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disallow line terminator after async contextual keyword - fixes #1711

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This commit is contained in:
Sebastian McKenzie 2015-06-08 21:25:16 +01:00
parent 98b6effeef
commit 8ba270bde1
3 changed files with 9 additions and 5 deletions
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2
src/expression.js
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@ -292,7 +292,7 @@ pp.parseExprAtom = function(refShorthandDefaultPos) {
//
if (this.options.features["es7.asyncFunctions"]) {
// async functions!
if (id.name === "async") {
if (id.name === "async" && !this.canInsertSemicolon()) {
// arrow functions
if (this.type === tt.parenL) {
let expr = this.parseParenAndDistinguishExpression(start, true, true)

1
src/lookahead.js
View File

@ -9,6 +9,7 @@ var STATE_KEYS = [
"lastTokEnd",
"lineStart",
"startLoc",
"curLine",
"endLoc",
"start",
"pos",

11
src/statement.js
View File

@ -83,10 +83,13 @@ pp.parseStatement = function(declaration, topLevel) {
return starttype === tt._import ? this.parseImport(node) : this.parseExport(node)
case tt.name:
if (this.options.features["es7.asyncFunctions"] && this.value === "async" && this.lookahead().type === tt._function) {
this.next();
this.expect(tt._function);
return this.parseFunction(node, true, false, true);
if (this.options.features["es7.asyncFunctions"] && this.value === "async") {
var lookahead = this.lookahead();
if (lookahead.type === tt._function && !this.canInsertSemicolon.call(lookahead)) {
this.next();
this.expect(tt._function);
return this.parseFunction(node, true, false, true);
}
}
// If the statement does not start with a statement keyword or a