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diff --git a/kjs/function.cpp b/kjs/function.cpp
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+++ b/kjs/function.cpp
@@ -0,0 +1,1046 @@
+// -*- c-basic-offset: 2 -*-
+/*
+ * This file is part of the KDE libraries
+ * Copyright (C) 1999-2002 Harri Porten (porten@kde.org)
+ * Copyright (C) 2001,2003 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2003 Apple Computer, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "function.h"
+
+#include "internal.h"
+#include "function_object.h"
+#include "lexer.h"
+#include "nodes.h"
+#include "operations.h"
+#include "debugger.h"
+#include "context.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include <math.h>
+#include <ctype.h>
+
+using namespace KJS;
+
+// ------------------------- URI handling functions ---------------------------
+
+// ECMA 15.1.3
+UString encodeURI(ExecState *exec, UString string, UString unescapedSet)
+{
+ char hexdigits[] = "0123456789ABCDEF";
+ int encbufAlloc = 2;
+ UChar *encbuf = (UChar*)malloc(encbufAlloc*sizeof(UChar));
+ int encbufLen = 0;
+
+ for (int k = 0; k < string.size(); k++) {
+
+ UChar C = string[k];
+ if (unescapedSet.find(C) >= 0) {
+ if (encbufLen+1 >= encbufAlloc)
+ encbuf = (UChar*)realloc(encbuf,(encbufAlloc *= 2)*sizeof(UChar));
+ encbuf[encbufLen++] = C;
+ }
+ else {
+ unsigned char octets[4];
+ int octets_len = 0;
+ if (C.uc <= 0x007F) {
+ unsigned short zzzzzzz = C.uc;
+ octets[0] = zzzzzzz;
+ octets_len = 1;
+ }
+ else if (C.uc <= 0x07FF) {
+ unsigned short zzzzzz = C.uc & 0x3F;
+ unsigned short yyyyy = (C.uc >> 6) & 0x1F;
+ octets[0] = 0xC0 | yyyyy;
+ octets[1] = 0x80 | zzzzzz;
+ octets_len = 2;
+ }
+ else if (C.uc >= 0xD800 && C.uc <= 0xDBFF) {
+
+ // we need two chars
+ if (k + 1 >= string.size()) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(encbuf);
+ return UString("");
+ }
+
+ unsigned short Cnext = UChar(string[++k]).uc;
+
+ if (Cnext < 0xDC00 || Cnext > 0xDFFF) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(encbuf);
+ return UString("");
+ }
+
+ unsigned short zzzzzz = Cnext & 0x3F;
+ unsigned short yyyy = (Cnext >> 6) & 0x0F;
+ unsigned short xx = C.uc & 0x03;
+ unsigned short wwww = (C.uc >> 2) & 0x0F;
+ unsigned short vvvv = (C.uc >> 6) & 0x0F;
+ unsigned short uuuuu = vvvv+1;
+ octets[0] = 0xF0 | (uuuuu >> 2);
+ octets[1] = 0x80 | ((uuuuu & 0x03) << 4) | wwww;
+ octets[2] = 0x80 | (xx << 4) | yyyy;
+ octets[3] = 0x80 | zzzzzz;
+ octets_len = 4;
+ }
+ else if (C.uc >= 0xDC00 && C.uc <= 0xDFFF) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(encbuf);
+ return UString("");
+ }
+ else {
+ // 0x0800 - 0xD7FF or 0xE000 - 0xFFFF
+ unsigned short zzzzzz = C.uc & 0x3F;
+ unsigned short yyyyyy = (C.uc >> 6) & 0x3F;
+ unsigned short xxxx = (C.uc >> 12) & 0x0F;
+ octets[0] = 0xE0 | xxxx;
+ octets[1] = 0x80 | yyyyyy;
+ octets[2] = 0x80 | zzzzzz;
+ octets_len = 3;
+ }
+
+ while (encbufLen+3*octets_len >= encbufAlloc)
+ encbuf = (UChar*)realloc(encbuf,(encbufAlloc *= 2)*sizeof(UChar));
+
+ for (int j = 0; j < octets_len; j++) {
+ encbuf[encbufLen++] = '%';
+ encbuf[encbufLen++] = hexdigits[octets[j] >> 4];
+ encbuf[encbufLen++] = hexdigits[octets[j] & 0x0F];
+ }
+ }
+ }
+
+ UString encoded(encbuf,encbufLen);
+ free(encbuf);
+ return encoded;
+}
+
+static bool decodeHex(UChar hi, UChar lo, unsigned short *val)
+{
+ *val = 0;
+ if (hi.uc >= '0' && hi.uc <= '9')
+ *val = (hi.uc-'0') << 4;
+ else if (hi.uc >= 'a' && hi.uc <= 'f')
+ *val = 10+(hi.uc-'a') << 4;
+ else if (hi.uc >= 'A' && hi.uc <= 'F')
+ *val = 10+(hi.uc-'A') << 4;
+ else
+ return false;
+
+ if (lo.uc >= '0' && lo.uc <= '9')
+ *val |= (lo.uc-'0');
+ else if (lo.uc >= 'a' && lo.uc <= 'f')
+ *val |= 10+(lo.uc-'a');
+ else if (lo.uc >= 'A' && lo.uc <= 'F')
+ *val |= 10+(lo.uc-'A');
+ else
+ return false;
+
+ return true;
+}
+
+UString decodeURI(ExecState *exec, UString string, UString reservedSet)
+{
+ int decbufAlloc = 2;
+ UChar *decbuf = (UChar*)malloc(decbufAlloc*sizeof(UChar));
+ int decbufLen = 0;
+
+ for (int k = 0; k < string.size(); k++) {
+ UChar C = string[k];
+
+ if (C != UChar('%')) {
+ // Normal unescaped character
+ if (decbufLen+1 >= decbufAlloc)
+ decbuf = (UChar*)realloc(decbuf,(decbufAlloc *= 2)*sizeof(UChar));
+ decbuf[decbufLen++] = C;
+ continue;
+ }
+
+ // We have % escape sequence... expect at least 2 more characters
+ int start = k;
+ if (k+2 >= string.size()) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(decbuf);
+ return UString("");
+ }
+
+ unsigned short B;
+ if (!decodeHex(string[k+1],string[k+2],&B)) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(decbuf);
+ return UString("");
+ }
+
+ k += 2;
+
+ if (decbufLen+2 >= decbufAlloc)
+ decbuf = (UChar*)realloc(decbuf,(decbufAlloc *= 2)*sizeof(UChar));
+
+ if ((B & 0x80) == 0) {
+ // Single-byte character
+ C = B;
+ }
+ else {
+ // Multi-byte character
+ int n = 0;
+ while (((B << n) & 0x80) != 0)
+ n++;
+
+ if (n < 2 || n > 4) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(decbuf);
+ return UString("");
+ }
+
+ if (k+3*(n-1) >= string.size()) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(decbuf);
+ return UString("");
+ }
+
+ unsigned short octets[4];
+ octets[0] = B;
+ for (int j = 1; j < n; j++) {
+ k++;
+ if ((UChar(string[k]) != UChar('%')) ||
+ !decodeHex(string[k+1],string[k+2],&B) ||
+ ((B & 0xC0) != 0x80)) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(decbuf);
+ return UString("");
+ }
+
+ k += 2;
+ octets[j] = B;
+ }
+
+ // UTF-8 transform
+ const unsigned long replacementChar = 0xFFFD;
+ unsigned long V;
+ if (n == 2) {
+ unsigned long yyyyy = octets[0] & 0x1F;
+ unsigned long zzzzzz = octets[1] & 0x3F;
+ V = (yyyyy << 6) | zzzzzz;
+ // 2-byte sequence overlong for this value?
+ if (V < 0x80)
+ V = replacementChar;
+ C = UChar((unsigned short)V);
+ }
+ else if (n == 3) {
+ unsigned long xxxx = octets[0] & 0x0F;
+ unsigned long yyyyyy = octets[1] & 0x3F;
+ unsigned long zzzzzz = octets[2] & 0x3F;
+ V = (xxxx << 12) | (yyyyyy << 6) | zzzzzz;
+ // 3-byte sequence overlong for this value,
+ // an invalid value or UTF-16 surrogate?
+ if (V < 0x800 || V == 0xFFFE || V == 0xFFFF ||
+ (V >= 0xD800 && V <= 0xDFFF))
+ V = replacementChar;
+ C = UChar((unsigned short)V);
+ }
+ else {
+ assert(n == 4);
+ unsigned long uuuuu = ((octets[0] & 0x07) << 2) | ((octets[1] >> 4) & 0x03);
+ unsigned long vvvv = uuuuu-1;
+ if (vvvv > 0x0F) {
+ Object err = Error::create(exec,URIError);
+ exec->setException(err);
+ free(decbuf);
+ return UString("");
+ }
+ unsigned long wwww = octets[1] & 0x0F;
+ unsigned long xx = (octets[2] >> 4) & 0x03;
+ unsigned long yyyy = octets[2] & 0x0F;
+ unsigned long zzzzzz = octets[3] & 0x3F;
+ unsigned short H = 0xD800 | (vvvv << 6) | (wwww << 2) | xx;
+ unsigned short L = 0xDC00 | (yyyy << 6) | zzzzzz;
+ decbuf[decbufLen++] = UChar(H);
+ decbuf[decbufLen++] = UChar(L);
+ continue;
+ }
+ }
+
+ if (reservedSet.find(C) < 0) {
+ decbuf[decbufLen++] = C;
+ }
+ else {
+ // copy unencoded sequence
+ while (decbufLen+k-start+1 >= decbufAlloc)
+ decbuf = (UChar*)realloc(decbuf,(decbufAlloc *= 2)*sizeof(UChar));
+ for (int p = start; p <= k; p++)
+ decbuf[decbufLen++] = string[p];
+ }
+ }
+
+ UString decoded(decbuf,decbufLen);
+ free(decbuf);
+ return decoded;
+}
+
+static UString uriReserved = ";/?:@&=+$,";
+static UString uriAlpha = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+static UString DecimalDigit = "0123456789";
+static UString uriMark = "-_.!~*'()";
+static UString uriUnescaped = uriAlpha+DecimalDigit+uriMark;
+
+// ----------------------------- FunctionImp ----------------------------------
+
+const ClassInfo FunctionImp::info = {"Function", &InternalFunctionImp::info, 0, 0};
+
+namespace KJS {
+ class Parameter {
+ public:
+ Parameter(const Identifier &n) : name(n), next(0L) { }
+ ~Parameter() { delete next; }
+ Identifier name;
+ Parameter *next;
+ };
+}
+
+FunctionImp::FunctionImp(ExecState *exec, const Identifier &n)
+ : InternalFunctionImp(
+ static_cast<FunctionPrototypeImp*>(exec->lexicalInterpreter()->builtinFunctionPrototype().imp())
+ ), param(0L), line0(-1), line1(-1), sid(-1)
+{
+ //fprintf(stderr,"FunctionImp::FunctionImp this=%p\n");
+ ident = n;
+}
+
+FunctionImp::~FunctionImp()
+{
+ delete param;
+}
+
+bool FunctionImp::implementsCall() const
+{
+ return true;
+}
+
+Value FunctionImp::call(ExecState *exec, Object &thisObj, const List &args)
+{
+ Object &globalObj = exec->dynamicInterpreter()->globalObject();
+
+ // enter a new execution context
+ ContextImp ctx(globalObj, exec->dynamicInterpreter()->imp(), thisObj, sid, codeType(),
+ exec->context().imp(), this, &args);
+ ExecState newExec(exec->dynamicInterpreter(), &ctx);
+ newExec.setException(exec->exception()); // could be null
+
+ // assign user supplied arguments to parameters
+ processParameters(&newExec, args);
+ // add variable declarations (initialized to undefined)
+ processVarDecls(&newExec);
+
+ ctx.setLines(line0,line0);
+ Debugger *dbg = exec->interpreter()->imp()->debugger();
+ if (dbg) {
+ if (!dbg->enterContext(&newExec)) {
+ // debugger requested we stop execution
+ dbg->imp()->abort();
+ return Undefined();
+ }
+ }
+
+ Completion comp = execute(&newExec);
+
+ ctx.setLines(line1,line1);
+ if (dbg) {
+ Object func(this);
+ // ### lineno is inaccurate - we really want the end of the function _body_ here
+ // line1 is suppoed to be the end of the function start, just before the body
+ if (!dbg->exitContext(&newExec,comp)) {
+ // debugger requested we stop execution
+ dbg->imp()->abort();
+ return Undefined();
+ }
+ }
+
+ // if an exception occurred, propogate it back to the previous execution object
+ if (newExec.hadException())
+ exec->setException(newExec.exception());
+
+#ifdef KJS_VERBOSE
+ CString n = ident.isEmpty() ? CString("(internal)") : ident.ustring().cstring();
+ if (comp.complType() == Throw) {
+ n += " throws";
+ printInfo(exec, n.c_str(), comp.value());
+ } else if (comp.complType() == ReturnValue) {
+ n += " returns";
+ printInfo(exec, n.c_str(), comp.value());
+ } else
+ fprintf(stderr, "%s returns: undefined\n", n.c_str());
+#endif
+
+ if (comp.complType() == Throw) {
+ exec->setException(comp.value());
+ return comp.value();
+ }
+ else if (comp.complType() == ReturnValue)
+ return comp.value();
+ else
+ return Undefined();
+}
+
+void FunctionImp::addParameter(const Identifier &n)
+{
+ Parameter **p = &param;
+ while (*p)
+ p = &(*p)->next;
+
+ *p = new Parameter(n);
+}
+
+Identifier FunctionImp::parameterProperty(int index) const
+{
+ // Find the property name corresponding to the given parameter
+ int pos = 0;
+ Parameter *p;
+ for (p = param; p && pos < index; p = p->next)
+ pos++;
+
+ if (!p)
+ return Identifier::null();
+
+ // Are there any subsequent parameters with the same name?
+ Identifier name = p->name;
+ for (p = p->next; p; p = p->next)
+ if (p->name == name)
+ return Identifier::null();
+
+ return name;
+}
+
+UString FunctionImp::parameterString() const
+{
+ UString s;
+ const Parameter *p = param;
+ while (p) {
+ if (!s.isEmpty())
+ s += ", ";
+ s += p->name.ustring();
+ p = p->next;
+ }
+
+ return s;
+}
+
+
+// ECMA 10.1.3q
+void FunctionImp::processParameters(ExecState *exec, const List &args)
+{
+ Object variable = exec->context().imp()->variableObject();
+
+#ifdef KJS_VERBOSE
+ fprintf(stderr, "---------------------------------------------------\n"
+ "processing parameters for %s call\n",
+ name().isEmpty() ? "(internal)" : name().ascii());
+#endif
+
+ if (param) {
+ ListIterator it = args.begin();
+ Parameter *p = param;
+ while (p) {
+ if (it != args.end()) {
+#ifdef KJS_VERBOSE
+ fprintf(stderr, "setting parameter %s ", p->name.ascii());
+ printInfo(exec,"to", *it);
+#endif
+ variable.put(exec, p->name, *it);
+ it++;
+ } else
+ variable.put(exec, p->name, Undefined());
+ p = p->next;
+ }
+ }
+#ifdef KJS_VERBOSE
+ else {
+ for (int i = 0; i < args.size(); i++)
+ printInfo(exec,"setting argument", args[i]);
+ }
+#endif
+}
+
+void FunctionImp::processVarDecls(ExecState * /*exec*/)
+{
+}
+
+Value FunctionImp::get(ExecState *exec, const Identifier &propertyName) const
+{
+ // Find the arguments from the closest context.
+ if (propertyName == argumentsPropertyName) {
+// delme
+ ContextImp *context = exec->context().imp();
+// fixme
+// ContextImp *context = exec->_context;
+ while (context) {
+ if (context->function() == this)
+ return static_cast<ActivationImp *>
+ (context->activationObject())->get(exec, propertyName);
+ context = context->callingContext();
+ }
+ return Null();
+ }
+
+ // Compute length of parameters.
+ if (propertyName == lengthPropertyName) {
+ const Parameter * p = param;
+ int count = 0;
+ while (p) {
+ ++count;
+ p = p->next;
+ }
+ return Number(count);
+ }
+
+ if (propertyName == callerPropertyName) {
+ ContextImp *context = exec->context().imp();
+ while (context) {
+ if (context->function() == this) {
+ ContextImp *cc = context->callingContext();
+ if (cc && cc->function())
+ return Value(cc->function());
+ else
+ return Null();
+ }
+ context = context->callingContext();
+ }
+ return Null();
+ }
+
+ return InternalFunctionImp::get(exec, propertyName);
+}
+
+void FunctionImp::put(ExecState *exec, const Identifier &propertyName, const Value &value, int attr)
+{
+ if (propertyName == argumentsPropertyName || propertyName == lengthPropertyName)
+ return;
+ InternalFunctionImp::put(exec, propertyName, value, attr);
+}
+
+bool FunctionImp::hasProperty(ExecState *exec, const Identifier &propertyName) const
+{
+ if (propertyName == argumentsPropertyName || propertyName == lengthPropertyName)
+ return true;
+ return InternalFunctionImp::hasProperty(exec, propertyName);
+}
+
+bool FunctionImp::deleteProperty(ExecState *exec, const Identifier &propertyName)
+{
+ if (propertyName == argumentsPropertyName || propertyName == lengthPropertyName)
+ return false;
+ return InternalFunctionImp::deleteProperty(exec, propertyName);
+}
+
+// ------------------------------ DeclaredFunctionImp --------------------------
+
+// ### is "Function" correct here?
+const ClassInfo DeclaredFunctionImp::info = {"Function", &FunctionImp::info, 0, 0};
+
+DeclaredFunctionImp::DeclaredFunctionImp(ExecState *exec, const Identifier &n,
+ FunctionBodyNode *b, const ScopeChain &sc)
+ : FunctionImp(exec,n), body(b)
+{
+ Value protect(this);
+ body->ref();
+ setScope(sc);
+ line0 = body->firstLine();
+ line1 = body->lastLine();
+ sid = body->sourceId();
+}
+
+DeclaredFunctionImp::~DeclaredFunctionImp()
+{
+ if ( body->deref() )
+ delete body;
+}
+
+bool DeclaredFunctionImp::implementsConstruct() const
+{
+ return true;
+}
+
+// ECMA 13.2.2 [[Construct]]
+Object DeclaredFunctionImp::construct(ExecState *exec, const List &args)
+{
+ Object proto;
+ Value p = get(exec,prototypePropertyName);
+ if (p.type() == ObjectType)
+ proto = Object(static_cast<ObjectImp*>(p.imp()));
+ else
+ proto = exec->lexicalInterpreter()->builtinObjectPrototype();
+
+ Object obj(new ObjectImp(proto));
+
+ Value res = call(exec,obj,args);
+
+ if (res.type() == ObjectType)
+ return Object::dynamicCast(res);
+ else
+ return obj;
+}
+
+Completion DeclaredFunctionImp::execute(ExecState *exec)
+{
+ Completion result = body->execute(exec);
+
+ if (result.complType() == Throw || result.complType() == ReturnValue)
+ return result;
+ return Completion(Normal, Undefined()); // TODO: or ReturnValue ?
+}
+
+void DeclaredFunctionImp::processVarDecls(ExecState *exec)
+{
+ body->processVarDecls(exec);
+}
+
+// ------------------------------- ShadowImp -----------------------------------
+
+namespace KJS {
+
+// Acts as a placeholder value to indicate that the actual value is kept
+// in the activation object
+class ShadowImp : public ObjectImp {
+public:
+ ShadowImp(ObjectImp *_obj, Identifier _prop) : obj(_obj), prop(_prop) {}
+ virtual void mark();
+
+ virtual const ClassInfo *classInfo() const { return &info; }
+ static const ClassInfo info;
+
+ ObjectImp *obj;
+ Identifier prop;
+};
+
+/*KDE_NOEXPORT*/ const ClassInfo ShadowImp::info = {"Shadow", 0, 0, 0};
+
+void ShadowImp::mark()
+{
+ ObjectImp::mark();
+ if (!obj->marked())
+ obj->mark();
+}
+
+}
+
+// ------------------------------ ArgumentsImp ---------------------------------
+
+const ClassInfo ArgumentsImp::info = {"Arguments", 0, 0, 0};
+
+// ECMA 10.1.8
+ArgumentsImp::ArgumentsImp(ExecState *exec, FunctionImp *func, const List &args,
+ ActivationImp *act)
+ : ObjectImp(exec->lexicalInterpreter()->builtinObjectPrototype()), activation(act)
+{
+ Value protect(this);
+ putDirect(calleePropertyName, func, DontEnum);
+ putDirect(lengthPropertyName, args.size(), DontEnum);
+ if (!args.isEmpty()) {
+ ListIterator arg = args.begin();
+ for (int i = 0; arg != args.end(); arg++, i++) {
+ Identifier prop = func->parameterProperty(i);
+ if (!prop.isEmpty()) {
+ Object shadow(new ShadowImp(act,prop));
+ ObjectImp::put(exec,Identifier::from(i), shadow, DontEnum);
+ }
+ else {
+ ObjectImp::put(exec,Identifier::from(i), *arg, DontEnum);
+ }
+ }
+ }
+}
+
+void ArgumentsImp::mark()
+{
+ ObjectImp::mark();
+ if (!activation->marked())
+ activation->mark();
+}
+
+Value ArgumentsImp::get(ExecState *exec, const Identifier &propertyName) const
+{
+ Value val = ObjectImp::get(exec,propertyName);
+ assert(SimpleNumber::is(val.imp()) || !val.imp()->isDestroyed());
+ Object obj = Object::dynamicCast(val);
+ if (obj.isValid() && obj.inherits(&ShadowImp::info)) {
+ ShadowImp *shadow = static_cast<ShadowImp*>(val.imp());
+ return activation->get(exec,shadow->prop);
+ }
+ else {
+ return val;
+ }
+}
+
+void ArgumentsImp::put(ExecState *exec, const Identifier &propertyName,
+ const Value &value, int attr)
+{
+ Value val = ObjectImp::get(exec,propertyName);
+ Object obj = Object::dynamicCast(val);
+ if (obj.isValid() && obj.inherits(&ShadowImp::info)) {
+ ShadowImp *shadow = static_cast<ShadowImp*>(val.imp());
+ activation->put(exec,shadow->prop,value,attr);
+ }
+ else {
+ ObjectImp::put(exec,propertyName,value,attr);
+ }
+}
+
+// ------------------------------ ActivationImp --------------------------------
+
+const ClassInfo ActivationImp::info = {"Activation", 0, 0, 0};
+
+// ECMA 10.1.6
+ActivationImp::ActivationImp(FunctionImp *function, const List &arguments)
+ : _function(function), _arguments(true), _argumentsObject(0)
+{
+ _arguments = arguments.copy();
+ // FIXME: Do we need to support enumerating the arguments property?
+}
+
+Value ActivationImp::get(ExecState *exec, const Identifier &propertyName) const
+{
+ if (propertyName == argumentsPropertyName) {
+ // check for locally declared arguments property
+ ValueImp *v = getDirect(propertyName);
+ if (v)
+ return Value(v);
+
+ // default: return builtin arguments array
+ if (!_argumentsObject)
+ _argumentsObject = new ArgumentsImp(exec, _function, _arguments, const_cast<ActivationImp*>(this));
+ return Value(_argumentsObject);
+ }
+ return ObjectImp::get(exec, propertyName);
+}
+
+bool ActivationImp::hasProperty(ExecState *exec, const Identifier &propertyName) const
+{
+ if (propertyName == argumentsPropertyName)
+ return true;
+ return ObjectImp::hasProperty(exec, propertyName);
+}
+
+bool ActivationImp::deleteProperty(ExecState *exec, const Identifier &propertyName)
+{
+ if (propertyName == argumentsPropertyName)
+ return false;
+ return ObjectImp::deleteProperty(exec, propertyName);
+}
+
+void ActivationImp::mark()
+{
+ ObjectImp::mark();
+ if (_function && !_function->marked())
+ _function->mark();
+ _arguments.mark();
+ if (_argumentsObject && !_argumentsObject->marked())
+ _argumentsObject->mark();
+}
+
+// ------------------------------ GlobalFunc -----------------------------------
+
+
+GlobalFuncImp::GlobalFuncImp(ExecState * /*exec*/, FunctionPrototypeImp *funcProto,
+ int i, int len, const Identifier &_ident)
+ : InternalFunctionImp(funcProto), id(i)
+{
+ Value protect(this);
+ putDirect(lengthPropertyName, len, DontDelete|ReadOnly|DontEnum);
+ ident = _ident;
+}
+
+CodeType GlobalFuncImp::codeType() const
+{
+ return id == Eval ? EvalCode : codeType();
+}
+
+bool GlobalFuncImp::implementsCall() const
+{
+ return true;
+}
+
+Value GlobalFuncImp::call(ExecState *exec, Object &thisObj, const List &args)
+{
+ Value res;
+
+ static const char do_not_escape[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789"
+ "*+-./@_";
+
+ switch (id) {
+ case Eval: { // eval()
+ Value x = args[0];
+ if (x.type() != StringType)
+ return x;
+ else {
+ UString s = x.toString(exec);
+
+ int errLine;
+ UString errMsg;
+#ifdef KJS_VERBOSE
+ fprintf(stderr, "eval(): %s\n", s.ascii());
+#endif
+ SourceCode *source;
+ FunctionBodyNode *progNode = Parser::parse(s.data(),s.size(),&source,&errLine,&errMsg);
+
+ // notify debugger that source has been parsed
+ Debugger *dbg = exec->interpreter()->imp()->debugger();
+ if (dbg) {
+ bool cont = dbg->sourceParsed(exec,source->sid,s,errLine);
+ if (!cont) {
+ source->deref();
+ dbg->imp()->abort();
+ if (progNode)
+ delete progNode;
+ return Undefined();
+ }
+ }
+
+ exec->interpreter()->imp()->addSourceCode(source);
+
+ // no program node means a syntax occurred
+ if (!progNode) {
+ Object err = Error::create(exec,SyntaxError,errMsg.ascii(),errLine);
+ err.put(exec,"sid",Number(source->sid));
+ exec->setException(err);
+ source->deref();
+ return err;
+ }
+
+ source->deref();
+ progNode->ref();
+
+ // enter a new execution context
+ ContextImp ctx(exec->dynamicInterpreter()->globalObject(),
+ exec->dynamicInterpreter()->imp(),
+ thisObj,
+ source->sid,
+ EvalCode,
+ exec->context().imp());
+
+ ExecState newExec(exec->dynamicInterpreter(), &ctx);
+ newExec.setException(exec->exception()); // could be null
+
+ ctx.setLines(progNode->firstLine(),progNode->firstLine());
+ if (dbg) {
+ if (!dbg->enterContext(&newExec)) {
+ // debugger requested we stop execution
+ dbg->imp()->abort();
+
+ if (progNode->deref())
+ delete progNode;
+ return Undefined();
+ }
+ }
+
+ // execute the code
+ progNode->processVarDecls(&newExec);
+ Completion c = progNode->execute(&newExec);
+
+ res = Undefined();
+
+ ctx.setLines(progNode->lastLine(),progNode->lastLine());
+ if (dbg && !dbg->exitContext(&newExec,c))
+ // debugger requested we stop execution
+ dbg->imp()->abort();
+ else if (newExec.hadException()) // propagate back to parent context
+ exec->setException(newExec.exception());
+ else if (c.complType() == Throw)
+ exec->setException(c.value());
+ else if (c.isValueCompletion())
+ res = c.value();
+
+ if (progNode->deref())
+ delete progNode;
+
+ return res;
+ }
+ break;
+ }
+ case ParseInt: { // ECMA 15.1.2.2
+ CString cstr = args[0].toString(exec).cstring();
+ const char* startptr = cstr.c_str();
+ while ( *startptr && isspace( *startptr ) ) // first, skip leading spaces
+ ++startptr;
+
+ int base = 0;
+ if (args.size() > 1)
+ base = args[1].toInt32(exec);
+
+ double sign = 1;
+ if (*startptr == '-') {
+ sign = -1;
+ startptr++;
+ }
+ else if (*startptr == '+') {
+ sign = 1;
+ startptr++;
+ }
+
+ bool leading0 = false;
+ if ((base == 0 || base == 16) &&
+ (*startptr == '0' && (startptr[1] == 'x' || startptr[1] == 'X'))) {
+ startptr += 2;
+ base = 16;
+ }
+ else if (base == 0 && *startptr == '0') {
+ base = 8;
+ leading0 = true;
+ startptr++;
+ }
+ else if (base == 0) {
+ base = 10;
+ }
+
+ if (base < 2 || base > 36) {
+ res = Number(NaN);
+ }
+ else {
+ long double val = 0;
+ int index = 0;
+ for (; *startptr; startptr++) {
+ int thisval = -1;
+ if (*startptr >= '0' && *startptr <= '9')
+ thisval = *startptr - '0';
+ else if (*startptr >= 'a' && *startptr <= 'z')
+ thisval = 10 + *startptr - 'a';
+ else if (*startptr >= 'A' && *startptr <= 'Z')
+ thisval = 10 + *startptr - 'A';
+
+ if (thisval < 0 || thisval >= base)
+ break;
+
+ val *= base;
+ val += thisval;
+ index++;
+ }
+
+ if (index == 0 && !leading0)
+ res = Number(NaN);
+ else
+ res = Number(double(val)*sign);
+ }
+ break;
+ }
+ case ParseFloat: {
+ UString str = args[0].toString(exec);
+ // don't allow hex numbers here
+ bool isHex = false;
+ if (str.is8Bit()) {
+ const char *c = str.ascii();
+ while (isspace(*c))
+ c++;
+ isHex = (c[0] == '0' && (c[1] == 'x' || c[1] == 'X'));
+ }
+ if (isHex)
+ res = Number(0);
+ else
+ res = Number(str.toDouble( true /*tolerant*/, false ));
+ }
+ break;
+ case IsNaN:
+ res = Boolean(isNaN(args[0].toNumber(exec)));
+ break;
+ case IsFinite: {
+ double n = args[0].toNumber(exec);
+ res = Boolean(!isNaN(n) && !isInf(n));
+ break;
+ }
+ case DecodeURI:
+ res = String(decodeURI(exec,args[0].toString(exec),uriReserved+"#"));
+ break;
+ case DecodeURIComponent:
+ res = String(decodeURI(exec,args[0].toString(exec),""));
+ break;
+ case EncodeURI:
+ res = String(encodeURI(exec,args[0].toString(exec),uriReserved+uriUnescaped+"#"));
+ break;
+ case EncodeURIComponent:
+ res = String(encodeURI(exec,args[0].toString(exec),uriUnescaped));
+ break;
+ case Escape: {
+ UString r = "", s, str = args[0].toString(exec);
+ const UChar *c = str.data();
+ for (int k = 0; k < str.size(); k++, c++) {
+ int u = c->uc;
+ if (u > 255) {
+ char tmp[7];
+ sprintf(tmp, "%%u%04X", u);
+ s = UString(tmp);
+ } else if (u != 0 && strchr(do_not_escape, (char)u)) {
+ s = UString(c, 1);
+ } else {
+ char tmp[4];
+ sprintf(tmp, "%%%02X", u);
+ s = UString(tmp);
+ }
+ r += s;
+ }
+ res = String(r);
+ break;
+ }
+ case UnEscape: {
+ UString s = "", str = args[0].toString(exec);
+ int k = 0, len = str.size();
+ while (k < len) {
+ const UChar *c = str.data() + k;
+ UChar u;
+ if (*c == UChar('%') && k <= len - 6 && *(c+1) == UChar('u')) {
+ if (Lexer::isHexDigit((c+2)->uc) && Lexer::isHexDigit((c+3)->uc) &&
+ Lexer::isHexDigit((c+4)->uc) && Lexer::isHexDigit((c+5)->uc)) {
+ u = Lexer::convertUnicode((c+2)->uc, (c+3)->uc,
+ (c+4)->uc, (c+5)->uc);
+ c = &u;
+ k += 5;
+ }
+ } else if (*c == UChar('%') && k <= len - 3 &&
+ Lexer::isHexDigit((c+1)->uc) && Lexer::isHexDigit((c+2)->uc)) {
+ u = UChar(Lexer::convertHex((c+1)->uc, (c+2)->uc));
+ c = &u;
+ k += 2;
+ }
+ k++;
+ s += UString(c, 1);
+ }
+ res = String(s);
+ break;
+ }
+ case KJSPrint:
+#ifndef NDEBUG
+ puts(args[0].toString(exec).ascii());
+#endif
+ break;
+ }
+
+ return res;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-22 22:12:00 +0000