/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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/. */
package org.mozilla.javascript;
/**
* This class is used by the V8 extension "Error.prepareStackTrace." It is passed to
* that function, which may then use it to format the stack as it sees fit.
*/
public class NativeCallSite extends IdScriptableObject
{
private static final String CALLSITE_TAG = "CallSite";
private ScriptStackElement element;
static void init(Scriptable scope, boolean sealed)
{
NativeCallSite cs = new NativeCallSite();
cs.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);
}
static NativeCallSite make(Scriptable scope, Scriptable ctorObj)
{
NativeCallSite cs = new NativeCallSite();
Scriptable proto = (Scriptable)(ctorObj.get("prototype", ctorObj));
cs.setParentScope(scope);
cs.setPrototype(proto);
return cs;
}
private NativeCallSite()
{
}
void setElement(ScriptStackElement elt)
{
this.element = elt;
}
@Override
public String getClassName()
{
return "CallSite";
}
@Override
protected void initPrototypeId(int id)
{
String s;
int arity;
switch (id) {
case Id_constructor: arity = 0; s="constructor"; break;
case Id_getThis: arity = 0; s="getThis"; break;
case Id_getTypeName: arity = 0; s="getTypeName"; break;
case Id_getFunction: arity = 0; s="getFunction"; break;
case Id_getFunctionName: arity = 0; s="getFunctionName"; break;
case Id_getMethodName: arity = 0; s="getMethodName"; break;
case Id_getFileName: arity = 0; s="getFileName"; break;
case Id_getLineNumber: arity = 0; s="getLineNumber"; break;
case Id_getColumnNumber: arity = 0; s="getColumnNumber"; break;
case Id_getEvalOrigin: arity = 0; s="getEvalOrigin"; break;
case Id_isToplevel: arity = 0; s="isToplevel"; break;
case Id_isEval: arity = 0; s="isEval"; break;
case Id_isNative: arity = 0; s="isNative"; break;
case Id_isConstructor: arity = 0; s="isConstructor"; break;
case Id_toString: arity = 0; s="toString"; break;
default: throw new IllegalArgumentException(String.valueOf(id));
}
initPrototypeMethod(CALLSITE_TAG, id, s, arity);
}
@Override
public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,
Scriptable thisObj, Object[] args)
{
if (!f.hasTag(CALLSITE_TAG)) {
return super.execIdCall(f, cx, scope, thisObj, args);
}
int id = f.methodId();
switch (id) {
case Id_constructor:
return make(scope, f);
case Id_getFunctionName:
return getFunctionName(thisObj);
case Id_getFileName:
return getFileName(thisObj);
case Id_getLineNumber:
return getLineNumber(thisObj);
case Id_getThis:
case Id_getTypeName:
case Id_getFunction:
case Id_getColumnNumber:
return getUndefined();
case Id_getMethodName:
return getNull();
case Id_getEvalOrigin:
case Id_isEval:
case Id_isConstructor:
case Id_isNative:
case Id_isToplevel:
return getFalse();
case Id_toString:
return js_toString(thisObj);
default:
throw new IllegalArgumentException(String.valueOf(id));
}
}
@Override
public String toString()
{
if (element == null) {
return "";
}
return element.toString();
}
private Object js_toString(Scriptable obj)
{
while(obj != null && !(obj instanceof NativeCallSite)) {
obj = obj.getPrototype();
}
if (obj == null) {
return NOT_FOUND;
}
NativeCallSite cs = (NativeCallSite)obj;
StringBuilder sb = new StringBuilder();
cs.element.renderJavaStyle(sb);
return sb.toString();
}
private Object getUndefined()
{
return Undefined.instance;
}
private Object getNull()
{
return null;
}
private Object getFalse()
{
return Boolean.FALSE;
}
private Object getFunctionName(Scriptable obj)
{
while(obj != null && !(obj instanceof NativeCallSite)) {
obj = obj.getPrototype();
}
if (obj == null) {
return NOT_FOUND;
}
NativeCallSite cs = (NativeCallSite)obj;
return (cs.element == null ? null : cs.element.functionName);
}
private Object getFileName(Scriptable obj)
{
while(obj != null && !(obj instanceof NativeCallSite)) {
obj = obj.getPrototype();
}
if (obj == null) {
return NOT_FOUND;
}
NativeCallSite cs = (NativeCallSite)obj;
return (cs.element == null ? null : cs.element.fileName);
}
private Object getLineNumber(Scriptable obj)
{
while(obj != null && !(obj instanceof NativeCallSite)) {
obj = obj.getPrototype();
}
if (obj == null) {
return NOT_FOUND;
}
NativeCallSite cs = (NativeCallSite)obj;
if ((cs.element == null) || (cs.element.lineNumber < 0)) {
return Undefined.instance;
}
return cs.element.lineNumber;
}
// #string_id_map#
@Override
protected int findPrototypeId(String s)
{
int id;
// #generated# Last update: 2015-03-02 23:42:12 PST
L0: { id = 0; String X = null; int c;
L: switch (s.length()) {
case 6: X="isEval";id=Id_isEval; break L;
case 7: X="getThis";id=Id_getThis; break L;
case 8: c=s.charAt(0);
if (c=='i') { X="isNative";id=Id_isNative; }
else if (c=='t') { X="toString";id=Id_toString; }
break L;
case 10: X="isToplevel";id=Id_isToplevel; break L;
case 11: switch (s.charAt(4)) {
case 'i': X="getFileName";id=Id_getFileName; break L;
case 't': X="constructor";id=Id_constructor; break L;
case 'u': X="getFunction";id=Id_getFunction; break L;
case 'y': X="getTypeName";id=Id_getTypeName; break L;
} break L;
case 13: switch (s.charAt(3)) {
case 'E': X="getEvalOrigin";id=Id_getEvalOrigin; break L;
case 'L': X="getLineNumber";id=Id_getLineNumber; break L;
case 'M': X="getMethodName";id=Id_getMethodName; break L;
case 'o': X="isConstructor";id=Id_isConstructor; break L;
} break L;
case 15: c=s.charAt(3);
if (c=='C') { X="getColumnNumber";id=Id_getColumnNumber; }
else if (c=='F') { X="getFunctionName";id=Id_getFunctionName; }
break L;
}
if (X!=null && X!=s && !X.equals(s)) id = 0;
break L0;
}
// #/generated#
return id;
}
private static final int
Id_constructor = 1,
Id_getThis = 2,
Id_getTypeName = 3,
Id_getFunction = 4,
Id_getFunctionName = 5,
Id_getMethodName = 6,
Id_getFileName = 7,
Id_getLineNumber = 8,
Id_getColumnNumber = 9,
Id_getEvalOrigin = 10,
Id_isToplevel = 11,
Id_isEval = 12,
Id_isNative = 13,
Id_isConstructor = 14,
Id_toString = 15,
MAX_PROTOTYPE_ID = 15;
// #/string_id_map#
}