blob: 59593a88e15ddab214f87adf3b4ff57ee5e00ed7 (
plain)
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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
//===-- llvm/MC/MCAsmParserExtension.h - Asm Parser Hooks -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCASMPARSEREXTENSION_H
#define LLVM_MC_MCASMPARSEREXTENSION_H
#include "llvm/MC/MCParser/MCAsmParser.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/SMLoc.h"
namespace llvm {
class Twine;
/// \brief Generic interface for extending the MCAsmParser,
/// which is implemented by target and object file assembly parser
/// implementations.
class MCAsmParserExtension {
MCAsmParserExtension(const MCAsmParserExtension &) LLVM_DELETED_FUNCTION;
void operator=(const MCAsmParserExtension &) LLVM_DELETED_FUNCTION;
MCAsmParser *Parser;
protected:
MCAsmParserExtension();
// Helper template for implementing static dispatch functions.
template<typename T, bool (T::*Handler)(StringRef, SMLoc)>
static bool HandleDirective(MCAsmParserExtension *Target,
StringRef Directive,
SMLoc DirectiveLoc) {
T *Obj = static_cast<T*>(Target);
return (Obj->*Handler)(Directive, DirectiveLoc);
}
bool BracketExpressionsSupported;
public:
virtual ~MCAsmParserExtension();
/// \brief Initialize the extension for parsing using the given \arg
/// Parser. The extension should use the AsmParser interfaces to register its
/// parsing routines.
virtual void Initialize(MCAsmParser &Parser);
/// @name MCAsmParser Proxy Interfaces
/// @{
MCContext &getContext() { return getParser().getContext(); }
MCAsmLexer &getLexer() { return getParser().getLexer(); }
MCAsmParser &getParser() { return *Parser; }
SourceMgr &getSourceManager() { return getParser().getSourceManager(); }
MCStreamer &getStreamer() { return getParser().getStreamer(); }
bool Warning(SMLoc L, const Twine &Msg) {
return getParser().Warning(L, Msg);
}
bool Error(SMLoc L, const Twine &Msg) {
return getParser().Error(L, Msg);
}
bool TokError(const Twine &Msg) {
return getParser().TokError(Msg);
}
const AsmToken &Lex() { return getParser().Lex(); }
const AsmToken &getTok() { return getParser().getTok(); }
bool HasBracketExpressions() const { return BracketExpressionsSupported; }
/// @}
};
} // End llvm namespace
#endif
|
