Merge pull request #1401 from alixander/fix-underscore

fix idval edge case

ci/release/changelogs/next.md

@@ -5,3 +5,5 @@
 - Display version on CLI help invocation [#1400](https://github.com/terrastruct/d2/pull/1400)
 
 #### Bugfixes ⛑️
+
+- Fixes edge case in compiler using dots in quotes [#1401](https://github.com/terrastruct/d2/pull/1401)

d2compiler/compile.go

@@ -282,8 +282,8 @@ func (c *compiler) compileField(obj *d2graph.Object, f *d2ir.Field) {
 			Scope:           fr.Context.Scope,
 		}
 		if fr.Context.ScopeMap != nil {
-			scopeObjIDA := d2ir.BoardIDA(fr.Context.ScopeMap)
-			r.ScopeObj = obj.Graph.Root.EnsureChildIDVal(scopeObjIDA)
+			scopeObjIDA := d2graphIDA(d2ir.BoardIDA(fr.Context.ScopeMap))
+			r.ScopeObj = obj.Graph.Root.EnsureChild(scopeObjIDA)
 		}
 		obj.References = append(obj.References, r)
 	}
@@ -635,8 +635,8 @@ func (c *compiler) compileEdge(obj *d2graph.Object, e *d2ir.Edge) {
 			Scope:           er.Context.Scope,
 		}
 		if er.Context.ScopeMap != nil {
-			scopeObjIDA := d2ir.BoardIDA(er.Context.ScopeMap)
-			r.ScopeObj = edge.Src.Graph.Root.EnsureChildIDVal(scopeObjIDA)
+			scopeObjIDA := d2graphIDA(d2ir.BoardIDA(er.Context.ScopeMap))
+			r.ScopeObj = edge.Src.Graph.Root.EnsureChild(scopeObjIDA)
 		}
 		edge.References = append(edge.References, r)
 	}

d2compiler/compile_test.go

@@ -315,6 +315,20 @@ containers: {
 `,
 			expErr: `d2/testdata/d2compiler/TestCompile/image_children_Steps.d2:4:3: steps is only allowed at a board root`,
 		},
+		{
+			name: "name-with-dot-underscore",
+			text: `A: {
+  _.C
+}
+
+"D.E": {
+  _.C
+}
+`,
+			assertions: func(t *testing.T, g *d2graph.Graph) {
+				tassert.Equal(t, 3, len(g.Objects))
+			},
+		},
 		{
 			name: "stroke-width",
 

d2graph/d2graph.go

@@ -671,38 +671,6 @@ func (obj *Object) HasChild(ids []string) (*Object, bool) {
 	return child, true
 }
 
-// Keep in sync with EnsureChild.
-func (obj *Object) EnsureChildIDVal(ids []string) *Object {
-	if len(ids) == 0 {
-		return obj
-	}
-	if len(ids) == 1 && ids[0] != "style" {
-		_, ok := ReservedKeywords[ids[0]]
-		if ok {
-			return obj
-		}
-	}
-
-	id := ids[0]
-	ids = ids[1:]
-
-	var child *Object
-	for _, ch2 := range obj.ChildrenArray {
-		if ch2.IDVal == id {
-			child = ch2
-			break
-		}
-	}
-	if child == nil {
-		child = obj.newObject(id)
-	}
-
-	if len(ids) >= 1 {
-		return child.EnsureChildIDVal(ids)
-	}
-	return child
-}
-
 func (obj *Object) HasEdge(mk *d2ast.Key) (*Edge, bool) {
 	ea, ok := obj.FindEdges(mk)
 	if !ok {