API/minidom.c

   1 // -*- mode: c++; c-basic-offset: 4 -*-
   2 /*
   3  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
   4  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "JSContextRef.h"
  29 #include "JSNode.h"
  30 #include "JSObjectRef.h"
  31 #include "JSStringRef.h"
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <wtf/Assertions.h>
  35 #include <wtf/UnusedParam.h>
  36
  37 static char* createStringWithContentsOfFile(const char* fileName);
  38 static JSValueRef print(JSContextRef context, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception);
  39
  40 int main(int argc, char* argv[])
  41 {
  42     const char *scriptPath = "minidom.js";
  43     if (argc > 1) {
  44         scriptPath = argv[1];
  45     }
  46
  47     JSGlobalContextRef context = JSGlobalContextCreate(NULL);
  48     JSObjectRef globalObject = JSContextGetGlobalObject(context);
  49
  50     JSStringRef printIString = JSStringCreateWithUTF8CString("print");
  51     JSObjectSetProperty(context, globalObject, printIString, JSObjectMakeFunctionWithCallback(context, printIString, print), kJSPropertyAttributeNone, NULL);
  52     JSStringRelease(printIString);
  53
  54     JSStringRef node = JSStringCreateWithUTF8CString("Node");
  55     JSObjectSetProperty(context, globalObject, node, JSObjectMakeConstructor(context, JSNode_class(context), JSNode_construct), kJSPropertyAttributeNone, NULL);
  56     JSStringRelease(node);
  57
  58     char* scriptUTF8 = createStringWithContentsOfFile(scriptPath);
  59     JSStringRef script = JSStringCreateWithUTF8CString(scriptUTF8);
  60     JSValueRef exception;
  61     JSValueRef result = JSEvaluateScript(context, script, NULL, NULL, 0, &exception);
  62     if (result)
  63         printf("PASS: Test script executed successfully.\n");
  64     else {
  65         printf("FAIL: Test script threw exception:\n");
  66         JSStringRef exceptionIString = JSValueToStringCopy(context, exception, NULL);
  67         size_t exceptionUTF8Size = JSStringGetMaximumUTF8CStringSize(exceptionIString);
  68         char* exceptionUTF8 = (char*)malloc(exceptionUTF8Size);
  69         JSStringGetUTF8CString(exceptionIString, exceptionUTF8, exceptionUTF8Size);
  70         printf("%s\n", exceptionUTF8);
  71         free(exceptionUTF8);
  72         JSStringRelease(exceptionIString);
  73     }
  74     JSStringRelease(script);
  75     free(scriptUTF8);
  76
  77     globalObject = 0;
  78     JSGlobalContextRelease(context);
  79     JSGarbageCollect(context);
  80     printf("PASS: Program exited normally.\n");
  81     return 0;
  82 }
  83
  84 static JSValueRef print(JSContextRef context, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
  85 {
  86     UNUSED_PARAM(object);
  87     UNUSED_PARAM(thisObject);
  88
  89     if (argumentCount > 0) {
  90         JSStringRef string = JSValueToStringCopy(context, arguments[0], exception);
  91         size_t numChars = JSStringGetMaximumUTF8CStringSize(string);
  92         char stringUTF8[numChars];
  93         JSStringGetUTF8CString(string, stringUTF8, numChars);
  94         printf("%s\n", stringUTF8);
  95     }
  96
  97     return JSValueMakeUndefined(context);
  98 }
  99
 100 static char* createStringWithContentsOfFile(const char* fileName)
 101 {
 102     char* buffer;
 103
 104     size_t buffer_size = 0;
 105     size_t buffer_capacity = 1024;
 106     buffer = (char*)malloc(buffer_capacity);
 107
 108     FILE* f = fopen(fileName, "r");
 109     if (!f) {
 110         fprintf(stderr, "Could not open file: %s\n", fileName);
 111         return 0;
 112     }
 113
 114     while (!feof(f) && !ferror(f)) {
 115         buffer_size += fread(buffer + buffer_size, 1, buffer_capacity - buffer_size, f);
 116         if (buffer_size == buffer_capacity) { // guarantees space for trailing '\0'
 117             buffer_capacity *= 2;
 118             buffer = (char*)realloc(buffer, buffer_capacity);
 119             ASSERT(buffer);
 120         }
 121
 122         ASSERT(buffer_size < buffer_capacity);
 123     }
 124     fclose(f);
 125     buffer[buffer_size] = '\0';
 126
 127     return buffer;
 128 }