Fix isSymbolInScopeOfMappedTypeParameter to include mapped types

ahejlsberg · ahejlsberg · commit 16103a9ca2ba · 2017-01-30T15:40:31.000-08:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -6864,6 +6864,11 @@ namespace ts {
                             }
                         }
                         break;
+                    case SyntaxKind.MappedType:
+                        if (contains(mappedTypes, getDeclaredTypeOfTypeParameter(getSymbolOfNode((<MappedTypeNode>node).typeParameter)))) {
+                            return true;
+                        }
+                        break;
                     case SyntaxKind.JSDocFunctionType:
                         const func = node as JSDocFunctionType;
                         for (const p of func.parameters) {

Original file line number	Diff line number	Diff line change
`@@ -6864,6 +6864,11 @@ namespace ts {`
`6864`	`6864`	`}`
`6865`	`6865`	`}`
`6866`	`6866`	`break;`
	`6867`	`+ case SyntaxKind.MappedType:`
	`6868`	`+ if (contains(mappedTypes, getDeclaredTypeOfTypeParameter(getSymbolOfNode((<MappedTypeNode>node).typeParameter)))) {`
	`6869`	`+ return true;`
	`6870`	`+ }`
	`6871`	`+ break;`
`6867`	`6872`	`case SyntaxKind.JSDocFunctionType:`
`6868`	`6873`	`const func = node as JSDocFunctionType;`
`6869`	`6874`	`for (const p of func.parameters) {`