mirror of
https://github.com/gnustep/libs-base.git
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759a52916e
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@750 72102866-910b-0410-8b05-ffd578937521
135 lines
3.1 KiB
Objective-C
135 lines
3.1 KiB
Objective-C
#include <remote/MethodSignature.h>
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static int
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types_get_size_of_arguments(const char *types)
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{
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const char* type = objc_skip_typespec (types);
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return atoi (type);
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}
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static int
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types_get_number_of_arguments (const char *types)
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{
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int i = 0;
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const char* type = types;
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while (*type)
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{
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type = objc_skip_argspec (type);
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i += 1;
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}
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return i - 1;
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}
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@implementation MethodSignature
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+ fromDescription:(struct objc_method_description *)omd
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fromZone:(NXZone *)aZone
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{
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MethodSignature *newMs = [[MethodSignature alloc] init];
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newMs->sig = *omd;
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newMs->selName = (char*)sel_get_name(omd->name);
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newMs->nargs = types_get_number_of_arguments(omd->types);
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newMs->sizeofParams = types_get_size_of_arguments(omd->types);
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return newMs;
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}
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- encodeMethodParams:(arglist_t)argFrame onto:(id <NXEncoding>)portal
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{
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char *datum;
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const char *type;
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unsigned flags;
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for (type = sig.types;
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(datum = method_get_next_argument(argFrame, &type));)
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{
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flags = objc_get_type_qualifiers(type);
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type = objc_skip_type_qualifiers(type);
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[portal encodeData:datum ofType:type];
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}
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return self;
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}
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- (arglist_t) decodeMethodParamsFrom: (id <NXDecoding>)portal
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{
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arglist_t argFrame = 0; //(marg_list) malloc(sizeofParams);
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char *datum;
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const char *type;
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unsigned flags;
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for (type = sig.types;
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(datum = method_get_next_argument(argFrame, &type));)
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{
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flags = objc_get_type_qualifiers(type);
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type = objc_skip_type_qualifiers(type);
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[portal decodeData:datum ofType:type];
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}
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return argFrame;
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}
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#define ENCODE_RET(RETVAL,TYPE) \
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do { \
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TYPE __r (void* __rf) {__builtin_return(__rf);} \
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TYPE __tmp = __r(RETVAL); \
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[portal encodeData:&__tmp ofType:sig.types]; \
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} while(0);
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/* Note: NeXT's direct passing of the ret value instead of a
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pointer to the ret value means we can't return doubles.
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I'm improving on this by passing a pointer what's
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returns from __builtin_apply() */
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- encodeMethodRet: retframe
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withargs:(void *)argFrame
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onto:(id <NXEncoding>)portal
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{
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/* NOTE: we don't yet handle changing values passed by reference */
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switch (*sig.types)
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{
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case _C_CHR:
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case _C_UCHR:
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ENCODE_RET(retframe, char);
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break;
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case _C_SHT:
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case _C_USHT:
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ENCODE_RET(retframe, short);
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break;
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case _C_INT:
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case _C_UINT:
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ENCODE_RET(retframe, int);
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break;
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case _C_LNG:
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case _C_ULNG:
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ENCODE_RET(retframe, int);
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break;
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case _C_FLT:
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ENCODE_RET(retframe, float);
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break;
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case _C_DBL:
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ENCODE_RET(retframe, double);
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break;
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default:
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[self error:"Can't handle type %s", sig.types];
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}
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return self;
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}
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/* In my version this actually returns the void* to be given to
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__builtin_return. I'm not sure what NeXT's version does */
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- decodeMethodRetFrom:(id <NXDecoding>)portal
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withargs:(void *)aVoidPtr
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{
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//#warning this should be sizeof return
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void *datum = malloc(32); /* this should be sizeof return */
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[portal decodeData:datum ofType:sig.types];
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return datum;
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}
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- (BOOL) isOneway
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{
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return NO;
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}
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@end
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