1 //===- OptionUtils.h - Utilities for command line arguments -----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 //  This header contains utilities for command line arguments.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_CLANG_DRIVER_OPTIONUTILS_H
14 #define LLVM_CLANG_DRIVER_OPTIONUTILS_H
15 
16 #include "clang/Basic/Diagnostic.h"
17 #include "clang/Basic/LLVM.h"
18 #include "llvm/Option/OptSpecifier.h"
19 
20 namespace llvm {
21 
22 namespace opt {
23 
24 class ArgList;
25 
26 } // namespace opt
27 
28 } // namespace llvm
29 
30 namespace clang {
31 /// Return the value of the last argument as an integer, or a default. If Diags
32 /// is non-null, emits an error if the argument is given, but non-integral.
33 int getLastArgIntValue(const llvm::opt::ArgList &Args,
34                        llvm::opt::OptSpecifier Id, int Default,
35                        DiagnosticsEngine *Diags = nullptr, unsigned Base = 0);
36 
37 inline int getLastArgIntValue(const llvm::opt::ArgList &Args,
38                               llvm::opt::OptSpecifier Id, int Default,
39                               DiagnosticsEngine &Diags, unsigned Base = 0) {
40   return getLastArgIntValue(Args, Id, Default, &Diags, Base);
41 }
42 
43 uint64_t getLastArgUInt64Value(const llvm::opt::ArgList &Args,
44                                llvm::opt::OptSpecifier Id, uint64_t Default,
45                                DiagnosticsEngine *Diags = nullptr,
46                                unsigned Base = 0);
47 
48 inline uint64_t getLastArgUInt64Value(const llvm::opt::ArgList &Args,
49                                       llvm::opt::OptSpecifier Id,
50                                       uint64_t Default,
51                                       DiagnosticsEngine &Diags,
52                                       unsigned Base = 0) {
53   return getLastArgUInt64Value(Args, Id, Default, &Diags, Base);
54 }
55 
56 } // namespace clang
57 
58 #endif // LLVM_CLANG_DRIVER_OPTIONUTILS_H
59