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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /tools/clang-tidy/test/performance-implicit-conversion-in-loop.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/clang-tidy/test/performance-implicit-conversion-in-loop.cpp')
-rw-r--r-- | tools/clang-tidy/test/performance-implicit-conversion-in-loop.cpp | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tools/clang-tidy/test/performance-implicit-conversion-in-loop.cpp b/tools/clang-tidy/test/performance-implicit-conversion-in-loop.cpp new file mode 100644 index 0000000000..75ed510f3f --- /dev/null +++ b/tools/clang-tidy/test/performance-implicit-conversion-in-loop.cpp @@ -0,0 +1,43 @@ +// Iterator returning by value. +template <typename T> +struct Iterator { + void operator++(); + T operator*(); + bool operator!=(const Iterator& other); +}; + +// The template argument is an iterator type, and a view is an object you can +// run a for loop on. +template <typename T> +struct View { + T begin(); + T end(); +}; + +// With this class, the implicit conversion is a call to the (implicit) +// constructor of the class. +template <typename T> +class ImplicitWrapper { + public: + // Implicit! + ImplicitWrapper(const T& t); +}; + +template <typename T> +class OperatorWrapper { + public: + OperatorWrapper() = delete; +}; + +struct SimpleClass { + int foo; + operator OperatorWrapper<SimpleClass>(); +}; + +typedef View<Iterator<SimpleClass>> SimpleView; + +void ImplicitSimpleClassIterator() { + for (const ImplicitWrapper<SimpleClass>& foo : SimpleView()) {} + for (const ImplicitWrapper<SimpleClass> foo : SimpleView()) {} + for (ImplicitWrapper<SimpleClass> foo : SimpleView()) {} +} |