[clang-tidy] Check for suspicious string assignments.

It is possible to assign arbitrary integer types to strings.
Sometimes it is the result of missing to_string call or apostrophes.

Reviewers: alexfh

Differential Revision: http://reviews.llvm.org/D15411

llvm-svn: 255630

1 files changed, 34 insertions, 0 deletions

diff --git a/clang-tools-extra/clang-tidy/misc/StringIntegerAssignmentCheck.h b/clang-tools-extra/clang-tidy/misc/StringIntegerAssignmentCheck.h
new file mode 100644
index 00000000000..072b96aa08e
--- /dev/null
+++ b/clang-tools-extra/clang-tidy/misc/StringIntegerAssignmentCheck.h
@@ -0,0 +1,34 @@
+//===--- StringIntegerAssignmentCheck.h - clang-tidy-------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_STRING_INTEGER_ASSIGNMENT_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_STRING_INTEGER_ASSIGNMENT_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+
+/// Finds instances where an integer is assigned to a string.
+///
+/// For more details see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/misc-string-assignment.html
+class StringIntegerAssignmentCheck : public ClangTidyCheck {
+public:
+  StringIntegerAssignmentCheck(StringRef Name, ClangTidyContext *Context)
+      : ClangTidyCheck(Name, Context) {}
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_STRING_INTEGER_ASSIGNMENT_H
+