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Issue #2173 - Fix return value of MUST_MATCH_TOKEN* macros in Parser methods which returns bool

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Based-on: m-c 1479659/0
This commit is contained in:
Martok 2023-03-22 23:07:39 +01:00 • committed by roytam1
commit c02e109b79
1 changed files with 31 additions and 18 deletions
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49
js/src/frontend/Parser.cpp
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@ -67,31 +67,43 @@ using UsedNamePtr = UsedNameTracker::UsedNameMap::Ptr;
// Read a token. Report an error and return null() if that token doesn't match
// to the condition. Do not use MUST_MATCH_TOKEN_INTERNAL directly.
#define MUST_MATCH_TOKEN_INTERNAL(cond, modifier, errorReport) \
#define MUST_MATCH_TOKEN_INTERNAL(cond, modifier, errorReport, failureValue) \
JS_BEGIN_MACRO \
TokenKind token; \
if (!tokenStream.getToken(&token, modifier)) \
return null(); \
return failureValue; \
if (!(cond)) { \
errorReport; \
return null(); \
return failureValue; \
} \
JS_END_MACRO
#define MUST_MATCH_TOKEN_MOD_OR(tt, modifier, errorNumber, failureValue) \
MUST_MATCH_TOKEN_INTERNAL(token == tt, modifier, error(errorNumber), failureValue)
#define MUST_MATCH_TOKEN_MOD(tt, modifier, errorNumber) \
MUST_MATCH_TOKEN_INTERNAL(token == tt, modifier, error(errorNumber))
MUST_MATCH_TOKEN_MOD_OR(tt, modifier, errorNumber, null())
#define MUST_MATCH_TOKEN_OR(tt, errorNumber, failureValue) \
MUST_MATCH_TOKEN_MOD_OR(tt, TokenStream::None, errorNumber, failureValue)
#define MUST_MATCH_TOKEN(tt, errorNumber) \
MUST_MATCH_TOKEN_MOD(tt, TokenStream::None, errorNumber)
MUST_MATCH_TOKEN_OR(tt, errorNumber, null())
#define MUST_MATCH_TOKEN_FUNC_MOD(func, modifier, errorNumber) \
MUST_MATCH_TOKEN_INTERNAL((func)(token), modifier, error(errorNumber))
#define MUST_MATCH_TOKEN_FUNC_MOD_OR(func, modifier, errorNumber, failureValue) \
MUST_MATCH_TOKEN_INTERNAL((func)(token), modifier, error(errorNumber), failureValue)
#define MUST_MATCH_TOKEN_FUNC_OR(func, errorNumber, failureValue) \
MUST_MATCH_TOKEN_FUNC_MOD_OR(func, TokenStream::None, errorNumber, failureValue)
#define MUST_MATCH_TOKEN_FUNC(func, errorNumber) \
MUST_MATCH_TOKEN_FUNC_MOD(func, TokenStream::None, errorNumber)
MUST_MATCH_TOKEN_FUNC_OR(func, errorNumber, null())
#define MUST_MATCH_TOKEN_MOD_WITH_REPORT_OR(tt, modifier, errorReport, failureValue) \
MUST_MATCH_TOKEN_INTERNAL(token == tt, modifier, errorReport, failureValue)
#define MUST_MATCH_TOKEN_MOD_WITH_REPORT(tt, modifier, errorReport) \
MUST_MATCH_TOKEN_INTERNAL(token == tt, modifier, errorReport)
MUST_MATCH_TOKEN_MOD_WITH_REPORT_OR(tt, modifier, errorReport, null())
template <class T, class U>
static inline void
@ -3152,7 +3164,7 @@ Parser<ParseHandler>::functionArguments(YieldHandling yieldHandling, FunctionSyn
if (!hasRest) {
if (!tokenStream.peekToken(&tt, TokenStream::Operand))
return null();
return false;
if (tt == TOK_RP) {
tokenStream.addModifierException(TokenStream::NoneIsOperand);
break;
@ -3726,9 +3738,10 @@ Parser<ParseHandler>::functionFormalParametersAndBody(InHandling inHandling,
}
if (bodyType == StatementListBody) {
MUST_MATCH_TOKEN_MOD_WITH_REPORT(TOK_RC, TokenStream::Operand,
reportMissingClosing(JSMSG_CURLY_AFTER_BODY,
JSMSG_CURLY_OPENED, openedPos));
MUST_MATCH_TOKEN_MOD_WITH_REPORT_OR(TOK_RC, TokenStream::Operand,
reportMissingClosing(JSMSG_CURLY_AFTER_BODY,
JSMSG_CURLY_OPENED, openedPos),
false);
funbox->setEnd(pos().end);
} else {
#if !JS_HAS_EXPR_CLOSURES
@ -4971,7 +4984,7 @@ Parser<FullParseHandler>::namedImportsOrNamespaceImport(TokenKind tt, Node impor
bool matched;
if (!tokenStream.matchToken(&matched, TOK_AS))
return null();
return false;
if (matched) {
TokenKind afterAs;
@ -5028,9 +5041,9 @@ Parser<FullParseHandler>::namedImportsOrNamespaceImport(TokenKind tt, Node impor
} else {
MOZ_ASSERT(tt == TOK_MUL);
MUST_MATCH_TOKEN(TOK_AS, JSMSG_AS_AFTER_IMPORT_STAR);
MUST_MATCH_TOKEN_OR(TOK_AS, JSMSG_AS_AFTER_IMPORT_STAR, false);
MUST_MATCH_TOKEN_FUNC(TokenKindIsPossibleIdentifierName, JSMSG_NO_BINDING_NAME);
MUST_MATCH_TOKEN_FUNC_OR(TokenKindIsPossibleIdentifierName, JSMSG_NO_BINDING_NAME, false);
Node importName = newName(context->names().star);
if (!importName)
@ -6075,7 +6088,7 @@ Parser<ParseHandler>::forHeadStart(YieldHandling yieldHandling,
TokenKind tt;
if (!tokenStream.peekToken(&tt, TokenStream::Operand))
return null();
return false;
// Super-duper easy case: |for (;| is a C-style for-loop with no init
// component.
@ -6128,7 +6141,7 @@ Parser<ParseHandler>::forHeadStart(YieldHandling yieldHandling,
if (parsingLexicalDeclaration) {
forLoopLexicalScope.emplace(this);
if (!forLoopLexicalScope->init(pc))
return null();
return false;
// Push a temporary ForLoopLexicalHead Statement that allows for
// lexical declarations, as they are usually allowed only in braced