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LibJS: Rename VM::current_scope() => current_environment_record()

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And rename some related functions that wrapped this as well.
This commit is contained in:
Andreas Kling 2021-06-21 23:47:44 +02:00
parent d407f247b7
commit 08510a0c80
8 changed files with 28 additions and 27 deletions
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2
Userland/Libraries/LibJS/Runtime/GeneratorFunctionConstructor.cpp
View file

@ -62,7 +62,7 @@ Value GeneratorFunctionConstructor::construct(Function& new_target)
block.dump(executable);
}
return ScriptFunction::create(global_object(), function->name(), function->body(), function->parameters(), function->function_length(), vm().current_scope(), FunctionKind::Generator, function->is_strict_mode(), false);
return ScriptFunction::create(global_object(), function->name(), function->body(), function->parameters(), function->function_length(), vm().current_environment_record(), FunctionKind::Generator, function->is_strict_mode(), false);
}
}

2
Userland/Libraries/LibJS/Runtime/ScriptFunction.cpp
View file

@ -166,7 +166,7 @@ Value ScriptFunction::execute_function_body()
if (i >= call_frame_args.size())
call_frame_args.resize(i + 1);
call_frame_args[i] = argument_value;
vm.assign(param, argument_value, global_object(), true, vm.current_scope());
vm.assign(param, argument_value, global_object(), true, vm.current_environment_record());
});
if (vm.exception())

20
Userland/Libraries/LibJS/Runtime/VM.cpp
View file

@ -135,7 +135,7 @@ void VM::set_variable(const FlyString& name, Value value, GlobalObject& global_o
{
Optional<Variable> possible_match;
if (!specific_scope && m_call_stack.size()) {
for (auto* environment_record = current_scope(); environment_record; environment_record = environment_record->outer_environment()) {
for (auto* environment_record = current_environment_record(); environment_record; environment_record = environment_record->outer_environment()) {
possible_match = environment_record->get_from_environment_record(name);
if (possible_match.has_value()) {
specific_scope = environment_record;
@ -167,7 +167,7 @@ bool VM::delete_variable(FlyString const& name)
EnvironmentRecord* specific_scope = nullptr;
Optional<Variable> possible_match;
if (!m_call_stack.is_empty()) {
for (auto* environment_record = current_scope(); environment_record; environment_record = environment_record->outer_environment()) {
for (auto* environment_record = current_environment_record(); environment_record; environment_record = environment_record->outer_environment()) {
possible_match = environment_record->get_from_environment_record(name);
if (possible_match.has_value()) {
specific_scope = environment_record;
@ -363,7 +363,7 @@ Value VM::get_variable(const FlyString& name, GlobalObject& global_object)
// a function parameter, or by a local var declaration, we use that.
// Otherwise, we return a lazily constructed Array with all the argument values.
// FIXME: Do something much more spec-compliant.
auto possible_match = current_scope()->get_from_environment_record(name);
auto possible_match = current_environment_record()->get_from_environment_record(name);
if (possible_match.has_value())
return possible_match.value().value;
if (!call_frame().arguments_object) {
@ -376,7 +376,7 @@ Value VM::get_variable(const FlyString& name, GlobalObject& global_object)
return call_frame().arguments_object;
}
for (auto* environment_record = current_scope(); environment_record; environment_record = environment_record->outer_environment()) {
for (auto* environment_record = current_environment_record(); environment_record; environment_record = environment_record->outer_environment()) {
auto possible_match = environment_record->get_from_environment_record(name);
if (exception())
return {};
@ -393,7 +393,7 @@ Value VM::get_variable(const FlyString& name, GlobalObject& global_object)
Reference VM::get_reference(const FlyString& name)
{
if (m_call_stack.size()) {
for (auto* environment_record = current_scope(); environment_record; environment_record = environment_record->outer_environment()) {
for (auto* environment_record = current_environment_record(); environment_record; environment_record = environment_record->outer_environment()) {
if (is<GlobalObject>(environment_record))
break;
auto possible_match = environment_record->get_from_environment_record(name);
@ -460,8 +460,8 @@ Value VM::construct(Function& function, Function& new_target, Optional<MarkedVal
// set the prototype on objects created by constructors that return an object (i.e. NativeFunction subclasses).
if (function.constructor_kind() == Function::ConstructorKind::Base && new_target.constructor_kind() == Function::ConstructorKind::Derived && result.is_object()) {
if (environment) {
VERIFY(is<DeclarativeEnvironmentRecord>(current_scope()));
static_cast<DeclarativeEnvironmentRecord*>(current_scope())->replace_this_binding(result);
VERIFY(is<DeclarativeEnvironmentRecord>(current_environment_record()));
static_cast<DeclarativeEnvironmentRecord*>(current_environment_record())->replace_this_binding(result);
}
auto prototype = new_target.get(names.prototype);
if (exception())
@ -508,7 +508,7 @@ Value VM::resolve_this_binding(GlobalObject& global_object) const
const EnvironmentRecord* VM::find_this_scope() const
{
// We will always return because the Global environment will always be reached, which has a |this| binding.
for (auto* environment_record = current_scope(); environment_record; environment_record = environment_record->outer_environment()) {
for (auto* environment_record = current_environment_record(); environment_record; environment_record = environment_record->outer_environment()) {
if (environment_record->has_this_binding())
return environment_record;
}
@ -622,9 +622,9 @@ void VM::dump_backtrace() const
dbgln("-> {}", m_call_stack[i]->function_name);
}
void VM::dump_scope_chain() const
void VM::dump_environment_record_chain() const
{
for (auto* environment_record = current_scope(); environment_record; environment_record = environment_record->outer_environment()) {
for (auto* environment_record = current_environment_record(); environment_record; environment_record = environment_record->outer_environment()) {
dbgln("+> {} ({:p})", environment_record->class_name(), environment_record);
if (is<DeclarativeEnvironmentRecord>(*environment_record)) {
auto& declarative_environment_record = static_cast<DeclarativeEnvironmentRecord const&>(*environment_record);

6
Userland/Libraries/LibJS/Runtime/VM.h
View file

@ -72,7 +72,7 @@ public:
void clear_exception() { m_exception = nullptr; }
void dump_backtrace() const;
void dump_scope_chain() const;
void dump_environment_record_chain() const;
class InterpreterExecutionScope {
public:
@ -122,8 +122,8 @@ public:
const Vector<CallFrame*>& call_stack() const { return m_call_stack; }
Vector<CallFrame*>& call_stack() { return m_call_stack; }
const EnvironmentRecord* current_scope() const { return call_frame().environment_record; }
EnvironmentRecord* current_scope() { return call_frame().environment_record; }
EnvironmentRecord const* current_environment_record() const { return call_frame().environment_record; }
EnvironmentRecord* current_environment_record() { return call_frame().environment_record; }
bool in_strict_mode() const;