Merge pull request microsoft#14581 from Microsoft/foreachchild

Andy · web-flow · commit 18f0d85bff4c · 2017-03-20T14:56:21.000-07:00
Expose `forEachChild` as a method of Node
diff --git a/src/services/services.ts b/src/services/services.ts
@@ -210,6 +210,10 @@ namespace ts {
 
             return child.kind < SyntaxKind.FirstNode ? child : child.getLastToken(sourceFile);
         }
+
+        public forEachChild<T>(cbNode: (node: Node) => T, cbNodeArray?: (nodes: Node[]) => T): T {
+            return forEachChild(this, cbNode, cbNodeArray);
+        }
     }
 
     class TokenOrIdentifierObject implements Node {
@@ -283,6 +287,10 @@ namespace ts {
         public getLastToken(): Node {
             return undefined;
         }
+
+        public forEachChild<T>(): T {
+            return undefined;
+        }
     }
 
     class SymbolObject implements Symbol {
diff --git a/src/services/types.ts b/src/services/types.ts
@@ -18,6 +18,8 @@ namespace ts {
         getText(sourceFile?: SourceFile): string;
         getFirstToken(sourceFile?: SourceFile): Node;
         getLastToken(sourceFile?: SourceFile): Node;
+        // See ts.forEachChild for documentation.
+        forEachChild<T>(cbNode: (node: Node) => T, cbNodeArray?: (nodes: Node[]) => T): T;
     }
 
     export interface Symbol {

Original file line number	Diff line number	Diff line change
`@@ -210,6 +210,10 @@ namespace ts {`
`210`	`210`
`211`	`211`	`return child.kind < SyntaxKind.FirstNode ? child : child.getLastToken(sourceFile);`
`212`	`212`	`}`
	`213`	`+`
	`214`	`+ public forEachChild<T>(cbNode: (node: Node) => T, cbNodeArray?: (nodes: Node[]) => T): T {`
	`215`	`+ return forEachChild(this, cbNode, cbNodeArray);`
	`216`	`+ }`
`213`	`217`	`}`
`214`	`218`
`215`	`219`	`class TokenOrIdentifierObject implements Node {`
`@@ -283,6 +287,10 @@ namespace ts {`
`283`	`287`	`public getLastToken(): Node {`
`284`	`288`	`return undefined;`
`285`	`289`	`}`
	`290`	`+`
	`291`	`+ public forEachChild<T>(): T {`
	`292`	`+ return undefined;`
	`293`	`+ }`
`286`	`294`	`}`
`287`	`295`
`288`	`296`	`class SymbolObject implements Symbol {`
Original file line number	Diff line number	Diff line change
`@@ -18,6 +18,8 @@ namespace ts {`
`18`	`18`	`getText(sourceFile?: SourceFile): string;`
`19`	`19`	`getFirstToken(sourceFile?: SourceFile): Node;`
`20`	`20`	`getLastToken(sourceFile?: SourceFile): Node;`
	`21`	`+ // See ts.forEachChild for documentation.`
	`22`	`+ forEachChild<T>(cbNode: (node: Node) => T, cbNodeArray?: (nodes: Node[]) => T): T;`
`21`	`23`	`}`
`22`	`24`
`23`	`25`	`export interface Symbol {`