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Issue #2083 - Part 4: Give RegExpShared a finalizer.

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Based on Mozilla bug 1345177.
This commit is contained in:
Job Bautista 2023-01-25 19:39:25 +08:00 • committed by roytam1
commit 9824659d3c
3 changed files with 12 additions and 11 deletions
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3
js/src/gc/Heap.h
View file

@ -340,9 +340,6 @@ class TenuredCell : public Cell
static MOZ_ALWAYS_INLINE void writeBarrierPost(void* cellp, TenuredCell* prior,
TenuredCell* next);
// Default implementation for kinds that don't require finalization.
void finalize(FreeOp* fop) {}
// Default implementation for kinds that don't require fixup.
void fixupAfterMovingGC() {}

14
js/src/vm/RegExpObject.cpp
View file

@ -952,12 +952,6 @@ RegExpShared::RegExpShared(JSAtom* source, RegExpFlag flags)
numNamedCaptures_(0), groupsTemplate_(nullptr)
{}
RegExpShared::~RegExpShared()
{
for (size_t i = 0; i < tables.length(); i++)
js_delete(tables[i]);
}
void
RegExpShared::traceChildren(JSTracer* trc)
{
@ -978,6 +972,14 @@ RegExpShared::discardJitCode()
comp.jitCode = nullptr;
}
void
RegExpShared::finalize(FreeOp* fop)
{
for (size_t i = 0; i < tables.length(); i++)
js_free(tables[i]);
tables.~JitCodeTables();
}
/* static */ bool
RegExpShared::compile(JSContext* cx, MutableHandleRegExpShared re, HandleLinearString input,
CompilationMode mode, ForceByteCodeEnum force)

6
js/src/vm/RegExpObject.h
View file

@ -149,7 +149,8 @@ class RegExpShared : public gc::TenuredCell
}
// Tables referenced by JIT code.
Vector<uint8_t*, 0, SystemAllocPolicy> tables;
using JitCodeTables = Vector<uint8_t*, 0, SystemAllocPolicy>;
JitCodeTables tables;
/* Internal functions. */
RegExpShared(JSAtom* source, RegExpFlag flags);
@ -172,7 +173,7 @@ class RegExpShared : public gc::TenuredCell
}
public:
~RegExpShared();
~RegExpShared() = delete;
// Execute this RegExp on input starting from searchIndex, filling in
// matches if specified and otherwise only determining if there is a match.
@ -222,6 +223,7 @@ class RegExpShared : public gc::TenuredCell
void traceChildren(JSTracer* trc);
void discardJitCode();
void finalize(FreeOp* fop);
static size_t offsetOfSource() {
return offsetof(RegExpShared, source);