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netsurf/javascript/jsapi/jsapi.h
Vincent Sanders ce32141057 Split up javascript engine makefiles 
by splitting javascript engine specific makefiles and source up we
avoid having to consider old JSAPI or none code while working on
duktape.
2015-10-12 17:40:35 +01:00

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/*
* Copyright 2012 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* spidermonkey jsapi compatability glue.
*/
#ifndef _NETSURF_JAVASCRIPT_JSAPI_H_
#define _NETSURF_JAVASCRIPT_JSAPI_H_
/* include the correct header */
#ifdef WITH_MOZJS
#include "js/jsapi.h"
#else
#include "mozjs/jsapi.h"
#endif
/* logging macros */
#define JSLOG(args...) LOG(args)
#ifdef ENABLE_VERBOSE_JS_DEBUG
#define JSDBG(args...) LOG(args)
#else
#define JSDBG(args...)
#endif
#if JS_VERSION < 180
/************************** Spidermonkey 1.7.0 **************************/
#include <string.h>
#ifndef JSVERSION_LATEST
#define JSVERSION_LATEST JS_VERSION
#endif
#ifndef JSOPTION_JIT
#define JSOPTION_JIT 0
#endif
/* *CAUTION* these native function macros introduce and use jsapi_this
* and jsapi_rval variables, native function code should not conflict
* with these
*/
/* native function definition with five parameters */
#define JSAPI_FUNC(name, cx, argc, vp) \
jsapi_func_##name(cx, JSObject *jsapi_this, argc, vp, jsval *jsapi_rval)
/* native function return value - No macro available */
#define JSAPI_FUNC_RVAL(cx, vp) (jsapi_rval)
/* native function return value setter - No macro available */
#define JSAPI_FUNC_SET_RVAL(cx, vp, v) (*jsapi_rval = (v))
/* arguments */
#define JSAPI_FUNC_ARGV(cx, vp) (vp)
/* check if a jsval is an object */
#define JSAPI_JSVAL_IS_OBJECT(v) JSVAL_IS_OBJECT(v)
/* native function specifier with five parameters and no JS_FS macro */
#define JSAPI_FS(name, nargs, flags) \
{ #name, jsapi_func_##name, nargs, flags, 0 }
/* native function specifier list end */
#define JSAPI_FS_END { NULL, NULL, 0, 0, 0 }
/* native proprty definition */
#define JSAPI_PROP(name, cx, obj, vp) \
jsapi_property_##name(cx, obj, jsval jsapi_id, vp)
#define JSAPI_STRICTPROP JSAPI_PROP
/* native property return value */
#define JSAPI_PROP_RVAL(cx, vp) (*(vp))
/* native property getter return value */
#define JSAPI_PROP_SET_RVAL(cx, vp, v) (*(vp) = (v))
/* native property ID value as a jsval */
#define JSAPI_PROP_IDVAL(cx, vp) (*(vp) = jsapi_id)
/* native property specifier */
#define JSAPI_PS(name, fnname, tinyid, flags) \
{ name , tinyid , flags , jsapi_property_##fnname##_get , jsapi_property_##fnname##_set }
/* native property specifier with no setter */
#define JSAPI_PS_RO(name, fnname, tinyid, flags) \
{ name , tinyid , flags | JSPROP_READONLY, jsapi_property_##fnname##_get , NULL }
/* native property specifier list end */
#define JSAPI_PS_END { NULL, 0, 0, NULL, NULL }
#define JS_StrictPropertyStub JS_PropertyStub
/* The object instance in a native call */
/* "this" JSObject getter */
JSObject * js_ComputeThis(JSContext *cx, JSObject *thisp, void *argv);
#define JSAPI_THIS_OBJECT(cx, vp) \
js_ComputeThis(cx, JSVAL_TO_OBJECT(vp[-1]), vp)
static inline JSObject *
JS_NewCompartmentAndGlobalObject(JSContext *cx,
JSClass *jsclass,
JSPrincipals *principals)
{
JSObject *global;
global = JS_NewObject(cx, jsclass, NULL, NULL);
if (global == NULL) {
return NULL;
}
return global;
}
#define JSString_to_char(injsstring, outchar, outlen) \
outchar = JS_GetStringBytes(injsstring); \
outlen = strlen(outchar)
/* string type cast */
#define JSAPI_STRING_TO_JSVAL(str) ((str == NULL)?JSVAL_NULL:STRING_TO_JSVAL(str))
#define JSAPI_CLASS_NO_INTERNAL_MEMBERS NULL
/* Garbage Collector */
/* macros for GC marking */
#define JSAPI_JSCLASS_MARK_IS_TRACE 0
#define JSAPI_JSCLASS_MARKOP(x) (x)
#define JSAPI_MARKOP(name) uint32_t name(JSContext *cx, JSObject *obj, void *arg)
#define JSAPI_MARKCX cx
#define JSAPI_GCMARK(thing) JS_MarkGCThing(cx, thing, "object", arg)
#define JSAPI_MARKOP_RETURN(value) return value
/* Macros for manipulating GC root */
#define JSAPI_ADD_OBJECT_ROOT(cx, obj) JS_AddRoot(cx, obj)
#define JSAPI_REMOVE_OBJECT_ROOT(cx, obj) JS_RemoveRoot(cx, obj)
#define JSAPI_ADD_VALUE_ROOT(cx, obj) JS_AddRoot(cx, obj)
#define JSAPI_REMOVE_VALUE_ROOT(cx, obj) JS_RemoveRoot(cx, obj)
#elif JS_VERSION == 180
/************************** Spidermonkey 1.8.0 **************************/
#include <string.h>
/* *CAUTION* these macros introduce and use jsapi_this and jsapi_rval
* parameters, native function code should not conflict with these
*/
/* five parameter jsapi native call */
#define JSAPI_FUNC(name, cx, argc, vp) \
jsapi_func_##name(cx, JSObject *jsapi_this, argc, vp, jsval *jsapi_rval)
/* five parameter function descriptor */
#define JSAPI_FS(name, nargs, flags) \
JS_FS(#name, jsapi_func_##name, nargs, flags, 0)
/* function descriptor end */
#define JSAPI_FS_END JS_FS_END
/* return value */
#define JSAPI_RVAL(cx, vp) JS_RVAL(cx, jsapi_rval)
/* return value setter */
#define JSAPI_FUNC_SET_RVAL(cx, vp, v) JS_SET_RVAL(cx, jsapi_rval, v)
/* arguments */
#define JSAPI_FUNC_ARGV(cx, vp) (vp)
/* check if a jsval is an object */
#define JSAPI_JSVAL_IS_OBJECT(v) JSVAL_IS_OBJECT(v)
/* The object instance in a native call */
#define JSAPI_THIS_OBJECT(cx,vp) jsapi_this
/* proprty native calls */
#define JSAPI_PROP(name, cx, obj, vp) \
jsapi_property_##name(cx, obj, jsval jsapi_id, vp)
#define JSAPI_STRICTPROP JSAPI_PROP
/* native property return value */
#define JSAPI_PROP_RVAL JS_RVAL
/* native property return value setter */
#define JSAPI_PROP_SET_RVAL JS_SET_RVAL
/* native property ID value as a jsval */
#define JSAPI_PROP_IDVAL(cx, vp) (*(vp) = jsapi_id)
/* property specifier */
#define JSAPI_PS(name, fnname, tinyid, flags) \
{ name , tinyid , flags , jsapi_property_##fnname##_get , jsapi_property_##fnname##_set }
#define JSAPI_PS_RO(name, fnname, tinyid, flags) \
{ name , tinyid , flags | JSPROP_READONLY, jsapi_property_##fnname##_get , NULL }
#define JSAPI_PS_END { NULL, 0, 0, NULL, NULL }
static inline JSObject *
JS_NewCompartmentAndGlobalObject(JSContext *cx,
JSClass *jsclass,
JSPrincipals *principals)
{
JSObject *global;
global = JS_NewObject(cx, jsclass, NULL, NULL);
if (global == NULL) {
return NULL;
}
return global;
}
#define JS_StrictPropertyStub JS_PropertyStub
#define JSString_to_char(injsstring, outchar, outlen) \
outchar = JS_GetStringBytes(injsstring); \
outlen = strlen(outchar)
/* string type cast */
#define JSAPI_STRING_TO_JSVAL(str) ((str == NULL)?JSVAL_NULL:STRING_TO_JSVAL(str))
#define JSAPI_CLASS_NO_INTERNAL_MEMBERS NULL
/* Garbage Collector */
/* GC marking */
#ifdef JSCLASS_MARK_IS_TRACE
/* mark function pointer requires casting */
#define JSAPI_JSCLASS_MARK_IS_TRACE JSCLASS_MARK_IS_TRACE
#define JSAPI_JSCLASS_MARKOP(x) ((JSMarkOp)x)
#else
/* mark function pointer does not require casting */
#define JSAPI_JSCLASS_MARK_IS_TRACE 0
#define JSAPI_JSCLASS_MARKOP(x) (x)
#endif
#define JSAPI_MARKOP(name) JSBool name(JSTracer *trc, JSObject *obj)
#define JSAPI_MARKCX trc->context
#define JSAPI_GCMARK(thing) JS_CallTracer(trc, thing, JSTRACE_OBJECT);
#define JSAPI_MARKOP_RETURN(value) return value
/* Macros for manipulating GC root */
#define JSAPI_ADD_OBJECT_ROOT(cx, obj) JS_AddRoot(cx, obj)
#define JSAPI_REMOVE_OBJECT_ROOT(cx, obj) JS_RemoveRoot(cx, obj)
#define JSAPI_ADD_VALUE_ROOT(cx, obj) JS_AddRoot(cx, obj)
#define JSAPI_REMOVE_VALUE_ROOT(cx, obj) JS_RemoveRoot(cx, obj)
#else /* #if JS_VERSION == 180 */
/************************** Spidermonkey 1.8.5 **************************/
/* three parameter jsapi native call */
#define JSAPI_FUNC(name, cx, argc, vp) jsapi_func_##name(cx, argc, vp)
/* three parameter function descriptor */
#define JSAPI_FS(name, nargs, flags) \
JS_FS(#name, jsapi_func_##name, nargs, flags)
/* function descriptor end */
#define JSAPI_FS_END JS_FS_END
/* return value */
#define JSAPI_RVAL JS_RVAL
/* return value setter */
#define JSAPI_FUNC_SET_RVAL JS_SET_RVAL
/* arguments */
#define JSAPI_FUNC_ARGV(cx, vp) JS_ARGV(cx,vp)
/* check if a jsval is an object */
#define JSAPI_JSVAL_IS_OBJECT(v) JSVAL_IS_OBJECT(v)
/* The docuemntation says this is obsolete and should be
* ((JSVAL_IS_NULL(v)) || (JSVAL_IS_PRIMITIVE(v)))
* which doesnt work
*/
/* The object instance in a native call */
#define JSAPI_THIS_OBJECT(cx,vp) JS_THIS_OBJECT(cx,vp)
/* proprty native calls */
#define JSAPI_PROP(name, cx, obj, vp) \
jsapi_property_##name(cx, obj, jsid jsapi_id, vp)
#define JSAPI_STRICTPROP(name, cx, obj, vp) \
jsapi_property_##name(cx, obj, jsid jsapi_id, JSBool strict, vp)
/* native property return value */
#define JSAPI_PROP_RVAL JS_RVAL
/* native property getter return value */
#define JSAPI_PROP_SET_RVAL JS_SET_RVAL
/* native property ID value as a jsval */
#define JSAPI_PROP_IDVAL(cx, vp) JS_IdToValue(cx, jsapi_id, vp)
/* property specifier */
#define JSAPI_PS(name, fnname, tinyid, flags) { \
name, \
tinyid, \
flags, \
jsapi_property_##fnname##_get, \
jsapi_property_##fnname##_set \
}
#define JSAPI_PS_RO(name, fnname, tinyid, flags) { \
name, \
tinyid, \
flags | JSPROP_READONLY, \
jsapi_property_##fnname##_get, \
NULL \
}
#define JSAPI_PS_END { NULL, 0, 0, NULL, NULL }
#define JSString_to_char(injsstring, outchar, outlen) \
outlen = JS_GetStringLength(injsstring); \
outchar = alloca(sizeof(char)*(outlen+1)); \
JS_EncodeStringToBuffer(injsstring, outchar, outlen); \
outchar[outlen] = '\0'
/* string type cast */
#define JSAPI_STRING_TO_JSVAL(str) ((str == NULL)?JSVAL_NULL:STRING_TO_JSVAL(str))
#define JSAPI_CLASS_NO_INTERNAL_MEMBERS JSCLASS_NO_INTERNAL_MEMBERS
/* GC marking */
#ifdef JSCLASS_MARK_IS_TRACE
/* mark function pointer requires casting */
#define JSAPI_JSCLASS_MARK_IS_TRACE JSCLASS_MARK_IS_TRACE
#define JSAPI_JSCLASS_MARKOP(x) ((JSMarkOp)x)
#else
/* mark function pointer does not require casting */
#define JSAPI_JSCLASS_MARK_IS_TRACE 0
#define JSAPI_JSCLASS_MARKOP(x) (x)
#endif
#define JSAPI_MARKOP(name) void name(JSTracer *trc, JSObject *obj)
#define JSAPI_MARKCX trc->context
#define JSAPI_GCMARK(thing) JS_CallTracer(trc, thing, JSTRACE_OBJECT);
#define JSAPI_MARKOP_RETURN(value)
/* Macros for manipulating GC root */
#define JSAPI_ADD_OBJECT_ROOT(cx, obj) JS_AddObjectRoot(cx, obj)
#define JSAPI_REMOVE_OBJECT_ROOT(cx, obj) JS_RemoveObjectRoot(cx, obj)
#define JSAPI_ADD_VALUE_ROOT(cx, val) JS_AddValueRoot(cx, val)
#define JSAPI_REMOVE_VALUE_ROOT(cx, val) JS_RemoveValueRoot(cx, val)
#endif
/************************** **************************/
#endif
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