Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: eca2795dd5
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 216 lines (185 sloc) 10.108 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215
// ----------------------------------------------------------------------------
// Project : K7 - Standard Library for V8
// -----------------------------------------------------------------------------
// Author : Sebastien Pierre <sebastien@type-z.org>
// ----------------------------------------------------------------------------
// Creation date : 27-Sep-2008
// Last modification : 09-Apr-2009
// ----------------------------------------------------------------------------

#ifndef __K7_MACROS__
#define __K7_MACROS__

#include <k7.h>
#include <stdarg.h>

using namespace v8;

// ----------------------------------------------------------------------------
//
// TYPE CONVERSION
//
// ----------------------------------------------------------------------------

/**
* These macros are just shorthand to creat V8/JavaScript values that can be
* passed to the V8 API or returned to the JavaScript environment */
#define JS_str(s) v8::String::New(s)
#define JS_str2(s,c) v8::String::New(s,c)
#define JS_int(s) v8::Integer::New(s)
#define JS_undefined v8::Undefined()
#define JS_null v8::Null()
#define JSOBJ_set(target,slot,value) target->Set(JS_str(slot),value)
#define JS_fn(f) v8::FunctionTemplate::New(f)->GetFunction()
#define V8_FT(f) v8::FunctionTemplate::New(f)
#define JS_obj(o) v8::Object::New(o)
#define JS_bool(b) v8::Boolean::New(b)
#define JS_throw(t, s) ThrowException(Exception::t(String::New(s)))
#define JS_error(s) ThrowException(Exception::Error(String::New(s)))

// ----------------------------------------------------------------------------
//
// ARGUMENTS CONVERSION
//
// ----------------------------------------------------------------------------

/**
* This set of macro make it easy to declare a function that can be exported to
* the JavaScript environment.
* See the 'posix.cpp' module for examples. */
#define ARGC args.Length()
#define ARG_COUNT(c) if ( args.Length() != c ) { \
return ThrowException(String::New("Insufficient arguments")); }
#define ARG_BETWEEN(a,b) if ( a <= args.Length() <= b ) {}
#define ARG_int(n,c) int n=(int)(args[c]->Int32Value())
#define ARG_str(v,i) v8::String::AsciiValue v(args[i]);
#define ARG_utf8(v,i) v8::String::Utf8Value v(args[i])
#define ARG_obj(v,i) v8::Local<v8::Object> v=args[i]->ToObject();
#define ARG_obj(v,i) v8::Local<v8::Object> v=args[i]->ToObject();
#define ARG_array(name, c) \
if (!args[(c)]->IsArray()) { \
//std::ostringstream __k7_e; \
//__k7_e << "Exception: argument error." << __func__ << " expects array for argument " << c << "."; \
//return ThrowException(String::New(__k7_e.str().c_str())); \
} \
Handle<Array> name = Handle<Array>::Cast(args[(c)])
#define ARG_fn(name, c) \
Handle<Function> name = Handle<Function>::Cast(args[(c)])

#define THROW(str) return ThrowException(String::New(str))
#define THROW_VERB(tmpl,...) { char msg[1024]; snprintf(msg,1000,tmpl,__VA_ARGS__); THROW(msg); }
// performance freaks use this THROW_VERB :)
//#define THROW_VERB(tmpl,...) THROW("Invocation error")
#define FUN_NAME (*String::AsciiValue(args.Callee()->GetName()->ToString()))

#define PINT(n) 0; if (args.Length()<++_argn || !args[_argn-1]->IsInt32()) \
THROW_VERB("Argument %i of %s, must be an integer\n",_argn,FUN_NAME); \
int n=(int)(args[_argn-1]->Int32Value()); 0
#define PSTR(n) 0; if (args.Length()<++_argn) \
THROW_VERB("Argument %i of %s must be a string\n",_argn,FUN_NAME); \
v8::String::AsciiValue n(args[_argn-1]); 0
#define POBJ(n) 0; if (args.Length()<++_argn || !args[_argn-1]->IsObject()) \
THROW_VERB("Argument %i of %s, must be an object\n",_argn,FUN_NAME); \
v8::Handle<v8::Object> n (args[_argn-1]->ToObject()); 0
#define PFUN(n) 0; if (args.Length()<++_argn || !args[_argn-1]->IsFunction()) \
THROW_VERB("Argument %i of %s, must be a function\n",_argn,FUN_NAME); \
v8::Handle<v8::Function> n (v8::Function::Cast(*args[_argn-1])); 0
#define PWRAP(type,var) 0; if (args.Length()<++_argn || !args[_argn-1]->IsExternal()) \
THROW_VERB("Argument %i of %s, must be an external\n",_argn,FUN_NAME); \
type* var = (type*) v8::External::Cast(*args[_argn-1])->Value(); 0


// ----------------------------------------------------------------------------
//
// FUNCTIONS MACROS
//
// ----------------------------------------------------------------------------

#define FUNCTION_DECL(f) static v8::Handle<v8::Value> f(const v8::Arguments&);
#define FUNCTION(f,...) static v8::Handle<v8::Value> f(const v8::Arguments& args) { \
v8::HandleScope handlescope; \
int _argn=0; \
__VA_ARGS__;
#define FUNCTION_C(f) static v8::Handle<v8::Value> f(const v8::Arguments& args) {
#define END }
#define THIS args.This()
#define STUB return ThrowException(Exception::Error(String::New("Stub - Function not implemented")));
#define SET_INTERNAL(ptr) args.This()->SetInternalField(0, External::New((void*)ptr));
#define GET_INTERNAL(type,var) Local<Value> _intfld = args.This()->GetInternalField(0); \
type var = reinterpret_cast<type>(Handle<External>::Cast(_intfld)->Value());
#define RETURN_SCOPED(x) return handlescope.Close(x)
#define RETURN_INT(i) return handlescope.Close(Integer::New(i))
#define RETURN_WRAPPED(ptr) return v8::External::New(ptr)
#define RETURN_UNDEF return JS_undefined
#define RETURN_WATCHED(ptr,f) Persistent<External> watcher = Persistent<External>::New(External::New(ptr)); \
watcher.MakeWeak(ptr, f); \
return watcher;

// ----------------------------------------------------------------------------
//
// OBJECT MACROS
//
// ----------------------------------------------------------------------------

/**
* This set of macros allow you to declare a new object type, usually because
* you want to set internal data in this object.
* See the 'posix.cpp' module for examples. */

#define OBJECT(name,fields,...) \
v8::Handle<Object> name(__VA_ARGS__) { \
v8::HandleScope handle_scope;\
v8::Handle<v8::FunctionTemplate> __class__ = v8::FunctionTemplate::New();\
v8::Handle<v8::ObjectTemplate> __object__ = __class__->InstanceTemplate();\
__object__->SetInternalFieldCount(fields);\
v8::Handle<v8::Object> self = __object__->NewInstance();

#define INTERNAL(i,value) \
self->SetInternalField(i, v8::External::New((void*)value));

#define EXTERNAL(type,name,object,indice) \
type name = (type) (v8::Local<v8::External>::Cast(object->GetInternalField(indice))->Value());

// ----------------------------------------------------------------------------
//
// CLASS MACROS
//
// ----------------------------------------------------------------------------

#define CLASS(name)\
{ \
v8::Handle<v8::String> __class_name__ = v8::String::New(name); \
v8::Handle<v8::FunctionTemplate> __class__ = v8::FunctionTemplate::New(); \
v8::Handle<v8::ObjectTemplate> __object__ = __class__->InstanceTemplate(); \
v8::Handle<v8::ObjectTemplate> self = __object__; \
__class__->SetClassName(v8::String::New(name));
#define CONSTRUCTOR(c) __class__->SetCallHandler(c);
#define DESTRUCTOR(d) Persistent<Object> _weak_handle = Persistent<Object>::New(__object__); \
_weak_handle.MakeWeak(NULL, d);
#define INTERNAL_FIELDS(i) __object__->SetInternalFieldCount(i);
#define HAS_INTERNAL __object__->SetInternalFieldCount(1);
#define END_CLASS __module__->Set(__class_name__,__class__->GetFunction(),v8::PropertyAttribute(v8::ReadOnly|v8::DontDelete));}

// ----------------------------------------------------------------------------
//
// MODULE MACROS
//
// ----------------------------------------------------------------------------

#define MODULE(symbol,moduleName)\
extern "C" v8::Handle<v8::Object> symbol (v8::Handle<v8::Object>__module__) {\
v8::Handle<v8::Object> self = __module__;
#define END_MODULE return __module__; }

// ----------------------------------------------------------------------------
//
// SCOPE AND BINDING MACROS
//
// ----------------------------------------------------------------------------

#define WITH_CLASS { v8::Handle<v8::Object> self = __class__;
#define WITH_MODULE { v8::Handle<v8::Object> self = __module__;
#define WITH_OBJECT { v8::Handle<v8::Object> self = __object__;

#define SET(s,v) self->Set(JS_str(s),v);
#define SET_int(s,v) self->Set(JS_str(s), JS_int(v));
#define SET_str(s,v) self->Set(JS_str(s), JS_str(v));

#define BIND(s,v) { Handle<Function> f = v8::FunctionTemplate::New(v)->GetFunction(); \
f->SetName(JS_str(s)); \
self->Set(JS_str(s),f); }
#define METHOD(s,v) __object__->Set(JS_str(s),v8::FunctionTemplate::New(v)->GetFunction());
#define BIND_CONST(s,v) self->Set(JS_str(s),v);
#define CLASS_METHOD(s,v) __class__->Set(JS_str(s),v8::FunctionTemplate::New(v)->GetFunction());

// ----------------------------------------------------------------------------
//
// API MACROS
//
// ----------------------------------------------------------------------------

/**
* These macros allow to declare a module initialization function and register
* FUNCTIONs in this module. */
#define LINK_TO(lib)
#define ENVIRONMENT void SetupEnvironment (v8::Handle<v8::Object> global,int argc, char** argv, char** env) {
#define IMPORT(function) extern "C" v8::Handle<v8::Object> function(v8::Handle<v8::Object> module);
#define LOAD(moduleName,function) function(EnsureModule(global,moduleName));
#define EVAL(source) ExecuteString(JS_str(source), JS_undefined, false);


// environment utility functions
void ReportException(const TryCatch *);

#endif
// EOF - vim: ts=4 sw=4 noet
Something went wrong with that request. Please try again.