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Issue #1918 - m-c 1358246: Report syntax error for stray "async" keyword in object literal property name.

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This commit is contained in:
Martok 2022-06-17 20:35:08 +02:00 • committed by roytam1
commit 5e1b813aac
2 changed files with 39 additions and 18 deletions
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36
js/src/frontend/Parser.cpp
View file

@ -9771,6 +9771,21 @@ Parser<ParseHandler>::propertyName(YieldHandling yieldHandling,
return null();
break;
case TOK_STRING: {
propAtom.set(tokenStream.currentToken().atom());
uint32_t index;
if (propAtom->isIndex(&index)) {
propName = handler.newNumber(index, NoDecimal, pos());
if (!propName)
return null();
break;
}
propName = stringLiteral();
if (!propName)
return null();
break;
}
case TOK_LB:
propName = computedPropertyName(yieldHandling, maybeDecl, propList);
if (!propName)
@ -9784,7 +9799,7 @@ Parser<ParseHandler>::propertyName(YieldHandling yieldHandling,
}
propAtom.set(tokenStream.currentName());
// Do not look for accessor syntax on generators
// Do not look for accessor syntax on generator or async methods.
if (isGenerator || isAsync || !(ltok == TOK_GET || ltok == TOK_SET)) {
propName = handler.newObjectLiteralPropertyName(propAtom, pos());
if (!propName)
@ -9839,21 +9854,6 @@ Parser<ParseHandler>::propertyName(YieldHandling yieldHandling,
return null();
break;
}
case TOK_STRING: {
propAtom.set(tokenStream.currentToken().atom());
uint32_t index;
if (propAtom->isIndex(&index)) {
propName = handler.newNumber(index, NoDecimal, pos());
if (!propName)
return null();
break;
}
propName = stringLiteral();
if (!propName)
return null();
break;
}
}
TokenKind tt;
@ -9861,7 +9861,7 @@ Parser<ParseHandler>::propertyName(YieldHandling yieldHandling,
return null();
if (tt == TOK_COLON) {
if (isGenerator) {
if (isGenerator || isAsync) {
error(JSMSG_BAD_PROP_ID);
return null();
}
@ -9872,7 +9872,7 @@ Parser<ParseHandler>::propertyName(YieldHandling yieldHandling,
if (TokenKindIsPossibleIdentifierName(ltok) &&
(tt == TOK_COMMA || tt == TOK_RC || tt == TOK_ASSIGN))
{
if (isGenerator) {
if (isGenerator || isAsync) {
error(JSMSG_BAD_PROP_ID);
return null();
}

21
js/src/tests/ecma_2017/AsyncFunctions/async-property-name-error.js Normal file
View file

@ -0,0 +1,21 @@
function assertSyntaxError(code) {
assertThrowsInstanceOf(() => { Function(code); }, SyntaxError, "Function:" + code);
assertThrowsInstanceOf(() => { eval(code); }, SyntaxError, "eval:" + code);
var ieval = eval;
assertThrowsInstanceOf(() => { ieval(code); }, SyntaxError, "indirect eval:" + code);
}
assertSyntaxError(`({async async: 0})`);
assertSyntaxError(`({async async})`);
assertSyntaxError(`({async async, })`);
assertSyntaxError(`({async async = 0} = {})`);
for (let decl of ["var", "let", "const"]) {
assertSyntaxError(`${decl} {async async: a} = {}`);
assertSyntaxError(`${decl} {async async} = {}`);
assertSyntaxError(`${decl} {async async, } = {}`);
assertSyntaxError(`${decl} {async async = 0} = {}`);
}
if (typeof reportCompare === "function")
reportCompare(true, true);