llvm-project/clang-tools-extra
Richard 99217fa8a0 [clang-tidy] Recognize labelled statements when simplifying boolean exprs
Inside a switch the caseStmt() and defaultStmt() have a nested statement
associated with them.  Similarly, labelStmt() has a nested statement.
These statements were being missed when looking for a compound-if of the
form "if (x) return true; return false;" when the if is nested under one
of these labelling constructs.

Enhance the matchers to look for these nested statements using some
private matcher hasSubstatement() traversal matcher on case, default
and label statements.  Add the private matcher hasSubstatementSequence()
to match the compound "if (x) return true; return false;" pattern.

- Add unit tests for private matchers and corresponding test
  infrastructure
- Add corresponding test file readability-simplify-bool-expr-case.cpp.
- Fix variable name copy/paste error in readability-simplify-bool-expr.cpp.
- Drop the asserts, which were used only for debugging matchers.
- Run clang-format on the whole check.
- Move local functions out of anonymous namespace and declare state, per
  LLVM style guide
- Declare labels constexpr
- Declare visitor arguments as pointer to const
- Drop braces around simple control statements per LLVM style guide
- Prefer explicit arguments over default arguments to methods

Differential Revision: https://reviews.llvm.org/D56303

Fixes #27078
2022-01-28 16:09:46 -07:00
..
clang-apply-replacements [clang-apply-replacements] Correctly handle relative paths 2021-11-11 18:28:43 +00:00
clang-change-namespace Reapply "Support Attr in DynTypedNode and ASTMatchers." 2021-08-06 22:30:32 +02:00
clang-doc [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
clang-include-fixer [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
clang-move [SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text 2021-04-06 07:23:31 -04:00
clang-query [clang-query] Add check to prevent setting srcloc when no introspection is available. 2021-04-28 11:21:35 +01:00
clang-reorder-fields [clang-tooling] Prevent llvm::fatal_error on invalid CLI option 2021-01-29 10:15:06 +01:00
clang-tidy [clang-tidy] Recognize labelled statements when simplifying boolean exprs 2022-01-28 16:09:46 -07:00
clangd [clangd] Fix a typo , => ; in hovertest. 2022-01-27 22:19:09 +01:00
docs [clang-tidy] Add more documentation about check development (NFC) 2022-01-27 09:44:09 -07:00
modularize [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
pp-trace [clang] Let PPCallbacks::PragmaWarning() pass specifier as enum instead of string 2021-09-28 19:47:27 -04:00
test [clang-tidy] Recognize labelled statements when simplifying boolean exprs 2022-01-28 16:09:46 -07:00
tool-template [OpenMP] "UnFix" layering problem with FrontendOpenMP 2020-04-07 14:41:18 -05:00
unittests [clang-tidy] Recognize labelled statements when simplifying boolean exprs 2022-01-28 16:09:46 -07:00
.gitignore
CMakeLists.txt [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
CODE_OWNERS.TXT [clangd] add CODE_OWNERS 2020-01-29 12:43:19 +01:00
LICENSE.TXT
README.txt

README.txt

//===----------------------------------------------------------------------===//
// Clang Tools repository
//===----------------------------------------------------------------------===//

Welcome to the repository of extra Clang Tools.  This repository holds tools
that are developed as part of the LLVM compiler infrastructure project and the
Clang frontend.  These tools are kept in a separate "extra" repository to
allow lighter weight checkouts of the core Clang codebase.

This repository is only intended to be checked out inside of a full LLVM+Clang
tree, and in the 'tools/extra' subdirectory of the Clang checkout.

All discussion regarding Clang, Clang-based tools, and code in this repository
should be held using the standard Clang mailing lists:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

Code review for this tree should take place on the standard Clang patch and
commit lists:
  http://lists.llvm.org/mailman/listinfo/cfe-commits

If you find a bug in these tools, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/