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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:27 +0000
commit40a355a42d4a9444dc753c04c6608dade2f06a23 (patch)
tree871fc667d2de662f171103ce5ec067014ef85e61 /js/src/frontend/ParseContext.h
parentAdding upstream version 124.0.1. (diff)
downloadfirefox-40a355a42d4a9444dc753c04c6608dade2f06a23.tar.xz
firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.zip
Adding upstream version 125.0.1.upstream/125.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/frontend/ParseContext.h')
-rw-r--r--js/src/frontend/ParseContext.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/frontend/ParseContext.h b/js/src/frontend/ParseContext.h
index 8124073bf9..796b776d85 100644
--- a/js/src/frontend/ParseContext.h
+++ b/js/src/frontend/ParseContext.h
@@ -661,8 +661,12 @@ class ParseContext : public Nestable<ParseContext> {
bool hasUsedName(const UsedNameTracker& usedNames,
TaggedParserAtomIndex name);
+ bool hasClosedOverName(const UsedNameTracker& usedNames,
+ TaggedParserAtomIndex name);
bool hasUsedFunctionSpecialName(const UsedNameTracker& usedNames,
TaggedParserAtomIndex name);
+ bool hasClosedOverFunctionSpecialName(const UsedNameTracker& usedNames,
+ TaggedParserAtomIndex name);
bool declareFunctionThis(const UsedNameTracker& usedNames,
bool canSkipLazyClosedOverBindings);
@@ -673,6 +677,13 @@ class ParseContext : public Nestable<ParseContext> {
bool declareDotGeneratorName();
bool declareTopLevelDotGeneratorName();
+ // Used to determine if we have non-length uses of the arguments binding.
+ // This works by incrementing this counter each time we encounter the
+ // arguments name, and decrementing each time it is combined into
+ // arguments.length; as a result, if this is non-zero at the end of parsing,
+ // we have identified a non-length use of the arguments binding.
+ size_t numberOfArgumentsNames = 0;
+
private:
[[nodiscard]] bool isVarRedeclaredInInnermostScope(
TaggedParserAtomIndex name, ParserBase* parser, DeclarationKind kind,