Merge pull request microsoft#1464 from Microsoft/void0

CyrusNajmabadi · CyrusNajmabadi · commit 7b528ddd2b8b · 2014-12-12T11:36:47.000-08:00
Properly emit 'void 0' when emitting destructuring assignments.
diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
@@ -2819,9 +2819,8 @@ module ts {
                 function createVoidZero(): Expression {
                     var zero = <LiteralExpression>createNode(SyntaxKind.NumericLiteral);
                     zero.text = "0";
-                    var result = <PrefixUnaryExpression>createNode(SyntaxKind.PrefixUnaryExpression);
-                    result.operator = SyntaxKind.VoidKeyword;
-                    result.operand = zero;
+                    var result = <VoidExpression>createNode(SyntaxKind.VoidExpression);
+                    result.expression = zero;
                     return result;
                 }
 
diff --git a/tests/baselines/reference/declarationsAndAssignments.js b/tests/baselines/reference/declarationsAndAssignments.js
@@ -195,12 +195,12 @@ function f4() {
     var z;
 }
 function f6() {
-    var _a = [1, "hello"], _b = _a[0], x = _b === void0 ? 0 : _b, _c = _a[1], y = _c === void0 ? "" : _c;
+    var _a = [1, "hello"], _b = _a[0], x = _b === void 0 ? 0 : _b, _c = _a[1], y = _c === void 0 ? "" : _c;
     var x;
     var y;
 }
 function f7() {
-    var _a = [1, "hello"], _b = _a[0], x = _b === void0 ? 0 : _b, _c = _a[1], y = _c === void0 ? 1 : _c; // Error, initializer for y must be string
+    var _a = [1, "hello"], _b = _a[0], x = _b === void 0 ? 0 : _b, _c = _a[1], y = _c === void 0 ? 1 : _c; // Error, initializer for y must be string
     var x;
     var y;
 }
@@ -226,7 +226,7 @@ function f11() {
     var b;
 }
 function f12() {
-    var _a = [1, ["hello", { x: 5, y: true }]], a = _a[0], _b = _a[1], _c = _b === void0 ? ["abc", { x: 10, y: false }] : _b, b = _c[0], _d = _c[1], x = _d.x, c = _d.y;
+    var _a = [1, ["hello", { x: 5, y: true }]], a = _a[0], _b = _a[1], _c = _b === void 0 ? ["abc", { x: 10, y: false }] : _b, b = _c[0], _d = _c[1], x = _d.x, c = _d.y;
     var a;
     var b;
     var x;
@@ -237,7 +237,7 @@ function f13() {
     var _b = [[x, y], { x: x, y: y }], a = _b[0], b = _b[1];
 }
 function f14(_a) {
-    var _b = _a[0], a = _b === void0 ? 1 : _b, _c = _a[1], _d = _c[0], b = _d === void0 ? "hello" : _d, _e = _c[1], x = _e.x, _f = _e.y, c = _f === void0 ? false : _f;
+    var _b = _a[0], a = _b === void 0 ? 1 : _b, _c = _a[1], _d = _c[0], b = _d === void 0 ? "hello" : _d, _e = _c[1], x = _e.x, _f = _e.y, c = _f === void 0 ? false : _f;
     var a;
     var b;
     var c;
@@ -260,7 +260,7 @@ function f16() {
     var _a = f15(), a = _a.a, b = _a.b, c = _a.c;
 }
 function f17(_a) {
-    var _b = _a.a, a = _b === void0 ? "" : _b, _c = _a.b, b = _c === void0 ? 0 : _c, _d = _a.c, c = _d === void0 ? false : _d;
+    var _b = _a.a, a = _b === void 0 ? "" : _b, _c = _a.b, b = _c === void 0 ? 0 : _c, _d = _a.c, c = _d === void 0 ? false : _d;
 }
 f17({});
 f17({ a: "hello" });
@@ -274,15 +274,15 @@ function g4() {
     (_b = { b: b, a: a }, a = _b.a, b = _b.b, _b);
     _c = [a, b], aa[0] = _c[0], b = _c[1];
     _d = [b, a], a = _d[0], b = _d[1]; // Error
-    _e = [2, "def"], _f = _e[0], a = _f === void0 ? 1 : _f, _g = _e[1], b = _g === void0 ? "abc" : _g;
+    _e = [2, "def"], _f = _e[0], a = _f === void 0 ? 1 : _f, _g = _e[1], b = _g === void 0 ? "abc" : _g;
     var _a, _b, _c, _d, _e, _f, _g;
 }
 function g5() {
     var a, b;
     _a = [1, 2], a = _a[0], b = _a[1];
     _b = [b, a], a = _b[0], b = _b[1];
     (_c = { b: b, a: a }, a = _c.a, b = _c.b, _c);
-    _d = ([[2, 3]])[0], _e = _d === void0 ? [1, 2] : _d, a = _e[0], b = _e[1];
+    _d = ([[2, 3]])[0], _e = _d === void 0 ? [1, 2] : _d, a = _e[0], b = _e[1];
     var x = (_f = [1, 2], a = _f[0], b = _f[1], _f);
     var _a, _b, _c, _d, _e, _f;
 }
