clang
3.9.0
|
Interesting information about a specific parameter that can't simply be reflected in parameter's type. More...
#include <Type.h>
Public Member Functions | |
ExtParameterInfo () | |
ParameterABI | getABI () const |
Return the ABI treatment of this parameter. More... | |
ExtParameterInfo | withABI (ParameterABI kind) const |
bool | isConsumed () const |
Is this parameter considered "consumed" by Objective-C ARC? Consumed parameters must have retainable object type. More... | |
ExtParameterInfo | withIsConsumed (bool consumed) const |
unsigned char | getOpaqueValue () const |
Static Public Member Functions | |
static ExtParameterInfo | getFromOpaqueValue (unsigned char data) |
Friends | |
bool | operator== (ExtParameterInfo lhs, ExtParameterInfo rhs) |
bool | operator!= (ExtParameterInfo lhs, ExtParameterInfo rhs) |
Interesting information about a specific parameter that can't simply be reflected in parameter's type.
It makes sense to model language features this way when there's some sort of parameter-specific override (such as an attribute) that affects how the function is called. For example, the ARC ns_consumed attribute changes whether a parameter is passed at +0 (the default) or +1 (ns_consumed). This must be reflected in the function type, but isn't really a change to the parameter type.
One serious disadvantage of modelling language features this way is that they generally do not work with language features that attempt to destructure types. For example, template argument deduction will not be able to match a parameter declared as T (*)(U) against an argument of type void (*)(attribute((ns_consumed)) id) because the substitution of T=void, U=id into the former will not produce the latter.
|
inline |
|
inline |
Return the ABI treatment of this parameter.
Definition at line 3104 of file Type.h.
Referenced by checkExtParameterInfos(), clang::CodeGen::CodeGenModule::ConstructAttributeList(), clang::CodeGen::CodeGenFunction::EmitCall(), and clang::CodeGen::CodeGenFunction::EmitFunctionProlog().
|
inlinestatic |
|
inline |
|
inline |
|
inline |
|
inline |
|
friend |
|
friend |