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//
// MGRTModuleLoader.m
// MySQL GRT
//
// Created by Alfredo Kojima on 05/8/23.
// Copyright 2005 MySQL AB. All rights reserved.
//
#import "MGRTModuleLoader.h"
#include "myx_grt_private.h"
#include <objc/objc-class.h>
typedef struct MYX_GRT_FUNCTION_PRIVATE
{
id target;
SEL selector;
} MYX_OBJC_FUNCTION;
@implementation MGRTModuleLoader
static MYX_GRT_ERROR objc_call_function(MYX_GRT_FUNCTION *function, MYX_GRT_VALUE *value, MYX_GRT_VALUE **retval);
- (id)initWithGRT:(MYX_GRT*)grt
{
self = [super init];
if (self != nil)
{
_grt= grt;
}
return self;
}
- (MYX_GRT_MODULE_LOADER*)initLoader
{
MYX_GRT_MODULE_LOADER *loader= g_new0(MYX_GRT_MODULE_LOADER, 1);
loader->grt= _grt;
loader->loader_type= MYX_OBJC_MODULE_TYPE;
loader->priv= NULL;
loader->init_module= NULL;
loader->call_function= objc_call_function;
loader->extensions_num= 0;
loader->extensions= NULL;
return loader;
}
static MYX_GRT_FUNCTION *gatherObjectFunctions(MYX_GRT_MODULE *module, id object, unsigned int *count)
{
MYX_GRT_FUNCTION *funcList= 0;
void *iterator = 0;
struct objc_method_list *mlist;
*count= 0;
mlist = class_nextMethodList([object class], &iterator);
while (mlist != NULL)
{
int i;
for (i= 0; i < mlist->method_count; i++)
{
SEL selector= mlist->method_list[i].method_name;
if (method_getNumberOfArguments(mlist->method_list+i) == 3 &&
[object performSelector:@selector(exportsMethod:)
withObject:NSStringFromSelector(selector)])
{
MYX_OBJC_FUNCTION *priv= g_new0(MYX_OBJC_FUNCTION, 1);
char *sel= g_strdup([NSStringFromSelector(selector) UTF8String]);
char *ptr= strchr(sel, ':');
if (ptr) *ptr= 0;
priv->selector= selector;
priv->target= object;
*count= *count+1;
funcList= g_realloc(funcList, sizeof(MYX_GRT_FUNCTION)**count);
memset(funcList+*count-1, 0, sizeof(MYX_GRT_FUNCTION));
funcList[*count-1].module= module;
funcList[*count-1].name= sel;
funcList[*count-1].priv= priv;
}
}
mlist = class_nextMethodList([object class], &iterator);
}
return funcList;
}
- (MYX_GRT_MODULE*)registerObject:(id)anObject
asModule:(NSString*)moduleName
{
MYX_GRT_MODULE *module;
MYX_GRT_ERROR error;
GRT_ENTER(_grt);
// init internal module descriptor
module= g_new0(MYX_GRT_MODULE, 1);
module->loader= myx_grt_get_loader_of_type(_grt, MYX_OBJC_MODULE_TYPE);
module->priv= NULL;
module->name= g_strdup([moduleName UTF8String]);
module->path= NULL;
module->functions_num= 0;
module->functions= gatherObjectFunctions(module, anObject, &module->functions_num);
module->extends= NULL;
error= myx_grt_add_module(_grt, module);
if (error != MYX_GRT_NO_ERROR)
GRT_RETURN(_grt, NULL, MYX_GRT_MODULE *);
else
GRT_RETURN(_grt, module, MYX_GRT_MODULE *);
}
static MYX_GRT_ERROR objc_call_function(MYX_GRT_FUNCTION *function, MYX_GRT_VALUE *value, MYX_GRT_VALUE **retval)
{
MYX_OBJC_FUNCTION *bfunc= (MYX_OBJC_FUNCTION*)function->priv;
MYX_GRT_ERROR error= MYX_GRT_NO_ERROR;
// check if a parameter list was submitted
if ((myx_grt_value_get_type(value) == MYX_LIST_VALUE) && (myx_grt_bridge_list_item_count(value) > 0))
{
unsigned int i;
NSMutableArray *newArgs= [[NSMutableArray alloc] init];
for (i= 0; i < myx_grt_bridge_list_item_count(value); i++)
{
MYX_GRT_VALUE *arg= myx_grt_bridge_list_item_get(value, i, 0);
// if the arg is a string, check if the string starts "global::"
if ( (myx_grt_value_get_type(arg) == MYX_STRING_VALUE) &&
str_beginswith(myx_grt_bridge_value_as_string(arg), "global::") )
{
// if so, take the "real" grt global value instead of the string
const char *path= myx_grt_bridge_value_as_string(arg)+8;
arg= myx_grt_dict_item_get_by_path((MYX_GRT *)(function->module->priv),
myx_grt_get_root((MYX_GRT *)(function->module->priv)), path);
}
switch (myx_grt_value_get_type(arg))
{
case MYX_STRING_VALUE:
[newArgs addObject:[NSString stringWithUTF8String:myx_grt_value_as_string(arg)]];
break;
case MYX_INT_VALUE:
[newArgs addObject:[NSNumber numberWithInt:myx_grt_value_as_int(arg)]];
break;
case MYX_REAL_VALUE:
[newArgs addObject:[NSNumber numberWithDouble:myx_grt_value_as_real(arg)]];
break;
default:
[newArgs addObject:[NSValue valueWithPointer:arg]];
break;
}
}
*retval= (MYX_GRT_VALUE*)[bfunc->target performSelector:bfunc->selector withObject:newArgs];
[newArgs release];
}
else
{
id theArg= nil;
if (value)
{
switch (myx_grt_value_get_type(value))
{
case MYX_STRING_VALUE:
theArg= [NSString stringWithUTF8String:myx_grt_value_as_string(value)];
break;
case MYX_INT_VALUE:
theArg= [NSNumber numberWithInt:myx_grt_value_as_int(value)];
break;
case MYX_REAL_VALUE:
theArg= [NSNumber numberWithDouble:myx_grt_value_as_real(value)];
break;
default:
theArg= [NSValue valueWithPointer:value];
break;
}
}
*retval= (MYX_GRT_VALUE*)[bfunc->target performSelector:bfunc->selector withObject:theArg];
}
return error;
}
@end
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