1 //===--- OptionUtils.cpp - Utilities for command line arguments -----------===//
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 #include "clang/Basic/Diagnostic.h"
10 #include "clang/Basic/DiagnosticDriver.h"
11 #include "clang/Driver/OptionUtils.h"
12 #include "llvm/Option/ArgList.h"
13 
14 using namespace clang;
15 using namespace llvm::opt;
16 
17 namespace {
18 template <typename IntTy>
19 IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
20                              IntTy Default, DiagnosticsEngine *Diags,
21                              unsigned Base) {
22   IntTy Res = Default;
23   if (Arg *A = Args.getLastArg(Id)) {
24     if (StringRef(A->getValue()).getAsInteger(Base, Res)) {
25       if (Diags)
26         Diags->Report(diag::err_drv_invalid_int_value)
27             << A->getAsString(Args) << A->getValue();
28     }
29   }
30   return Res;
31 }
32 } // namespace
33 
34 namespace clang {
35 
36 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
37                        DiagnosticsEngine *Diags, unsigned Base) {
38   return getLastArgIntValueImpl<int>(Args, Id, Default, Diags, Base);
39 }
40 
41 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
42                                uint64_t Default, DiagnosticsEngine *Diags,
43                                unsigned Base) {
44   return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags, Base);
45 }
46 
47 } // namespace clang
48