Application.mm

   1 #include <iostream>
   2 #include <string>
   3
   4 #include <CoreFoundation/CoreFoundation.h>
   5 #include <CoreFoundation/CFLogUtilities.h>
   6
   7 #include <Foundation/Foundation.h>
   8
   9 #include <JavaScriptCore/JSBase.h>
  10 #include <JavaScriptCore/JSValueRef.h>
  11 #include <JavaScriptCore/JSObjectRef.h>
  12 #include <JavaScriptCore/JSContextRef.h>
  13 #include <JavaScriptCore/JSStringRef.h>
  14 #include <JavaScriptCore/JSStringRefCF.h>
  15
  16 #define _trace() do { \
  17     CFLog(kCFLogLevelNotice, CFSTR("_trace(%u)"), __LINE__); \
  18 } while (false)
  19
  20 JSContextRef JSGetContext(void);
  21 void CYThrow(JSContextRef context, id error, JSValueRef *exception);
  22 CFStringRef JSValueToJSONCopy(JSContextRef context, JSValueRef value);
  23
  24 int main() {
  25     for (;;) {
  26         NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
  27
  28         std::cout << ">>> " << std::flush;
  29
  30         std::string line;
  31         if (!std::getline(std::cin, line))
  32             break;
  33
  34         JSStringRef script(JSStringCreateWithUTF8CString(line.c_str()));
  35
  36         JSContextRef context(JSGetContext());
  37
  38         JSValueRef exception(NULL);
  39         JSValueRef result(JSEvaluateScript(context, script, NULL, NULL, 0, &exception));
  40         JSStringRelease(script);
  41
  42         if (exception != NULL)
  43             result = exception;
  44
  45         if (!JSValueIsUndefined(context, result)) {
  46             CFStringRef json;
  47
  48             @try { json:
  49                 json = JSValueToJSONCopy(context, result);
  50             } @catch (id error) {
  51                 CYThrow(context, error, &result);
  52                 goto json;
  53             }
  54
  55             std::cout << [reinterpret_cast<const NSString *>(json) UTF8String] << std::endl;
  56             CFRelease(json);
  57         }
  58
  59         [pool release];
  60     }
  61
  62     return 0;
  63 }