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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jsscriptinlines_h
#define jsscriptinlines_h
#include "jsscript.h"
#include "jit/BaselineJIT.h"
#include "jit/IonAnalysis.h"
#include "vm/EnvironmentObject.h"
#include "wasm/AsmJS.h"
#include "jscompartmentinlines.h"
#include "vm/Shape-inl.h"
namespace js {
ScriptCounts::ScriptCounts()
: pcCounts_(),
throwCounts_(),
ionCounts_(nullptr)
{
}
ScriptCounts::ScriptCounts(PCCountsVector&& jumpTargets)
: pcCounts_(Move(jumpTargets)),
throwCounts_(),
ionCounts_(nullptr)
{
}
ScriptCounts::ScriptCounts(ScriptCounts&& src)
: pcCounts_(Move(src.pcCounts_)),
throwCounts_(Move(src.throwCounts_)),
ionCounts_(Move(src.ionCounts_))
{
src.ionCounts_ = nullptr;
}
ScriptCounts&
ScriptCounts::operator=(ScriptCounts&& src)
{
pcCounts_ = Move(src.pcCounts_);
throwCounts_ = Move(src.throwCounts_);
ionCounts_ = Move(src.ionCounts_);
src.ionCounts_ = nullptr;
return *this;
}
ScriptCounts::~ScriptCounts()
{
js_delete(ionCounts_);
}
ScriptAndCounts::ScriptAndCounts(JSScript* script)
: script(script),
scriptCounts()
{
script->releaseScriptCounts(&scriptCounts);
}
ScriptAndCounts::ScriptAndCounts(ScriptAndCounts&& sac)
: script(Move(sac.script)),
scriptCounts(Move(sac.scriptCounts))
{
}
void
SetFrameArgumentsObject(JSContext* cx, AbstractFramePtr frame,
HandleScript script, JSObject* argsobj);
/* static */ inline JSFunction*
LazyScript::functionDelazifying(JSContext* cx, Handle<LazyScript*> script)
{
RootedFunction fun(cx, script->function_);
if (script->function_ && !JSFunction::getOrCreateScript(cx, fun))
return nullptr;
return script->function_;
}
} // namespace js
inline JSFunction*
JSScript::functionDelazifying() const
{
JSFunction* fun = function();
if (fun && fun->isInterpretedLazy()) {
fun->setUnlazifiedScript(const_cast<JSScript*>(this));
// If this script has a LazyScript, make sure the LazyScript has a
// reference to the script when delazifying its canonical function.
if (lazyScript && !lazyScript->maybeScript())
lazyScript->initScript(const_cast<JSScript*>(this));
}
return fun;
}
inline void
JSScript::ensureNonLazyCanonicalFunction()
{
// Infallibly delazify the canonical script.
JSFunction* fun = function();
if (fun && fun->isInterpretedLazy())
functionDelazifying();
}
inline JSFunction*
JSScript::getFunction(size_t index)
{
JSFunction* fun = &getObject(index)->as<JSFunction>();
MOZ_ASSERT_IF(fun->isNative(), IsAsmJSModuleNative(fun->native()));
return fun;
}
inline js::RegExpObject*
JSScript::getRegExp(size_t index)
{
return &getObject(index)->as<js::RegExpObject>();
}
inline js::RegExpObject*
JSScript::getRegExp(jsbytecode* pc)
{
return &getObject(pc)->as<js::RegExpObject>();
}
inline js::GlobalObject&
JSScript::global() const
{
/*
* A JSScript always marks its compartment's global (via bindings) so we
* can assert that maybeGlobal is non-null here.
*/
return *compartment()->maybeGlobal();
}
inline js::LexicalScope*
JSScript::maybeNamedLambdaScope() const
{
// Dynamically created Functions via the 'new Function' are considered
// named lambdas but they do not have the named lambda scope of
// textually-created named lambdas.
js::Scope* scope = outermostScope();
if (scope->kind() == js::ScopeKind::NamedLambda ||
scope->kind() == js::ScopeKind::StrictNamedLambda)
{
MOZ_ASSERT_IF(!strict(), scope->kind() == js::ScopeKind::NamedLambda);
MOZ_ASSERT_IF(strict(), scope->kind() == js::ScopeKind::StrictNamedLambda);
return &scope->as<js::LexicalScope>();
}
return nullptr;
}
inline js::Shape*
JSScript::initialEnvironmentShape() const
{
js::Scope* scope = bodyScope();
if (scope->is<js::FunctionScope>()) {
if (js::Shape* envShape = scope->environmentShape())
return envShape;
if (js::Scope* namedLambdaScope = maybeNamedLambdaScope())
return namedLambdaScope->environmentShape();
} else if (scope->is<js::EvalScope>()) {
return scope->environmentShape();
}
return nullptr;
}
inline JSPrincipals*
JSScript::principals()
{
return compartment()->principals();
}
inline void
JSScript::setBaselineScript(JSRuntime* maybeRuntime, js::jit::BaselineScript* baselineScript)
{
if (hasBaselineScript())
js::jit::BaselineScript::writeBarrierPre(zone(), baseline);
MOZ_ASSERT(!hasIonScript());
baseline = baselineScript;
resetWarmUpResetCounter();
updateBaselineOrIonRaw(maybeRuntime);
}
inline bool
JSScript::ensureHasAnalyzedArgsUsage(JSContext* cx)
{
if (analyzedArgsUsage())
return true;
return js::jit::AnalyzeArgumentsUsage(cx, this);
}
inline bool
JSScript::isDebuggee() const
{
return compartment_->debuggerObservesAllExecution() || hasDebugScript_;
}
#endif /* jsscriptinlines_h */
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