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Reduce memory usage

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* Store array length property in its member variable not value vector
  - This can reduce one of GC_MALLOC call if there is not value in ArrayObject other than fastmode value
* Prevent memory leak from VMInstance, Context
* Change vector capacity reserve strategy

Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
This commit is contained in:
seonghyun kim 2019-12-19 13:47:58 +09:00 • committed by Hyukwoo Park
commit 98d4ef6942
25 changed files with 502 additions and 367 deletions
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12
src/parser/Script.cpp
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@ -47,10 +47,10 @@ Context* Script::context()
static Optional<Script*> findLoadedModule(Context* context, Optional<Script*> referrer, String* src)
{
const auto& lm = context->loadedModules();
const auto& lm = *context->loadedModules();
for (size_t j = 0; j < lm.size(); j++) {
if (lm[j].m_referrer == referrer && lm[j].m_src->equals(src)) {
return Optional<Script*>(context->loadedModules()[j].m_loadedModule);
return Optional<Script*>(lm[j].m_loadedModule);
}
}
@ -64,8 +64,8 @@ static void registerToLoadedModuleIfNeeds(Context* context, Optional<Script*> re
m.m_loadedModule = module;
m.m_referrer = referrer;
m.m_src = src;
auto& lm = context->loadedModules();
lm.push_back(m);
auto lm = context->loadedModules();
lm->push_back(m);
}
}
@ -312,7 +312,7 @@ Value Script::executeModule(ExecutionState& state, Optional<Script*> referrer)
// http://www.ecma-international.org/ecma-262/6.0/#sec-moduledeclarationinstantiation
// ModuleDeclarationInstantiation( ) Concrete Method
LexicalEnvironment* globalLexicalEnv = new LexicalEnvironment(
new GlobalEnvironmentRecord(state, nullptr, context()->globalObject(), &context()->globalDeclarativeRecord(), &context()->globalDeclarativeStorage()), nullptr);
new GlobalEnvironmentRecord(state, nullptr, context()->globalObject(), context()->globalDeclarativeRecord(), context()->globalDeclarativeStorage()), nullptr);
ExecutionState newState(context(), state.stackLimit());
@ -466,7 +466,7 @@ Value Script::execute(ExecutionState& state, bool isExecuteOnEvalFunction, bool
ExecutionState newState(context(), state.stackLimit());
ExecutionState* codeExecutionState = &newState;
EnvironmentRecord* globalRecord = new GlobalEnvironmentRecord(state, m_topCodeBlock, context()->globalObject(), &context()->globalDeclarativeRecord(), &context()->globalDeclarativeStorage());
EnvironmentRecord* globalRecord = new GlobalEnvironmentRecord(state, m_topCodeBlock, context()->globalObject(), context()->globalDeclarativeRecord(), context()->globalDeclarativeStorage());
LexicalEnvironment* globalLexicalEnvironment = new LexicalEnvironment(globalRecord, nullptr);
newState.setLexicalEnvironment(globalLexicalEnvironment, m_topCodeBlock->isStrict());