From 4c4f8091e620a35d6d20a5b0ccc6c118e9b8e5e5 Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Sat, 6 Apr 2019 06:54:09 +0200 Subject: Remove Parser::reportBadReturn Report simpler errors that don't use the offset of a node as location. --- js/src/frontend/Parser.cpp | 23 +++-------------------- js/src/frontend/Parser.h | 2 -- js/src/js.msg | 4 ++-- js/src/tests/js1_7/geniter/regress-352197.js | 2 +- js/src/tests/js1_8/genexps/regress-683738.js | 8 ++++---- testing/xpcshell/selftest.py | 2 +- 6 files changed, 11 insertions(+), 30 deletions(-) diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp index b494cc966..0099ed19d 100644 --- a/js/src/frontend/Parser.cpp +++ b/js/src/frontend/Parser.cpp @@ -909,21 +909,6 @@ Parser::parse() return pn; } -template -bool -Parser::reportBadReturn(Node pn, ParseReportKind kind, - unsigned errnum, unsigned anonerrnum) -{ - JSAutoByteString name; - if (JSAtom* atom = pc->functionBox()->function()->explicitName()) { - if (!AtomToPrintableString(context, atom, &name)) - return false; - } else { - errnum = anonerrnum; - } - return reportWithNode(kind, pc->sc()->strict(), pn, errnum, name.ptr()); -} - /* * Strict mode forbids introducing new definitions for 'eval', 'arguments', or * for any strict mode reserved keyword. @@ -6023,10 +6008,9 @@ Parser::returnStatement(YieldHandling yieldHandling) if (!pn) return null(); + /* Disallow "return v;" in legacy generators. */ if (pc->isLegacyGenerator() && exprNode) { - /* Disallow "return v;" in legacy generators. */ - reportBadReturn(pn, ParseError, JSMSG_BAD_GENERATOR_RETURN, - JSMSG_BAD_ANON_GENERATOR_RETURN); + errorAt(begin, JSMSG_BAD_GENERATOR_RETURN); return null(); } @@ -6141,8 +6125,7 @@ Parser::yieldExpression(InHandling inHandling) ) { /* As in Python (see PEP-255), disallow return v; in generators. */ - reportBadReturn(null(), ParseError, JSMSG_BAD_GENERATOR_RETURN, - JSMSG_BAD_ANON_GENERATOR_RETURN); + errorAt(begin, JSMSG_BAD_GENERATOR_RETURN); return null(); } diff --git a/js/src/frontend/Parser.h b/js/src/frontend/Parser.h index efbaebafd..27a10458b 100644 --- a/js/src/frontend/Parser.h +++ b/js/src/frontend/Parser.h @@ -1445,8 +1445,6 @@ class Parser final : private JS::AutoGCRooter, public StrictModeGetter static Node null() { return ParseHandler::null(); } - bool reportBadReturn(Node pn, ParseReportKind kind, unsigned errnum, unsigned anonerrnum); - JSAtom* prefixAccessorName(PropertyType propType, HandleAtom propAtom); TokenPos pos() const { return tokenStream.currentToken().pos; } diff --git a/js/src/js.msg b/js/src/js.msg index a276dab94..42a48c3a5 100644 --- a/js/src/js.msg +++ b/js/src/js.msg @@ -186,7 +186,6 @@ MSG_DEF(JSMSG_AS_AFTER_IMPORT_STAR, 0, JSEXN_SYNTAXERR, "missing keyword 'as' MSG_DEF(JSMSG_AS_AFTER_RESERVED_WORD, 1, JSEXN_SYNTAXERR, "missing keyword 'as' after reserved word '{0}'") MSG_DEF(JSMSG_ASYNC_GENERATOR, 0, JSEXN_SYNTAXERR, "generator function or method can't be async") MSG_DEF(JSMSG_AWAIT_IN_DEFAULT, 0, JSEXN_SYNTAXERR, "await can't be used in default expression") -MSG_DEF(JSMSG_BAD_ANON_GENERATOR_RETURN, 0, JSEXN_TYPEERR, "anonymous generator function returns a value") MSG_DEF(JSMSG_BAD_ARROW_ARGS, 0, JSEXN_SYNTAXERR, "invalid arrow-function arguments (parentheses around the arrow-function may help)") MSG_DEF(JSMSG_BAD_BINDING, 1, JSEXN_SYNTAXERR, "redefining {0} is deprecated") MSG_DEF(JSMSG_BAD_CONST_DECL, 0, JSEXN_SYNTAXERR, "missing = in const declaration") @@ -200,7 +199,8 @@ MSG_DEF(JSMSG_BAD_FOR_EACH_LOOP, 0, JSEXN_SYNTAXERR, "invalid for each loo MSG_DEF(JSMSG_BAD_FOR_LEFTSIDE, 0, JSEXN_SYNTAXERR, "invalid for-in/of left-hand side") MSG_DEF(JSMSG_LEXICAL_DECL_DEFINES_LET,0, JSEXN_SYNTAXERR, "a lexical declaration can't define a 'let' binding") MSG_DEF(JSMSG_LET_STARTING_FOROF_LHS, 0, JSEXN_SYNTAXERR, "an expression X in 'for (X of Y)' must not start with 'let'") -MSG_DEF(JSMSG_BAD_GENERATOR_RETURN, 1, JSEXN_TYPEERR, "generator function {0} returns a value") +MSG_DEF(JSMSG_BAD_FUNCTION_YIELD, 0, JSEXN_TYPEERR, "can't use 'yield' in a function that can return a value") +MSG_DEF(JSMSG_BAD_GENERATOR_RETURN, 0, JSEXN_TYPEERR, "generator function can't return a value") MSG_DEF(JSMSG_BAD_GENEXP_BODY, 1, JSEXN_SYNTAXERR, "illegal use of {0} in generator expression") MSG_DEF(JSMSG_BAD_INCOP_OPERAND, 0, JSEXN_REFERENCEERR, "invalid increment/decrement operand") MSG_DEF(JSMSG_BAD_METHOD_DEF, 0, JSEXN_SYNTAXERR, "bad method definition") diff --git a/js/src/tests/js1_7/geniter/regress-352197.js b/js/src/tests/js1_7/geniter/regress-352197.js index 7982e12ee..495717af7 100644 --- a/js/src/tests/js1_7/geniter/regress-352197.js +++ b/js/src/tests/js1_7/geniter/regress-352197.js @@ -20,7 +20,7 @@ function test() printBugNumber(BUGNUMBER); printStatus (summary); - expect = /TypeError: anonymous generator function returns a value/; + expect = /TypeError: can't use 'yield' in a function that can return a value/; try { var gen = eval('(function() { { return 5; } yield 3; })'); diff --git a/js/src/tests/js1_8/genexps/regress-683738.js b/js/src/tests/js1_8/genexps/regress-683738.js index de563645d..b0309a90e 100644 --- a/js/src/tests/js1_8/genexps/regress-683738.js +++ b/js/src/tests/js1_8/genexps/regress-683738.js @@ -20,7 +20,7 @@ function test() printBugNumber(BUGNUMBER); printStatus (summary); - expect = "generator function foo returns a value"; + expect = "can't use 'yield' in a function that can return a value"; try { actual = 'No Error'; @@ -32,7 +32,7 @@ function test() } reportCompare(expect, actual, summary + ": 1"); - expect = "generator function foo returns a value"; + expect = "generator function can't return a value"; try { actual = 'No Error'; @@ -44,7 +44,7 @@ function test() } reportCompare(expect, actual, summary + ": 2"); - expect = "generator function foo returns a value"; + expect = "can't use 'yield' in a function that can return a value"; try { actual = 'No Error'; @@ -56,7 +56,7 @@ function test() } reportCompare(expect, actual, summary + ": 3"); - expect = "generator function foo returns a value"; + expect = "generator function can't return a value"; try { actual = 'No Error'; diff --git a/testing/xpcshell/selftest.py b/testing/xpcshell/selftest.py index 856f505fc..071ab5eda 100755 --- a/testing/xpcshell/selftest.py +++ b/testing/xpcshell/selftest.py @@ -1162,7 +1162,7 @@ add_test({ self.assertTestResult(False) self.assertInLog(TEST_FAIL_STRING) - self.assertInLog("TypeError: generator function run_test returns a value at") + self.assertInLog("TypeError: generator function can't return a value at") self.assertInLog("test_error.js:4") self.assertNotInLog(TEST_PASS_STRING) -- cgit v1.2.3