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Fix for-await-of emit in async function

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This commit is contained in:
Ron Buckton
2017-02-17 18:01:13 -08:00
parent ef25b25c1f
commit 7d77c2bc18
11 changed files with 96 additions and 18 deletions
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22
src/compiler/transformers/esnext.ts
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@@ -357,10 +357,12 @@ namespace ts {
const values = createAsyncValuesHelper(context, expression, /*location*/ node.expression);
const next = createYield(
/*asteriskToken*/ undefined,
createArrayLiteral([
createLiteral("await"),
createCall(createPropertyAccess(iterator, "next" ), /*typeArguments*/ undefined, [])
])
enclosingFunctionFlags & FunctionFlags.Generator
? createArrayLiteral([
createLiteral("await"),
createCall(createPropertyAccess(iterator, "next" ), /*typeArguments*/ undefined, [])
])
: createCall(createPropertyAccess(iterator, "next" ), /*typeArguments*/ undefined, [])
);
hoistVariableDeclaration(errorRecord);
@@ -431,10 +433,12 @@ namespace ts {
createStatement(
createYield(
/*asteriskToken*/ undefined,
createArrayLiteral([
createLiteral("await"),
createFunctionCall(returnMethod, iterator, [])
])
enclosingFunctionFlags & FunctionFlags.Generator
? createArrayLiteral([
createLiteral("await"),
createFunctionCall(returnMethod, iterator, [])
])
: createFunctionCall(returnMethod, iterator, [])
)
)
),
@@ -872,6 +876,7 @@ namespace ts {
scoped: false,
text: `
var __asyncGenerator = (this && this.__asyncGenerator) || function (thisArg, _arguments, generator) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var g = generator.apply(thisArg, _arguments || []), q = [], c, i;
return i = { next: verb("next"), "throw": verb("throw"), "return": verb("return") }, i[Symbol.asyncIterator] = function () { return this; }, i;
function verb(n) { return function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]), next(); }); }; }
@@ -932,6 +937,7 @@ namespace ts {
scoped: false,
text: `
var __asyncValues = (this && this.__asyncIterator) || function (o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator];
return m ? m.call(o) : typeof __values === "function" ? __values(o) : o[Symbol.iterator]();
};