gecko-dev/js/src/jsdbgapi.h

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 *
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU Public License (the "GPL"), in which case the
 * provisions of the GPL are applicable instead of those above.
 * If you wish to allow use of your version of this file only
 * under the terms of the GPL and not to allow others to use your
 * version of this file under the NPL, indicate your decision by
 * deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL.  If you do not delete
 * the provisions above, a recipient may use your version of this
 * file under either the NPL or the GPL.
 */

#ifndef jsdbgapi_h___
#define jsdbgapi_h___
/*
 * JS debugger API.
 */
#include "jsapi.h"
#include "jsopcode.h"
#include "jsprvtd.h"

JS_BEGIN_EXTERN_C

extern void
js_PatchOpcode(JSContext *cx, JSScript *script, jsbytecode *pc, JSOp op);

extern JS_PUBLIC_API(JSBool)
JS_SetTrap(JSContext *cx, JSScript *script, jsbytecode *pc,
	   JSTrapHandler handler, void *closure);

extern JS_PUBLIC_API(JSOp)
JS_GetTrapOpcode(JSContext *cx, JSScript *script, jsbytecode *pc);

extern JS_PUBLIC_API(void)
JS_ClearTrap(JSContext *cx, JSScript *script, jsbytecode *pc,
	     JSTrapHandler *handlerp, void **closurep);

extern JS_PUBLIC_API(void)
JS_ClearScriptTraps(JSContext *cx, JSScript *script);

extern JS_PUBLIC_API(void)
JS_ClearAllTraps(JSContext *cx);

extern JS_PUBLIC_API(JSTrapStatus)
JS_HandleTrap(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval);

extern JS_PUBLIC_API(JSBool)
JS_SetInterrupt(JSRuntime *rt, JSTrapHandler handler, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_ClearInterrupt(JSRuntime *rt, JSTrapHandler *handlerp, void **closurep);

/************************************************************************/

extern JS_PUBLIC_API(JSBool)
JS_SetWatchPoint(JSContext *cx, JSObject *obj, jsval id,
		 JSWatchPointHandler handler, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_ClearWatchPoint(JSContext *cx, JSObject *obj, jsval id,
		   JSWatchPointHandler *handlerp, void **closurep);

extern JS_PUBLIC_API(JSBool)
JS_ClearWatchPointsForObject(JSContext *cx, JSObject *obj);

extern JS_PUBLIC_API(JSBool)
JS_ClearAllWatchPoints(JSContext *cx);

#ifdef JS_HAS_OBJ_WATCHPOINT
/*
 * Hide these non-API function prototypes by testing whether the internal
 * header file "jsconfig.h" has been included.
 */
extern void
js_MarkWatchPoints(JSRuntime *rt);

extern JSScopeProperty *
js_FindWatchPoint(JSRuntime *rt, JSScope *scope, jsid id);

extern JSPropertyOp
js_GetWatchedSetter(JSRuntime *rt, JSScope *scope,
                    const JSScopeProperty *sprop);

extern JSBool JS_DLL_CALLBACK
js_watch_set(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

extern JSBool JS_DLL_CALLBACK
js_watch_set_wrapper(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
                     jsval *rval);

extern JSPropertyOp
js_WrapWatchedSetter(JSContext *cx, jsid id, uintN attrs, JSPropertyOp setter);

#endif /* JS_HAS_OBJ_WATCHPOINT */

/************************************************************************/

extern JS_PUBLIC_API(uintN)
JS_PCToLineNumber(JSContext *cx, JSScript *script, jsbytecode *pc);

extern JS_PUBLIC_API(jsbytecode *)
JS_LineNumberToPC(JSContext *cx, JSScript *script, uintN lineno);

extern JS_PUBLIC_API(JSScript *)
JS_GetFunctionScript(JSContext *cx, JSFunction *fun);

extern JS_PUBLIC_API(JSPrincipals *)
JS_GetScriptPrincipals(JSContext *cx, JSScript *script);

/*
 * Stack Frame Iterator
 *
 * Used to iterate through the JS stack frames to extract
 * information from the frames.
 */

extern JS_PUBLIC_API(JSStackFrame *)
JS_FrameIterator(JSContext *cx, JSStackFrame **iteratorp);

extern JS_PUBLIC_API(JSScript *)
JS_GetFrameScript(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(jsbytecode *)
JS_GetFramePC(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSBool)
JS_IsNativeFrame(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(void *)
JS_GetFrameAnnotation(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(void)
JS_SetFrameAnnotation(JSContext *cx, JSStackFrame *fp, void *annotation);

extern JS_PUBLIC_API(void *)
JS_GetFramePrincipalArray(JSContext *cx, JSStackFrame *fp);

/* this is deprecated, use JS_GetFrameScopeChain instead */
extern JS_PUBLIC_API(JSObject *)
JS_GetFrameObject(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSObject *)
JS_GetFrameScopeChain(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSObject *)
JS_GetFrameCallObject(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSObject *)
JS_GetFrameThis(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSFunction *)
JS_GetFrameFunction(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSObject *)
JS_GetFrameFunctionObject(JSContext *cx, JSStackFrame *fp);

/* XXXrginda Initially published with typo */
#define JS_IsContructorFrame JS_IsConstructorFrame
extern JS_PUBLIC_API(JSBool)
JS_IsConstructorFrame(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(JSBool)
JS_IsDebuggerFrame(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(jsval)
JS_GetFrameReturnValue(JSContext *cx, JSStackFrame *fp);

extern JS_PUBLIC_API(void)
JS_SetFrameReturnValue(JSContext *cx, JSStackFrame *fp, jsval rval);

/************************************************************************/

extern JS_PUBLIC_API(const char *)
JS_GetScriptFilename(JSContext *cx, JSScript *script);

extern JS_PUBLIC_API(uintN)
JS_GetScriptBaseLineNumber(JSContext *cx, JSScript *script);

extern JS_PUBLIC_API(uintN)
JS_GetScriptLineExtent(JSContext *cx, JSScript *script);

extern JS_PUBLIC_API(JSVersion)
JS_GetScriptVersion(JSContext *cx, JSScript *script);
     
/************************************************************************/

/*
 * Hook setters for script creation and destruction, see jsprvtd.h for the
 * typedefs.  These macros provide binary compatibility and newer, shorter
 * synonyms.
 */
#define JS_SetNewScriptHook     JS_SetNewScriptHookProc
#define JS_SetDestroyScriptHook JS_SetDestroyScriptHookProc

extern JS_PUBLIC_API(void)
JS_SetNewScriptHook(JSRuntime *rt, JSNewScriptHook hook, void *callerdata);

extern JS_PUBLIC_API(void)
JS_SetDestroyScriptHook(JSRuntime *rt, JSDestroyScriptHook hook,
			void *callerdata);

/************************************************************************/

extern JS_PUBLIC_API(JSBool)
JS_EvaluateUCInStackFrame(JSContext *cx, JSStackFrame *fp,
                          const jschar *bytes, uintN length,
                          const char *filename, uintN lineno,
                          jsval *rval);

extern JS_PUBLIC_API(JSBool)
JS_EvaluateInStackFrame(JSContext *cx, JSStackFrame *fp,
			const char *bytes, uintN length,
			const char *filename, uintN lineno,
			jsval *rval);

/************************************************************************/

typedef struct JSPropertyDesc {
    jsval           id;         /* primary id, a string or int */
    jsval           value;      /* property value */
    uint8           flags;      /* flags, see below */
    uint8           spare;      /* unused */
    uint16          slot;       /* argument/variable slot */
    jsval           alias;      /* alias id if JSPD_ALIAS flag */
} JSPropertyDesc;

#define JSPD_ENUMERATE  0x01    /* visible to for/in loop */
#define JSPD_READONLY   0x02    /* assignment is error */
#define JSPD_PERMANENT  0x04    /* property cannot be deleted */
#define JSPD_ALIAS      0x08    /* property has an alias id */
#define JSPD_ARGUMENT   0x10    /* argument to function */
#define JSPD_VARIABLE   0x20    /* local variable in function */
#define JSPD_EXCEPTION  0x40    /* exception occurred fetching the property, */
                                /* value is exception */
#define JSPD_ERROR      0x80    /* native getter returned JS_FALSE without */
                                /* throwing an exception */

typedef struct JSPropertyDescArray {
    uint32          length;     /* number of elements in array */
    JSPropertyDesc  *array;     /* alloc'd by Get, freed by Put */
} JSPropertyDescArray;

extern JS_PUBLIC_API(JSScopeProperty *)
JS_PropertyIterator(JSObject *obj, JSScopeProperty **iteratorp);

extern JS_PUBLIC_API(JSBool)
JS_GetPropertyDesc(JSContext *cx, JSObject *obj, JSScopeProperty *sprop,
		   JSPropertyDesc *pd);

extern JS_PUBLIC_API(JSBool)
JS_GetPropertyDescArray(JSContext *cx, JSObject *obj, JSPropertyDescArray *pda);

extern JS_PUBLIC_API(void)
JS_PutPropertyDescArray(JSContext *cx, JSPropertyDescArray *pda);

/************************************************************************/

extern JS_PUBLIC_API(JSBool)
JS_SetDebuggerHandler(JSRuntime *rt, JSTrapHandler handler, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_SetSourceHandler(JSRuntime *rt, JSSourceHandler handler, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_SetExecuteHook(JSRuntime *rt, JSInterpreterHook hook, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_SetCallHook(JSRuntime *rt, JSInterpreterHook hook, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_SetObjectHook(JSRuntime *rt, JSObjectHook hook, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_SetThrowHook(JSRuntime *rt, JSTrapHandler hook, void *closure);

extern JS_PUBLIC_API(JSBool)
JS_SetDebugErrorHook(JSRuntime *rt, JSDebugErrorHook hook, void *closure);

/************************************************************************/

extern JS_PUBLIC_API(size_t)
JS_GetObjectTotalSize(JSContext *cx, JSObject *obj);

extern JS_PUBLIC_API(size_t)
JS_GetFunctionTotalSize(JSContext *cx, JSFunction *fun);

extern JS_PUBLIC_API(size_t)
JS_GetScriptTotalSize(JSContext *cx, JSScript *script);

JS_END_EXTERN_C

#endif /* jsdbgapi_h___ */