1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*
* MRustC - Rust Compiler
* - By John Hodge (Mutabah/thePowersGang)
*
* include/synext_macro.hpp
* - Macro-style syntax extensions ( `foo!()` )
*/
#pragma once
#ifndef _SYNEXT_MACRO_HPP_
#define _SYNEXT_MACRO_HPP_
//#include "../common.hpp" // for mv$ and other things
#include <string>
#include <memory>
#include <span.hpp>
class TypeRef;
namespace AST {
class Crate;
class Module;
}
class TokenTree;
class TokenStream;
class ExpandProcMacro
{
public:
virtual ::std::unique_ptr<TokenStream> expand(const Span& sp, const AST::Crate& crate, const TokenTree& tt, AST::Module& mod) = 0;
virtual ::std::unique_ptr<TokenStream> expand_ident(const Span& sp, const AST::Crate& crate, const RcString& ident, const TokenTree& tt, AST::Module& mod) {
ERROR(sp, E0000, "macro doesn't take an identifier");
}
};
struct MacroDef;
extern void Register_Synext_Macro(::std::string name, ::std::unique_ptr<ExpandProcMacro> handler);
extern void Register_Synext_Macro_Static(MacroDef* def);
struct MacroDef
{
MacroDef* prev;
::std::string name;
::std::unique_ptr<ExpandProcMacro> def;
MacroDef(::std::string name, ::std::unique_ptr<ExpandProcMacro> def) :
prev(nullptr),
name(::std::move(name)),
def(::std::move(def))
{
Register_Synext_Macro_Static(this);
}
};
#define STATIC_MACRO(ident, _handler_class) static MacroDef s_register_##_handler_class(ident, ::std::unique_ptr<ExpandProcMacro>(new _handler_class()));
#endif
|
