[clang] b907ad5 - [NFC] Clean up doc comment and implementation for Module::isSubModuleOf.
Adrian Prantl via cfe-commits
cfe-commits at lists.llvm.org
Tue Jul 21 16:23:44 PDT 2020
Author: Adrian Prantl
Date: 2020-07-21T16:23:36-07:00
New Revision: b907ad539a900279443dc8ef8816b6b5a76b1ea1
URL: https://github.com/llvm/llvm-project/commit/b907ad539a900279443dc8ef8816b6b5a76b1ea1
DIFF: https://github.com/llvm/llvm-project/commit/b907ad539a900279443dc8ef8816b6b5a76b1ea1.diff
LOG: [NFC] Clean up doc comment and implementation for Module::isSubModuleOf.
Patch by Varun Gandhi!
Differential Revision: https://reviews.llvm.org/D84087
Added:
Modified:
clang/include/clang/Basic/Module.h
clang/lib/Basic/Module.cpp
Removed:
################################################################################
diff --git a/clang/include/clang/Basic/Module.h b/clang/include/clang/Basic/Module.h
index 6b932a9a84d0..94dd21537966 100644
--- a/clang/include/clang/Basic/Module.h
+++ b/clang/include/clang/Basic/Module.h
@@ -457,8 +457,12 @@ class Module {
/// Determine whether this module is a submodule.
bool isSubModule() const { return Parent != nullptr; }
- /// Determine whether this module is a submodule of the given other
- /// module.
+ /// Check if this module is a (possibly transitive) submodule of \p Other.
+ ///
+ /// The 'A is a submodule of B' relation is a partial order based on the
+ /// the parent-child relationship between individual modules.
+ ///
+ /// Returns \c false if \p Other is \c nullptr.
bool isSubModuleOf(const Module *Other) const;
/// Determine whether this module is a part of a framework,
diff --git a/clang/lib/Basic/Module.cpp b/clang/lib/Basic/Module.cpp
index b3daaa3a4442..b25248de6832 100644
--- a/clang/lib/Basic/Module.cpp
+++ b/clang/lib/Basic/Module.cpp
@@ -173,14 +173,10 @@ bool Module::isAvailable(const LangOptions &LangOpts, const TargetInfo &Target,
}
bool Module::isSubModuleOf(const Module *Other) const {
- const Module *This = this;
- do {
- if (This == Other)
+ for (auto *Parent = this; Parent; Parent = Parent->Parent) {
+ if (Parent == Other)
return true;
-
- This = This->Parent;
- } while (This);
-
+ }
return false;
}
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