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forked from 0ad/0ad
0ad/source/scripting/JSConversions.cpp
Ykkrosh 1c7e33b528 Remove a load of implicit CStr type conversions, since they're error-prone and can cause silent data loss.
Handle most CStr8/CStrW conversions via UTF-8 instead of effectively
assuming Latin-1.
Return UTF-8 strings from Xeromyces API.

This was SVN commit r8929.
2011-02-17 20:08:20 +00:00

295 lines
6.9 KiB
C++

/* Copyright (C) 2010 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: 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.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "JSConversions.h"
#include "graphics/ObjectManager.h"
#include "maths/scripting/JSInterface_Vector3D.h"
#include "lib/sysdep/sysdep.h" // isfinite
#include "scriptinterface/ScriptInterface.h"
#include <math.h>
#include <cfloat>
// CVector3D
template<> CVector3D* ToNative<CVector3D>( JSContext* cx, JSObject* obj )
{
JSI_Vector3D::Vector3D_Info* v = (JSI_Vector3D::Vector3D_Info*)JS_GetInstancePrivate( cx, obj, &JSI_Vector3D::JSI_class, NULL );
return( v ? v->vector : NULL );
}
template<> JSObject* ToScript<CVector3D>( CVector3D* Native )
{
JSObject* Script = JS_NewObject( g_ScriptingHost.GetContext(), &JSI_Vector3D::JSI_class, NULL, NULL );
JS_SetPrivate( g_ScriptingHost.GetContext(), Script, new JSI_Vector3D::Vector3D_Info( *Native ) );
return( Script );
}
template<> jsval ToJSVal<CVector3D>( const CVector3D& Native )
{
JSObject* Script = JS_NewObject( g_ScriptingHost.GetContext(), &JSI_Vector3D::JSI_class, NULL, NULL );
JS_SetPrivate( g_ScriptingHost.GetContext(), Script, new JSI_Vector3D::Vector3D_Info( Native ) );
return( OBJECT_TO_JSVAL( Script ) );
}
// int
template<> jsval ToJSVal<int>( const int& Native )
{
return( INT_TO_JSVAL( Native ) );
}
template<> jsval ToJSVal<int>( int& Native )
{
return( INT_TO_JSVAL( Native ) );
}
template<> bool ToPrimitive<int>( JSContext* cx, jsval v, int& Storage )
{
JSBool ok = JS_ValueToInt32(cx, v, (int32*)&Storage);
return ok == JS_TRUE;
}
// unsigned
template<> jsval ToJSVal<unsigned>( const unsigned& Native )
{
return( INT_TO_JSVAL( Native ) );
}
template<> jsval ToJSVal<unsigned>( unsigned& Native )
{
return( INT_TO_JSVAL( Native ) );
}
template<> bool ToPrimitive<unsigned>( JSContext* cx, jsval v, unsigned& Storage )
{
int temp;
if(!ToPrimitive<int>(cx, v, temp))
return false;
if(temp < 0)
return false;
Storage = (unsigned)temp;
return true;
}
// long
template<> jsval ToJSVal<long>( const long& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> jsval ToJSVal<long>( long& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> bool ToPrimitive<long>( JSContext* cx, jsval v, long& Storage )
{
int32 tmp;
JSBool ok = JS_ValueToInt32(cx, v, &tmp);
Storage = (long)tmp;
return ok == JS_TRUE;
}
// unsigned long
template<> jsval ToJSVal<unsigned long>( const unsigned long& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> jsval ToJSVal<unsigned long>( unsigned long& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> bool ToPrimitive<unsigned long>( JSContext* cx, jsval v, unsigned long& Storage )
{
int32 tmp;
JSBool ok = JS_ValueToInt32(cx, v, &tmp);
Storage = (unsigned long)tmp;
return ok == JS_TRUE;
}
// see comment at declaration of specialization
#if !GCC_VERSION
#if ARCH_AMD64
template<> jsval ToJSVal<size_t>( const size_t& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> jsval ToJSVal<size_t>( size_t& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> bool ToPrimitive<size_t>( JSContext* cx, jsval v, size_t& Storage )
{
int temp;
if(!ToPrimitive<int>(cx, v, temp))
return false;
if(temp < 0)
return false;
Storage = (size_t)temp;
return true;
}
template<> jsval ToJSVal<ssize_t>( const ssize_t& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> jsval ToJSVal<ssize_t>( ssize_t& Native )
{
return( INT_TO_JSVAL( (int)Native ) );
}
template<> bool ToPrimitive<ssize_t>( JSContext* cx, jsval v, ssize_t& Storage )
{
int temp;
if(!ToPrimitive<int>(cx, v, temp))
return false;
if(temp < 0)
return false;
Storage = (ssize_t)temp;
return true;
}
#endif // #if ARCH_AMD64
#endif // #if !GCC_VERSION
// double
template<> jsval ToJSVal<double>( const double& Native )
{
jsval val = JSVAL_VOID;
JS_NewNumberValue( g_ScriptingHost.getContext(), Native, &val );
return val;
}
template<> jsval ToJSVal<double>( double& Native )
{
jsval val = JSVAL_VOID;
JS_NewNumberValue( g_ScriptingHost.getContext(), Native, &val );
return val;
}
template<> bool ToPrimitive<double>( JSContext* cx, jsval v, double& Storage )
{
JSBool ok = JS_ValueToNumber(cx, v, &Storage);
if (ok == JS_FALSE || !isfinite( Storage ) )
return false;
return true;
}
// float
template<> jsval ToJSVal<float>( const float& Native )
{
jsval val = JSVAL_VOID;
JS_NewNumberValue( g_ScriptingHost.getContext(), Native, &val );
return val;
}
template<> jsval ToJSVal<float>( float& Native )
{
jsval val = JSVAL_VOID;
JS_NewNumberValue( g_ScriptingHost.getContext(), Native, &val );
return val;
}
template<> bool ToPrimitive<float>( JSContext* cx, jsval v, float& Storage )
{
double temp;
if(!ToPrimitive<double>(cx, v, temp))
return false;
Storage = (float)temp;
return true;
}
// bool
template<> jsval ToJSVal<bool>( const bool& Native )
{
return( BOOLEAN_TO_JSVAL( Native ) );
}
template<> jsval ToJSVal<bool>( bool& Native )
{
return( BOOLEAN_TO_JSVAL( Native ) );
}
template<> bool ToPrimitive<bool>( JSContext* cx, jsval v, bool& Storage )
{
JSBool temp;
JSBool ok = JS_ValueToBoolean(cx, v, &temp);
if(ok == JS_FALSE)
return false;
Storage = (temp == JS_TRUE);
return true;
}
// CStrW
template<> bool ToPrimitive<CStrW>( JSContext* UNUSED(cx), jsval v, CStrW& Storage )
{
try
{
Storage = g_ScriptingHost.ValueToUCString( v );
}
catch( PSERROR_Scripting_ConversionFailed )
{
return( false );
}
return( true );
}
template<> jsval ToJSVal<CStrW>( const CStrW& Native )
{
return( STRING_TO_JSVAL( JS_NewUCStringCopyZ( g_ScriptingHost.GetContext(), reinterpret_cast<const jschar*>(Native.utf16().c_str()) ) ) );
}
template<> jsval ToJSVal<CStrW>( CStrW& Native )
{
return( STRING_TO_JSVAL( JS_NewUCStringCopyZ( g_ScriptingHost.GetContext(), reinterpret_cast<const jschar*>(Native.utf16().c_str()) ) ) );
}
// CStr/CStr8
template<> bool ToPrimitive<CStr8>( JSContext* cx, jsval v, CStr8& Storage )
{
std::string str;
if (!ScriptInterface::FromJSVal(cx, v, str))
return false;
Storage = str;
return true;
}
template<> jsval ToJSVal<CStr8>( const CStr8& Native )
{
return( STRING_TO_JSVAL( JS_NewStringCopyZ( g_ScriptingHost.GetContext(), Native.c_str() ) ) );
}
template<> jsval ToJSVal<CStr8>( CStr8& Native )
{
return( STRING_TO_JSVAL( JS_NewStringCopyZ( g_ScriptingHost.GetContext(), Native.c_str() ) ) );
}