mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-10 03:45:46 +00:00
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
/* -*- 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.org code.
|
|
*
|
|
* 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):
|
|
*/
|
|
|
|
/*
|
|
* JavaScript Debugging support - Stepping support
|
|
*/
|
|
|
|
#include "jsd.h"
|
|
|
|
/*
|
|
* #define JSD_TRACE 1
|
|
*/
|
|
|
|
#ifdef JSD_TRACE
|
|
|
|
static char*
|
|
_indentSpaces(int i)
|
|
{
|
|
#define MAX_INDENT 63
|
|
static char* p = NULL;
|
|
if(!p)
|
|
{
|
|
p = calloc(1, MAX_INDENT+1);
|
|
if(!p) return "";
|
|
memset(p, ' ', MAX_INDENT);
|
|
}
|
|
if(i > MAX_INDENT) return p;
|
|
return p + MAX_INDENT-i;
|
|
}
|
|
|
|
static void
|
|
_interpreterTrace(JSDContext* jsdc, JSContext *cx, JSStackFrame *fp,
|
|
JSBool before, JSBool *ok)
|
|
{
|
|
JSDScript* jsdscript = NULL;
|
|
JSScript * script;
|
|
static indent = 0;
|
|
char* buf;
|
|
const char* funName = NULL;
|
|
|
|
script = JS_GetFrameScript(cx, fp);
|
|
if(script)
|
|
{
|
|
JSD_LOCK_SCRIPTS(jsdc);
|
|
jsdscript = jsd_FindJSDScript(jsdc, script);
|
|
JSD_UNLOCK_SCRIPTS(jsdc);
|
|
if(jsdscript)
|
|
funName = JSD_GetScriptFunctionName(jsdc, jsdscript);
|
|
}
|
|
if(!funName)
|
|
funName = "TOP_LEVEL";
|
|
|
|
if(before)
|
|
{
|
|
buf = JS_smprintf("%sentering %s %s this: %0x\n",
|
|
_indentSpaces(indent++),
|
|
funName,
|
|
JS_IsContructorFrame(cx, fp) ? "constructing":"",
|
|
(int)JS_GetFrameThis(cx, fp));
|
|
}
|
|
else
|
|
{
|
|
buf = JS_smprintf("%sleaving %s\n",
|
|
_indentSpaces(--indent),
|
|
funName);
|
|
}
|
|
JS_ASSERT(indent >= 0);
|
|
|
|
if(!buf)
|
|
return;
|
|
|
|
printf(buf);
|
|
free(buf);
|
|
}
|
|
#endif
|
|
|
|
void * JS_DLL_CALLBACK
|
|
jsd_InterpreterHook(JSContext *cx, JSStackFrame *fp, JSBool before,
|
|
JSBool *ok, void *closure)
|
|
{
|
|
JSDContext* jsdc = (JSDContext*) closure;
|
|
|
|
if( ! jsdc || ! jsdc->inited )
|
|
return NULL;
|
|
|
|
if(before && JS_IsContructorFrame(cx, fp))
|
|
jsd_Constructing(jsdc, cx, JS_GetFrameThis(cx, fp), fp);
|
|
|
|
#ifdef JSD_TRACE
|
|
_interpreterTrace(jsdc, cx, fp, before, ok);
|
|
return closure;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
/*
|
|
* use this before calling any hook...
|
|
* if( JSD_IS_DANGEROUS_THREAD(jsdc) )
|
|
* return NULL;
|
|
*/
|
|
|
|
}
|