+++ /dev/null
-/**
- * @file ejsVar.c
- * @brief Mbedthis Portable Runtime Universal Variable Type
- */
-
-/*
- * @copy default
- *
- * Copyright (c) Mbedthis Software LLC, 2003-2006. All Rights Reserved.
- * Copyright (c) Michael O'Brien, 1994-1995. All Rights Reserved.
- *
- * This software is distributed under commercial and open source licenses.
- * You may use the GPL open source license described below or you may acquire
- * a commercial license from Mbedthis Software. You agree to be fully bound
- * by the terms of either license. Consult the LICENSE.TXT distributed with
- * this software for full details.
- *
- * This software is open source; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. See the GNU General Public License for more
- * details at: http://www.mbedthis.com/downloads/gplLicense.html
- *
- * This program is distributed WITHOUT ANY WARRANTY; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * This GPL license does NOT permit incorporating this software into
- * proprietary programs. If you are unable to comply with the GPL, you must
- * acquire a commercial license to use this software. Commercial licenses
- * for this software and support services are available from Mbedthis
- * Software at http://www.mbedthis.com
- *
- * @end
- */
-
-/******************************* Documentation ********************************/
-
-/*
- * This module is NOT multithreaded.
- *
- * Properties are variables that are stored in an object type variable.
- * Properties can be primitive data types, other objects or methods.
- * Properties are indexed by a character name.
- */
-
-/********************************** Includes **********************************/
-
-#include "ejs.h"
-
-/***************************** Forward Declarations ***************************/
-
-static EjsProperty *allocProperty(Ejs *ep, EjsVar *op, const char *property,
- int propertyIndex, EjsProperty *last);
-static EjsVar *copyVar(EJS_LOC_DEC(ep, loc), EjsVar *dest,
- const EjsVar *src, EjsCopyDepth copyDepth);
-static EjsObj *createObj(EJS_LOC_DEC(ep, loc));
-static char *getNextVarToken(char **next, char *tokBuf, int tokBufLen);
-static int hash(const char *property);
-static void unlinkProperty(EjsObj *obj, EjsPropLink *propLink);
-static void linkPropertyBefore(EjsObj *obj, EjsPropLink *at,
- EjsPropLink *propLink);
-static int sortAllProperties(Ejs *ep, EjsProperty *p1,
- EjsProperty *p2, const char *propertyName, int order);
-static int sortByProperty(Ejs *ep, EjsProperty *p1, EjsProperty *p2,
- const char *propertyName, int order);
-static int dupString(MPR_LOC_DEC(ctx, loc), uchar **dest,
- const void *src, int nbytes);
-#if UNUSED && KEEP
-static void linkPropertyAfter(EjsObj *obj, EjsPropLink *at,
- EjsPropLink *propLink);
-#endif
-
-static EjsProperty *hashLookup(EjsObj *obj, const char *property,
- int *propertyIndex, EjsProperty **hashTail);
-
-/******************************************************************************/
-/********************************** Var Routines ******************************/
-/******************************************************************************/
-
-EjsType ejsGetVarType(EjsVar *vp)
-{
- mprAssert(vp);
-
- return vp->type;
-}
-
-/******************************************************************************/
-
-void ejsFreeVar(Ejs *ep, EjsVar *vp)
-{
- if (vp) {
- ejsClearVar(ep, vp);
- ejsFree(ep, vp, EJS_SLAB_VAR);
- }
-}
-
-/******************************************************************************/
-#if UNUSED
-/*
- * Clear the value by freeing any allocated data. This will release objects
- * so that later garbage collection can reclaim storage if there are no other
- * object references.
- */
-
-void ejsZeroVar(Ejs *ep, EjsVar *vp)
-{
- vp->type = EJS_TYPE_UNDEFINED;
- vp->objectState = 0;
- vp->method.body = 0;
- vp->method.args = 0;
- vp->callsSuper = 0;
- vp->ptr.destructor = 0;
- vp->allocatedData = 0;
-}
-
-#endif
-/******************************************************************************/
-/*
- * Clear the value by freeing any allocated data. This will release objects
- * so that later garbage collection can reclaim storage if there are no other
- * object references.
- */
-
-void ejsClearVar(Ejs *ep, EjsVar *vp)
-{
- MprArray *argList;
- int i;
-
- mprAssert(vp);
- mprAssert(ep);
-
- if (! vp->allocatedData) {
- vp->type = EJS_TYPE_UNDEFINED;
- return;
- }
- if (vp->type == EJS_TYPE_UNDEFINED) {
- return;
- }
-
- switch (vp->type) {
- default:
- break;
-
- case EJS_TYPE_STRING:
- mprFree(vp->string);
- vp->string = 0;
- break;
-
- case EJS_TYPE_OBJECT:
- /*
- * Set the "alive" bit so that the GC will cleanup if no
- * other references.
- */
- if (vp->objectState) {
- vp->objectState->alive = 1;
- }
- vp->objectState = 0;
- break;
-
- case EJS_TYPE_METHOD:
- argList = vp->method.args;
- /*
- * MOB OPT -- should be able to do just one mprFree(vp->method.args)
- */
- mprFree(vp->method.body);
- if (argList) {
- for (i = 0; i < argList->length; i++) {
- mprFree(argList->items[i]);
- }
- mprFree(vp->method.args);
- }
- vp->method.args = 0;
- vp->method.body = 0;
- vp->callsSuper = 0;
- break;
-
- case EJS_TYPE_PTR:
- if (vp->ptr.destructor) {
- (vp->ptr.destructor)(ep, vp);
- }
- break;
- }
-
- vp->type = EJS_TYPE_UNDEFINED;
- vp->allocatedData = 0;
-}
-
-/******************************************************************************/
-/*
- * Initialize an undefined value.
- */
-
-EjsVar *ejsCreateUndefinedVar(Ejs *ep)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_UNDEFINED;
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize an null value.
- */
-
-EjsVar *ejsCreateNullVar(Ejs *ep)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_NULL;
- }
- return vp;
-}
-
-/******************************************************************************/
-
-EjsVar *ejsCreateBoolVar(Ejs *ep, int value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_BOOL;
- vp->boolean = value;
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize a C method.
- */
-
-EjsVar *ejsCreateCMethodVar(Ejs *ep, EjsCMethod fn, void *userData, int flags)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_CMETHOD;
- vp->cMethod.fn = fn;
- vp->cMethod.userData = userData;
- vp->flags = flags;
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize a C method.
- */
-
-EjsVar *ejsCreateStringCMethodVar(Ejs *ep, EjsStringCMethod fn,
- void *userData, int flags)
-{
- EjsVar *vp;
-
- mprAssert(ep);
- mprAssert(fn);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_STRING_CMETHOD;
- vp->cMethodWithStrings.fn = fn;
- vp->cMethodWithStrings.userData = userData;
- vp->flags = flags;
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize an opaque pointer.
- */
-
-EjsVar *ejsCreatePtrVar(Ejs *ep, void *ptr, EjsDestructor destructor)
-{
- EjsVar *vp;
-
- mprAssert(ep);
- mprAssert(ptr);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_PTR;
- vp->ptr.userPtr = ptr;
- vp->ptr.destructor = destructor;
- vp->allocatedData = 1;
- }
- return vp;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_FLOATING_POINT
-/*
- * Initialize a floating value.
- */
-
-EjsVar *ejsCreateFloatVar(Ejs *ep, double value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_FLOAT;
- vp->floating = value;
- }
- return vp;
-}
-
-#endif
-/******************************************************************************/
-/*
- * Initialize an integer value.
- */
-
-EjsVar *ejsCreateIntegerVar(Ejs *ep, int value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_INT;
- vp->integer = value;
- }
- return vp;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_INT64
-/*
- * Initialize a 64-bit integer value.
- */
-
-EjsVar *ejsCreateInteger64Var(Ejs *ep, int64 value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_INT64;
- vp->integer64 = value;
- }
- return vp;
-}
-
-#endif /* BLD_FEATURE_INT64 */
-/******************************************************************************/
-/*
- * Initialize an number variable. Type is defined by configure.
- */
-
-EjsVar *ejsCreateNumberVar(Ejs *ep, EjsNum value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- mprAssert(vp);
-
- if (vp) {
- vp->type = BLD_FEATURE_NUM_TYPE_ID;
-#if BLD_FEATURE_NUM_TYPE_ID == EJS_TYPE_INT64
- vp->integer64 = value;
-#elif BLD_FEATURE_NUM_TYPE_ID == EJS_TYPE_FLOAT
- vp->float = value;
-#else
- vp->integer = value;
-#endif
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize a (bare) JavaScript method. args and body can be null.
- */
-
-EjsVar *ejsCreateMethodVar(Ejs *ep, const char *body, MprArray *args, int flags)
-{
- EjsVar *vp;
- int i;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- mprAssert(vp);
-
- if (vp == 0) {
- return 0;
- }
-
- vp->type = EJS_TYPE_METHOD;
-
- vp->allocatedData = 1;
-
- vp->method.args = mprCreateItemArray(ep, EJS_INC_ARGS, EJS_MAX_ARGS);
- if (vp->method.args == 0) {
- mprAssert(vp->method.args);
- ejsFreeVar(ep, vp);
- return 0;
- }
-
- if (args) {
- for (i = 0; i < args->length; i++) {
- mprAddItem(vp->method.args,
- mprStrdup(vp->method.args, mprGetItem(args, i)));
- }
- }
- vp->method.body = mprStrdup(vp->method.args, body);
-
- if (vp->method.body == 0) {
- ejsFreeVar(ep, vp);
- return 0;
- }
- vp->flags = flags;
-
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize an object variable.
- */
-
-EjsVar *ejsCreateObjVarInternal(EJS_LOC_DEC(ep, loc))
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_PASS(ep, loc));
- mprAssert(vp);
-
- if (vp) {
- vp->type = EJS_TYPE_OBJECT;
- vp->objectState = createObj(EJS_LOC_PASS(ep, loc));
- if (vp->objectState == 0) {
- ejsFreeVar(ep, vp);
- return 0;
- }
- vp->allocatedData = 1;
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize a string value.
- */
-
-EjsVar *ejsCreateStringVarInternal(EJS_LOC_DEC(ep, loc), const char *value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_PASS(ep, loc));
- mprAssert(vp);
-
- if (vp) {
- vp->type = EJS_TYPE_STRING;
- vp->string = mprStrdupInternal(EJS_LOC_PASS(ep, loc), value);
- if (vp->string == 0) {
- ejsFreeVar(ep, vp);
- return 0;
- }
- vp->length = strlen(vp->string);
- vp->allocatedData = 1;
- }
- return vp;
-}
-
-/******************************************************************************/
-/*
- * Initialize a binary string value.
- */
-
-EjsVar *ejsCreateBinaryStringVar(Ejs *ep, const uchar *value, int len)
-{
- EjsVar *vp;
-
- mprAssert(ep);
-
- vp = ejsAllocVar(EJS_LOC_ARGS(ep));
- if (vp) {
- vp->type = EJS_TYPE_STRING;
- vp->length = dupString(MPR_LOC_ARGS(ep), &vp->ustring, value, len);
- if (vp->length < 0) {
- ejsFreeVar(ep, vp);
- return 0;
- }
- vp->allocatedData = 1;
- }
- return vp;
-}
-
-/******************************************************************************/
-
-void ejsSetClassName(Ejs *ep, EjsVar *vp, const char *name)
-{
- EjsObj *obj;
-
- if (vp == 0 || !ejsVarIsObject(vp) || vp->objectState == 0) {
- mprAssert(0);
- return;
- }
- obj = vp->objectState;
-
- if (obj->className) {
- mprFree(obj->className);
- }
- obj->className = mprStrdup(ep, name);
-}
-
-/******************************************************************************/
-
-EjsVar *ejsDupVarInternal(EJS_LOC_DEC(ep, loc), EjsVar *src,
- EjsCopyDepth copyDepth)
-{
- EjsVar *vp;
-
- vp = ejsAllocVar(EJS_LOC_PASS(ep, loc));
- if (vp == 0) {
- return 0;
- }
-
- vp->type = EJS_TYPE_UNDEFINED;
-
- return copyVar(EJS_LOC_PASS(ep, loc), vp, src, copyDepth);
-}
-
-/******************************************************************************/
-/*
- * Set a var to a new value
- */
-
-EjsVar *ejsWriteVarInternal(EJS_LOC_DEC(ep, loc), EjsVar *dest,
- const EjsVar *src, EjsCopyDepth copyDepth)
-{
- mprAssert(dest);
- mprAssert(src);
-
- return copyVar(EJS_LOC_PASS(ep, loc), dest, src, copyDepth);
-}
-
-/******************************************************************************/
-/*
- * Set a var using a new bool value
- */
-
-EjsVar *ejsWriteVarAsBoolean(Ejs *ep, EjsVar *dest, int value)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_BOOL;
- dest->boolean = value;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var using a new C Method
- */
-
-EjsVar *ejsWriteVarAsCMethod(Ejs *ep, EjsVar *dest, EjsCMethod fn,
- void *userData, int flags)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_CMETHOD;
- dest->cMethod.fn = fn;
- dest->cMethod.userData = userData;
- dest->flags = flags;
- dest->allocatedData = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_FLOATING_POINT
-/*
- * Set a var using a new float value
- */
-
-EjsVar *ejsWriteVarAsFloat(Ejs *ep, EjsVar *dest, double value)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_FLOAT;
- dest->floating = value;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-#endif
-/******************************************************************************/
-/*
- * Set a var using a new integer value
- */
-
-EjsVar *ejsWriteVarAsInteger(Ejs *ep, EjsVar *dest, int value)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_INT;
- dest->integer = value;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_INT64
-/*
- * Set a var using a new integer value
- */
-
-EjsVar *ejsWriteVarAsInteger64(Ejs *ep, EjsVar *dest, int64 value)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_INT64;
- dest->integer64 = value;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-#endif
-/******************************************************************************/
-/*
- * Set a var using a new Method
- */
-
-EjsVar *ejsWriteVarAsMethod(Ejs *ep, EjsVar *dest, const char *body,
- MprArray *args)
-{
- EjsVar **srcArgs, *arg;
- int i;
-
- mprAssert(ep);
- mprAssert(dest);
- mprAssert(body);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->method.args = mprCreateItemArray(ep, EJS_INC_ARGS, EJS_MAX_ARGS);
- if (dest->method.args == 0) {
- return 0;
- }
-
- dest->type = EJS_TYPE_METHOD;
-
- if (args) {
- srcArgs = (EjsVar**) args->items;
- for (i = 0; i < args->length; i++) {
- arg = ejsDupVar(ep, srcArgs[i], EJS_SHALLOW_COPY);
- if (arg == 0) {
- return 0;
- }
- if (mprAddItem(dest->method.args, arg) < 0) {
- return 0;
- }
- }
- }
-
- dest->method.body = mprStrdup(dest->method.args, body);
- if (dest->method.body == 0) {
- return 0;
- }
-
- dest->allocatedData = 1;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var to null
- */
-
-EjsVar *ejsWriteVarAsNull(Ejs *ep, EjsVar *dest)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_NULL;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var using a new number value
- */
-
-EjsVar *ejsWriteVarAsNumber(Ejs *ep, EjsVar *dest, EjsNum value)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_NUM_VAR;
- dest->ejsNumber = value;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var using a new C Method
- */
-
-EjsVar *ejsWriteVarAsStringCMethod(Ejs *ep, EjsVar *dest, EjsStringCMethod fn,
- void *userData, int flags)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_CMETHOD;
- dest->cMethodWithStrings.fn = fn;
- dest->cMethodWithStrings.userData = userData;
- dest->flags = flags;
- dest->allocatedData = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var using a new string value
- */
-
-EjsVar *ejsWriteVarAsStringInternal(EJS_LOC_DEC(ep, loc), EjsVar *dest,
- const char *value)
-{
- mprAssert(dest);
- mprAssert(value);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->string = mprStrdupInternal(EJS_LOC_PASS(ep, loc), value);
- if (dest->string == 0) {
- return 0;
- }
-
- dest->length = strlen(dest->string);
-
- dest->type = EJS_TYPE_STRING;
- dest->allocatedData = 1;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var using a new string value
- */
-
-EjsVar *ejsWriteVarAsBinaryString(Ejs *ep, EjsVar *dest, const uchar *value,
- int len)
-{
- mprAssert(dest);
- mprAssert(value);
-
- ejsClearVar(ep, dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->length = dupString(MPR_LOC_ARGS(ep), &dest->ustring, value, len);
- if (dest->length < 0) {
- return 0;
- }
-
- dest->type = EJS_TYPE_STRING;
- dest->allocatedData = 1;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Set a var to undefined
- */
-
-EjsVar *ejsWriteVarAsUndefined(Ejs *ep, EjsVar *dest)
-{
- mprAssert(dest);
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->type = EJS_TYPE_UNDEFINED;
- dest->allocatedData = 0;
- dest->flags = 0;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Convert a value to a text based representation of its value
- * If you provide a format, you MUST ensure you know the type.
- * Caller must free the result.
- */
-
-char *ejsFormatVar(Ejs *ep, const char *fmt, EjsVar *vp)
-{
- char *buf, *src, *value, *allocValue;
- uchar *ubuf;
- int len;
-
- buf = 0;
- allocValue = 0;
- value = 0;
-
- switch (vp->type) {
- case EJS_TYPE_UNDEFINED:
- value = "undefined";
- break;
-
- case EJS_TYPE_NULL:
- value = "null";
- break;
-
- case EJS_TYPE_PTR:
- if (fmt == NULL || *fmt == '\0') {
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0,
- "[Opaque Pointer %p]", vp->ptr.userPtr);
- } else {
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, fmt, vp->ptr);
- }
- goto done;
-
- case EJS_TYPE_BOOL:
- value = (vp->boolean) ? "true" : "false";
- break;
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- if (fmt == NULL || *fmt == '\0') {
- fmt = "%f";
- }
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, fmt, vp->floating);
- goto done;
-#endif
-
- case EJS_TYPE_INT:
- if (fmt == NULL || *fmt == '\0') {
- fmt = "%d";
- }
- mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, fmt, vp->integer);
- goto done;
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- if (fmt == NULL || *fmt == '\0') {
- fmt = "%Ld";
- }
- mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, fmt, vp->integer64);
- goto done;
-#endif
-
- case EJS_TYPE_CMETHOD:
- value = "[C Method]";
- break;
-
- case EJS_TYPE_STRING_CMETHOD:
- value = "[C StringMethod]";
- break;
-
- case EJS_TYPE_METHOD:
- value = ejsVarToString(ep, vp);
- break;
-
- case EJS_TYPE_OBJECT:
- value = ejsVarToString(ep, vp);
- break;
-
- case EJS_TYPE_STRING:
- src = vp->string;
- mprAssert(src);
-
- if (fmt && *fmt && src) {
- mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, fmt, src);
-
- } else if (src == NULL) {
- buf = mprStrdup(ep, "null");
-
- } else {
- ubuf = (uchar*) buf;
- if (dupString(MPR_LOC_ARGS(ep), &ubuf, src, vp->length) < 0) {
- return mprStrdup(ep, "");
- }
- buf = (char*) ubuf;
- }
- break;
-
- default:
- mprAssert(0);
- }
-
- if (fmt == NULL || *fmt == '\0') {
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, "%s", value);
- } else {
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &buf, 0, fmt, value);
- }
-
-done:
- if (allocValue) {
- mprFree(allocValue);
- }
- return buf;
-}
-
-/******************************************************************************/
-/*
- * Convert the variable to a boolean. Only for primitive types.
- */
-
-int ejsVarToBoolean(EjsVar *vp)
-{
- mprAssert(vp);
-
- switch (vp->type) {
- case EJS_TYPE_UNDEFINED:
- case EJS_TYPE_NULL:
- case EJS_TYPE_STRING_CMETHOD:
- case EJS_TYPE_CMETHOD:
- case EJS_TYPE_METHOD:
- return 0;
-
- case EJS_TYPE_OBJECT:
- return (vp->objectState != NULL);
-
- case EJS_TYPE_PTR:
- return (vp->ptr.userPtr != NULL);
-
- case EJS_TYPE_BOOL:
- return vp->boolean;
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- return (vp->floating != 0 && !ejsIsNan(vp->floating));
-#endif
-
- case EJS_TYPE_INT:
- return (vp->integer != 0);
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- return (vp->integer64 != 0);
-#endif
-
- case EJS_TYPE_STRING:
- return (vp->length > 0);
-#if UNUSED
- if (strcmp(vp->string, "true") == 0 ||
- strcmp(vp->string, "TRUE") == 0) {
- return 1;
-
- } else if (strcmp(vp->string, "false") == 0 ||
- strcmp(vp->string, "FALSE") == 0) {
- return 0;
-
- } else {
- return atoi(vp->string);
- }
-#endif
- }
-
- /* Not reached */
- return 0;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_FLOATING_POINT
-/*
- * Convert the variable to a floating point number. Only for primitive types.
- */
-
-double ejsVarToFloat(EjsVar *vp)
-{
- mprAssert(vp);
-
- switch (vp->type) {
- case EJS_TYPE_UNDEFINED:
- case EJS_TYPE_NULL:
- case EJS_TYPE_STRING_CMETHOD:
- case EJS_TYPE_CMETHOD:
- case EJS_TYPE_METHOD:
- case EJS_TYPE_OBJECT:
- case EJS_TYPE_PTR:
- return 0;
-
- case EJS_TYPE_BOOL:
- return (vp->boolean) ? 1.0 : 0.0;
-
- case EJS_TYPE_FLOAT:
- return vp->floating;
-
- case EJS_TYPE_INT:
- return (double) vp->integer;
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- return (double) vp->integer64;
-#endif
-
- case EJS_TYPE_STRING:
- if (vp->length == 0) {
- return 0.0;
- } else {
- return atof(vp->string);
- }
- }
-
- /* Not reached */
- return 0;
-}
-
-#endif
-/******************************************************************************/
-/*
- * Convert the variable to an Integer type. Only works for primitive types.
- */
-
-int ejsVarToInteger(EjsVar *vp)
-{
- mprAssert(vp);
-
- switch (vp->type) {
- case EJS_TYPE_UNDEFINED:
- case EJS_TYPE_NULL:
- case EJS_TYPE_STRING_CMETHOD:
- case EJS_TYPE_CMETHOD:
- case EJS_TYPE_METHOD:
- case EJS_TYPE_OBJECT:
- return 0;
-
- case EJS_TYPE_BOOL:
- return (vp->boolean) ? 1 : 0;
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- if (ejsIsNan(vp->floating)) {
- return 0;
- }
- return (int) vp->floating;
-#endif
-
- case EJS_TYPE_INT:
- return vp->integer;
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- return (int) vp->integer64;
-#endif
-
- case EJS_TYPE_STRING:
- if (vp->length == 0) {
- return 0;
- } else {
- return ejsParseInteger(vp->string);
- }
- }
-
- /* Not reached */
- return 0;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_INT64
-/*
- * Convert the variable to an Integer64 type. Only works for primitive types.
- */
-
-int64 ejsVarToInteger64(EjsVar *vp)
-{
- mprAssert(vp);
-
- switch (vp->type) {
- case EJS_TYPE_UNDEFINED:
- case EJS_TYPE_NULL:
- case EJS_TYPE_STRING_CMETHOD:
- case EJS_TYPE_CMETHOD:
- case EJS_TYPE_METHOD:
- case EJS_TYPE_OBJECT:
- case EJS_TYPE_PTR:
- return 0;
-
- case EJS_TYPE_BOOL:
- return (vp->boolean) ? 1 : 0;
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- if (ejsIsNan(vp->floating)) {
- return 0;
- }
- return (int64) vp->floating;
-#endif
-
- case EJS_TYPE_INT:
- return vp->integer;
-
- case EJS_TYPE_INT64:
- return vp->integer64;
-
- case EJS_TYPE_STRING:
- if (vp->length == 0) {
- return 0;
- } else {
- return ejsParseInteger64(vp->string);
- }
- }
-
- /* Not reached */
- return 0;
-}
-
-#endif /* BLD_FEATURE_INT64 */
-/******************************************************************************/
-/*
- * Convert the variable to a number type. Only works for primitive types.
- */
-
-EjsNum ejsVarToNumber(EjsVar *vp)
-{
-#if BLD_FEATURE_NUM_TYPE_ID == EJS_TYPE_INT64
- return ejsVarToInteger64(vp);
-#elif BLD_FEATURE_NUM_TYPE_ID == EJS_TYPE_FLOAT
- return ejsVarToFloat(vp);
-#else
- return ejsVarToInteger(vp);
-#endif
-}
-
-/******************************************************************************/
-/*
- * Convert a var to a string. Store the result in ep->castTemp. If allocated
- * set ep->castAlloc to TRUE. Caller must NOT free the result.
- */
-
-char *ejsVarToString(Ejs *ep, EjsVar *vp)
-{
- MprBuf *bp;
- char numBuf[16];
- int len, i;
-
- if (ep->castAlloc) {
- mprFree(ep->castTemp);
- }
- ep->castTemp = 0;
- ep->castAlloc = 0;
-
- switch (vp->type) {
- case EJS_TYPE_UNDEFINED:
- ep->castTemp = "undefined";
- break;
-
- case EJS_TYPE_NULL:
- ep->castTemp = "null";
- break;
-
- case EJS_TYPE_PTR:
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &ep->castTemp, 0,
- "[Opaque Pointer %p]", vp->ptr.userPtr);
- ep->castAlloc = 1;
- break;
-
- case EJS_TYPE_BOOL:
- if (vp->boolean) {
- ep->castTemp = "true";
- } else {
- ep->castTemp = "false";
- }
- break;
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- len = mprAllocSprintf(MPR_LOC_ARGS(ep), &ep->castTemp, 0,
- "%f", vp->floating);
- ep->castAlloc = 1;
- break;
-#endif
-
- case EJS_TYPE_INT:
- mprItoa(numBuf, sizeof(numBuf), vp->integer);
- ep->castTemp = mprStrdup(ep, numBuf);
- ep->castAlloc = 1;
- break;
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- mprAllocSprintf(MPR_LOC_ARGS(ep), &ep->castTemp, 0,
- "%Ld", vp->integer64);
- ep->castAlloc = 1;
- break;
-#endif
-
- case EJS_TYPE_CMETHOD:
- ep->castTemp = "[C Method]";
- break;
-
- case EJS_TYPE_STRING_CMETHOD:
- ep->castTemp = "[C StringMethod]";
- break;
-
- case EJS_TYPE_METHOD:
- bp = mprCreateBuf(ep, 0, 0);
- mprPutStringToBuf(bp, "function (");
- for (i = 0; i < vp->method.args->length; i++) {
- mprPutStringToBuf(bp, vp->method.args->items[i]);
- if ((i + 1) < vp->method.args->length) {
- mprPutStringToBuf(bp, ", ");
- }
- }
- mprPutStringToBuf(bp, ") {");
- mprPutStringToBuf(bp, vp->method.body);
- mprPutStringToBuf(bp, "}");
- mprAddNullToBuf(bp);
- ep->castTemp = mprStealBuf(ep, bp);
- ep->castAlloc = 1;
- mprFree(bp);
- break;
-
- case EJS_TYPE_OBJECT:
- if (ejsRunMethod(ep, vp, "toString", 0) < 0) {
- return mprStrdup(ep, "[object Object]");
- }
- ep->castTemp = mprStrdup(ep, ep->result->string);
- ep->castAlloc = 1;
- break;
-
- case EJS_TYPE_STRING:
- if (vp->string == 0) {
- ep->castTemp = "null";
- } else {
- ep->castTemp = vp->string;
- }
- break;
-
- default:
- mprAssert(0);
- }
-
- mprAssert(ep->castTemp);
- return ep->castTemp;
-}
-
-/******************************************************************************/
-
-char *ejsVarToStringEx(Ejs *ep, EjsVar *vp, bool *alloc)
-{
- char *str;
-
- mprAssert(alloc);
-
- str = ejsVarToString(ep, vp);
- *alloc = ep->castAlloc;
- ep->castAlloc = 0;
- ep->castTemp = 0;
- return str;
-}
-
-/******************************************************************************/
-/*
- * Parse a string based on formatting instructions and intelligently
- * create a variable.
- *
- * Float format: [+|-]DIGITS][DIGITS][(e|E)[+|-]DIGITS]
- */
-
-EjsVar *ejsParseVar(Ejs *ep, const char *buf, EjsType preferredType)
-{
- EjsType type;
- const char *cp;
- int isHex;
-
- mprAssert(buf);
-
- type = preferredType;
-
- if (preferredType == EJS_TYPE_UNDEFINED) {
- isHex = 0;
- if (*buf == '-' || *buf == '+') {
- type = EJS_NUM_VAR;
-
- } else if (!isdigit((int) *buf)) {
- if (strcmp(buf, "true") == 0 || strcmp(buf, "false") == 0) {
- type = EJS_TYPE_BOOL;
- } else {
- type = EJS_TYPE_STRING;
- }
-
- } else if (isdigit((int) *buf)) {
- type = EJS_NUM_VAR;
- cp = buf;
- if (*cp && tolower(cp[1]) == 'x') {
- cp = &cp[2];
- isHex = 1;
- for (cp = buf; *cp; cp++) {
- if (! isxdigit((int) *cp)) {
- break;
- }
- }
- } else {
-#if BLD_FEATURE_FLOATING_POINT
- /* Could be integer or float */
- for (cp = buf; *cp; cp++) {
- if (! isdigit((int) *cp)) {
- int c = tolower(*cp);
- if (c == '.' || c == 'e' || c == 'f') {
- type = EJS_TYPE_FLOAT;
- break;
- }
- }
- }
-#endif
- }
- }
- }
-
- switch (type) {
- case EJS_TYPE_OBJECT:
- case EJS_TYPE_UNDEFINED:
- case EJS_TYPE_NULL:
- case EJS_TYPE_PTR:
- default:
- break;
-
- case EJS_TYPE_BOOL:
- return ejsCreateBoolVar(ep, ejsParseBoolean(buf));
-
- case EJS_TYPE_INT:
- return ejsCreateIntegerVar(ep, ejsParseInteger(buf));
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- return ejsCreateInteger64Var(ep, ejsParseInteger64(buf));
-#endif
-
- case EJS_TYPE_STRING:
- if (strcmp(buf, "null") == 0) {
- return ejsCreateNullVar(ep);
-
- } else if (strcmp(buf, "undefined") == 0) {
- return ejsCreateUndefinedVar(ep);
- }
-
- return ejsCreateStringVar(ep, buf);
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- return ejsCreateFloatVar(ep, atof(buf));
-#endif
-
- }
- return ejsCreateUndefinedVar(ep);
-}
-
-/******************************************************************************/
-/*
- * Convert the variable to a number type. Only works for primitive types.
- */
-
-bool ejsParseBoolean(const char *s)
-{
- if (s == 0 || *s == '\0') {
- return 0;
- }
- if (strcmp(s, "false") == 0 || strcmp(s, "FALSE") == 0) {
- return 0;
- }
- return 1;
-}
-
-/******************************************************************************/
-/*
- * Convert the variable to a number type. Only works for primitive types.
- */
-
-EjsNum ejsParseNumber(const char *s)
-{
-#if BLD_FEATURE_NUM_TYPE_ID == EJS_TYPE_INT64
- return ejsParseInteger64(s);
-#elif BLD_FEATURE_NUM_TYPE_ID == EJS_TYPE_FLOAT
- return ejsParseFloat(s);
-#else
- return ejsParseInteger(s);
-#endif
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_INT64
-/*
- * Convert the string buffer to an Integer64.
- */
-
-int64 ejsParseInteger64(const char *str)
-{
- const char *cp;
- int64 num64;
- int radix, c, negative;
-
- mprAssert(str);
-
- cp = str;
- num64 = 0;
- negative = 0;
-
- if (*cp == '-') {
- cp++;
- negative = 1;
- } else if (*cp == '+') {
- cp++;
- }
-
- /*
- * Parse a number. Observe hex and octal prefixes (0x, 0)
- */
- if (*cp != '0') {
- /*
- * Normal numbers (Radix 10)
- */
- while (isdigit((int) *cp)) {
- num64 = (*cp - '0') + (num64 * 10);
- cp++;
- }
- } else {
- cp++;
- if (tolower(*cp) == 'x') {
- cp++;
- radix = 16;
- while (*cp) {
- c = tolower(*cp);
- if (isdigit(c)) {
- num64 = (c - '0') + (num64 * radix);
- } else if (c >= 'a' && c <= 'f') {
- num64 = (c - 'a' + 10) + (num64 * radix);
- } else {
- break;
- }
- cp++;
- }
-
- } else{
- radix = 8;
- while (*cp) {
- c = tolower(*cp);
- if (isdigit(c) && c < '8') {
- num64 = (c - '0') + (num64 * radix);
- } else {
- break;
- }
- cp++;
- }
- }
- }
-
- if (negative) {
- return 0 - num64;
- }
- return num64;
-}
-
-#endif /* BLD_FEATURE_INT64 */
-/******************************************************************************/
-/*
- * Convert the string buffer to an Integer.
- */
-
-int ejsParseInteger(const char *str)
-{
- const char *cp;
- int num;
- int radix, c, negative;
-
- mprAssert(str);
-
- cp = str;
- num = 0;
- negative = 0;
-
- if (*cp == '-') {
- cp++;
- negative = 1;
- } else if (*cp == '+') {
- cp++;
- }
-
- /*
- * Parse a number. Observe hex and octal prefixes (0x, 0)
- */
- if (*cp != '0') {
- /*
- * Normal numbers (Radix 10)
- */
- while (isdigit((int) *cp)) {
- num = (*cp - '0') + (num * 10);
- cp++;
- }
- } else {
- cp++;
- if (tolower(*cp) == 'x') {
- cp++;
- radix = 16;
- while (*cp) {
- c = tolower(*cp);
- if (isdigit(c)) {
- num = (c - '0') + (num * radix);
- } else if (c >= 'a' && c <= 'f') {
- num = (c - 'a' + 10) + (num * radix);
- } else {
- break;
- }
- cp++;
- }
-
- } else{
- radix = 8;
- while (*cp) {
- c = tolower(*cp);
- if (isdigit(c) && c < '8') {
- num = (c - '0') + (num * radix);
- } else {
- break;
- }
- cp++;
- }
- }
- }
-
- if (negative) {
- return 0 - num;
- }
- return num;
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_FLOATING_POINT
-/*
- * Convert the string buffer to an Floating.
- */
-
-double ejsParseFloat(const char *str)
-{
- return atof(str);
-}
-
-/******************************************************************************/
-
-int ejsIsNan(double f)
-{
-#if WIN
- return _isnan(f);
-#elif VXWORKS
- /* FUTURE */
- return (0);
-#else
- return (f == FP_NAN);
-#endif
-}
-/******************************************************************************/
-
-int ejsIsInfinite(double f)
-{
-#if WIN
- return !_finite(f);
-#elif VXWORKS
- /* FUTURE */
- return (0);
-#else
- return (f == FP_INFINITE);
-#endif
-}
-
-#endif /* BLD_FEATURE_FLOATING_POINT */
-
-/******************************************************************************/
-/*
- * Single point of control for all assignment to properties.
- *
- * Copy an objects core value (only). This preserves the destination object's
- * name. This implements copy by reference for objects and copy by value for
- * strings and other types. Caller must free dest prior to calling.
- */
-
-static EjsVar *copyVar(EJS_LOC_DEC(ep, loc), EjsVar *dest, const EjsVar *src,
- EjsCopyDepth copyDepth)
-{
- Ejs *ejsContext;
- EjsObj *srcObj;
- EjsProperty *destp;
- const char **srcArgs;
- char *str;
- int i;
-
- mprAssert(dest);
- mprAssert(src);
-
- if (dest == src) {
- return dest;
- }
-
- if (dest->type != EJS_TYPE_UNDEFINED) {
- ejsClearVar(ep, dest);
- }
-
- dest->allocatedData = 0;
-
- switch (src->type) {
- default:
- case EJS_TYPE_UNDEFINED:
- case EJS_TYPE_NULL:
- break;
-
- case EJS_TYPE_BOOL:
- dest->boolean = src->boolean;
- break;
-
- case EJS_TYPE_PTR:
- dest->ptr = src->ptr;
- if (dest->ptr.destructor) {
- dest->allocatedData = 1;
- }
- break;
-
- case EJS_TYPE_STRING_CMETHOD:
- dest->cMethodWithStrings = src->cMethodWithStrings;
- break;
-
- case EJS_TYPE_CMETHOD:
- dest->cMethod = src->cMethod;
- break;
-
-#if BLD_FEATURE_FLOATING_POINT
- case EJS_TYPE_FLOAT:
- dest->floating = src->floating;
- break;
-#endif
-
- case EJS_TYPE_INT:
- dest->integer = src->integer;
- break;
-
-#if BLD_FEATURE_INT64
- case EJS_TYPE_INT64:
- dest->integer64 = src->integer64;
- break;
-#endif
-
- case EJS_TYPE_OBJECT:
- if (copyDepth == EJS_SHALLOW_COPY) {
-
- /*
- * If doing a shallow copy and the src object is from the same
- * interpreter, or we are copying from the master interpreter, or
- * we are using a shared slab, then we can do a shallow copy.
- * Otherwise, we must do a deep copy.
- */
- srcObj = src->objectState;
- if (srcObj->ejs == ep || srcObj->ejs == ep->service->master ||
- (ep->flags & EJS_FLAGS_SHARED_SLAB)) {
- dest->objectState = src->objectState;
- dest->allocatedData = 1;
- break;
- }
- }
-
- /*
- * Doing a deep or recursive deep. Can get here if doing a shallow
- * copy and the object is from another non-master interpeter and not
- * using a shared slab.
- *
- * We must make sure the data is allocated using the right memory
- * context. It must be the same as the destination parent object.
- * Otherwise, when we free the property memory, the parent may
- * have a dangling pointer.
- */
- if (dest->isProperty) {
- destp = ejsGetPropertyPtr(dest);
- if (destp->parentObj == 0) {
- ejsContext = ep;
-
- } else {
- mprAssert(destp->parentObj);
- ejsContext = destp->parentObj->ejs;
- mprAssert(ejsContext);
- }
-
- } else {
- ejsContext = ep;
- }
-
- dest->objectState = createObj(EJS_LOC_PASS(ejsContext, loc));
- if (dest->objectState == 0) {
- /* Memory Error */
- return 0;
- }
-
- dest->objectState->baseClass = src->objectState->baseClass;
- dest->objectState->methods = src->objectState->methods;
- dest->objectState->noConstructor = src->objectState->noConstructor;
- dest->objectState->objName =
- mprStrdup(ejsContext, src->objectState->objName);
-
- if (dest->objectState->objName == 0) {
- return 0;
- }
-
- if (ejsCopyProperties(ep, dest, src, copyDepth) == 0) {
- return 0;
- }
- dest->allocatedData = 1;
- break;
-
- case EJS_TYPE_METHOD:
- dest->method.args = mprCreateItemArray(ep, EJS_INC_ARGS,
- EJS_MAX_ARGS);
- if (dest->method.args == 0) {
- return 0;
- }
- dest->allocatedData = 1;
- if (src->method.args) {
- srcArgs = (const char**) src->method.args->items;
- for (i = 0; i < src->method.args->length; i++) {
- str = mprStrdupInternal(EJS_LOC_PASS(dest->method.args,
- loc), srcArgs[i]);
- if (str == 0) {
- mprFree(dest->method.args);
- dest->method.args = 0;
- return 0;
- }
- if (mprAddItem(dest->method.args, str) < 0) {
- mprFree(dest->method.args);
- dest->method.args = 0;
- return 0;
- }
- }
- }
- dest->method.body = mprStrdup(dest->method.args, src->method.body);
- if (dest->method.body == 0) {
- mprFree(dest->method.args);
- dest->method.args = 0;
- return 0;
- }
- dest->callsSuper = src->callsSuper;
- break;
-
- case EJS_TYPE_STRING:
- dest->length = src->length;
- if (src->string) {
- /* Shallow, deep or recursive deep */
- dest->length = dupString(MPR_LOC_PASS(ep, loc), &dest->ustring,
- src->ustring, src->length);
- if (dest->length < 0) {
- return 0;
- }
- dest->allocatedData = 1;
-
- } else {
- dest->string = src->string;
- dest->allocatedData = 0;
- }
- break;
- }
-
- dest->type = src->type;
- dest->flags = src->flags;
- dest->isArray = src->isArray;
-
- return dest;
-}
-
-/******************************************************************************/
-/*
- * Copy all properies in an object. Must preserve property order
- */
-
-EjsVar *ejsCopyProperties(Ejs *ep, EjsVar *dest, const EjsVar *src,
- EjsCopyDepth copyDepth)
-{
- EjsProperty *srcProp, *destProp, *last, *next;
- int propertyIndex;
-
- srcProp = ejsGetFirstProperty(src, EJS_ENUM_ALL);
- while (srcProp) {
- next = ejsGetNextProperty(srcProp, EJS_ENUM_ALL);
- if (srcProp->visited) {
- srcProp = next;
- continue;
- }
-
- /*
- * This finds the last variable in the hash chain
- * FUTURE OPT. This is slow. If used double link, we could locate the
- * tail more easily.
- */
- destProp = hashLookup(dest->objectState, srcProp->name,
- &propertyIndex, &last);
- mprAssert(destProp == 0);
-
- destProp = allocProperty(ep, dest, srcProp->name, propertyIndex, last);
- if (destProp == 0) {
- mprAssert(destProp);
- return 0;
- }
-
- /*
- * Recursively copy the object. If DEEP_COPY, then we
- * will do a shallow copy of the object contents. If
- * RECURSIVE_DEEP, then we do a deep copy at all levels.
- */
- srcProp->visited = 1;
-
- if (copyVar(EJS_LOC_ARGS(ep), ejsGetVarPtr(destProp),
- ejsGetVarPtr(srcProp),
- (copyDepth == EJS_DEEP_COPY) ? EJS_SHALLOW_COPY : copyDepth)
- == 0) {
- return 0;
- }
- srcProp->visited = 0;
-
- srcProp = next;
- }
- return dest;
-}
-
-/******************************************************************************/
-/********************************** Properties ********************************/
-/******************************************************************************/
-/*
- * Create a property in an object and return a pointer to it. If the property
- * already exists then just return a pointer to it (no error).
- * To test for existance of a property, use GetProperty
- */
-
-static EjsProperty *hashLookup(EjsObj *obj, const char *property,
- int *propertyIndex, EjsProperty **hashTail)
-{
- EjsProperty *prop, *last;
- int index;
-
- mprAssert(obj);
- mprAssert(property);
-
- if (obj == 0 || property == 0 || *property == '\0') {
- mprAssert(0);
- return 0;
- }
-
- /*
- * Find the property in the hash chain if it exists
- */
- index = hash(property);
- prop = obj->propertyHash[index];
- for (last = 0; prop != 0; last = prop, prop = prop->hashNext) {
- if (prop->name[0] == property[0] &&
- strcmp(prop->name, property) == 0) {
- break;
- }
- }
- if (propertyIndex) {
- *propertyIndex = index;
- }
- if (hashTail) {
- *hashTail = last;
- }
-
- return prop;
-}
-
-/******************************************************************************/
-/*
- * Create a property in an object and return a pointer to it. If the property
- * already exists then just return a pointer to it (no error). If the property
- * does not exist, create an undefined variable. To test for existance of a
- * property, use GetProperty.
- */
-
-EjsProperty *ejsCreateSimpleProperty(Ejs *ep, EjsVar *op, const char *property)
-{
- EjsProperty *prop, *last;
- int propertyIndex;
-
- if (op == 0 || op->type != EJS_TYPE_OBJECT || property == 0 ||
- *property == '\0') {
- mprAssert(0);
- return 0;
- }
-
- /*
- * Find the property in the hash chain if it exists
- */
- prop = hashLookup(op->objectState, property, &propertyIndex, &last);
-
- if (prop == 0) {
- /*
- * Create a new property
- */
- prop = allocProperty(ep, op, property, propertyIndex, last);
- if (prop == 0) {
- mprAssert(prop == 0);
- return 0;
- }
- }
- return prop;
-}
-
-/******************************************************************************/
-/*
- * Create a property in an object and return a pointer to it. If the property
- * already exists then just return a pointer to it (no error).
- * To test for existance of a property, use GetProperty
- */
-
-EjsProperty *ejsCreateSimpleNonUniqueProperty(Ejs *ep, EjsVar *op,
- const char *property)
-{
- EjsProperty *prop, *last;
- int propertyIndex;
-
- if (op == 0 || op->type != EJS_TYPE_OBJECT || property == 0 ||
- *property == '\0') {
- mprAssert(0);
- return 0;
- }
-
- /*
- * Find end of chain
- */
- propertyIndex = hash(property);
- prop = op->objectState->propertyHash[propertyIndex];
- for (last = 0; prop != 0; last = prop, prop = prop->hashNext) {
- ;
- }
-
- return allocProperty(ep, op, property, propertyIndex, last);
-}
-
-/******************************************************************************/
-/*
- * Find a property in an object and return a pointer to it.
- * This does NOT traverse base classes.
- */
-
-EjsProperty *ejsGetSimpleProperty(Ejs *ep, EjsVar *op, const char *property)
-{
- mprAssert(op);
- mprAssert(op->type == EJS_TYPE_OBJECT);
- mprAssert(property && *property);
-
- /*
- * This is an internal API. It has very little checking.
- */
- return hashLookup(op->objectState, property, 0, 0);
-}
-
-/******************************************************************************/
-
-/*
- * NOTE: There is no ejsSetSimpleProperty as all the ejsSetProperty routines
- * operate only on the instance and don't follow base classes. ie. there is
- * no simple version required. However, there is a ejsSetBaseProperty routine
- * that will follow base classes and is used to set static properties in base
- * classes
- */
-
-/******************************************************************************/
-/******************************* Property Access ******************************/
-/******************************************************************************/
-/*
- * The property get routines follow base classes and utilize the propery
- * method access routines. The property set routines do not follow base
- * classes. The property ejsSetBase... routines do follow base classes.
- */
-
-/*
- * Find a property in an object and return a pointer to it.
- * This follows base classes.
- */
-
-EjsProperty *ejsGetProperty(Ejs *ep, EjsVar *op, const char *property)
-{
- EjsVar *vp, *newOp;
- int maxBaseClasses = 50;
-
- do {
- if (op->type != EJS_TYPE_OBJECT) {
- mprAssert(op->type == EJS_TYPE_OBJECT);
- return 0;
- }
- mprAssert(op->objectState);
-
- vp = ejsGetPropertyMethod(ep, op, property);
- if (vp != 0) {
- /*
- * Found
- */
- break;
- }
-
- newOp = op->objectState->baseClass;
- if (newOp == 0) {
- if (op->objectState != ep->objectClass->objectState) {
- newOp = ep->objectClass;
- }
- }
- op = newOp;
-
- /*
- * A little bit of sanity checking
- */
- if (--maxBaseClasses <= 0) {
- mprAssert(maxBaseClasses > 0);
- break;
- }
-
- } while (op);
-
- return ejsGetPropertyPtr(vp);
-}
-
-/******************************************************************************/
-/*
- * Get the property's variable. Optionally create if it does not exist.
- */
-
-EjsVar *ejsGetPropertyAsVar(Ejs *ep, EjsVar *vp, const char *property)
-{
- return ejsGetVarPtr(ejsGetProperty(ep, vp, property));
-}
-
-/******************************************************************************/
-/*
- * Get the property's value as a binary string.
- */
-
-const uchar *ejsGetPropertyAsBinaryString(Ejs *ep, EjsVar *obj,
- const char *property, int *length)
-{
- EjsVar *vp;
-
- vp = ejsGetVarPtr(ejsGetProperty(ep, obj, property));
- if (vp == 0 || ejsVarIsUndefined(vp)) {
- return 0;
- }
-
- if (vp->type == EJS_TYPE_STRING) {
- if (length) {
- *length = vp->length;
- }
- return vp->ustring;
- }
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Get the property's value as a string.
- */
-
-const char *ejsGetPropertyAsString(Ejs *ep, EjsVar *obj, const char *property)
-{
- EjsVar *vp;
-
- vp = ejsGetVarPtr(ejsGetProperty(ep, obj, property));
- if (vp == 0 || ejsVarIsUndefined(vp)) {
- return 0;
- }
-
- if (vp->type == EJS_TYPE_STRING) {
- return vp->string;
- }
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Get the property's value as a number.
- */
-
-BLD_FEATURE_NUM_TYPE ejsGetPropertyAsNumber(Ejs *ep, EjsVar *obj,
- const char *property)
-{
- EjsVar *vp;
-
- vp = ejsGetVarPtr(ejsGetProperty(ep, obj, property));
- if (vp == 0 || ejsVarIsUndefined(vp)) {
- return 0;
- }
-
- return ejsVarToNumber(vp);
-}
-
-/******************************************************************************/
-/*
- * Get the property's value as a integer.
- */
-
-int ejsGetPropertyAsInteger(Ejs *ep, EjsVar *obj, const char *property)
-{
- EjsVar *vp;
-
- vp = ejsGetVarPtr(ejsGetProperty(ep, obj, property));
- if (vp == 0 || ejsVarIsUndefined(vp)) {
- return 0;
- }
-
- return ejsVarToInteger(vp);
-}
-
-/******************************************************************************/
-/*
- * Get the property's value as a boolean.
- */
-
-bool ejsGetPropertyAsBoolean(Ejs *ep, EjsVar *obj, const char *property)
-{
- EjsVar *vp;
-
- vp = ejsGetVarPtr(ejsGetProperty(ep, obj, property));
- if (vp == 0 || ejsVarIsUndefined(vp)) {
- return 0;
- }
-
- return ejsVarToBoolean(vp);
-}
-
-/******************************************************************************/
-/*
- * Get the property's value as a pointer.
- */
-
-void *ejsGetPropertyAsPtr(Ejs *ep, EjsVar *obj, const char *property)
-{
- EjsVar *vp;
-
- vp = ejsGetVarPtr(ejsGetProperty(ep, obj, property));
- if (vp == 0 || ejsVarIsUndefined(vp)) {
- return 0;
- }
- if (vp->type == EJS_TYPE_PTR) {
- return vp->ptr.userPtr;
- }
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Create a property in the object. This will override any base class
- * properties.
- *
- * MOB -- need to spell out the difference between ejsSetProperty and
- * ejsCreateProperty.
- */
-
-EjsProperty *ejsCreateProperty(Ejs *ep, EjsVar *obj, const char *property)
-{
- EjsVar *vp;
-
- vp = ejsCreatePropertyMethod(ep, obj, property);
- return ejsGetPropertyPtr(vp);
-}
-
-/******************************************************************************/
-/*
- * Set a property's variable value. Create the property if it does not exist.
- * This routine DOES follow base classes.
- */
-
-EjsProperty *ejsSetBaseProperty(Ejs *ep, EjsVar *op, const char *property,
- const EjsVar *value)
-{
- EjsVar *vp, *newOp;
- int maxBaseClasses = 50;
-
- do {
- if (op->type != EJS_TYPE_OBJECT) {
- mprAssert(op->type == EJS_TYPE_OBJECT);
- return 0;
- }
- mprAssert(op->objectState);
-
- vp = ejsGetPropertyMethod(ep, op, property);
- if (vp != 0) {
- /*
- * Found
- */
- vp = ejsSetPropertyMethod(ep, op, property, value);
- break;
- }
-
- newOp = op->objectState->baseClass;
- if (newOp == 0) {
- if (op->objectState != ep->objectClass->objectState) {
- newOp = ep->objectClass;
- }
- }
- op = newOp;
-
- /*
- * A little bit of sanity checking
- */
- if (--maxBaseClasses <= 0) {
- mprAssert(maxBaseClasses > 0);
- break;
- }
-
- } while (op);
-
- return ejsGetPropertyPtr(vp);
-}
-
-/******************************************************************************/
-/*
- * Set a property's variable value. Create the property if it does not exist.
- * This does NOT follow base classes. Okay when updating instance properties,
- * but not for class (static) properties. This does a shallow copy which
- * will copy references.
- */
-
-EjsProperty *ejsSetProperty(Ejs *ep, EjsVar *obj, const char *property,
- const EjsVar *value)
-{
- EjsVar *vp;
-
- vp = ejsSetPropertyMethod(ep, obj, property, value);
-
- return ejsGetPropertyPtr(vp);
-}
-
-/******************************************************************************/
-/*
- * Set a property's variable value by assigning the given value. The caller
- * must NOT free value as it is assigned directly into the property's value.
- */
-
-EjsProperty *ejsSetPropertyAndFree(Ejs *ep, EjsVar *obj,
- const char *property, EjsVar *value)
-{
- EjsVar *vp;
-
- vp = ejsSetPropertyMethod(ep, obj, property, value);
-
- ejsFree(ep, value, EJS_SLAB_VAR);
-
- return ejsGetPropertyPtr(vp);
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToCMethod(Ejs *ep, EjsVar *vp, const char *prop,
- EjsCMethod fn, void *userData, int flags)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_CMETHOD);
- v.cMethod.fn = fn;
- v.cMethod.userData = userData;
- v.flags = flags;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToBoolean(Ejs *ep, EjsVar *vp, const char *prop,
- int value)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_BOOL);
- v.boolean = value;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_FLOATING_POINT
-
-EjsProperty *ejsSetPropertyToFloat(Ejs *ep, EjsVar *vp, const char *prop,
- double value)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_FLOAT);
- v.floating = value;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-#endif
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToInteger(Ejs *ep, EjsVar *vp, const char *prop,
- int value)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_INT);
- v.integer = value;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-#if BLD_FEATURE_INT64
-
-EjsProperty *ejsSetPropertyToInteger64(Ejs *ep, EjsVar *vp, const char *prop,
- int64 value)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_INT64);
- v.integer64 = value;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-#endif
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToNull(Ejs *ep, EjsVar *vp, const char *prop)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_NULL);
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToMethod(Ejs *ep, EjsVar *vp, const char *prop,
- const char *body, MprArray *args, int flags)
-{
- return ejsSetPropertyAndFree(ep, vp, prop,
- ejsCreateMethodVar(ep, body, args, flags));
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToNumber(Ejs *ep, EjsVar *vp, const char *prop,
- EjsNum value)
-{
- return ejsSetPropertyAndFree(ep, vp, prop, ejsCreateNumberVar(ep, value));
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToStringCMethod(Ejs *ep, EjsVar *vp,
- const char *prop, EjsStringCMethod fn, void *userData, int flags)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_STRING_CMETHOD);
- v.cMethodWithStrings.fn = fn;
- v.cMethodWithStrings.userData = userData;
- v.flags = flags;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToString(Ejs *ep, EjsVar *vp, const char *prop,
- const char *value)
-{
- EjsProperty *pp;
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_STRING);
-
- /* FUTURE OPT */
- v.string = mprStrdupInternal(EJS_LOC_ARGS(ep), value);
- if (v.string == 0) {
- return 0;
- }
- v.length = strlen(v.string);
- v.allocatedData = 1;
-
- pp = ejsSetProperty(ep, vp, prop, &v);
-
- mprFree(v.string);
-
- return pp;
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToBinaryString(Ejs *ep, EjsVar *vp,
- const char *prop, const uchar *value, int len)
-{
- EjsProperty *pp;
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_STRING);
-
- /* FUTURE OPT */
- v.length = dupString(MPR_LOC_ARGS(ep), &v.ustring, value, len);
- if (v.length < 0) {
- return 0;
- }
- v.allocatedData = 1;
-
- pp = ejsSetProperty(ep, vp, prop, &v);
-
- mprFree(v.ustring);
-
- return pp;
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToUndefined(Ejs *ep, EjsVar *vp, const char *prop)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_UNDEFINED);
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToPtr(Ejs *ep, EjsVar *vp, const char *prop,
- void *ptr, EjsDestructor destructor)
-{
- EjsVar v;
-
- ejsInitVar(&v, EJS_TYPE_PTR);
- v.ptr.userPtr = ptr;
- v.ptr.destructor = destructor;
- v.allocatedData = 1;
-
- return ejsSetProperty(ep, vp, prop, &v);
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToNewObj(Ejs *ep, EjsVar *vp, const char *prop,
- const char *className, MprArray *args)
-{
- return ejsSetPropertyAndFree(ep, vp, prop,
- ejsCreateObjUsingArgv(ep, 0, className, args));
-}
-
-/******************************************************************************/
-
-EjsProperty *ejsSetPropertyToObj(Ejs *ep, EjsVar *op, const char *prop)
-{
- return ejsSetPropertyAndFree(ep, op, prop, ejsCreateObjVar(ep));
-}
-
-/******************************************************************************/
-/*
- * Convenience routines
- */
-
-EjsVar *ejsSetPropertyToObjAsVar(Ejs *ep, EjsVar *op, const char *prop)
-{
- return ejsGetVarPtr(ejsSetPropertyToObj(ep, op, prop));
-}
-
-/******************************************************************************/
-/******************************************************************************/
-/******************************************************************************/
-/******************************************************************************/
-/*
- * Create a script method
- */
-
-EjsProperty *ejsDefineMethod(Ejs *ep, EjsVar *vp, const char *prop,
- const char *body, MprArray *args)
-{
- if (vp == 0) {
- vp = ejsGetGlobalObj(ep);
- }
- return ejsSetPropertyToMethod(ep, vp, prop, body, args, 0);
-}
-
-/******************************************************************************/
-/*
- * Create a C language method
- */
-
-EjsProperty *ejsDefineCMethod(Ejs *ep, EjsVar *vp, const char *prop,
- EjsCMethod fn, int flags)
-{
- if (vp == 0) {
- vp = ejsGetGlobalObj(ep);
- }
- return ejsSetPropertyToCMethod(ep, vp, prop, fn, 0, flags);
-}
-
-/******************************************************************************/
-/*
- * Define accessors
- */
-
-EjsProperty *ejsDefineAccessors(Ejs *ep, EjsVar *vp, const char *prop,
- const char *getBody, const char *setBody)
-{
- EjsProperty *pp;
- MprArray *args;
- char *propName;
-
- if (vp == 0) {
- vp = ejsGetGlobalObj(ep);
- }
-
- if (ejsSetPropertyToMethod(ep, vp, prop, getBody, 0, EJS_GET_ACCESSOR) < 0){
- ejsMemoryError(ep);
- return 0;
- }
-
- /* MOB -- OPT to use SLAB */
- /* MOB -- need to encapsulate this logic */
-
- if (mprAllocStrcat(MPR_LOC_ARGS(ep), &propName, EJS_MAX_ID+5, 0,
- "-set-", prop, NULL) < 0) {
- ejsMemoryError(ep);
- return 0;
- }
-
- args = mprCreateItemArray(ep, EJS_INC_ARGS, EJS_MAX_ARGS);
- mprAddItem(args, mprStrdup(args, "value"));
-
- pp = ejsSetPropertyToMethod(ep, vp, propName, setBody, args,
- EJS_SET_ACCESSOR);
- mprFree(propName);
-
- if (pp == 0) {
- ejsMemoryError(ep);
- return 0;
- }
-
- return pp;
-}
-
-/******************************************************************************/
-/*
- * Define C accessors
- */
-
-EjsProperty *ejsDefineCAccessors(Ejs *ep, EjsVar *vp, const char *prop,
- EjsCMethod getFn, EjsCMethod setFn, int flags)
-{
- EjsProperty *pp;
- char *propName;
-
- if (vp == 0) {
- vp = ejsGetGlobalObj(ep);
- }
- pp = ejsSetPropertyToCMethod(ep, vp, prop, getFn, 0,
- flags | EJS_GET_ACCESSOR);
- if (pp == 0) {
- ejsMemoryError(ep);
- return 0;
- }
-
- /* MOB -- OPT to use SLAB */
- if (mprAllocStrcat(MPR_LOC_ARGS(ep), &propName, EJS_MAX_ID + 5, 0,
- "-set-", prop, NULL) < 0) {
- ejsMemoryError(ep);
- return 0;
- }
- pp = ejsSetPropertyToCMethod(ep, vp, propName, setFn, 0,
- flags | EJS_SET_ACCESSOR);
- mprFree(propName);
-
- if (pp == 0) {
- ejsMemoryError(ep);
- return 0;
- }
- return pp;
-}
-
-/******************************************************************************/
-/*
- * Create a C language method with string arguments
- */
-
-EjsProperty *ejsDefineStringCMethod(Ejs *ep, EjsVar *vp, const char *prop,
- EjsStringCMethod fn, int flags)
-{
- if (vp == 0) {
- vp = ejsGetGlobalObj(ep);
- }
- return ejsSetPropertyToStringCMethod(ep, vp, prop, fn, 0, flags);
-}
-
-/******************************************************************************/
-
-void ejsSetCMethodUserData(EjsVar *obj, void *userData)
-{
- /*
- * This is a little dirty. We rely on the userData being in the same
- * place in the var structure.
- */
- obj->cMethod.userData = userData;
-}
-
-/******************************************************************************/
-
-void ejsSetVarFlags(EjsVar *obj, int flags)
-{
- obj->flags = flags;
-}
-
-/******************************************************************************/
-
-void *ejsGetCMethodUserData(EjsVar *obj)
-{
- return obj->cMethod.userData;
-}
-
-/******************************************************************************/
-
-int ejsGetVarFlags(EjsVar *obj)
-{
- return obj->flags;
-}
-
-/******************************************************************************/
-
-void ejsSetObjDestructor(Ejs *ep, EjsVar *obj, EjsDestructor destructor)
-{
- obj->objectState->destructor = destructor;
-}
-
-/******************************************************************************/
-
-void ejsClearObjDestructor(Ejs *ep, EjsVar *obj)
-{
- obj->objectState->destructor = 0;
-}
-
-/******************************************************************************/
-/*
- * Create a new property
- */
-
-static EjsProperty *allocProperty(Ejs *ep, EjsVar *op, const char *property,
- int propertyIndex, EjsProperty *last)
-{
- EjsProperty *prop;
- EjsObj *obj;
-
- obj = op->objectState;
-
- /*
- * Allocate the property using the memory context of the owning object
- */
- prop = ejsAllocProperty(EJS_LOC_ARGS(obj->ejs));
- if (prop == 0) {
- return 0;
- }
- if (mprStrcpy(prop->name, sizeof(prop->name), property) < 0) {
- ejsError(ep, EJS_REFERENCE_ERROR,
- "Property name %s is too long. Max is %d letters.",
- prop->name, EJS_MAX_ID);
- return 0;
- }
-
- ejsSetVarName(ep, ejsGetVarPtr(prop), &prop->name[0]);
-
- /*
- * Do hash linkage
- */
- if (last) {
- last->hashNext = prop;
- } else {
- obj->propertyHash[propertyIndex] = prop;
- }
-
-#if BLD_DEBUG
- prop->link.propertyName = prop->name;
- prop->link.property = prop;
- prop->link.head = &obj->link;
-#endif
-
- /*
- * Inserting before the dummy head will append to the end
- */
- linkPropertyBefore(obj, &obj->link, &prop->link);
-
- obj->numProperties++;
- prop->parentObj = obj;
- mprAssert(obj->ejs);
-
- return prop;
-}
-
-/******************************************************************************/
-/*
- * Delete a property from this object
- */
-
-int ejsDeleteProperty(Ejs *ep, EjsVar *vp, const char *property)
-{
- EjsProperty *prop, *last;
- EjsObj *obj;
- int propertyIndex;
-
- mprAssert(vp);
- mprAssert(property && *property);
- mprAssert(vp->type == EJS_TYPE_OBJECT);
-
- if (vp->type != EJS_TYPE_OBJECT) {
- mprAssert(vp->type == EJS_TYPE_OBJECT);
- return MPR_ERR_BAD_ARGS;
- }
-
- prop = hashLookup(vp->objectState, property, &propertyIndex, &last);
- if (prop == (EjsProperty*) 0) {
- return MPR_ERR_NOT_FOUND;
- }
- obj = vp->objectState;
-
-#if FUTURE
- if (prop->readonly) {
- mprAssert(! prop->readonly);
- return MPR_ERR_READ_ONLY;
- }
-#endif
-
- /*
- * If doing enumerations, then the object will mark preventDelete to
- * prevent any properties being deleted and thus disturbing the
- * traversal.
- */
- if (obj->preventDeleteProp) {
- obj->delayedDeleteProp = 1;
- prop->delayedDelete = 1;
- return 0;
- }
-
- /*
- * Remove from hash
- */
- if (last) {
- last->hashNext = prop->hashNext;
- } else {
- obj->propertyHash[propertyIndex] = prop->hashNext;
- }
-
- unlinkProperty(obj, &prop->link);
- obj->numProperties--;
-
- /*
- * Free any property data and return to the slab
- */
- if (prop->var.type != EJS_TYPE_OBJECT) {
- ejsClearVar(ep, ejsGetVarPtr(prop));
- }
- ejsFree(ep, prop, EJS_SLAB_PROPERTY);
-
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Remove a property's value from this object. The property is set to
- * undefined.
- */
-
-EjsVar *ejsClearProperty(Ejs *ep, EjsVar *vp, const char *property)
-{
- EjsProperty *prop;
-
- mprAssert(vp);
- mprAssert(property && *property);
- mprAssert(vp->type == EJS_TYPE_OBJECT);
-
- if (vp->type != EJS_TYPE_OBJECT) {
- mprAssert(vp->type == EJS_TYPE_OBJECT);
- return 0;
- }
-
- prop = hashLookup(vp->objectState, property, 0, 0);
- if (prop == (EjsProperty*) 0) {
- return 0;
- }
-#if FUTURE
- if (prop->readonly) {
- mprAssert(! prop->readonly);
- return 0;
- }
-#endif
-
- ejsClearVar(ep, &prop->var);
- return &prop->var;
-}
-
-/******************************************************************************/
-/*
- * Unlink a property from the ordered list of properties
- */
-
-static void unlinkProperty(EjsObj *obj, EjsPropLink *propLink)
-{
- propLink->prev->next = propLink->next;
- propLink->next->prev = propLink->prev;
-}
-
-/******************************************************************************/
-#if UNUSED && KEEP
-/*
- * Insert a link after a specified link.
- */
-
-static void linkPropertyAfter(EjsObj *obj, EjsPropLink *at,
- EjsPropLink *propLink)
-{
- propLink->next = at->next;
- propLink->prev = at;
-
- at->next->prev = propLink;
- at->next = propLink;
-}
-
-#endif
-/******************************************************************************/
-/*
- * Insert a link before a specified link.
- */
-
-static void linkPropertyBefore(EjsObj *obj, EjsPropLink *at,
- EjsPropLink *propLink)
-{
- propLink->prev = at->prev;
- propLink->next = at;
-
- at->prev->next = propLink;
- at->prev = propLink;
-}
-
-/******************************************************************************/
-/*
- * This routine will sort properties in an object. If propertyName is not
- * null, then the properties in op must be objects with a property of the
- * name propertyName. If propertyName is null, then the properties of op
- * are directly sorted. If order is 1, they are sorted in ascending order.
- * If -1, they are sorted in descending order.
- *
- * NOTE: arrays keep their original index values.
- */
-
-void ejsSortProperties(Ejs *ep, EjsVar *op, EjsSortFn fn,
- const char *propertyName, int order)
-{
- EjsProperty *p1, *p2, *tmp;
- EjsPropLink *l1, *l2, *oldL1Spot;
- EjsObj *obj;
-
- obj = op->objectState;
-
- p1 = ejsGetFirstProperty(op, 0);
- while (p1) {
- if (p1->dontEnumerate) {
- p1 = ejsGetNextProperty(p1, 0);
- continue;
- }
-
- p2 = ejsGetFirstProperty(op, 0);
- while (p2 && p2 != p1) {
-
- if (p2->dontEnumerate) {
- p2 = ejsGetNextProperty(p2, 0);
- continue;
- }
-
- if (fn == 0) {
- if (propertyName) {
- fn = sortByProperty;
- } else {
- fn = sortAllProperties;
- }
- }
-
- if (fn(ep, p1, p2, propertyName, order) < 0) {
-
- l1 = &p1->link;
- l2 = &p2->link;
-
- /*
- * Swap the properties without disturbing the hash chains.
- * l1 is always after l2 in the list. Unlink l1 and remember
- * the one after l1.
- */
- oldL1Spot = l1->next;
- unlinkProperty(obj, l1);
-
- /*
- * Manually reinsert l1 by replacing l2 with l1. l2 is out of
- * the chain.
- */
- l2->prev->next = l1;
- l2->next->prev = l1;
- l1->prev = l2->prev;
- l1->next = l2->next;
-
- /*
- * Reinsert l2 before the spot where l1 was.
- */
- linkPropertyBefore(obj, oldL1Spot, l2);
-
- /*
- * Swap the pointers so we continue to traverse correctly
- */
- tmp = p1;
- p1 = p2;
- p2 = tmp;
- }
- p2 = ejsGetNextProperty(p2, 0);
- }
- p1 = ejsGetNextProperty(p1, 0);
- }
-}
-
-/******************************************************************************/
-/*
- * Sort properties. Strings are sorted in ascending ASCII collating sequence
- * Numbers are sorted in increasing numerical order.
- */
-static int sortAllProperties(Ejs *ep, EjsProperty *p1, EjsProperty *p2,
- const char *propertyName, int order)
-{
- EjsVar *v1, *v2;
- char *buf1, *buf2;
- int rc, buf1Alloc;
-
- v1 = ejsGetVarPtr(p1);
- v2 = ejsGetVarPtr(p2);
-
- if (v1->type == v2->type) {
- /* MOB -- should support Numbers */
- if (v1->type == EJS_TYPE_INT) {
- if (v1->integer < v2->integer) {
- return - order;
-
- } else if (v1->integer == v2->integer) {
- return 0;
- }
- return order;
-
-#if BLD_FEATURE_FLOATING_POINT
- } else if (v1->type == EJS_TYPE_FLOAT) {
- if (v1->floating < v2->floating) {
- return - order;
-
- } else if (v1->floating == v2->floating) {
- return 0;
- }
- return order;
-
-#endif
- } else if (v1->type == EJS_TYPE_STRING) {
- /* MOB -- need binary support ? */
- return strcmp(v1->string, v2->string) * order;
-
- } else {
-
- buf1 = ejsVarToStringEx(ep, v1, &buf1Alloc);
- buf2 = ejsVarToString(ep, v2);
-
- rc = strcmp(buf1, buf2);
-
- if (buf1Alloc) {
- mprFree(buf1);
- }
-
- return rc * order;
- }
-
- } else {
- /* Type mismatch in array */
- return 0;
- }
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Sort an object by a given property.
- */
-static int sortByProperty(Ejs *ep, EjsProperty *p1, EjsProperty *p2,
- const char *propertyName, int order)
-{
- EjsVar *o1, *o2, *v1, *v2;
- char *buf1, *buf2;
- int rc, buf1Alloc;
-
- o1 = ejsGetVarPtr(p1);
- o2 = ejsGetVarPtr(p2);
-
- if (!ejsVarIsObject(o1) || !ejsVarIsObject(o2)) {
- mprAssert(ejsVarIsObject(o1));
- mprAssert(ejsVarIsObject(o2));
- return 0;
- }
-
- v1 = ejsGetPropertyAsVar(ep, o1, propertyName);
- v2 = ejsGetPropertyAsVar(ep, o2, propertyName);
-
- if (v1 == 0 || v2 == 0) {
- /* Property name not found */
- return 0;
- }
-
- if (v1->type != v2->type) {
- mprAssert(v1->type == v2->type);
- return 0;
- }
-
- if (v1->type == v2->type) {
- /* MOB -- should support Numbers */
- if (v1->type == EJS_TYPE_INT) {
- if (v1->integer < v2->integer) {
- return -order;
-
- } else if (v1->integer == v2->integer) {
- return 0;
- }
- return order;
-
-#if BLD_FEATURE_FLOATING_POINT
- } else if (v1->type == EJS_TYPE_FLOAT) {
- if (v1->floating < v2->floating) {
- return -order;
-
- } else if (v1->floating == v2->floating) {
- return 0;
- }
- return order;
-
-#endif
- } else if (v1->type == EJS_TYPE_STRING) {
- /* MOB -- need binary support ? */
- return strcmp(v1->string, v2->string) * order;
-
- } else {
- buf1 = ejsVarToStringEx(ep, v1, &buf1Alloc);
-
- buf2 = ejsVarToString(ep, v2);
-
- rc = strcmp(buf1, buf2);
-
- if (buf1Alloc) {
- mprFree(buf1);
- }
-
- return rc * order;
- }
-
- } else {
- /* Type mismatch in array */
- return 0;
- }
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Set a property's name
- */
-
-void ejsSetPropertyName(EjsProperty *pp, const char *property)
-{
- mprStrcpy(pp->name, sizeof(pp->name), property);
-}
-
-/******************************************************************************/
-
-int ejsMakePropertyEnumerable(EjsProperty *prop, int enumerate)
-{
- int oldValue;
-
- oldValue = prop->dontEnumerate;
- prop->dontEnumerate = !enumerate;
- return oldValue;
-}
-
-/******************************************************************************/
-
-void ejsMakePropertyPrivate(EjsProperty *prop, int isPrivate)
-{
- prop->isPrivate = isPrivate;
-}
-
-/******************************************************************************/
-/*
- * Make a variable read only. Can still be deleted.
- */
-
-void ejsMakePropertyReadOnly(EjsProperty *prop, int readonly)
-{
- prop->readonly = readonly;
-}
-
-/******************************************************************************/
-
-int ejsMakeObjPermanent(EjsVar *vp, int permanent)
-{
- int oldValue;
-
- if (vp && vp->type == EJS_TYPE_OBJECT) {
- oldValue = vp->objectState->permanent;
- vp->objectState->permanent = permanent;
- } else {
- oldValue = 0;
- }
- return oldValue;
-}
-
-/******************************************************************************/
-
-int ejsMakeObjLive(EjsVar *vp, bool alive)
-{
- int oldValue;
-
- oldValue = 0;
- if (vp && vp->type == EJS_TYPE_OBJECT) {
- oldValue = vp->objectState->alive;
- vp->objectState->alive = alive;
- } else {
- oldValue = 0;
- }
- return oldValue;
-}
-
-/******************************************************************************/
-
-void ejsMakeClassNoConstructor(EjsVar *vp)
-{
- mprAssert(vp->type == EJS_TYPE_OBJECT);
-
- if (vp->type == EJS_TYPE_OBJECT) {
- vp->objectState->noConstructor = 1;
- }
-}
-
-/******************************************************************************/
-/*
- * Get the count of properties.
- */
-
-int ejsGetPropertyCount(EjsVar *vp)
-{
- EjsProperty *pp;
- EjsPropLink *lp, *head;
- int count;
-
- mprAssert(vp);
-
- if (vp->type != EJS_TYPE_OBJECT) {
- return 0;
- }
-
- count = 0;
-
- head = &vp->objectState->link;
- for (lp = head->next; lp != head; lp = lp->next) {
- pp = ejsGetPropertyFromLink(lp);
- if (! pp->dontEnumerate) {
- count++;
- }
- }
- return count;
-}
-
-/******************************************************************************/
-/*
- * Get the first property in an object. Used for walking all properties in an
- * object. This will only enumerate properties in this class and not in base
- * classes.
- */
-
-EjsProperty *ejsGetFirstProperty(const EjsVar *op, int flags)
-{
- EjsProperty *pp;
- EjsObj *obj;
- EjsPropLink *head, *lp;
-
- mprAssert(op);
- mprAssert(op->type == EJS_TYPE_OBJECT);
-
- if (op->type != EJS_TYPE_OBJECT) {
- mprAssert(op->type == EJS_TYPE_OBJECT);
- return 0;
- }
- pp = 0;
-
- do {
- obj = op->objectState;
-
- head = &obj->link;
- lp = head->next;
-
- while (lp != head) {
- pp = ejsGetPropertyFromLink(lp);
- if (! pp->dontEnumerate || (flags & EJS_ENUM_HIDDEN)) {
- break;
- }
- lp = lp->next;
- }
- if (lp != head || op->type != EJS_TYPE_OBJECT ||
- !(flags & EJS_ENUM_CLASSES)) {
- break;
- }
-
- op = obj->baseClass;
-
- } while (lp == 0 && op);
-
- return pp;
-}
-
-/******************************************************************************/
-/*
- * Get the next property in sequence. This will only enumerate properties in
- * this class and not in base classes.
- */
-
-EjsProperty *ejsGetNextProperty(EjsProperty *last, int flags)
-{
- EjsProperty *pp;
- EjsObj *obj;
- EjsPropLink *lp, *head;
-
- obj = last->parentObj;
-
- lp = last->link.next;
- head = &obj->link;
- pp = 0;
-
- while (obj) {
- while (lp != head) {
- pp = ejsGetPropertyFromLink(lp);
- if (! pp->dontEnumerate || (flags & EJS_ENUM_HIDDEN)) {
- break;
- }
- lp = lp->next;
- }
- if (lp != head || !(flags & EJS_ENUM_CLASSES)) {
- break;
- }
-
- /*
- * Now iterate over properties in base classes (down the chain)
- */
- if (obj->baseClass == 0) {
- break;
- }
-
- obj = obj->baseClass->objectState;
- if (obj == 0) {
- break;
- }
- }
- return pp;
-}
-
-/******************************************************************************/
-/*
- * Find a variable given a variable name and return the parent object and
- * the variable itself. This routine supports literal variable and property
- * names that may be objects or arrays but may NOT have expressions.
- * Returns -1 on errors or if the variable is not found.
- * FUTURE -- Needs OPT
- */
-
-EjsVar *ejsFindProperty(Ejs *ep, EjsVar **obj, char **property, EjsVar *global,
- EjsVar *local, const char *fullName, int create)
-{
- EjsProperty *currentProp;
- EjsVar *currentObj;
- /* MOB -- WARNING BIG */
- char tokBuf[EJS_MAX_ID], propertyName[EJS_MAX_ID];
- char *token, *next, *cp, *endp;
-
- mprAssert(fullName && *fullName);
-
- currentProp = 0;
- currentObj = 0;
-
- if (global == 0) {
- global = ep->global;
- }
-
- if (obj) {
- *obj = 0;
- }
- if (property) {
- *property = 0;
- }
-
- if (fullName == 0) {
- return 0;
- }
-
- next = (char*) fullName;
- token = getNextVarToken(&next, tokBuf, sizeof(tokBuf));
- mprStrcpy(propertyName, sizeof(propertyName), token);
-
- if (local) {
- currentProp = ejsGetProperty(ep, local, token);
- currentObj = local;
- }
- if (currentProp == 0) {
- currentProp = ejsGetProperty(ep, global, token);
- currentObj = global;
- }
-
- token = getNextVarToken(&next, tokBuf, sizeof(tokBuf));
-
- while (currentObj != 0 && token != 0 && *token) {
-
- if (currentProp == 0) {
- return 0;
- }
- currentObj = ¤tProp->var;
- currentProp = 0;
-
- if (*token == '[') {
- token = getNextVarToken(&next, tokBuf, sizeof(tokBuf));
-
- mprStrcpy(propertyName, sizeof(propertyName), token);
- cp = propertyName;
- if (*cp == '\"') {
- cp++;
- if ((endp = strchr(cp, '\"')) != 0) {
- *endp = '\0';
- }
- } else if (*cp == '\'') {
- cp++;
- if ((endp = strchr(cp, '\'')) != 0) {
- *endp = '\0';
- }
- }
-
- currentProp = ejsGetProperty(ep, currentObj, propertyName);
-
- token = getNextVarToken(&next, tokBuf, sizeof(tokBuf));
- if (*token != ']') {
- return 0;
- }
-
- } else if (*token == '.') {
- token = getNextVarToken(&next, tokBuf, sizeof(tokBuf));
- if (!isalpha((int) token[0]) &&
- token[0] != '_' && token[0] != '$') {
- return 0;
- }
-
- mprStrcpy(propertyName, sizeof(propertyName), token);
- currentProp = ejsGetProperty(ep, currentObj, token);
-
- } else {
- currentProp = ejsGetProperty(ep, currentObj, token);
- }
-
- if (next == 0 || *next == '\0') {
- break;
- }
- token = getNextVarToken(&next, tokBuf, sizeof(tokBuf));
- }
-
- if (obj) {
- *obj = currentObj;
- }
-
-
- if (currentProp == 0 && currentObj >= 0 && create) {
- currentProp = ejsCreateSimpleProperty(ep, currentObj, propertyName);
- }
-
- if (property) {
- *property = currentProp->name;
- }
- return ejsGetVarPtr(currentProp);
-}
-
-/******************************************************************************/
-/*
- * Get the next token as part of a variable specification. This will return
- * a pointer to the next token and will return a pointer to the next token
- * (after this one) in "next". The tokBuf holds the parsed token.
- */
-
-static char *getNextVarToken(char **next, char *tokBuf, int tokBufLen)
-{
- char *start, *cp;
- int len;
-
- start = *next;
- while (isspace((int) *start) || *start == '\n' || *start == '\r') {
- start++;
- }
- cp = start;
-
- if (*cp == '.' || *cp == '[' || *cp == ']') {
- cp++;
- } else {
- while (*cp && *cp != '.' && *cp != '[' && *cp != ']' &&
- !isspace((int) *cp) && *cp != '\n' && *cp != '\r') {
- cp++;
- }
- }
- len = mprMemcpy(tokBuf, tokBufLen - 1, start, cp - start);
- tokBuf[len] = '\0';
-
- *next = cp;
- return tokBuf;
-}
-
-/******************************************************************************/
-
-EjsVar *ejsGetGlobalClass(Ejs *ep)
-{
- return ep->global;
-}
-
-/******************************************************************************/
-/*************************** Property Access Methods **************************/
-/******************************************************************************/
-/*
- * Create an undefined property. This routine calls the object method hooks.
- */
-
-/* MOB -- better suffix than "Method" */
-EjsVar *ejsCreatePropertyMethod(Ejs *ep, EjsVar *op, const char *property)
-{
- EjsVar *vp;
-
- mprAssert(ep);
- mprAssert(op);
- mprAssert(property && *property);
-
- if (op == 0) {
- return 0;
- }
-
- mprAssert(op->type == EJS_TYPE_OBJECT);
- mprAssert(op->objectState);
-
- if (op->objectState == 0) {
- return 0;
- }
-
- if (op->objectState->methods == 0) {
- vp = ejsGetVarPtr(ejsCreateSimpleProperty(ep, op, property));
- } else {
- vp = (op->objectState->methods->createProperty)(ep, op, property);
- }
-
- if (vp == 0) {
- mprAssert(vp);
- op->objectState->hasErrors = 1;
- return 0;
- }
-
- /*
- * FUTURE - find a better way.
- */
- if (op->isArray) {
- ejsSetArrayLength(ep, op, property, 0, 0);
- }
- return vp;
-}
-
-/******************************************************************************/
-
-int ejsDeletePropertyMethod(Ejs *ep, EjsVar *op, const char *property)
-{
- int rc;
-
- mprAssert(ep);
- mprAssert(op);
- mprAssert(property && *property);
-
- if (op == 0) {
- return -1;
- }
-
- mprAssert(op->type == EJS_TYPE_OBJECT);
- mprAssert(op->objectState);
-
- if (op->objectState == 0) {
- return -1;
- }
-
- if (op->objectState->methods == 0) {
- rc = ejsDeleteProperty(ep, op, property);
- } else {
- rc = (op->objectState->methods->deleteProperty)(ep, op, property);
- }
-
- if (rc < 0) {
- op->objectState->hasErrors = 1;
- }
-
- op->objectState->dirty = 1;
-
- return rc;
-}
-
-/******************************************************************************/
-/*
- * Set the value of a property. Create if it does not exist
- * If the object has property accessor methods defined, use those.
- */
-
-EjsVar *ejsSetPropertyMethod(Ejs *ep, EjsVar *op, const char *property,
- const EjsVar *value)
-{
- EjsVar *vp;
-
- mprAssert(ep);
- mprAssert(op);
- mprAssert(property && *property);
- mprAssert(value);
-
- if (op == 0) {
- return 0;
- }
-
- mprAssert(op->type == EJS_TYPE_OBJECT);
- mprAssert(op->objectState);
-
- if (op->objectState == 0) {
- return 0;
- }
-
- if (op->objectState->methods == 0) {
- vp = ejsGetVarPtr(ejsCreateSimpleProperty(ep, op, property));
- if (vp && ejsWriteVar(ep, vp, (EjsVar*) value, EJS_SHALLOW_COPY) < 0) {
- mprAssert(0);
- op->objectState->hasErrors = 1;
- return 0;
- }
-
- } else {
- vp = (op->objectState->methods->setProperty)(ep, op, property, value);
- }
-
- if (vp == 0) {
- mprAssert(vp);
- op->objectState->hasErrors = 1;
- return 0;
- }
-
- if (vp->type == EJS_TYPE_OBJECT) {
- /*
- * We make an object alive (and subject to garbage collection) when
- * it is referenced in some other object. If this is undesirable, the
- * caller should make the object permanent while calling this routine
- * and then afterward clear the alive bit by calling ejsMakeObjLive().
- */
- if (op->objectState != vp->objectState) {
- vp->objectState->alive = 1;
- }
-#if BLD_DEBUG
- {
- EjsProperty *pp = ejsGetPropertyPtr(vp);
- ejsSetVarName(ep, vp, &pp->name[0]);
- if (value->propertyName == 0) {
- ejsSetVarName(ep, (EjsVar*) value, &pp->name[0]);
- }
- }
-#endif
- }
-
- /*
- * Trap assignments to array.length. MOB - find a better way.
- */
- if (vp->isArrayLength) {
- ejsSetArrayLength(ep, op, 0, 0, value);
- }
-
- op->objectState->dirty = 1;
-
- return vp;
-}
-
-/******************************************************************************/
-
-EjsVar *ejsGetPropertyMethod(Ejs *ep, EjsVar *op, const char *property)
-{
- mprAssert(ep);
- mprAssert(op);
- mprAssert(property && *property);
-
- if (op == 0) {
- return 0;
- }
-
- mprAssert(op->type == EJS_TYPE_OBJECT);
- mprAssert(op->objectState);
-
- if (op->objectState == 0) {
- return 0;
- }
-
- if (op->objectState->methods == 0) {
- return ejsGetVarPtr(ejsGetSimpleProperty(ep, op, property));
- } else {
- return (op->objectState->methods->getProperty)(ep, op, property);
- }
-}
-
-/******************************************************************************/
-/*************************** Advisory Locking Support *************************/
-/******************************************************************************/
-#if BLD_FEATURE_MULTITHREAD
-
-void ejsLockObj(EjsVar *vp)
-{
- mprAssert(vp);
- mprAssert(vp->type == EJS_TYPE_OBJECT);
- mprAssert(vp->objectState);
-
- if (vp->objectState->mutex == 0) {
- vp->objectState->mutex = mprCreateLock(vp->objectState->ejs);
- }
- mprLock(vp->objectState->mutex);
-}
-
-/******************************************************************************/
-
-void ejsUnlockObj(EjsVar *vp)
-{
- mprAssert(vp);
- mprAssert(vp->type == EJS_TYPE_OBJECT);
- mprAssert(vp->objectState);
-
- if (vp->objectState->mutex) {
- mprUnlock(vp->objectState->mutex);
- }
-}
-
-#endif
-/******************************************************************************/
-/************************** Internal Support Routines *************************/
-/******************************************************************************/
-/*
- * Create an object.
- */
-
-static EjsObj *createObj(EJS_LOC_DEC(ep, loc))
-{
- EjsObj *op;
- EjsPropLink *lp;
-
- op = (EjsObj*) ejsAllocObj(EJS_LOC_PASS(ep, loc));
- if (op == NULL) {
- return 0;
- }
-
- /*
- * The objectState holds the dummy head for the ordered list of properties
- */
- lp = &op->link;
- lp->next = lp->prev = lp;
-
-#if BLD_DEBUG
- /*
- * This makes it much easier to debug the list
- */
- lp->head = lp;
- lp->propertyName = "dummyHead";
-#endif
-
- return op;
-}
-
-/******************************************************************************/
-/*
- * Destroy an object. Called by the garbage collector if there are no more
- * references to an object.
- */
-
-int ejsDestroyObj(Ejs *ep, EjsObj *obj)
-{
- EjsProperty *pp;
- EjsPropLink *lp, *head, *nextLink;
-
- mprAssert(obj);
-
- if (obj->destructor) {
- EjsVar v;
- memset(&v, 0, sizeof(v));
- v.type = EJS_TYPE_OBJECT;
- v.objectState = obj;
- ejsSetVarName(ep, &v, "destructor");
-
-#if BLD_FEATURE_ALLOC_LEAK_TRACK
- v.gc.allocatedBy = "static";
-#endif
-
- if ((obj->destructor)(ep, &v) < 0) {
- return -1;
- }
- }
- mprFree(obj->objName);
- obj->objName = 0;
-
- /*
- * Just for safety. An object may be marked by a GC on the default
- * interpreter. After destroying, it won't be on the free list and so
- * won't be reset.
- */
- obj->gcMarked = 0;
- obj->visited = 0;
-
- head = &obj->link;
- for (lp = head->next; lp != head; lp = nextLink) {
-
- pp = ejsGetPropertyFromLink(lp);
- nextLink = lp->next;
-
- /*
- * We don't unlink as we are destroying all properties.
- * If an object, we don't need to clear either.
- */
- if (pp->var.type != EJS_TYPE_OBJECT) {
- ejsClearVar(ep, ejsGetVarPtr(pp));
- }
- ejsFree(ep, pp, EJS_SLAB_PROPERTY);
- }
-
-#if BLD_FEATURE_MULTITHREAD
- if (obj->mutex) {
- mprDestroyLock(obj->mutex);
- }
-#endif
-
- ejsFree(ep, obj, EJS_SLAB_OBJ);
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Fast hash. The history of this algorithm is part of lost computer science
- * folk lore.
- */
-
-static int hash(const char *property)
-{
- uint sum;
-
- mprAssert(property);
-
- sum = 0;
- while (*property) {
- sum += (sum * 33) + *property++;
- }
-
- return sum % EJS_OBJ_HASH_SIZE;
-}
-
-/******************************************************************************/
-/*
- * Set a new length for an array. If create is non-null, then it is the name
- * of a new array index. If delete is set, it is the name of an index being
- * deleted. If setLength is set to a variable, it counts the new length for the
- * array. Note that create and delete are ignored if they are non-integer
- * array indexes (eg. normal properties).
- */
-
-void ejsSetArrayLength(Ejs *ep, EjsVar *obj, const char *create,
- const char *delete, const EjsVar *setLength)
-{
- EjsVar *vp;
- char idx[16];
- int oldSize, newSize, i;
-
- vp = ejsGetPropertyAsVar(ep, obj, "length");
- oldSize = vp->integer;
- newSize = oldSize;
-
- if (create) {
- if (isdigit(*create)) {
- i = atoi(create);
- newSize = max(i + 1, oldSize);
- }
- } else if (delete) {
- if (isdigit(*delete)) {
- i = atoi(delete);
- newSize = (i == (oldSize - 1) ? oldSize - 1 : oldSize);
- }
- } else {
- newSize = setLength->integer;
- }
-
- for (i = newSize; i < oldSize; i++) {
- mprItoa(idx, sizeof(idx), i);
- ejsDeleteProperty(ep, obj, idx);
- }
-
- if (ejsWriteVarAsInteger(ep, vp, newSize) == 0) {
- mprAssert(0);
- }
-}
-
-/******************************************************************************/
-
-void ejsClearObjErrors(EjsVar *vp)
-{
- if (vp == 0 || vp->type != EJS_TYPE_OBJECT || vp->objectState == 0) {
- mprAssert(0);
- return;
- }
- vp->objectState->hasErrors = 0;
-}
-
-/******************************************************************************/
-
-int ejsObjHasErrors(EjsVar *vp)
-{
- if (vp == 0 || vp->type != EJS_TYPE_OBJECT || vp->objectState == 0) {
- mprAssert(0);
- return -1;
- }
- return vp->objectState->hasErrors;
-}
-
-/******************************************************************************/
-
-bool ejsIsObjDirty(EjsVar *vp)
-{
- mprAssert(vp->type == EJS_TYPE_OBJECT && vp->objectState);
-
- if (vp->type == EJS_TYPE_OBJECT && vp->objectState) {
- return vp->objectState->dirty;
- }
- return 0;
-}
-
-/******************************************************************************/
-
-void ejsResetObjDirtyBit(EjsVar *vp)
-{
- mprAssert(vp->type == EJS_TYPE_OBJECT && vp->objectState);
-
- if (vp->type == EJS_TYPE_OBJECT && vp->objectState) {
- vp->objectState->dirty = 0;
- }
-}
-
-/******************************************************************************/
-/*
- * Copy a string. Always null terminate.
- */
-
-static int dupString(MPR_LOC_DEC(ctx, loc), uchar **dest, const void *src,
- int nbytes)
-{
- mprAssert(dest);
- mprAssert(src);
-
- if (nbytes > 0) {
- *dest = mprMemdupInternal(MPR_LOC_PASS(ctx, loc), src, nbytes + 1);
- if (*dest == 0) {
- return MPR_ERR_MEMORY;
- }
-
- } else {
- *dest = (uchar*) mprAlloc(ctx, 1);
- nbytes = 0;
- }
-
- (*dest)[nbytes] = '\0';
-
- return nbytes;
-}
-
-/******************************************************************************/
-
-const char *ejsGetVarTypeAsString(EjsVar *vp)
-{
- switch (vp->type) {
- default:
- case EJS_TYPE_UNDEFINED:
- return "undefined";
- case EJS_TYPE_NULL:
- return "null";
- case EJS_TYPE_BOOL:
- return "bool";
- case EJS_TYPE_CMETHOD:
- return "cmethod";
- case EJS_TYPE_FLOAT:
- return "float";
- case EJS_TYPE_INT:
- return "int";
- case EJS_TYPE_INT64:
- return "int64";
- case EJS_TYPE_OBJECT:
- return "object";
- case EJS_TYPE_METHOD:
- return "method";
- case EJS_TYPE_STRING:
- return "string";
- case EJS_TYPE_STRING_CMETHOD:
- return "string method";
- case EJS_TYPE_PTR:
- return "ptr";
- }
-}
-
-/******************************************************************************/
-
-void *ejsGetVarUserPtr(EjsVar *vp)
-{
- mprAssert(vp);
- mprAssert(vp->type == EJS_TYPE_PTR);
-
- if (!ejsVarIsPtr(vp)) {
- return 0;
- }
- return vp->ptr.userPtr;
-}
-
-/******************************************************************************/
-
-void ejsSetVarUserPtr(EjsVar *vp, void *data)
-{
- mprAssert(vp);
- mprAssert(vp->type == EJS_TYPE_PTR);
-
- vp->ptr.userPtr = data;
-}
-
-/******************************************************************************/
-/*
- * Return TRUE if target is a subclass (or the same class) as baseClass.
- */
-
-bool ejsIsSubClass(EjsVar *target, EjsVar *baseClass)
-{
- do {
- if (target->objectState == baseClass->objectState) {
- return 1;
- }
- target = target->objectState->baseClass;
- } while (target);
-
- return 0;
-}
-
-/******************************************************************************/
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim:tw=78
- * vim600: sw=4 ts=4 fdm=marker
- * vim<600: sw=4 ts=4
- */
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff