clang-tools
6.0.0
llvm.src
tools
clang
tools
extra
clang-tidy
performance
UnnecessaryCopyInitialization.h
Go to the documentation of this file.
1
//===--- UnnecessaryCopyInitialization.h - clang-tidy------------*- C++ -*-===//
2
//
3
// The LLVM Compiler Infrastructure
4
//
5
// This file is distributed under the University of Illinois Open Source
6
// License. See LICENSE.TXT for details.
7
//
8
//===----------------------------------------------------------------------===//
9
10
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_COPY_INITIALIZATION_H
11
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_COPY_INITIALIZATION_H
12
13
#include "../ClangTidy.h"
14
15
namespace
clang
{
16
namespace
tidy {
17
namespace
performance {
18
19
// The check detects local variable declarations that are copy initialized with
20
// the const reference of a function call or the const reference of a method
21
// call whose object is guaranteed to outlive the variable's scope and suggests
22
// to use a const reference.
23
//
24
// The check currently only understands a subset of variables that are
25
// guaranteed to outlive the const reference returned, namely: const variables,
26
// const references, and const pointers to const.
27
class
UnnecessaryCopyInitialization
:
public
ClangTidyCheck
{
28
public
:
29
UnnecessaryCopyInitialization
(StringRef
Name
,
ClangTidyContext
*Context)
30
:
ClangTidyCheck
(Name, Context) {}
31
void
registerMatchers
(ast_matchers::MatchFinder *Finder)
override
;
32
void
check
(
const
ast_matchers::MatchFinder::MatchResult &Result)
override
;
33
34
private
:
35
void
handleCopyFromMethodReturn(
const
VarDecl &Var,
const
Stmt &BlockStmt,
36
bool
IssueFix,
const
VarDecl *ObjectArg,
37
ASTContext &Context);
38
void
handleCopyFromLocalVar(
const
VarDecl &NewVar,
const
VarDecl &OldVar,
39
const
Stmt &BlockStmt,
bool
IssueFix,
40
ASTContext &Context);
41
};
42
43
}
// namespace performance
44
}
// namespace tidy
45
}
// namespace clang
46
47
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_COPY_INITIALIZATION_H
clang::tidy::performance::UnnecessaryCopyInitialization
Definition:
UnnecessaryCopyInitialization.h:27
Name
StringHandle Name
Definition:
PreprocessorTracker.cpp:525
clang::tidy::performance::UnnecessaryCopyInitialization::registerMatchers
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
Definition:
UnnecessaryCopyInitialization.cpp:33
clang::tidy::ClangTidyCheck
Base class for all clang-tidy checks.
Definition:
ClangTidy.h:127
clang::tidy::performance::UnnecessaryCopyInitialization::UnnecessaryCopyInitialization
UnnecessaryCopyInitialization(StringRef Name, ClangTidyContext *Context)
Definition:
UnnecessaryCopyInitialization.h:29
clang
Definition:
AndroidTidyModule.cpp:28
clang::tidy::ClangTidyContext
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
Definition:
ClangTidyDiagnosticConsumer.h:104
clang::tidy::performance::UnnecessaryCopyInitialization::check
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
Definition:
UnnecessaryCopyInitialization.cpp:80
Generated on Fri Mar 2 2018 13:29:35 for clang-tools by
1.8.13