diff options
Diffstat (limited to 'source4/lib/appweb/ejs-2.0/ejs/ejsVar.c')
| -rw-r--r-- | source4/lib/appweb/ejs-2.0/ejs/ejsVar.c | 4033 |
1 files changed, 0 insertions, 4033 deletions
diff --git a/source4/lib/appweb/ejs-2.0/ejs/ejsVar.c b/source4/lib/appweb/ejs-2.0/ejs/ejsVar.c deleted file mode 100644 index 1f8e9266a3..0000000000 --- a/source4/lib/appweb/ejs-2.0/ejs/ejsVar.c +++ /dev/null @@ -1,4033 +0,0 @@ -/** - * @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 - */ |