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jsscriptinlines.h
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jsscriptinlines.h
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sw=4 et tw=79 ft=cpp:
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 SpiderMonkey JavaScript engine.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Jason Orendorff <jorendorff@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jsscriptinlines_h___
#define jsscriptinlines_h___
#include "jsautooplen.h"
#include "jscntxt.h"
#include "jsfun.h"
#include "jsopcode.h"
#include "jsscript.h"
#include "jsscope.h"
#include "vm/ScopeObject.h"
#include "vm/GlobalObject.h"
#include "vm/RegExpObject.h"
#include "jsscopeinlines.h"
namespace js {
inline
Bindings::Bindings(JSContext *cx)
: lastBinding(NULL), nargs(0), nvars(0), hasDup_(false)
{}
inline void
Bindings::transfer(JSContext *cx, Bindings *bindings)
{
JS_ASSERT(!lastBinding);
JS_ASSERT(!bindings->lastBinding || !bindings->lastBinding->inDictionary());
*this = *bindings;
#ifdef DEBUG
bindings->lastBinding = NULL;
#endif
}
inline void
Bindings::clone(JSContext *cx, Bindings *bindings)
{
JS_ASSERT(!lastBinding);
JS_ASSERT(!bindings->lastBinding || !bindings->lastBinding->inDictionary());
*this = *bindings;
}
Shape *
Bindings::lastShape() const
{
JS_ASSERT(lastBinding);
JS_ASSERT(!lastBinding->inDictionary());
return lastBinding;
}
Shape *
Bindings::initialShape(JSContext *cx) const
{
/* Get an allocation kind to match an empty call object. */
gc::AllocKind kind = gc::FINALIZE_OBJECT4;
JS_ASSERT(gc::GetGCKindSlots(kind) == CallObject::RESERVED_SLOTS + 1);
return EmptyShape::getInitialShape(cx, &CallClass, NULL, NULL, kind,
BaseShape::VAROBJ);
}
bool
Bindings::ensureShape(JSContext *cx)
{
if (!lastBinding) {
lastBinding = initialShape(cx);
if (!lastBinding)
return false;
}
return true;
}
bool
Bindings::extensibleParents()
{
return lastBinding && lastBinding->extensibleParents();
}
extern void
CurrentScriptFileLineOriginSlow(JSContext *cx, const char **file, unsigned *linenop, JSPrincipals **origin);
inline void
CurrentScriptFileLineOrigin(JSContext *cx, const char **file, unsigned *linenop, JSPrincipals **origin,
LineOption opt = NOT_CALLED_FROM_JSOP_EVAL)
{
if (opt == CALLED_FROM_JSOP_EVAL) {
JS_ASSERT(JSOp(*cx->regs().pc) == JSOP_EVAL);
JS_ASSERT(*(cx->regs().pc + JSOP_EVAL_LENGTH) == JSOP_LINENO);
JSScript *script = cx->fp()->script();
*file = script->filename;
*linenop = GET_UINT16(cx->regs().pc + JSOP_EVAL_LENGTH);
*origin = script->originPrincipals;
return;
}
CurrentScriptFileLineOriginSlow(cx, file, linenop, origin);
}
inline void
ScriptCounts::destroy(FreeOp *fop)
{
fop->free_(pcCountsVector);
}
inline void
MarkScriptFilename(JSRuntime *rt, const char *filename)
{
/*
* As an invariant, a ScriptFilenameEntry should not be 'marked' outside of
* a GC. Since SweepScriptFilenames is only called during a full gc,
* to preserve this invariant, only mark during a full gc.
*/
if (rt->gcIsFull)
ScriptFilenameEntry::fromFilename(filename)->marked = true;
}
} // namespace js
inline void
JSScript::setFunction(JSFunction *fun)
{
function_ = fun;
}
inline JSFunction *
JSScript::getFunction(size_t index)
{
JSObject *funobj = getObject(index);
JS_ASSERT(funobj->isFunction() && funobj->toFunction()->isInterpreted());
return funobj->toFunction();
}
inline JSFunction *
JSScript::getCallerFunction()
{
JS_ASSERT(savedCallerFun);
return getFunction(0);
}
inline JSObject *
JSScript::getRegExp(size_t index)
{
js::ObjectArray *arr = regexps();
JS_ASSERT(uint32_t(index) < arr->length);
JSObject *obj = arr->vector[index];
JS_ASSERT(obj->isRegExp());
return obj;
}
inline bool
JSScript::isEmpty() const
{
if (length > 3)
return false;
jsbytecode *pc = code;
if (noScriptRval && JSOp(*pc) == JSOP_FALSE)
++pc;
return JSOp(*pc) == JSOP_STOP;
}
inline bool
JSScript::hasGlobal() const
{
/*
* Make sure that we don't try to query information about global objects
* which have had their scopes cleared. compileAndGo code should not run
* anymore against such globals.
*/
JS_ASSERT(types && types->hasScope());
js::GlobalObject *obj = types->global;
return obj && !obj->isCleared();
}
inline js::GlobalObject *
JSScript::global() const
{
JS_ASSERT(hasGlobal());
return types->global;
}
inline bool
JSScript::hasClearedGlobal() const
{
JS_ASSERT(types && types->hasScope());
js::GlobalObject *obj = types->global;
return obj && obj->isCleared();
}
inline js::types::TypeScriptNesting *
JSScript::nesting() const
{
JS_ASSERT(function() && types && types->hasScope());
return types->nesting;
}
inline void
JSScript::clearNesting()
{
js::types::TypeScriptNesting *nesting = this->nesting();
if (nesting) {
js::Foreground::delete_(nesting);
types->nesting = NULL;
}
}
inline void
JSScript::writeBarrierPre(JSScript *script)
{
#ifdef JSGC_INCREMENTAL
if (!script)
return;
JSCompartment *comp = script->compartment();
if (comp->needsBarrier()) {
JS_ASSERT(!comp->rt->gcRunning);
JSScript *tmp = script;
MarkScriptUnbarriered(comp->barrierTracer(), &tmp, "write barrier");
JS_ASSERT(tmp == script);
}
#endif
}
inline void
JSScript::writeBarrierPost(JSScript *script, void *addr)
{
}
#endif /* jsscriptinlines_h___ */