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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* 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/. */
#include "frontend/LexicalScopeEmitter.h"
#include "frontend/BytecodeEmitter.h" // BytecodeEmitter
using namespace js;
using namespace js::frontend;
LexicalScopeEmitter::LexicalScopeEmitter(BytecodeEmitter* bce) : bce_(bce) {}
bool LexicalScopeEmitter::emitScope(ScopeKind kind,
LexicalScope::ParserData* bindings) {
MOZ_ASSERT(state_ == State::Start);
MOZ_ASSERT(bindings);
tdzCache_.emplace(bce_);
emitterScope_.emplace(bce_);
if (!emitterScope_->enterLexical(bce_, kind, bindings)) {
return false;
}
#ifdef DEBUG
state_ = State::Scope;
#endif
return true;
}
bool LexicalScopeEmitter::emitEmptyScope() {
MOZ_ASSERT(state_ == State::Start);
tdzCache_.emplace(bce_);
#ifdef DEBUG
state_ = State::Scope;
#endif
return true;
}
bool LexicalScopeEmitter::emitEnd() {
MOZ_ASSERT(state_ == State::Scope);
if (emitterScope_) {
if (!emitterScope_->leave(bce_)) {
return false;
}
emitterScope_.reset();
}
tdzCache_.reset();
#ifdef DEBUG
state_ = State::End;
#endif
return true;
}
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