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Code Issues Projects Releases Packages Wiki Activity

1. reduce size of ByteCodeBlock, CodeBlock classes

Browse source 
2. optimize function calling performance
 - change local variable binding order (this, function name first)
 - revise opcode table init method
3. remove OpcodeTable::m_reverseTable
4. use shared thrower JSGetterSetter instance for arguments, function object
5. revise Function.prototype.toString for to print function's source

Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
This commit is contained in:
seonghyun kim 2017-03-15 15:05:19 +09:00
commit b1cc608191
29 changed files with 378 additions and 359 deletions
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9
src/parser/ScriptParser.cpp
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@ -42,7 +42,7 @@ CodeBlock* ScriptParser::generateCodeBlockTreeFromASTWalker(Context* ctx, String
} else {
codeBlock = new CodeBlock(ctx, script, StringView(source, scopeCtx->m_locStart.index, scopeCtx->m_locEnd.index),
scopeCtx->m_locStart,
scopeCtx->m_isStrict, scopeCtx->m_nodeStartIndex,
scopeCtx->m_isStrict,
scopeCtx->m_functionName, scopeCtx->m_parameters, scopeCtx->m_names, parentCodeBlock,
(CodeBlock::CodeBlockInitFlag)((scopeCtx->m_hasEval ? CodeBlock::CodeBlockHasEval : 0)
| (scopeCtx->m_hasWith ? CodeBlock::CodeBlockHasWith : 0)
@ -74,7 +74,7 @@ CodeBlock* ScriptParser::generateCodeBlockTreeFromASTWalker(Context* ctx, String
for (size_t i = 0; i < scopeCtx->m_usingNames.size(); i++) {
AtomicString uname = scopeCtx->m_usingNames[i];
if (uname == arguments) {
AtomicStringVector& pv = codeBlock->m_parameterNames;
AtomicStringTightVector& pv = codeBlock->m_parameterNames;
bool hasArgumentsParameter = false;
for (size_t i = 0; i < pv.size(); i++) {
if (pv[i] == arguments) {
@ -90,8 +90,6 @@ CodeBlock* ScriptParser::generateCodeBlockTreeFromASTWalker(Context* ctx, String
info.m_name = arguments;
info.m_needToAllocateOnStack = true;
codeBlock->m_identifierInfos.pushBack(info);
} else {
codeBlock->m_hasArgumentsBinding = true;
}
CodeBlock* b = codeBlock;
@ -128,8 +126,9 @@ CodeBlock* ScriptParser::generateCodeBlockTreeFromASTWalker(Context* ctx, String
}
}
codeBlock->m_childBlocks.resizeWithUninitializedValues(scopeCtx->m_childScopes.size());
for (size_t i = 0; i < scopeCtx->m_childScopes.size(); i++) {
codeBlock->appendChildBlock(generateCodeBlockTreeFromASTWalker(ctx, source, script, scopeCtx->m_childScopes[i], codeBlock));
codeBlock->m_childBlocks[i] = generateCodeBlockTreeFromASTWalker(ctx, source, script, scopeCtx->m_childScopes[i], codeBlock);
}
#ifdef NDEBUG