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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 "vm/BuiltinObjectKind.h"
#include "jspubtd.h"
#include "vm/GlobalObject.h"
#include "vm/JSContext.h"
using namespace js;
static JSProtoKey ToProtoKey(BuiltinObjectKind kind) {
switch (kind) {
case BuiltinObjectKind::Array:
return JSProto_Array;
case BuiltinObjectKind::ArrayBuffer:
return JSProto_ArrayBuffer;
case BuiltinObjectKind::Iterator:
return JSProto_Iterator;
case BuiltinObjectKind::Promise:
return JSProto_Promise;
case BuiltinObjectKind::RegExp:
return JSProto_RegExp;
case BuiltinObjectKind::SharedArrayBuffer:
return JSProto_SharedArrayBuffer;
case BuiltinObjectKind::FunctionPrototype:
return JSProto_Function;
case BuiltinObjectKind::ObjectPrototype:
return JSProto_Object;
case BuiltinObjectKind::RegExpPrototype:
return JSProto_RegExp;
case BuiltinObjectKind::StringPrototype:
return JSProto_String;
case BuiltinObjectKind::DateTimeFormat:
return JSProto_DateTimeFormat;
case BuiltinObjectKind::NumberFormat:
return JSProto_NumberFormat;
case BuiltinObjectKind::None:
break;
}
MOZ_CRASH("Unexpected builtin object kind");
}
static bool IsPrototype(BuiltinObjectKind kind) {
switch (kind) {
case BuiltinObjectKind::Array:
case BuiltinObjectKind::ArrayBuffer:
case BuiltinObjectKind::Iterator:
case BuiltinObjectKind::Promise:
case BuiltinObjectKind::RegExp:
case BuiltinObjectKind::SharedArrayBuffer:
return false;
case BuiltinObjectKind::FunctionPrototype:
case BuiltinObjectKind::ObjectPrototype:
case BuiltinObjectKind::RegExpPrototype:
case BuiltinObjectKind::StringPrototype:
return true;
case BuiltinObjectKind::DateTimeFormat:
case BuiltinObjectKind::NumberFormat:
return false;
case BuiltinObjectKind::None:
break;
}
MOZ_CRASH("Unexpected builtin object kind");
}
using BuiltinName =
const js::frontend::ParserName* js::frontend::WellKnownParserAtoms::*;
struct BuiltinObjectMap {
BuiltinName name;
BuiltinObjectKind kind;
};
BuiltinObjectKind js::BuiltinConstructorForName(
JSContext* cx, const js::frontend::ParserAtom* name) {
using WellKnownName = js::frontend::WellKnownParserAtoms;
static constexpr BuiltinObjectMap constructors[] = {
{&WellKnownName::Array, BuiltinObjectKind::Array},
{&WellKnownName::ArrayBuffer, BuiltinObjectKind::ArrayBuffer},
{&WellKnownName::Iterator, BuiltinObjectKind::Iterator},
{&WellKnownName::Promise, BuiltinObjectKind::Promise},
{&WellKnownName::RegExp, BuiltinObjectKind::RegExp},
{&WellKnownName::SharedArrayBuffer, BuiltinObjectKind::SharedArrayBuffer},
{&WellKnownName::DateTimeFormat, BuiltinObjectKind::DateTimeFormat},
{&WellKnownName::NumberFormat, BuiltinObjectKind::NumberFormat},
};
for (auto& builtin : constructors) {
if (name == cx->parserNames().*(builtin.name)) {
return builtin.kind;
}
}
return BuiltinObjectKind::None;
}
BuiltinObjectKind js::BuiltinPrototypeForName(
JSContext* cx, const js::frontend::ParserAtom* name) {
using WellKnownName = js::frontend::WellKnownParserAtoms;
static constexpr BuiltinObjectMap prototypes[] = {
{&WellKnownName::Function, BuiltinObjectKind::FunctionPrototype},
{&WellKnownName::Object, BuiltinObjectKind::ObjectPrototype},
{&WellKnownName::RegExp, BuiltinObjectKind::RegExpPrototype},
{&WellKnownName::String, BuiltinObjectKind::StringPrototype},
};
for (auto& builtin : prototypes) {
if (name == cx->parserNames().*(builtin.name)) {
return builtin.kind;
}
}
return BuiltinObjectKind::None;
}
JSObject* js::MaybeGetBuiltinObject(GlobalObject* global,
BuiltinObjectKind kind) {
JSProtoKey key = ToProtoKey(kind);
if (IsPrototype(kind)) {
return global->maybeGetPrototype(key);
}
return global->maybeGetConstructor(key);
}
JSObject* js::GetOrCreateBuiltinObject(JSContext* cx, BuiltinObjectKind kind) {
JSProtoKey key = ToProtoKey(kind);
if (IsPrototype(kind)) {
return GlobalObject::getOrCreatePrototype(cx, key);
}
return GlobalObject::getOrCreateConstructor(cx, key);
}
const char* js::BuiltinObjectName(BuiltinObjectKind kind) {
switch (kind) {
case BuiltinObjectKind::Array:
return "Array";
case BuiltinObjectKind::ArrayBuffer:
return "ArrayBuffer";
case BuiltinObjectKind::Iterator:
return "Iterator";
case BuiltinObjectKind::Promise:
return "Promise";
case BuiltinObjectKind::RegExp:
return "RegExp";
case BuiltinObjectKind::SharedArrayBuffer:
return "SharedArrayBuffer";
case BuiltinObjectKind::FunctionPrototype:
return "Function.prototype";
case BuiltinObjectKind::ObjectPrototype:
return "Object.prototype";
case BuiltinObjectKind::RegExpPrototype:
return "RegExp.prototype";
case BuiltinObjectKind::StringPrototype:
return "String.prototype";
case BuiltinObjectKind::DateTimeFormat:
return "DateTimeFormat";
case BuiltinObjectKind::NumberFormat:
return "NumberFormat";
case BuiltinObjectKind::None:
break;
}
MOZ_CRASH("Unexpected builtin object kind");
}
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