From d7c5ad7d6263fd1baf9bfdbaa4c50b70ef2fbdb2 Mon Sep 17 00:00:00 2001 From: Alexander Sulfrian Date: Tue, 8 Jun 2010 08:22:05 +0200 Subject: reverted folder structure change for better mergeing with upstream --- .../src/org/mozilla/javascript/BaseFunction.java | 553 --------------------- 1 file changed, 553 deletions(-) delete mode 100644 infrastructure/rhino1_7R1/src/org/mozilla/javascript/BaseFunction.java (limited to 'infrastructure/rhino1_7R1/src/org/mozilla/javascript/BaseFunction.java') diff --git a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/BaseFunction.java b/infrastructure/rhino1_7R1/src/org/mozilla/javascript/BaseFunction.java deleted file mode 100644 index d7d8992..0000000 --- a/infrastructure/rhino1_7R1/src/org/mozilla/javascript/BaseFunction.java +++ /dev/null @@ -1,553 +0,0 @@ -/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- - * - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0 - * - * 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 Rhino code, released - * May 6, 1999. - * - * The Initial Developer of the Original Code is - * Netscape Communications Corporation. - * Portions created by the Initial Developer are Copyright (C) 1997-1999 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Norris Boyd - * Igor Bukanov - * Roger Lawrence - * Mike McCabe - * - * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License Version 2 or later (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 - * MPL, indicate your decision by deleting the provisions above and replacing - * 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 MPL or the GPL. - * - * ***** END LICENSE BLOCK ***** */ - -package org.mozilla.javascript; - -/** - * The base class for Function objects - * See ECMA 15.3. - * @author Norris Boyd - */ -public class BaseFunction extends IdScriptableObject implements Function -{ - - static final long serialVersionUID = 5311394446546053859L; - - private static final Object FUNCTION_TAG = new Object(); - - static void init(Scriptable scope, boolean sealed) - { - BaseFunction obj = new BaseFunction(); - // Function.prototype attributes: see ECMA 15.3.3.1 - obj.prototypePropertyAttributes = DONTENUM | READONLY | PERMANENT; - obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed); - } - - public BaseFunction() - { - } - - public BaseFunction(Scriptable scope, Scriptable prototype) - { - super(scope, prototype); - } - - public String getClassName() { - return "Function"; - } - - /** - * Implements the instanceof operator for JavaScript Function objects. - *

- * - * foo = new Foo();
- * foo instanceof Foo; // true
- * - * - * @param instance The value that appeared on the LHS of the instanceof - * operator - * @return true if the "prototype" property of "this" appears in - * value's prototype chain - * - */ - public boolean hasInstance(Scriptable instance) - { - Object protoProp = ScriptableObject.getProperty(this, "prototype"); - if (protoProp instanceof Scriptable) { - return ScriptRuntime.jsDelegatesTo(instance, (Scriptable)protoProp); - } - throw ScriptRuntime.typeError1("msg.instanceof.bad.prototype", - getFunctionName()); - } - -// #string_id_map# - - private static final int - Id_length = 1, - Id_arity = 2, - Id_name = 3, - Id_prototype = 4, - Id_arguments = 5, - - MAX_INSTANCE_ID = 5; - - protected int getMaxInstanceId() - { - return MAX_INSTANCE_ID; - } - - protected int findInstanceIdInfo(String s) - { - int id; -// #generated# Last update: 2007-05-09 08:15:15 EDT - L0: { id = 0; String X = null; int c; - L: switch (s.length()) { - case 4: X="name";id=Id_name; break L; - case 5: X="arity";id=Id_arity; break L; - case 6: X="length";id=Id_length; break L; - case 9: c=s.charAt(0); - if (c=='a') { X="arguments";id=Id_arguments; } - else if (c=='p') { X="prototype";id=Id_prototype; } - break L; - } - if (X!=null && X!=s && !X.equals(s)) id = 0; - break L0; - } -// #/generated# -// #/string_id_map# - - if (id == 0) return super.findInstanceIdInfo(s); - - int attr; - switch (id) { - case Id_length: - case Id_arity: - case Id_name: - attr = DONTENUM | READONLY | PERMANENT; - break; - case Id_prototype: - attr = prototypePropertyAttributes; - break; - case Id_arguments: - attr = DONTENUM | PERMANENT; - break; - default: throw new IllegalStateException(); - } - return instanceIdInfo(attr, id); - } - - protected String getInstanceIdName(int id) - { - switch (id) { - case Id_length: return "length"; - case Id_arity: return "arity"; - case Id_name: return "name"; - case Id_prototype: return "prototype"; - case Id_arguments: return "arguments"; - } - return super.getInstanceIdName(id); - } - - protected Object getInstanceIdValue(int id) - { - switch (id) { - case Id_length: return ScriptRuntime.wrapInt(getLength()); - case Id_arity: return ScriptRuntime.wrapInt(getArity()); - case Id_name: return getFunctionName(); - case Id_prototype: return getPrototypeProperty(); - case Id_arguments: return getArguments(); - } - return super.getInstanceIdValue(id); - } - - protected void setInstanceIdValue(int id, Object value) - { - if (id == Id_prototype) { - if ((prototypePropertyAttributes & READONLY) == 0) { - prototypeProperty = (value != null) - ? value : UniqueTag.NULL_VALUE; - } - return; - } else if (id == Id_arguments) { - if (value == NOT_FOUND) { - // This should not be called since "arguments" is PERMANENT - Kit.codeBug(); - } - defaultPut("arguments", value); - } - super.setInstanceIdValue(id, value); - } - - protected void fillConstructorProperties(IdFunctionObject ctor) - { - // Fix up bootstrapping problem: getPrototype of the IdFunctionObject - // can not return Function.prototype because Function object is not - // yet defined. - ctor.setPrototype(this); - super.fillConstructorProperties(ctor); - } - - protected void initPrototypeId(int id) - { - String s; - int arity; - switch (id) { - case Id_constructor: arity=1; s="constructor"; break; - case Id_toString: arity=1; s="toString"; break; - case Id_toSource: arity=1; s="toSource"; break; - case Id_apply: arity=2; s="apply"; break; - case Id_call: arity=1; s="call"; break; - default: throw new IllegalArgumentException(String.valueOf(id)); - } - initPrototypeMethod(FUNCTION_TAG, id, s, arity); - } - - static boolean isApply(IdFunctionObject f) { - return f.hasTag(FUNCTION_TAG) && f.methodId() == Id_apply; - } - - static boolean isApplyOrCall(IdFunctionObject f) { - if(f.hasTag(FUNCTION_TAG)) { - switch(f.methodId()) { - case Id_apply: - case Id_call: - return true; - } - } - return false; - } - - public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope, - Scriptable thisObj, Object[] args) - { - if (!f.hasTag(FUNCTION_TAG)) { - return super.execIdCall(f, cx, scope, thisObj, args); - } - int id = f.methodId(); - switch (id) { - case Id_constructor: - return jsConstructor(cx, scope, args); - - case Id_toString: { - BaseFunction realf = realFunction(thisObj, f); - int indent = ScriptRuntime.toInt32(args, 0); - return realf.decompile(indent, 0); - } - - case Id_toSource: { - BaseFunction realf = realFunction(thisObj, f); - int indent = 0; - int flags = Decompiler.TO_SOURCE_FLAG; - if (args.length != 0) { - indent = ScriptRuntime.toInt32(args[0]); - if (indent >= 0) { - flags = 0; - } else { - indent = 0; - } - } - return realf.decompile(indent, flags); - } - - case Id_apply: - case Id_call: - return ScriptRuntime.applyOrCall(id == Id_apply, - cx, scope, thisObj, args); - } - throw new IllegalArgumentException(String.valueOf(id)); - } - - private BaseFunction realFunction(Scriptable thisObj, IdFunctionObject f) - { - Object x = thisObj.getDefaultValue(ScriptRuntime.FunctionClass); - if (x instanceof BaseFunction) { - return (BaseFunction)x; - } - throw ScriptRuntime.typeError1("msg.incompat.call", - f.getFunctionName()); - } - - /** - * Make value as DontEnum, DontDelete, ReadOnly - * prototype property of this Function object - */ - public void setImmunePrototypeProperty(Object value) - { - if ((prototypePropertyAttributes & READONLY) != 0) { - throw new IllegalStateException(); - } - prototypeProperty = (value != null) ? value : UniqueTag.NULL_VALUE; - prototypePropertyAttributes = DONTENUM | PERMANENT | READONLY; - } - - protected Scriptable getClassPrototype() - { - Object protoVal = getPrototypeProperty(); - if (protoVal instanceof Scriptable) { - return (Scriptable) protoVal; - } - return getClassPrototype(this, "Object"); - } - - /** - * Should be overridden. - */ - public Object call(Context cx, Scriptable scope, Scriptable thisObj, - Object[] args) - { - return Undefined.instance; - } - - public Scriptable construct(Context cx, Scriptable scope, Object[] args) - { - Scriptable result = createObject(cx, scope); - if (result != null) { - Object val = call(cx, scope, result, args); - if (val instanceof Scriptable) { - result = (Scriptable)val; - } - } else { - Object val = call(cx, scope, null, args); - if (!(val instanceof Scriptable)) { - // It is program error not to return Scriptable from - // the call method if createObject returns null. - throw new IllegalStateException( - "Bad implementaion of call as constructor, name=" - +getFunctionName()+" in "+getClass().getName()); - } - result = (Scriptable)val; - if (result.getPrototype() == null) { - result.setPrototype(getClassPrototype()); - } - if (result.getParentScope() == null) { - Scriptable parent = getParentScope(); - if (result != parent) { - result.setParentScope(parent); - } - } - } - return result; - } - - /** - * Creates new script object. - * The default implementation of {@link #construct} uses the method to - * to get the value for thisObj argument when invoking - * {@link #call}. - * The methos is allowed to return null to indicate that - * {@link #call} will create a new object itself. In this case - * {@link #construct} will set scope and prototype on the result - * {@link #call} unless they are already set. - */ - public Scriptable createObject(Context cx, Scriptable scope) - { - Scriptable newInstance = new NativeObject(); - newInstance.setPrototype(getClassPrototype()); - newInstance.setParentScope(getParentScope()); - return newInstance; - } - - /** - * Decompile the source information associated with this js - * function/script back into a string. - * - * @param indent How much to indent the decompiled result. - * - * @param flags Flags specifying format of decompilation output. - */ - String decompile(int indent, int flags) - { - StringBuffer sb = new StringBuffer(); - boolean justbody = (0 != (flags & Decompiler.ONLY_BODY_FLAG)); - if (!justbody) { - sb.append("function "); - sb.append(getFunctionName()); - sb.append("() {\n\t"); - } - sb.append("[native code, arity="); - sb.append(getArity()); - sb.append("]\n"); - if (!justbody) { - sb.append("}\n"); - } - return sb.toString(); - } - - public int getArity() { return 0; } - - public int getLength() { return 0; } - - public String getFunctionName() - { - return ""; - } - - final Object getPrototypeProperty() { - Object result = prototypeProperty; - if (result == null) { - synchronized (this) { - result = prototypeProperty; - if (result == null) { - setupDefaultPrototype(); - result = prototypeProperty; - } - } - } - else if (result == UniqueTag.NULL_VALUE) { result = null; } - return result; - } - - private void setupDefaultPrototype() - { - NativeObject obj = new NativeObject(); - final int attr = ScriptableObject.DONTENUM; - obj.defineProperty("constructor", this, attr); - // put the prototype property into the object now, then in the - // wacky case of a user defining a function Object(), we don't - // get an infinite loop trying to find the prototype. - prototypeProperty = obj; - Scriptable proto = getObjectPrototype(this); - if (proto != obj) { - // not the one we just made, it must remain grounded - obj.setPrototype(proto); - } - } - - private Object getArguments() - { - // .arguments is deprecated, so we use a slow - // way of getting it that doesn't add to the invocation cost. - // TODO: add warning, error based on version - Object value = defaultGet("arguments"); - if (value != NOT_FOUND) { - // Should after changing .arguments its - // activation still be available during Function call? - // This code assumes it should not: - // defaultGet("arguments") != NOT_FOUND - // means assigned arguments - return value; - } - Context cx = Context.getContext(); - NativeCall activation = ScriptRuntime.findFunctionActivation(cx, this); - return (activation == null) - ? null - : activation.get("arguments", activation); - } - - private static Object jsConstructor(Context cx, Scriptable scope, - Object[] args) - { - int arglen = args.length; - StringBuffer sourceBuf = new StringBuffer(); - - sourceBuf.append("function "); - /* version != 1.2 Function constructor behavior - - * print 'anonymous' as the function name if the - * version (under which the function was compiled) is - * less than 1.2... or if it's greater than 1.2, because - * we need to be closer to ECMA. - */ - if (cx.getLanguageVersion() != Context.VERSION_1_2) { - sourceBuf.append("anonymous"); - } - sourceBuf.append('('); - - // Append arguments as coma separated strings - for (int i = 0; i < arglen - 1; i++) { - if (i > 0) { - sourceBuf.append(','); - } - sourceBuf.append(ScriptRuntime.toString(args[i])); - } - sourceBuf.append(") {"); - if (arglen != 0) { - // append function body - String funBody = ScriptRuntime.toString(args[arglen - 1]); - sourceBuf.append(funBody); - } - sourceBuf.append('}'); - String source = sourceBuf.toString(); - - int[] linep = new int[1]; - String filename = Context.getSourcePositionFromStack(linep); - if (filename == null) { - filename = ""; - linep[0] = 1; - } - - String sourceURI = ScriptRuntime. - makeUrlForGeneratedScript(false, filename, linep[0]); - - Scriptable global = ScriptableObject.getTopLevelScope(scope); - - ErrorReporter reporter; - reporter = DefaultErrorReporter.forEval(cx.getErrorReporter()); - - Evaluator evaluator = Context.createInterpreter(); - if (evaluator == null) { - throw new JavaScriptException("Interpreter not present", - filename, linep[0]); - } - - // Compile with explicit interpreter instance to force interpreter - // mode. - return cx.compileFunction(global, source, evaluator, reporter, - sourceURI, 1, null); - } - - protected int findPrototypeId(String s) - { - int id; -// #string_id_map# -// #generated# Last update: 2007-05-09 08:15:15 EDT - L0: { id = 0; String X = null; int c; - L: switch (s.length()) { - case 4: X="call";id=Id_call; break L; - case 5: X="apply";id=Id_apply; break L; - case 8: c=s.charAt(3); - if (c=='o') { X="toSource";id=Id_toSource; } - else if (c=='t') { X="toString";id=Id_toString; } - break L; - case 11: X="constructor";id=Id_constructor; 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_toString = 2, - Id_toSource = 3, - Id_apply = 4, - Id_call = 5, - - MAX_PROTOTYPE_ID = 5; - -// #/string_id_map# - - private Object prototypeProperty; - // For function object instances, attribute is PERMANENT; see ECMA 15.3.5.2 - private int prototypePropertyAttributes = PERMANENT; -} - -- cgit v1.2.3-1-g7c22