From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- js/src/frontend/LexicalScopeEmitter.cpp | 57 +++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 js/src/frontend/LexicalScopeEmitter.cpp (limited to 'js/src/frontend/LexicalScopeEmitter.cpp') diff --git a/js/src/frontend/LexicalScopeEmitter.cpp b/js/src/frontend/LexicalScopeEmitter.cpp new file mode 100644 index 0000000000..aeda8df9de --- /dev/null +++ b/js/src/frontend/LexicalScopeEmitter.cpp @@ -0,0 +1,57 @@ +/* -*- 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" + +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; +} -- cgit v1.2.3