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axmol/scripting/javascript/spidermonkey-win32/include/jspubtd.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* 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 jspubtd_h___
#define jspubtd_h___
/*
* JS public API typedefs.
*/
#include "jsprototypes.h"
#include "jstypes.h"
namespace JS {
/*
* Allow headers to reference JS::Value without #including the whole jsapi.h.
* Unfortunately, typedefs (hence jsval) cannot be declared.
*/
class Value;
template <typename T>
class Rooted;
struct Zone;
} /* namespace JS */
/*
* In release builds, jsid is defined to be an integral type. This
* prevents many bugs from being caught at compile time. E.g.:
*
* jsid id = ...
* if (id == JS_TRUE) // error
* ...
*
* size_t n = id; // error
*
* To catch more errors, jsid is given a struct type in C++ debug builds.
* Struct assignment and (in C++) operator== allow correct code to be mostly
* oblivious to the change. This feature can be explicitly disabled in debug
* builds by defining JS_NO_JSVAL_JSID_STRUCT_TYPES.
*/
// Needed for cocos2d-js
#define JS_NO_JSVAL_JSID_STRUCT_TYPES
# if defined(DEBUG) && !defined(JS_NO_JSVAL_JSID_STRUCT_TYPES)
# define JS_USE_JSID_STRUCT_TYPES
# endif
# ifdef JS_USE_JSID_STRUCT_TYPES
struct jsid
{
size_t asBits;
bool operator==(jsid rhs) const { return asBits == rhs.asBits; }
bool operator!=(jsid rhs) const { return asBits != rhs.asBits; }
};
# define JSID_BITS(id) (id.asBits)
# else /* defined(JS_USE_JSID_STRUCT_TYPES) */
typedef ptrdiff_t jsid;
# define JSID_BITS(id) (id)
# endif /* defined(JS_USE_JSID_STRUCT_TYPES) */
#ifdef WIN32
typedef wchar_t jschar;
#else
typedef uint16_t jschar;
#endif
/*
* Run-time version enumeration. For compile-time version checking, please use
* the JS_HAS_* macros in jsversion.h, or use MOZJS_MAJOR_VERSION,
* MOZJS_MINOR_VERSION, MOZJS_PATCH_VERSION, and MOZJS_ALPHA definitions.
*/
typedef enum JSVersion {
JSVERSION_ECMA_3 = 148,
JSVERSION_1_6 = 160,
JSVERSION_1_7 = 170,
JSVERSION_1_8 = 180,
JSVERSION_ECMA_5 = 185,
JSVERSION_DEFAULT = 0,
JSVERSION_UNKNOWN = -1,
JSVERSION_LATEST = JSVERSION_ECMA_5
} JSVersion;
/* Result of typeof operator enumeration. */
typedef enum JSType {
JSTYPE_VOID, /* undefined */
JSTYPE_OBJECT, /* object */
JSTYPE_FUNCTION, /* function */
JSTYPE_STRING, /* string */
JSTYPE_NUMBER, /* number */
JSTYPE_BOOLEAN, /* boolean */
JSTYPE_NULL, /* null */
JSTYPE_LIMIT
} JSType;
/* Dense index into cached prototypes and class atoms for standard objects. */
typedef enum JSProtoKey {
#define PROTOKEY_AND_INITIALIZER(name,code,init) JSProto_##name = code,
JS_FOR_EACH_PROTOTYPE(PROTOKEY_AND_INITIALIZER)
#undef JS_PROTO
JSProto_LIMIT
} JSProtoKey;
/* js_CheckAccess mode enumeration. */
typedef enum JSAccessMode {
JSACC_PROTO = 0, /* XXXbe redundant w.r.t. id */
/*
* enum value #1 formerly called JSACC_PARENT,
* gap preserved for ABI compatibility.
*/
/*
* enum value #2 formerly called JSACC_IMPORT,
* gap preserved for ABI compatibility.
*/
JSACC_WATCH = 3, /* a watchpoint on object foo for id 'bar' */
JSACC_READ = 4, /* a "get" of foo.bar */
JSACC_WRITE = 8, /* a "set" of foo.bar = baz */
JSACC_LIMIT
} JSAccessMode;
#define JSACC_TYPEMASK (JSACC_WRITE - 1)
/*
* This enum type is used to control the behavior of a JSObject property
* iterator function that has type JSNewEnumerate.
*/
typedef enum JSIterateOp {
/* Create new iterator state over enumerable properties. */
JSENUMERATE_INIT,
/* Create new iterator state over all properties. */
JSENUMERATE_INIT_ALL,
/* Iterate once. */
JSENUMERATE_NEXT,
/* Destroy iterator state. */
JSENUMERATE_DESTROY
} JSIterateOp;
/* See JSVAL_TRACE_KIND and JSTraceCallback in jsapi.h. */
typedef enum {
JSTRACE_OBJECT,
JSTRACE_STRING,
JSTRACE_SCRIPT,
/*
* Trace kinds internal to the engine. The embedding can only them if it
* implements JSTraceCallback.
*/
JSTRACE_IONCODE,
JSTRACE_SHAPE,
JSTRACE_BASE_SHAPE,
JSTRACE_TYPE_OBJECT,
JSTRACE_LAST = JSTRACE_TYPE_OBJECT
} JSGCTraceKind;
/* Struct typedefs and class forward declarations. */
typedef struct JSClass JSClass;
typedef struct JSCompartment JSCompartment;
typedef struct JSConstDoubleSpec JSConstDoubleSpec;
typedef struct JSContext JSContext;
typedef struct JSCrossCompartmentCall JSCrossCompartmentCall;
typedef struct JSErrorReport JSErrorReport;
typedef struct JSExceptionState JSExceptionState;
typedef struct JSFunctionSpec JSFunctionSpec;
typedef struct JSIdArray JSIdArray;
typedef struct JSLocaleCallbacks JSLocaleCallbacks;
typedef struct JSObjectMap JSObjectMap;
typedef struct JSPrincipals JSPrincipals;
typedef struct JSPropertyDescriptor JSPropertyDescriptor;
typedef struct JSPropertyName JSPropertyName;
typedef struct JSPropertySpec JSPropertySpec;
typedef struct JSRuntime JSRuntime;
typedef struct JSSecurityCallbacks JSSecurityCallbacks;
typedef struct JSStructuredCloneCallbacks JSStructuredCloneCallbacks;
typedef struct JSStructuredCloneReader JSStructuredCloneReader;
typedef struct JSStructuredCloneWriter JSStructuredCloneWriter;
typedef struct JSTracer JSTracer;
class JSFlatString;
class JSFunction;
class JSObject;
class JSScript;
class JSStableString; // long story
class JSString;
#ifdef JS_THREADSAFE
typedef struct PRCallOnceType JSCallOnceType;
#else
typedef JSBool JSCallOnceType;
#endif
typedef JSBool (*JSInitCallback)(void);
namespace JS {
namespace shadow {
struct Runtime
{
/* Restrict zone access during Minor GC. */
bool needsBarrier_;
#ifdef JSGC_GENERATIONAL
/* Allow inlining of Nursery::isInside. */
uintptr_t gcNurseryStart_;
uintptr_t gcNurseryEnd_;
#endif
Runtime()
: needsBarrier_(false)
#ifdef JSGC_GENERATIONAL
, gcNurseryStart_(0)
, gcNurseryEnd_(0)
#endif
{}
};
} /* namespace shadow */
} /* namespace JS */
namespace js {
class Allocator;
class SkipRoot;
enum ThingRootKind
{
THING_ROOT_OBJECT,
THING_ROOT_SHAPE,
THING_ROOT_BASE_SHAPE,
THING_ROOT_TYPE_OBJECT,
THING_ROOT_STRING,
THING_ROOT_ION_CODE,
THING_ROOT_SCRIPT,
THING_ROOT_ID,
THING_ROOT_PROPERTY_ID,
THING_ROOT_VALUE,
THING_ROOT_TYPE,
THING_ROOT_BINDINGS,
THING_ROOT_PROPERTY_DESCRIPTOR,
THING_ROOT_LIMIT
};
template <typename T>
struct RootKind;
/*
* Specifically mark the ThingRootKind of externally visible types, so that
* JSAPI users may use JSRooted... types without having the class definition
* available.
*/
template<typename T, ThingRootKind Kind>
struct SpecificRootKind
{
static ThingRootKind rootKind() { return Kind; }
};
template <> struct RootKind<JSObject *> : SpecificRootKind<JSObject *, THING_ROOT_OBJECT> {};
template <> struct RootKind<JSFlatString *> : SpecificRootKind<JSFlatString *, THING_ROOT_STRING> {};
template <> struct RootKind<JSFunction *> : SpecificRootKind<JSFunction *, THING_ROOT_OBJECT> {};
template <> struct RootKind<JSString *> : SpecificRootKind<JSString *, THING_ROOT_STRING> {};
template <> struct RootKind<JSScript *> : SpecificRootKind<JSScript *, THING_ROOT_SCRIPT> {};
template <> struct RootKind<jsid> : SpecificRootKind<jsid, THING_ROOT_ID> {};
template <> struct RootKind<JS::Value> : SpecificRootKind<JS::Value, THING_ROOT_VALUE> {};
struct ContextFriendFields {
JSRuntime *const runtime;
/* The current compartment. */
JSCompartment *compartment;
/* The current zone. */
JS::Zone *zone_;
explicit ContextFriendFields(JSRuntime *rt)
: runtime(rt), compartment(NULL), zone_(NULL)
{ }
static const ContextFriendFields *get(const JSContext *cx) {
return reinterpret_cast<const ContextFriendFields *>(cx);
}
static ContextFriendFields *get(JSContext *cx) {
return reinterpret_cast<ContextFriendFields *>(cx);
}
#if defined(JSGC_ROOT_ANALYSIS) || defined(JSGC_USE_EXACT_ROOTING)
/*
* Stack allocated GC roots for stack GC heap pointers, which may be
* overwritten if moved during a GC.
*/
JS::Rooted<void*> *thingGCRooters[THING_ROOT_LIMIT];
#endif
#if defined(DEBUG) && defined(JS_GC_ZEAL) && defined(JSGC_ROOT_ANALYSIS) && !defined(JS_THREADSAFE)
/*
* Stack allocated list of stack locations which hold non-relocatable
* GC heap pointers (where the target is rooted somewhere else) or integer
* values which may be confused for GC heap pointers. These are used to
* suppress false positives which occur when a rooting analysis treats the
* location as holding a relocatable pointer, but have no other effect on
* GC behavior.
*/
SkipRoot *skipGCRooters;
#endif
};
class PerThreadData;
struct PerThreadDataFriendFields
{
private:
// Note: this type only exists to permit us to derive the offset of
// the perThread data within the real JSRuntime* type in a portable
// way.
struct RuntimeDummy : JS::shadow::Runtime
{
struct PerThreadDummy {
void *field1;
uintptr_t field2;
#ifdef DEBUG
uint64_t field3;
#endif
} mainThread;
};
public:
PerThreadDataFriendFields();
#if defined(JSGC_ROOT_ANALYSIS) || defined(JSGC_USE_EXACT_ROOTING)
/*
* Stack allocated GC roots for stack GC heap pointers, which may be
* overwritten if moved during a GC.
*/
JS::Rooted<void*> *thingGCRooters[THING_ROOT_LIMIT];
#endif
#if defined(DEBUG) && defined(JS_GC_ZEAL) && defined(JSGC_ROOT_ANALYSIS) && !defined(JS_THREADSAFE)
/*
* Stack allocated list of stack locations which hold non-relocatable
* GC heap pointers (where the target is rooted somewhere else) or integer
* values which may be confused for GC heap pointers. These are used to
* suppress false positives which occur when a rooting analysis treats the
* location as holding a relocatable pointer, but have no other effect on
* GC behavior.
*/
SkipRoot *skipGCRooters;
#endif
/* Limit pointer for checking native stack consumption. */
uintptr_t nativeStackLimit;
static const size_t RuntimeMainThreadOffset = offsetof(RuntimeDummy, mainThread);
static inline PerThreadDataFriendFields *get(js::PerThreadData *pt) {
return reinterpret_cast<PerThreadDataFriendFields *>(pt);
}
static inline PerThreadDataFriendFields *getMainThread(JSRuntime *rt) {
// mainThread must always appear directly after |JS::shadow::Runtime|.
// Tested by a JS_STATIC_ASSERT in |jsfriendapi.cpp|
return reinterpret_cast<PerThreadDataFriendFields *>(
reinterpret_cast<char*>(rt) + RuntimeMainThreadOffset);
}
static inline const PerThreadDataFriendFields *getMainThread(const JSRuntime *rt) {
// mainThread must always appear directly after |JS::shadow::Runtime|.
// Tested by a JS_STATIC_ASSERT in |jsfriendapi.cpp|
return reinterpret_cast<const PerThreadDataFriendFields *>(
reinterpret_cast<const char*>(rt) + RuntimeMainThreadOffset);
}
};
} /* namespace js */
#endif /* jspubtd_h___ */
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