mirror of
https://github.com/darlinghq/darling-libobjc2.git
synced 2024-11-27 22:20:35 +00:00
83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
#ifndef OBJC_SELECTOR_H_INCLUDED
|
|
#define OBJC_SELECTOR_H_INCLUDED
|
|
/**
|
|
* Structure used to store the types for a selector. This allows for a quick
|
|
* test to see whether a selector is polymorphic and allows enumeration of all
|
|
* type encodings for a given selector.
|
|
*
|
|
* This is the same size as an objc_selector, so we can allocate them from the
|
|
* objc_selector pool.
|
|
*
|
|
* Note: For ABI v10, we can probably do something a bit more sensible here and
|
|
* make selectors into a linked list.
|
|
*/
|
|
struct sel_type_list
|
|
{
|
|
const char *value;
|
|
struct sel_type_list *next;
|
|
};
|
|
|
|
/**
|
|
* Structure used to store selectors in the list.
|
|
*/
|
|
struct objc_selector
|
|
{
|
|
union
|
|
{
|
|
/**
|
|
* The name of this selector. Used for unregistered selectors.
|
|
*/
|
|
const char *name;
|
|
/**
|
|
* The index of this selector in the selector table. When a selector
|
|
* is registered with the runtime, its name is replaced by an index
|
|
* uniquely identifying this selector. The index is used for dispatch.
|
|
*/
|
|
uintptr_t index;
|
|
};
|
|
/**
|
|
* The Objective-C type encoding of the message identified by this selector.
|
|
*/
|
|
const char * types;
|
|
};
|
|
|
|
/**
|
|
* Returns the untyped variant of a selector.
|
|
*/
|
|
__attribute__((unused))
|
|
static uint32_t get_untyped_idx(SEL aSel)
|
|
{
|
|
SEL untyped = sel_registerTypedName_np(sel_getName(aSel), 0);
|
|
return untyped->index;
|
|
}
|
|
|
|
__attribute__((unused))
|
|
static SEL sel_getUntyped(SEL aSel)
|
|
{
|
|
return sel_registerTypedName_np(sel_getName(aSel), 0);
|
|
}
|
|
|
|
/**
|
|
* Returns whether a selector is mapped.
|
|
*/
|
|
BOOL isSelRegistered(SEL sel);
|
|
|
|
/**
|
|
* Registers the selector. This selector may be returned later, so it must not
|
|
* be freed.
|
|
*/
|
|
SEL objc_register_selector(SEL aSel);
|
|
|
|
/**
|
|
* SELECTOR() macro to work around the fact that GCC hard-codes the type of
|
|
* selectors. This is functionally equivalent to @selector(), but it ensures
|
|
* that the selector has the type that the runtime uses for selectors.
|
|
*/
|
|
#ifdef __clang__
|
|
#define SELECTOR(x) @selector(x)
|
|
#else
|
|
#define SELECTOR(x) (SEL)@selector(x)
|
|
#endif
|
|
|
|
#endif // OBJC_SELECTOR_H_INCLUDED
|