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Switch to isNodeDescendantOf

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This commit is contained in:
Nathan Shively-Sanders 2015-10-31 12:42:04 -07:00
parent 6aecd43d9a
commit 201266b97f
3 changed files with 10 additions and 23 deletions
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17
src/compiler/checker.ts
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@ -4420,26 +4420,13 @@ namespace ts {
let container = getThisContainer(node, /*includeArrowFunctions*/ false);
let parent = container && container.parent;
if (parent && (isClassLike(parent) || parent.kind === SyntaxKind.InterfaceDeclaration)) {
if (!(container.flags & NodeFlags.Static) && !isConstructorParameter(node, container)) {
if (!(container.flags & NodeFlags.Static) &&
(container.kind !== SyntaxKind.Constructor || isNodeDescendentOf(node, (<ConstructorDeclaration>container).body))) {
return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(parent)).thisType;
}
}
error(node, Diagnostics.A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface);
return unknownType;
function isConstructorParameter(node: Node, container: Node) {
if (container.kind === SyntaxKind.Constructor) {
let ctor = (<ConstructorDeclaration>container);
while (node && node !== ctor) {
if (node === ctor.body) {
return false;
}
node = node.parent;
}
return true;
}
}
}
function getTypeFromThisTypeNode(node: TypeNode): Type {

8
src/compiler/emitter.ts
View file

@ -359,14 +359,6 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, Promi
sourceMaps: sourceMapDataList
};
function isNodeDescendentOf(node: Node, ancestor: Node): boolean {
while (node) {
if (node === ancestor) return true;
node = node.parent;
}
return false;
}
function isUniqueLocalName(name: string, container: Node): boolean {
for (let node = container; isNodeDescendentOf(node, container); node = node.nextContainer) {
if (node.locals && hasProperty(node.locals, name)) {

8
src/compiler/utilities.ts
View file

@ -1167,6 +1167,14 @@ namespace ts {
return !!node && (node.kind === SyntaxKind.ArrayBindingPattern || node.kind === SyntaxKind.ObjectBindingPattern);
}
export function isNodeDescendentOf(node: Node, ancestor: Node): boolean {
while (node) {
if (node === ancestor) return true;
node = node.parent;
}
return false;
}
export function isInAmbientContext(node: Node): boolean {
while (node) {
if (node.flags & (NodeFlags.Ambient | NodeFlags.DeclarationFile)) {