clang  14.0.0git
OptionUtils.cpp
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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 
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
clang::getLastArgIntValue
int getLastArgIntValue(const llvm::opt::ArgList &Args, llvm::opt::OptSpecifier Id, int Default, DiagnosticsEngine *Diags=nullptr, unsigned Base=0)
Return the value of the last argument as an integer, or a default.
OptionUtils.h
clang::DiagnosticsEngine
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:191
clang::getLastArgUInt64Value
uint64_t getLastArgUInt64Value(const llvm::opt::ArgList &Args, llvm::opt::OptSpecifier Id, uint64_t Default, DiagnosticsEngine *Diags=nullptr, unsigned Base=0)
clang::StructuralEquivalenceKind::Default
@ Default
DiagnosticDriver.h
Id
int Id
Definition: ASTDiff.cpp:191
llvm::opt
Definition: DiagnosticOptions.h:19
Diagnostic.h
Base
clang
Definition: CalledOnceCheck.h:17
clang::DiagnosticsEngine::Report
DiagnosticBuilder Report(SourceLocation Loc, unsigned DiagID)
Issue the message to the client.
Definition: Diagnostic.h:1523