.Src.Path {
+		if el.ScalarString() == "_" {
+			underscoresCountSrc++
+		}
+	}
+	for _, el := range refctx.Edge.Dst.Path {
+		if el.ScalarString() == "_" {
+			underscoresCountDst++
+		}
+	}
+	for i := 0; i < underscoresCountDst; i++ {
+		srcKP.Path = append([]*d2ast.StringBox{d2ast.RawStringBox(eid.SrcPath[i], true)}, srcKP.Path...)
+	}
+	for i := 0; i < underscoresCountSrc; i++ {
+		dstKP.Path = append([]*d2ast.StringBox{d2ast.RawStringBox(eid.DstPath[i], true)}, dstKP.Path...)
+	}
+
+	srcFA, err := m.EnsureField(srcKP, refctx)
+	if err != nil {
+		return err
+	}
+	dstFA, err := m.EnsureField(dstKP, refctx)
+	if err != nil {
+		return err
+	}
+
+	for _, src := range srcFA {
+		for _, dst := range dstFA {
+			eid2 := eid.Copy()
+			eid2.SrcPath = RelIDA(m, src)
+			eid2.DstPath = RelIDA(m, dst)
+			e, err := m.createEdge2(eid2, refctx, src, dst)
+			if err != nil {
+				return err
+			}
+			*ea = append(*ea, e)
+		}
+	}
+	return nil
+}
+
+func (m *Map) createEdge2(eid *EdgeID, refctx *RefContext, src, dst *Field) (*Edge, error) {
+	if NodeBoardKind(src) != "" {
+		return nil, d2parser.Errorf(refctx.Edge.Src, "cannot create edges between boards")
 	}
-	dst := m.GetField(eid.DstPath...)
 	if NodeBoardKind(dst) != "" {
 		return nil, d2parser.Errorf(refctx.Edge.Dst, "cannot create edges between boards")
 	}
-
 	if ParentBoard(src) != ParentBoard(dst) {
 		return nil, d2parser.Errorf(refctx.Edge, "cannot create edges between boards")
 	}
@@ -1159,6 +1249,26 @@ func IDA(n Node) (ida []string) {
 	}
 }
 
+// RelIDA returns the absolute path to n relative to p.
+func RelIDA(p, n Node) (ida []string) {
+	for {
+		f, ok := n.(*Field)
+		if ok {
+			ida = append(ida, f.Name)
+			if f.Root() {
+				reverseIDA(ida)
+				return ida
+			}
+		}
+		f = ParentField(n)
+		if f == nil || f.Root() || f == p || f.Composite == p {
+			reverseIDA(ida)
+			return ida
+		}
+		n = f
+	}
+}
+
 func reverseIDA(ida []string) {
 	for i := 0; i < len(ida)/2; i++ {
 		tmp := ida[i]

d2ir/pattern_test.go

@@ -10,6 +10,19 @@ func testCompilePatterns(t *testing.T) {
 	t.Parallel()
 
 	tca := []testCase{
+		{
+			name: "escaped",
+			run: func(t testing.TB) {
+				m, err := compile(t, `animal: meow
+action: yes
+a\*: globbed`)
+				assert.Success(t, err)
+				assertQuery(t, m, 3, 0, nil, "")
+				assertQuery(t, m, 0, 0, "meow", "animal")
+				assertQuery(t, m, 0, 0, "yes", "action")
+				assertQuery(t, m, 0, 0, "globbed", `a\*`)
+			},
+		},
 		{
 			name: "prefix",
 			run: func(t testing.TB) {
@@ -71,16 +84,67 @@ t*ink*r*t*inke*: globbed`)
 			},
 		},
 		{
-			name: "escaped",
+			name: "nested/prefix-suffix/3",
 			run: func(t testing.TB) {
-				m, err := compile(t, `animal: meow
+				m, err := compile(t, `animate.constant.tinkertinker: meow
-action: yes
+astronaut.constant.thinkerthinker: yes
-a\*: globbed`)
+a*n*t*.constant.t*ink*r*t*inke*: globbed`)
 				assert.Success(t, err)
-				assertQuery(t, m, 3, 0, nil, "")
+				assertQuery(t, m, 6, 0, nil, "")
-				assertQuery(t, m, 0, 0, "meow", "animal")
+				assertQuery(t, m, 0, 0, "globbed", "animate.constant.tinkertinker")
-				assertQuery(t, m, 0, 0, "yes", "action")
+				assertQuery(t, m, 0, 0, "globbed", "astronaut.constant.thinkerthinker")
-				assertQuery(t, m, 0, 0, "globbed", `a\*`)
+			},
+		},
+		{
+			name: "edge/1",
+			run: func(t testing.TB) {
+				m, err := compile(t, `animate
+animal
+an* -> an*`)
+				assert.Success(t, err)
+				assertQuery(t, m, 2, 4, nil, "")
+				assertQuery(t, m, 0, 0, nil, "(animate -> animal)[0]")
+				assertQuery(t, m, 0, 0, nil, "(animal -> animal)[0]")
+			},
+		},
+		{
+			name: "edge/2",
+			run: func(t testing.TB) {
+				m, err := compile(t, `shared.animate
+shared.animal
+sh*.(an* -> an*)`)
+				assert.Success(t, err)
+				assertQuery(t, m, 3, 4, nil, "")
+				assertQuery(t, m, 2, 4, nil, "shared")
+				assertQuery(t, m, 0, 0, nil, "shared.(animate -> animal)[0]")
+				assertQuery(t, m, 0, 0, nil, "shared.(animal -> animal)[0]")
+			},
+		},
+		{
+			name: "edge/3",
+			run: func(t testing.TB) {
+				m, err := compile(t, `shared.animate
+shared.animal
+sh*.an* -> sh*.an*`)
+				assert.Success(t, err)
+				assertQuery(t, m, 3, 4, nil, "")
+				assertQuery(t, m, 2, 4, nil, "shared")
+				assertQuery(t, m, 0, 0, nil, "shared.(animate -> animal)[0]")
+				assertQuery(t, m, 0, 0, nil, "shared.(animal -> animal)[0]")
+			},
+		},
+		{
+			name: "double-glob",
+			run: func(t testing.TB) {
+				m, err := compile(t, `shared.animate
+shared.animal
+**.style.fill: red`)
+				assert.Success(t, err)
+				assertQuery(t, m, 9, 0, nil, "")
+				assertQuery(t, m, 8, 0, nil, "shared")
+				assertQuery(t, m, 2, 0, nil, "shared.style")
+				assertQuery(t, m, 2, 0, nil, "shared.animate")
+				assertQuery(t, m, 2, 0, nil, "shared.animal")
 			},
 		},
 	}

d2parser/parse.go

@@ -1030,9 +1030,15 @@ func (p *parser) parseUnquotedString(inKey bool) (s *d2ast.UnquotedString) {
 
 	var sb strings.Builder
 	var rawb strings.Builder
+	lastPatternIndex := 0
 	defer func() {
 		sv := strings.TrimRightFunc(sb.String(), unicode.IsSpace)
 		rawv := strings.TrimRightFunc(rawb.String(), unicode.IsSpace)
+		if s.Pattern != nil {
+			if lastPatternIndex < len(sv) {
+				s.Pattern = append(s.Pattern, sv[lastPatternIndex:])
+			}
+		}
 		if sv == "" {
 			if len(s.Value) > 0 {
 				return
@@ -1046,15 +1052,6 @@ func (p *parser) parseUnquotedString(inKey bool) (s *d2ast.UnquotedString) {
 		s.Value = append(s.Value, d2ast.InterpolationBox{String: &sv, StringRaw: &rawv})
 	}()
 
-	lastPatternIndex := 0
-	defer func() {
-		if s.Pattern != nil {
-			if lastPatternIndex < sb.Len() {
-				s.Pattern = append(s.Pattern, sb.String()[lastPatternIndex:])
-			}
-		}
-	}()
-
 	_s, eof := p.peekn(4)
 	p.rewind()
 	if !eof {

testdata/d2ir/TestCompile/edges/nested.exp.json

@@ -171,6 +171,171 @@
                     "value": {}
                   }
                 }
+              },
+              {
+                "string": {
+                  "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                  "value": [
+                    {
+                      "string": "y",
+                      "raw_string": "y"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                        "value": [
+                          {
+                            "string": "x",
+                            "raw_string": "x"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                        "value": [
+                          {
+                            "string": "y",
+                            "raw_string": "y"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": {
+                    "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                    "src": {
+                      "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                            "value": [
+                              {
+                                "string": "x",
+                                "raw_string": "x"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                            "value": [
+                              {
+                                "string": "y",
+                                "raw_string": "y"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "src_arrow": "",
+                    "dst": {
+                      "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                            "value": [
+                              {
+                                "string": "z",
+                                "raw_string": "z"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                            "value": [
+                              {
+                                "string": "p",
+                                "raw_string": "p"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "dst_arrow": ">"
+                  },
+                  "key": {
+                    "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                    "edges": [
+                      {
+                        "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                        "src": {
+                          "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                          "path": [
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                                "value": [
+                                  {
+                                    "string": "x",
+                                    "raw_string": "x"
+                                  }
+                                ]
+                              }
+                            },
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                                "value": [
+                                  {
+                                    "string": "y",
+                                    "raw_string": "y"
+                                  }
+                                ]
+                              }
+                            }
+                          ]
+                        },
+                        "src_arrow": "",
+                        "dst": {
+                          "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                          "path": [
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                                "value": [
+                                  {
+                                    "string": "z",
+                                    "raw_string": "z"
+                                  }
+                                ]
+                              }
+                            },
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                                "value": [
+                                  {
+                                    "string": "p",
+                                    "raw_string": "p"
+                                  }
+                                ]
+                              }
+                            }
+                          ]
+                        },
+                        "dst_arrow": ">"
+                      }
+                    ],
+                    "primary": {},
+                    "value": {}
+                  }
+                }
               }
             ]
           }
@@ -342,6 +507,171 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+            "value": [
+              {
+                "string": "x",
+                "raw_string": "x"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                  "value": [
+                    {
+                      "string": "x",
+                      "raw_string": "x"
+                    }
+                  ]
+                }
+              },
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                  "value": [
+                    {
+                      "string": "y",
+                      "raw_string": "y"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+              "src": {
+                "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                      "value": [
+                        {
+                          "string": "y",
+                          "raw_string": "y"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                      "value": [
+                        {
+                          "string": "z",
+                          "raw_string": "z"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                      "value": [
+                        {
+                          "string": "p",
+                          "raw_string": "p"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+              "edges": [
+                {
+                  "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                  "src": {
+                    "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                          "value": [
+                            {
+                              "string": "y",
+                              "raw_string": "y"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                          "value": [
+                            {
+                              "string": "z",
+                              "raw_string": "z"
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                          "value": [
+                            {
+                              "string": "p",
+                              "raw_string": "p"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     },
@@ -516,6 +846,171 @@
                     "value": {}
                   }
                 }
+              },
+              {
+                "string": {
+                  "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                  "value": [
+                    {
+                      "string": "p",
+                      "raw_string": "p"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                        "value": [
+                          {
+                            "string": "z",
+                            "raw_string": "z"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                        "value": [
+                          {
+                            "string": "p",
+                            "raw_string": "p"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": {
+                    "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                    "src": {
+                      "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                            "value": [
+                              {
+                                "string": "x",
+                                "raw_string": "x"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                            "value": [
+                              {
+                                "string": "y",
+                                "raw_string": "y"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "src_arrow": "",
+                    "dst": {
+                      "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                            "value": [
+                              {
+                                "string": "z",
+                                "raw_string": "z"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                            "value": [
+                              {
+                                "string": "p",
+                                "raw_string": "p"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "dst_arrow": ">"
+                  },
+                  "key": {
+                    "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                    "edges": [
+                      {
+                        "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                        "src": {
+                          "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                          "path": [
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                                "value": [
+                                  {
+                                    "string": "x",
+                                    "raw_string": "x"
+                                  }
+                                ]
+                              }
+                            },
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                                "value": [
+                                  {
+                                    "string": "y",
+                                    "raw_string": "y"
+                                  }
+                                ]
+                              }
+                            }
+                          ]
+                        },
+                        "src_arrow": "",
+                        "dst": {
+                          "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                          "path": [
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                                "value": [
+                                  {
+                                    "string": "z",
+                                    "raw_string": "z"
+                                  }
+                                ]
+                              }
+                            },
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                                "value": [
+                                  {
+                                    "string": "p",
+                                    "raw_string": "p"
+                                  }
+                                ]
+                              }
+                            }
+                          ]
+                        },
+                        "dst_arrow": ">"
+                      }
+                    ],
+                    "primary": {},
+                    "value": {}
+                  }
+                }
               }
             ]
           }
@@ -687,6 +1182,171 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+            "value": [
+              {
+                "string": "z",
+                "raw_string": "z"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                  "value": [
+                    {
+                      "string": "z",
+                      "raw_string": "z"
+                    }
+                  ]
+                }
+              },
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                  "value": [
+                    {
+                      "string": "p",
+                      "raw_string": "p"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+              "src": {
+                "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                      "value": [
+                        {
+                          "string": "y",
+                          "raw_string": "y"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                      "value": [
+                        {
+                          "string": "z",
+                          "raw_string": "z"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                      "value": [
+                        {
+                          "string": "p",
+                          "raw_string": "p"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+              "edges": [
+                {
+                  "range": "TestCompile/edges/nested.d2,0:0:0-0:10:10",
+                  "src": {
+                    "range": "TestCompile/edges/nested.d2,0:0:0-0:3:3",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:2:2-0:3:3",
+                          "value": [
+                            {
+                              "string": "y",
+                              "raw_string": "y"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/edges/nested.d2,0:7:7-0:10:10",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:7:7-0:8:8",
+                          "value": [
+                            {
+                              "string": "z",
+                              "raw_string": "z"
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/nested.d2,0:9:9-0:10:10",
+                          "value": [
+                            {
+                              "string": "p",
+                              "raw_string": "p"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     }

testdata/d2ir/TestCompile/edges/root.exp.json

@@ -112,6 +112,116 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+            "value": [
+              {
+                "string": "x",
+                "raw_string": "x"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                  "value": [
+                    {
+                      "string": "x",
+                      "raw_string": "x"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/edges/root.d2,0:0:0-0:6:6",
+              "src": {
+                "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
+                          "string": "y",
+                          "raw_string": "y"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/edges/root.d2,0:0:0-0:6:6",
+              "edges": [
+                {
+                  "range": "TestCompile/edges/root.d2,0:0:0-0:6:6",
+                  "src": {
+                    "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "y",
+                              "raw_string": "y"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     },
@@ -227,6 +337,116 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+            "value": [
+              {
+                "string": "y",
+                "raw_string": "y"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                  "value": [
+                    {
+                      "string": "y",
+                      "raw_string": "y"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/edges/root.d2,0:0:0-0:6:6",
+              "src": {
+                "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
+                          "string": "y",
+                          "raw_string": "y"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/edges/root.d2,0:0:0-0:6:6",
+              "edges": [
+                {
+                  "range": "TestCompile/edges/root.d2,0:0:0-0:6:6",
+                  "src": {
+                    "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/root.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/root.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "y",
+                              "raw_string": "y"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     }

testdata/d2ir/TestCompile/edges/underscore.exp.json

@@ -138,6 +138,148 @@
                     "value": {}
                   }
                 }
+              },
+              {
+                "string": {
+                  "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                  "value": [
+                    {
+                      "string": "z",
+                      "raw_string": "z"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": ",0:0:0-0:0:0",
+                        "value": [
+                          {
+                            "string": "p"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                        "value": [
+                          {
+                            "string": "z",
+                            "raw_string": "z"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": {
+                    "range": "TestCompile/edges/underscore.d2,0:5:5-0:13:13",
+                    "src": {
+                      "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/underscore.d2,0:5:5-0:6:6",
+                            "value": [
+                              {
+                                "string": "_",
+                                "raw_string": "_"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                            "value": [
+                              {
+                                "string": "x",
+                                "raw_string": "x"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "src_arrow": "",
+                    "dst": {
+                      "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                            "value": [
+                              {
+                                "string": "z",
+                                "raw_string": "z"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "dst_arrow": ">"
+                  },
+                  "key": {
+                    "range": "TestCompile/edges/underscore.d2,0:5:5-0:14:14",
+                    "edges": [
+                      {
+                        "range": "TestCompile/edges/underscore.d2,0:5:5-0:13:13",
+                        "src": {
+                          "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+                          "path": [
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/underscore.d2,0:5:5-0:6:6",
+                                "value": [
+                                  {
+                                    "string": "_",
+                                    "raw_string": "_"
+                                  }
+                                ]
+                              }
+                            },
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                                "value": [
+                                  {
+                                    "string": "x",
+                                    "raw_string": "x"
+                                  }
+                                ]
+                              }
+                            }
+                          ]
+                        },
+                        "src_arrow": "",
+                        "dst": {
+                          "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                          "path": [
+                            {
+                              "unquoted_string": {
+                                "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                                "value": [
+                                  {
+                                    "string": "z",
+                                    "raw_string": "z"
+                                  }
+                                ]
+                              }
+                            }
+                          ]
+                        },
+                        "dst_arrow": ">"
+                      }
+                    ],
+                    "primary": {},
+                    "value": {}
+                  }
+                }
               }
             ]
           }
@@ -258,6 +400,147 @@
               }
             }
           }
+        },
+        {
+          "string": {
+            "range": ",0:0:0-0:0:0",
+            "value": [
+              {
+                "string": "p"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": ",0:0:0-0:0:0",
+                  "value": [
+                    {
+                      "string": "p"
+                    }
+                  ]
+                }
+              },
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                  "value": [
+                    {
+                      "string": "z",
+                      "raw_string": "z"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/edges/underscore.d2,0:5:5-0:13:13",
+              "src": {
+                "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/underscore.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
+                          "string": "_",
+                          "raw_string": "_"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                      "value": [
+                        {
+                          "string": "z",
+                          "raw_string": "z"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/edges/underscore.d2,0:5:5-0:14:14",
+              "edges": [
+                {
+                  "range": "TestCompile/edges/underscore.d2,0:5:5-0:13:13",
+                  "src": {
+                    "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/underscore.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "_",
+                              "raw_string": "_"
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                          "value": [
+                            {
+                              "string": "z",
+                              "raw_string": "z"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     },
@@ -406,6 +689,138 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+            "value": [
+              {
+                "string": "x",
+                "raw_string": "x"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                  "value": [
+                    {
+                      "string": "x",
+                      "raw_string": "x"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/edges/underscore.d2,0:5:5-0:13:13",
+              "src": {
+                "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/underscore.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
+                          "string": "_",
+                          "raw_string": "_"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                      "value": [
+                        {
+                          "string": "z",
+                          "raw_string": "z"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/edges/underscore.d2,0:5:5-0:14:14",
+              "edges": [
+                {
+                  "range": "TestCompile/edges/underscore.d2,0:5:5-0:13:13",
+                  "src": {
+                    "range": "TestCompile/edges/underscore.d2,0:5:5-0:8:8",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/underscore.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "_",
+                              "raw_string": "_"
+                            }
+                          ]
+                        }
+                      },
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/underscore.d2,0:7:7-0:8:8",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/edges/underscore.d2,0:12:12-0:13:13",
+                          "value": [
+                            {
+                              "string": "z",
+                              "raw_string": "z"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     }

testdata/d2ir/TestCompile/layers/errs/4/good_edge.exp.json

@@ -450,6 +450,402 @@
                           "value": {}
                         }
                       }
+                    },
+                    {
+                      "string": {
+                        "range": "TestCompile/layers/errs/4/good_edge.d2,0:9:9-0:10:10",
+                        "value": [
+                          {
+                            "string": "y",
+                            "raw_string": "y"
+                          }
+                        ]
+                      },
+                      "key_path": {
+                        "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:10:10",
+                        "path": [
+                          {
+                            "unquoted_string": {
+                              "range": "TestCompile/layers/errs/4/good_edge.d2,0:9:9-0:10:10",
+                              "value": [
+                                {
+                                  "string": "y",
+                                  "raw_string": "y"
+                                }
+                              ]
+                            }
+                          }
+                        ]
+                      },
+                      "context": {
+                        "edge": {
+                          "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:24:24",
+                          "src": {
+                            "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:10:10",
+                            "path": [
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:6:6",
+                                  "value": [
+                                    {
+                                      "string": "layers",
+                                      "raw_string": "layers"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:7:7-0:8:8",
+                                  "value": [
+                                    {
+                                      "string": "x",
+                                      "raw_string": "x"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:9:9-0:10:10",
+                                  "value": [
+                                    {
+                                      "string": "y",
+                                      "raw_string": "y"
+                                    }
+                                  ]
+                                }
+                              }
+                            ]
+                          },
+                          "src_arrow": "",
+                          "dst": {
+                            "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:24:24",
+                            "path": [
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:20:20",
+                                  "value": [
+                                    {
+                                      "string": "layers",
+                                      "raw_string": "layers"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:21:21-0:22:22",
+                                  "value": [
+                                    {
+                                      "string": "x",
+                                      "raw_string": "x"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:23:23-0:24:24",
+                                  "value": [
+                                    {
+                                      "string": "y",
+                                      "raw_string": "y"
+                                    }
+                                  ]
+                                }
+                              }
+                            ]
+                          },
+                          "dst_arrow": ">"
+                        },
+                        "key": {
+                          "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:24:24",
+                          "edges": [
+                            {
+                              "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:24:24",
+                              "src": {
+                                "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:10:10",
+                                "path": [
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:6:6",
+                                      "value": [
+                                        {
+                                          "string": "layers",
+                                          "raw_string": "layers"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:7:7-0:8:8",
+                                      "value": [
+                                        {
+                                          "string": "x",
+                                          "raw_string": "x"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:9:9-0:10:10",
+                                      "value": [
+                                        {
+                                          "string": "y",
+                                          "raw_string": "y"
+                                        }
+                                      ]
+                                    }
+                                  }
+                                ]
+                              },
+                              "src_arrow": "",
+                              "dst": {
+                                "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:24:24",
+                                "path": [
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:20:20",
+                                      "value": [
+                                        {
+                                          "string": "layers",
+                                          "raw_string": "layers"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:21:21-0:22:22",
+                                      "value": [
+                                        {
+                                          "string": "x",
+                                          "raw_string": "x"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:23:23-0:24:24",
+                                      "value": [
+                                        {
+                                          "string": "y",
+                                          "raw_string": "y"
+                                        }
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+                                  }
+                                ]
+                              },
+                              "dst_arrow": ">"
+                            }
+                          ],
+                          "primary": {},
+                          "value": {}
+                        }
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+                    },
+                    {
+                      "string": {
+                        "range": "TestCompile/layers/errs/4/good_edge.d2,0:23:23-0:24:24",
+                        "value": [
+                          {
+                            "string": "y",
+                            "raw_string": "y"
+                          }
+                        ]
+                      },
+                      "key_path": {
+                        "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:24:24",
+                        "path": [
+                          {
+                            "unquoted_string": {
+                              "range": "TestCompile/layers/errs/4/good_edge.d2,0:23:23-0:24:24",
+                              "value": [
+                                {
+                                  "string": "y",
+                                  "raw_string": "y"
+                                }
+                              ]
+                            }
+                          }
+                        ]
+                      },
+                      "context": {
+                        "edge": {
+                          "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:24:24",
+                          "src": {
+                            "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:10:10",
+                            "path": [
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:6:6",
+                                  "value": [
+                                    {
+                                      "string": "layers",
+                                      "raw_string": "layers"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:7:7-0:8:8",
+                                  "value": [
+                                    {
+                                      "string": "x",
+                                      "raw_string": "x"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:9:9-0:10:10",
+                                  "value": [
+                                    {
+                                      "string": "y",
+                                      "raw_string": "y"
+                                    }
+                                  ]
+                                }
+                              }
+                            ]
+                          },
+                          "src_arrow": "",
+                          "dst": {
+                            "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:24:24",
+                            "path": [
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:20:20",
+                                  "value": [
+                                    {
+                                      "string": "layers",
+                                      "raw_string": "layers"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:21:21-0:22:22",
+                                  "value": [
+                                    {
+                                      "string": "x",
+                                      "raw_string": "x"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/layers/errs/4/good_edge.d2,0:23:23-0:24:24",
+                                  "value": [
+                                    {
+                                      "string": "y",
+                                      "raw_string": "y"
+                                    }
+                                  ]
+                                }
+                              }
+                            ]
+                          },
+                          "dst_arrow": ">"
+                        },
+                        "key": {
+                          "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:24:24",
+                          "edges": [
+                            {
+                              "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:24:24",
+                              "src": {
+                                "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:10:10",
+                                "path": [
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:0:0-0:6:6",
+                                      "value": [
+                                        {
+                                          "string": "layers",
+                                          "raw_string": "layers"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:7:7-0:8:8",
+                                      "value": [
+                                        {
+                                          "string": "x",
+                                          "raw_string": "x"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:9:9-0:10:10",
+                                      "value": [
+                                        {
+                                          "string": "y",
+                                          "raw_string": "y"
+                                        }
+                                      ]
+                                    }
+                                  }
+                                ]
+                              },
+                              "src_arrow": "",
+                              "dst": {
+                                "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:24:24",
+                                "path": [
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:14:14-0:20:20",
+                                      "value": [
+                                        {
+                                          "string": "layers",
+                                          "raw_string": "layers"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:21:21-0:22:22",
+                                      "value": [
+                                        {
+                                          "string": "x",
+                                          "raw_string": "x"
+                                        }
+                                      ]
+                                    }
+                                  },
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/layers/errs/4/good_edge.d2,0:23:23-0:24:24",
+                                      "value": [
+                                        {
+                                          "string": "y",
+                                          "raw_string": "y"
+                                        }
+                                      ]
+                                    }
+                                  }
+                                ]
+                              },
+                              "dst_arrow": ">"
+                            }
+                          ],
+                          "primary": {},
+                          "value": {}
+                        }
+                      }
                     }
                   ]
                 }

testdata/d2ir/TestCompile/layers/root.exp.json

@@ -112,6 +112,116 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+            "value": [
+              {
+                "string": "x",
+                "raw_string": "x"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                  "value": [
+                    {
+                      "string": "x",
+                      "raw_string": "x"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/layers/root.d2,0:0:0-0:6:6",
+              "src": {
+                "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
+                          "string": "y",
+                          "raw_string": "y"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/layers/root.d2,0:0:0-0:6:6",
+              "edges": [
+                {
+                  "range": "TestCompile/layers/root.d2,0:0:0-0:6:6",
+                  "src": {
+                    "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "y",
+                              "raw_string": "y"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     },
@@ -227,6 +337,116 @@
               "value": {}
             }
           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+            "value": [
+              {
+                "string": "y",
+                "raw_string": "y"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                  "value": [
+                    {
+                      "string": "y",
+                      "raw_string": "y"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": {
+              "range": "TestCompile/layers/root.d2,0:0:0-0:6:6",
+              "src": {
+                "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
+                          "string": "x",
+                          "raw_string": "x"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
+                          "string": "y",
+                          "raw_string": "y"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/layers/root.d2,0:0:0-0:6:6",
+              "edges": [
+                {
+                  "range": "TestCompile/layers/root.d2,0:0:0-0:6:6",
+                  "src": {
+                    "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/layers/root.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "x",
+                              "raw_string": "x"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/layers/root.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "y",
+                              "raw_string": "y"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
         }
       ]
     },

testdata/d2ir/TestCompile/patterns/double-glob.exp.json

@@ -0,0 +1,573 @@
+{
+  "fields": [
+    {
+      "name": "shared",
+      "composite": {
+        "fields": [
+          {
+            "name": "animate",
+            "references": [
+              {
+                "string": {
+                  "range": "TestCompile/patterns/double-glob.d2,0:7:7-0:14:14",
+                  "value": [
+                    {
+                      "string": "animate",
+                      "raw_string": "animate"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:14:14",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:6:6",
+                        "value": [
+                          {
+                            "string": "shared",
+                            "raw_string": "shared"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,0:7:7-0:14:14",
+                        "value": [
+                          {
+                            "string": "animate",
+                            "raw_string": "animate"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": null,
+                  "key": {
+                    "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:14:14",
+                    "key": {
+                      "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:14:14",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:6:6",
+                            "value": [
+                              {
+                                "string": "shared",
+                                "raw_string": "shared"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,0:7:7-0:14:14",
+                            "value": [
+                              {
+                                "string": "animate",
+                                "raw_string": "animate"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "primary": {},
+                    "value": {}
+                  }
+                }
+              }
+            ]
+          },
+          {
+            "name": "animal",
+            "references": [
+              {
+                "string": {
+                  "range": "TestCompile/patterns/double-glob.d2,1:7:22-1:13:28",
+                  "value": [
+                    {
+                      "string": "animal",
+                      "raw_string": "animal"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:13:28",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:6:21",
+                        "value": [
+                          {
+                            "string": "shared",
+                            "raw_string": "shared"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,1:7:22-1:13:28",
+                        "value": [
+                          {
+                            "string": "animal",
+                            "raw_string": "animal"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": null,
+                  "key": {
+                    "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:13:28",
+                    "key": {
+                      "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:13:28",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:6:21",
+                            "value": [
+                              {
+                                "string": "shared",
+                                "raw_string": "shared"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,1:7:22-1:13:28",
+                            "value": [
+                              {
+                                "string": "animal",
+                                "raw_string": "animal"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "primary": {},
+                    "value": {}
+                  }
+                }
+              }
+            ]
+          },
+          {
+            "name": "style",
+            "composite": {
+              "fields": [
+                {
+                  "name": "fill",
+                  "primary": {
+                    "value": {
+                      "range": "TestCompile/patterns/double-glob.d2,2:15:44-2:18:47",
+                      "value": [
+                        {
+                          "string": "red",
+                          "raw_string": "red"
+                        }
+                      ]
+                    }
+                  },
+                  "references": [
+                    {
+                      "string": {
+                        "range": "TestCompile/patterns/double-glob.d2,2:9:38-2:13:42",
+                        "value": [
+                          {
+                            "string": "fill",
+                            "raw_string": "fill"
+                          }
+                        ]
+                      },
+                      "key_path": {
+                        "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:13:42",
+                        "path": [
+                          {
+                            "unquoted_string": {
+                              "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:2:31",
+                              "value": [
+                                {
+                                  "string": "**",
+                                  "raw_string": "**"
+                                }
+                              ],
+                              "pattern": [
+                                "*",
+                                "",
+                                "*"
+                              ]
+                            }
+                          },
+                          {
+                            "unquoted_string": {
+                              "range": "TestCompile/patterns/double-glob.d2,2:3:32-2:8:37",
+                              "value": [
+                                {
+                                  "string": "style",
+                                  "raw_string": "style"
+                                }
+                              ]
+                            }
+                          },
+                          {
+                            "unquoted_string": {
+                              "range": "TestCompile/patterns/double-glob.d2,2:9:38-2:13:42",
+                              "value": [
+                                {
+                                  "string": "fill",
+                                  "raw_string": "fill"
+                                }
+                              ]
+                            }
+                          }
+                        ]
+                      },
+                      "context": {
+                        "edge": null,
+                        "key": {
+                          "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:18:47",
+                          "key": {
+                            "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:13:42",
+                            "path": [
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:2:31",
+                                  "value": [
+                                    {
+                                      "string": "**",
+                                      "raw_string": "**"
+                                    }
+                                  ],
+                                  "pattern": [
+                                    "*",
+                                    "",
+                                    "*"
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/patterns/double-glob.d2,2:3:32-2:8:37",
+                                  "value": [
+                                    {
+                                      "string": "style",
+                                      "raw_string": "style"
+                                    }
+                                  ]
+                                }
+                              },
+                              {
+                                "unquoted_string": {
+                                  "range": "TestCompile/patterns/double-glob.d2,2:9:38-2:13:42",
+                                  "value": [
+                                    {
+                                      "string": "fill",
+                                      "raw_string": "fill"
+                                    }
+                                  ]
+                                }
+                              }
+                            ]
+                          },
+                          "primary": {},
+                          "value": {
+                            "unquoted_string": {
+                              "range": "TestCompile/patterns/double-glob.d2,2:15:44-2:18:47",
+                              "value": [
+                                {
+                                  "string": "red",
+                                  "raw_string": "red"
+                                }
+                              ]
+                            }
+                          }
+                        }
+                      }
+                    }
+                  ]
+                }
+              ],
+              "edges": null
+            },
+            "references": [
+              {
+                "string": {
+                  "range": "TestCompile/patterns/double-glob.d2,2:3:32-2:8:37",
+                  "value": [
+                    {
+                      "string": "style",
+                      "raw_string": "style"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:13:42",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:2:31",
+                        "value": [
+                          {
+                            "string": "**",
+                            "raw_string": "**"
+                          }
+                        ],
+                        "pattern": [
+                          "*",
+                          "",
+                          "*"
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,2:3:32-2:8:37",
+                        "value": [
+                          {
+                            "string": "style",
+                            "raw_string": "style"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,2:9:38-2:13:42",
+                        "value": [
+                          {
+                            "string": "fill",
+                            "raw_string": "fill"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": null,
+                  "key": {
+                    "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:18:47",
+                    "key": {
+                      "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:13:42",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,2:0:29-2:2:31",
+                            "value": [
+                              {
+                                "string": "**",
+                                "raw_string": "**"
+                              }
+                            ],
+                            "pattern": [
+                              "*",
+                              "",
+                              "*"
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,2:3:32-2:8:37",
+                            "value": [
+                              {
+                                "string": "style",
+                                "raw_string": "style"
+                              }
+                            ]
+                          }
+                        },
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/double-glob.d2,2:9:38-2:13:42",
+                            "value": [
+                              {
+                                "string": "fill",
+                                "raw_string": "fill"
+                              }
+                            ]
+                          }
+                        }
+                      ]
+                    },
+                    "primary": {},
+                    "value": {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/double-glob.d2,2:15:44-2:18:47",
+                        "value": [
+                          {
+                            "string": "red",
+                            "raw_string": "red"
+                          }
+                        ]
+                      }
+                    }
+                  }
+                }
+              }
+            ]
+          }
+        ],
+        "edges": null
+      },
+      "references": [
+        {
+          "string": {
+            "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:6:6",
+            "value": [
+              {
+                "string": "shared",
+                "raw_string": "shared"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:14:14",
+            "path": [
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+                  "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:6:6",
+                  "value": [
+                    {
+                      "string": "shared",
+                      "raw_string": "shared"
+                    }
+                  ]
+                }
+              },
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/patterns/double-glob.d2,0:7:7-0:14:14",
+                  "value": [
+                    {
+                      "string": "animate",
+                      "raw_string": "animate"
+                    }
+                  ]
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+              }
+            ]
+          },
+          "context": {
+            "edge": null,
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+              "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:14:14",
+              "key": {
+                "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:14:14",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/double-glob.d2,0:0:0-0:6:6",
+                      "value": [
+                        {
+                          "string": "shared",
+                          "raw_string": "shared"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/double-glob.d2,0:7:7-0:14:14",
+                      "value": [
+                        {
+                          "string": "animate",
+                          "raw_string": "animate"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "primary": {},
+              "value": {}
+            }
+          }
+        },
+        {
+          "string": {
+            "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:6:21",
+            "value": [
+              {
+                "string": "shared",
+                "raw_string": "shared"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:13:28",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:6:21",
+                  "value": [
+                    {
+                      "string": "shared",
+                      "raw_string": "shared"
+                    }
+                  ]
+                }
+              },
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/patterns/double-glob.d2,1:7:22-1:13:28",
+                  "value": [
+                    {
+                      "string": "animal",
+                      "raw_string": "animal"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": null,
+            "key": {
+              "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:13:28",
+              "key": {
+                "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:13:28",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/double-glob.d2,1:0:15-1:6:21",
+                      "value": [
+                        {
+                          "string": "shared",
+                          "raw_string": "shared"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/double-glob.d2,1:7:22-1:13:28",
+                      "value": [
+                        {
+                          "string": "animal",
+                          "raw_string": "animal"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    }
+  ],
+  "edges": null
+}

testdata/d2ir/TestCompile/patterns/edge/1.exp.json

@@ -0,0 +1,582 @@
+{
+  "fields": [
+    {
+      "name": "animate",
+      "references": [
+        {
+          "string": {
+            "range": "TestCompile/patterns/edge/1.d2,0:0:0-0:7:7",
+            "value": [
+              {
+                "string": "animate",
+                "raw_string": "animate"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/patterns/edge/1.d2,0:0:0-0:7:7",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/patterns/edge/1.d2,0:0:0-0:7:7",
+                  "value": [
+                    {
+                      "string": "animate",
+                      "raw_string": "animate"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": null,
+            "key": {
+              "range": "TestCompile/patterns/edge/1.d2,0:0:0-0:7:7",
+              "key": {
+                "range": "TestCompile/patterns/edge/1.d2,0:0:0-0:7:7",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,0:0:0-0:7:7",
+                      "value": [
+                        {
+                          "string": "animate",
+                          "raw_string": "animate"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    },
+    {
+      "name": "animal",
+      "references": [
+        {
+          "string": {
+            "range": "TestCompile/patterns/edge/1.d2,1:0:8-1:6:14",
+            "value": [
+              {
+                "string": "animal",
+                "raw_string": "animal"
+              }
+            ]
+          },
+          "key_path": {
+            "range": "TestCompile/patterns/edge/1.d2,1:0:8-1:6:14",
+            "path": [
+              {
+                "unquoted_string": {
+                  "range": "TestCompile/patterns/edge/1.d2,1:0:8-1:6:14",
+                  "value": [
+                    {
+                      "string": "animal",
+                      "raw_string": "animal"
+                    }
+                  ]
+                }
+              }
+            ]
+          },
+          "context": {
+            "edge": null,
+            "key": {
+              "range": "TestCompile/patterns/edge/1.d2,1:0:8-1:6:14",
+              "key": {
+                "range": "TestCompile/patterns/edge/1.d2,1:0:8-1:6:14",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,1:0:8-1:6:14",
+                      "value": [
+                        {
+                          "string": "animal",
+                          "raw_string": "animal"
+                        }
+                      ]
+                    }
+                  }
+                ]
+              },
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    }
+  ],
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+    {
+      "edge_id": {
+        "src_path": [
+          "animate"
+        ],
+        "src_arrow": false,
+        "dst_path": [
+          "animate"
+        ],
+        "dst_arrow": true,
+        "index": 0
+      },
+      "references": [
+        {
+          "context": {
+            "edge": {
+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "src": {
+                "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
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+                        "*"
+                      ]
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+                  }
+                ]
+              },
+              "dst_arrow": ">"
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+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "edges": [
+                {
+                  "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+                  "src": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    },
+    {
+      "edge_id": {
+        "src_path": [
+          "animate"
+        ],
+        "src_arrow": false,
+        "dst_path": [
+          "animal"
+        ],
+        "dst_arrow": true,
+        "index": 0
+      },
+      "references": [
+        {
+          "context": {
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+              "src": {
+                "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "edges": [
+                {
+                  "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+                  "src": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    },
+    {
+      "edge_id": {
+        "src_path": [
+          "animal"
+        ],
+        "src_arrow": false,
+        "dst_path": [
+          "animate"
+        ],
+        "dst_arrow": true,
+        "index": 0
+      },
+      "references": [
+        {
+          "context": {
+            "edge": {
+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "src": {
+                "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "edges": [
+                {
+                  "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+                  "src": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    },
+    {
+      "edge_id": {
+        "src_path": [
+          "animal"
+        ],
+        "src_arrow": false,
+        "dst_path": [
+          "animal"
+        ],
+        "dst_arrow": true,
+        "index": 0
+      },
+      "references": [
+        {
+          "context": {
+            "edge": {
+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "src": {
+                "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "src_arrow": "",
+              "dst": {
+                "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                      "value": [
+                        {
+                          "string": "an*",
+                          "raw_string": "an*"
+                        }
+                      ],
+                      "pattern": [
+                        "an",
+                        "*"
+                      ]
+                    }
+                  }
+                ]
+              },
+              "dst_arrow": ">"
+            },
+            "key": {
+              "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+              "edges": [
+                {
+                  "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:10:25",
+                  "src": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:0:15-2:3:18",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/patterns/edge/1.d2,2:7:22-2:10:25",
+                          "value": [
+                            {
+                              "string": "an*",
+                              "raw_string": "an*"
+                            }
+                          ],
+                          "pattern": [
+                            "an",
+                            "*"
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "dst_arrow": ">"
+                }
+              ],
+              "primary": {},
+              "value": {}
+            }
+          }
+        }
+      ]
+    }
+  ]
+}

testdata/d2ir/TestCompile/patterns/edge/2.exp.json

@@ -0,0 +1,862 @@
+{
+  "fields": [
+    {
+      "name": "shared",
+      "composite": {
+        "fields": [
+          {
+            "name": "animate",
+            "references": [
+              {
+                "string": {
+                  "range": "TestCompile/patterns/edge/2.d2,0:7:7-0:14:14",
+                  "value": [
+                    {
+                      "string": "animate",
+                      "raw_string": "animate"
+                    }
+                  ]
+                },
+                "key_path": {
+                  "range": "TestCompile/patterns/edge/2.d2,0:0:0-0:14:14",
+                  "path": [
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/edge/2.d2,0:0:0-0:6:6",
+                        "value": [
+                          {
+                            "string": "shared",
+                            "raw_string": "shared"
+                          }
+                        ]
+                      }
+                    },
+                    {
+                      "unquoted_string": {
+                        "range": "TestCompile/patterns/edge/2.d2,0:7:7-0:14:14",
+                        "value": [
+                          {
+                            "string": "animate",
+                            "raw_string": "animate"
+                          }
+                        ]
+                      }
+                    }
+                  ]
+                },
+                "context": {
+                  "edge": null,
+                  "key": {
+                    "range": "TestCompile/patterns/edge/2.d2,0:0:0-0:14:14",
+                    "key": {
+                      "range": "TestCompile/patterns/edge/2.d2,0:0:0-0:14:14",
+                      "path": [
+                        {
+                          "unquoted_string": {
+                            "range": "TestCompile/patterns/edge/2.d2,0:0:0-0:6:6",
+                            "value": [
+                              {
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+                                "value": [
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+                                    "raw_string": "an*"
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+                      "value": [
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+  ],
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+}

testdata/d2ir/TestCompile/patterns/nested/prefix-suffix/3.exp.json

@@ -0,0 +1,997 @@
+{
+  "fields": [
+    {
+      "name": "animate",
+      "composite": {
+        "fields": [
+          {
+            "name": "constant",
+            "composite": {
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+                {
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+                                "raw_string": "a*n*t*"
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+                                "raw_string": "constant"
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+                            "value": [
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+                        "value": [
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+                            "raw_string": "globbed"
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+                      "raw_string": "constant"
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+                      "value": [
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+                      "value": [
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+                          "raw_string": "constant"
+                        }
+                      ]
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+                      "value": [
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+                          "string": "thinkerthinker",
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+}

testdata/d2ir/TestCompile/scenarios/edge.exp.json

@@ -112,6 +112,116 @@
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             }
           }
+        },
+        {
+          "string": {
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+                "path": [
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+                      "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                      "value": [
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+                          "raw_string": "a"
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+              "dst": {
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+                "path": [
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+                      "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
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+                          "raw_string": "b"
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+            },
+            "key": {
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+              "edges": [
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+                  "src": {
+                    "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "a",
+                              "raw_string": "a"
+                            }
+                          ]
+                        }
+                      }
+                    ]
+                  },
+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
+                              "string": "b",
+                              "raw_string": "b"
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+                  "dst_arrow": ">"
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+              "primary": {},
+              "value": {}
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       ]
     },
@@ -227,6 +337,116 @@
               "value": {}
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+        },
+        {
+          "string": {
+            "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
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+                      "raw_string": "b"
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+            ]
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+            "edge": {
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+              "src": {
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+                "path": [
+                  {
+                    "unquoted_string": {
+                      "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                      "value": [
+                        {
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+                          "raw_string": "a"
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+              "dst": {
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+                "path": [
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+                      "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                      "value": [
+                        {
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+                          "raw_string": "b"
+                        }
+                      ]
+                    }
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+              "dst_arrow": ">"
+            },
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+              "edges": [
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+                  "range": "TestCompile/scenarios/edge.d2,0:0:0-0:6:6",
+                  "src": {
+                    "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                          "value": [
+                            {
+                              "string": "a",
+                              "raw_string": "a"
+                            }
+                          ]
+                        }
+                      }
+                    ]
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+                  "src_arrow": "",
+                  "dst": {
+                    "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                    "path": [
+                      {
+                        "unquoted_string": {
+                          "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                          "value": [
+                            {
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+                              "raw_string": "b"
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+                  "dst_arrow": ">"
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+              ],
+              "primary": {},
+              "value": {}
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+          }
         }
       ]
     },
@@ -351,6 +571,116 @@
                         }
                       }
                     },
+                    {
+                      "string": {
+                        "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                        "value": [
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+                            "raw_string": "a"
+                          }
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+                        "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                        "path": [
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+                              "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                              "value": [
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+                                  "raw_string": "a"
+                                }
+                              ]
+                            }
+                          }
+                        ]
+                      },
+                      "context": {
+                        "edge": {
+                          "range": "TestCompile/scenarios/edge.d2,0:0:0-0:6:6",
+                          "src": {
+                            "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                            "path": [
+                              {
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+                                  "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                                  "value": [
+                                    {
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+                                      "raw_string": "a"
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+                                  ]
+                                }
+                              }
+                            ]
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+                          "src_arrow": "",
+                          "dst": {
+                            "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                            "path": [
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+                                  "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                                  "value": [
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+                                      "raw_string": "b"
+                                    }
+                                  ]
+                                }
+                              }
+                            ]
+                          },
+                          "dst_arrow": ">"
+                        },
+                        "key": {
+                          "range": "TestCompile/scenarios/edge.d2,0:0:0-0:6:6",
+                          "edges": [
+                            {
+                              "range": "TestCompile/scenarios/edge.d2,0:0:0-0:6:6",
+                              "src": {
+                                "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                                "path": [
+                                  {
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+                                      "range": "TestCompile/scenarios/edge.d2,0:0:0-0:1:1",
+                                      "value": [
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+                                          "raw_string": "a"
+                                        }
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+                                    }
+                                  }
+                                ]
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+                              "src_arrow": "",
+                              "dst": {
+                                "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                                "path": [
+                                  {
+                                    "unquoted_string": {
+                                      "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                                      "value": [
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+                                          "raw_string": "b"
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+                              "dst_arrow": ">"
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+                          "primary": {},
+                          "value": {}
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                     {
                       "string": {
                         "range": "TestCompile/scenarios/edge.d2,3:5:32-3:6:33",
@@ -614,6 +944,116 @@
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                       }
                     },
+                    {
+                      "string": {
+                        "range": "TestCompile/scenarios/edge.d2,0:5:5-0:6:6",
+                        "value": [
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                       "string": {
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testdata/d2ir/TestCompile/scenarios/root.exp.json

@@ -112,6 +112,116 @@
               "value": {}
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           }
+        },
+        {
+          "string": {
+            "range": "TestCompile/scenarios/root.d2,0:0:0-0:1:1",
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testdata/d2ir/TestCompile/steps/recursive.exp.json

@@ -112,6 +112,116 @@
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testdata/d2ir/TestCompile/steps/root.exp.json

@@ -112,6 +112,116 @@
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           }
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@@ -350,6 +570,116 @@
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@@ -465,6 +795,116 @@
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@@ -1103,6 +1543,116 @@
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@@ -1218,6 +1768,116 @@
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