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Merge pull request #1464 from Microsoft/void0

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Properly emit 'void 0' when emitting destructuring assignments.
This commit is contained in:
CyrusNajmabadi 2014-12-12 11:36:47 -08:00
commit 7b528ddd2b
2 changed files with 9 additions and 10 deletions
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5
src/compiler/emitter.ts
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@ -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;
}

14
tests/baselines/reference/declarationsAndAssignments.js
View file

@ -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" });
@ -274,7 +274,7 @@ 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() {
@ -282,7 +282,7 @@ function g5() {
_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;
}