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
14using namespace clang;
15using namespace llvm::opt;
16
17namespace {
18template <typename IntTy>
19IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
20 IntTy Default, DiagnosticsEngine *Diags,
21 unsigned Base) {
22 IntTy Res = Default;
23 if (Arg *A = Args.getLastArg(Ids: 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
34namespace clang {
35
36int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
37 DiagnosticsEngine *Diags, unsigned Base) {
38 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags, Base);
39}
40
41uint64_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

source code of clang/lib/Driver/OptionUtils.cpp