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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/. */
#ifndef frontend_BytecodeCompilation_h
#define frontend_BytecodeCompilation_h
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/Utf8.h" // mozilla::Utf8Unit
#include "frontend/ScriptIndex.h" // ScriptIndex
#include "js/CompileOptions.h" // JS::ReadOnlyCompileOptions, JS::InstantiateOptions
#include "js/SourceText.h" // JS::SourceText
#include "js/TypeDecls.h" // JS::Handle (fwd)
#include "js/UniquePtr.h" // js::UniquePtr
#include "vm/ScopeKind.h" // js::ScopeKind
namespace js {
class Scope;
class LifoAlloc;
class FrontendContext;
namespace frontend {
struct CompilationInput;
struct CompilationGCOutput;
struct CompilationStencil;
struct ExtensibleCompilationStencil;
class ScopeBindingCache;
extern already_AddRefed<CompilationStencil> CompileGlobalScriptToStencil(
JSContext* maybeCx, FrontendContext* fc, js::LifoAlloc& tempLifoAlloc,
CompilationInput& input, ScopeBindingCache* scopeCache,
JS::SourceText<char16_t>& srcBuf, ScopeKind scopeKind);
extern already_AddRefed<CompilationStencil> CompileGlobalScriptToStencil(
JSContext* maybeCx, FrontendContext* fc, js::LifoAlloc& tempLifoAlloc,
CompilationInput& input, ScopeBindingCache* scopeCache,
JS::SourceText<mozilla::Utf8Unit>& srcBuf, ScopeKind scopeKind);
extern UniquePtr<ExtensibleCompilationStencil>
CompileGlobalScriptToExtensibleStencil(JSContext* maybeCx, FrontendContext* fc,
CompilationInput& input,
ScopeBindingCache* scopeCache,
JS::SourceText<char16_t>& srcBuf,
ScopeKind scopeKind);
extern UniquePtr<ExtensibleCompilationStencil>
CompileGlobalScriptToExtensibleStencil(
JSContext* maybeCx, FrontendContext* fc, CompilationInput& input,
ScopeBindingCache* scopeCache, JS::SourceText<mozilla::Utf8Unit>& srcBuf,
ScopeKind scopeKind);
// Perform some operation to reduce the time taken by instantiation.
//
// Part of InstantiateStencils can be done by calling PrepareForInstantiate.
// PrepareForInstantiate is GC-free operation that can be performed
// off-main-thread without parse global.
[[nodiscard]] extern bool PrepareForInstantiate(
JSContext* maybeCx, FrontendContext* fc, CompilationInput& input,
const CompilationStencil& stencil, CompilationGCOutput& gcOutput);
[[nodiscard]] extern bool InstantiateStencils(JSContext* cx,
CompilationInput& input,
const CompilationStencil& stencil,
CompilationGCOutput& gcOutput);
extern JSScript* CompileGlobalScript(JSContext* cx, FrontendContext* fc,
const JS::ReadOnlyCompileOptions& options,
JS::SourceText<char16_t>& srcBuf,
ScopeKind scopeKind);
extern JSScript* CompileGlobalScript(JSContext* cx, FrontendContext* fc,
const JS::ReadOnlyCompileOptions& options,
JS::SourceText<mozilla::Utf8Unit>& srcBuf,
ScopeKind scopeKind);
extern JSScript* CompileEvalScript(JSContext* cx,
const JS::ReadOnlyCompileOptions& options,
JS::SourceText<char16_t>& srcBuf,
JS::Handle<js::Scope*> enclosingScope,
JS::Handle<JSObject*> enclosingEnv);
extern bool DelazifyCanonicalScriptedFunction(JSContext* cx,
FrontendContext* fc,
JS::Handle<JSFunction*> fun);
extern already_AddRefed<CompilationStencil> DelazifyCanonicalScriptedFunction(
JSContext* cx, FrontendContext* fc, ScopeBindingCache* scopeCache,
CompilationStencil& context, ScriptIndex scriptIndex);
// Certain compile options will disable the syntax parser entirely.
inline bool CanLazilyParse(const JS::ReadOnlyCompileOptions& options) {
return !options.discardSource && !options.sourceIsLazy &&
!options.forceFullParse();
}
void FireOnNewScript(JSContext* cx, const JS::InstantiateOptions& options,
JS::Handle<JSScript*> script);
} // namespace frontend
} // namespace js
#endif // frontend_BytecodeCompilation_h
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