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vm: add createCacheForFunction #24069

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vm: add createCacheForFunction #24069

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f3ce13d
vm: add createCacheForFunction
ryzokuken Nov 3, 2018
db807b5
fixup! vm: add createCacheForFunction
ryzokuken Nov 4, 2018
fc46979
vm: remove caching logic from CompileFunction
ryzokuken Nov 4, 2018
ae5534a
fixup! vm: remove caching logic from CompileFunction
ryzokuken Nov 4, 2018
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21 changes: 21 additions & 0 deletions src/node_contextify.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -212,6 +212,7 @@ void ContextifyContext::Init(Environment* env, Local<Object> target) {
env->SetMethod(target, "makeContext", MakeContext);
env->SetMethod(target, "isContext", IsContext);
env->SetMethod(target, "compileFunction", CompileFunction);
env->SetMethod(target, "createCacheForFunction", CreateCacheForFunction);
}


Expand Down Expand Up @@ -1108,6 +1109,26 @@ void ContextifyContext::CompileFunction(
args.GetReturnValue().Set(fun);
}

void ContextifyContext::CreateCacheForFunction(
const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);

// Argument 1: target function
Local<Function> function = args[0].As<Function>();

const std::unique_ptr<ScriptCompiler::CachedData> cache(
ScriptCompiler::CreateCodeCacheForFunction(function));

if (cache == nullptr) {
args.GetReturnValue().SetUndefined();
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} else {
args.GetReturnValue().Set(
Buffer::Copy(
env, reinterpret_cast<const char*>(cache->data), cache->length)
.ToLocalChecked());
}
}


void Initialize(Local<Object> target,
Local<Value> unused,
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2 changes: 2 additions & 0 deletions src/node_contextify.h
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,8 @@ class ContextifyContext {
static void IsContext(const v8::FunctionCallbackInfo<v8::Value>& args);
static void CompileFunction(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void CreateCacheForFunction(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void WeakCallback(
const v8::WeakCallbackInfo<ContextifyContext>& data);
static void PropertyGetterCallback(
Expand Down