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common: Make use of [[nodiscard]] where applicable

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Now that clang-format makes [[nodiscard]] attributes format sensibly, we
can apply them to several functions within the common library to allow
the compiler to complain about any misuses of the functions.
This commit is contained in:
Lioncash 2020-08-14 09:38:45 -04:00
parent 2b601e8636
commit df72480395
34 changed files with 343 additions and 358 deletions
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34
src/common/string_util.h
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@ -12,19 +12,19 @@
namespace Common {
/// Make a string lowercase
std::string ToLower(std::string str);
[[nodiscard]] std::string ToLower(std::string str);
/// Make a string uppercase
std::string ToUpper(std::string str);
[[nodiscard]] std::string ToUpper(std::string str);
std::string StringFromBuffer(const std::vector<u8>& data);
[[nodiscard]] std::string StringFromBuffer(const std::vector<u8>& data);
std::string StripSpaces(const std::string& s);
std::string StripQuotes(const std::string& s);
[[nodiscard]] std::string StripSpaces(const std::string& s);
[[nodiscard]] std::string StripQuotes(const std::string& s);
std::string StringFromBool(bool value);
[[nodiscard]] std::string StringFromBool(bool value);
std::string TabsToSpaces(int tab_size, std::string in);
[[nodiscard]] std::string TabsToSpaces(int tab_size, std::string in);
void SplitString(const std::string& str, char delim, std::vector<std::string>& output);
@ -34,14 +34,15 @@ bool SplitPath(const std::string& full_path, std::string* _pPath, std::string* _
void BuildCompleteFilename(std::string& _CompleteFilename, const std::string& _Path,
const std::string& _Filename);
std::string ReplaceAll(std::string result, const std::string& src, const std::string& dest);
[[nodiscard]] std::string ReplaceAll(std::string result, const std::string& src,
const std::string& dest);
std::string UTF16ToUTF8(const std::u16string& input);
std::u16string UTF8ToUTF16(const std::string& input);
[[nodiscard]] std::string UTF16ToUTF8(const std::u16string& input);
[[nodiscard]] std::u16string UTF8ToUTF16(const std::string& input);
#ifdef _WIN32
std::string UTF16ToUTF8(const std::wstring& input);
std::wstring UTF8ToUTF16W(const std::string& str);
[[nodiscard]] std::string UTF16ToUTF8(const std::wstring& input);
[[nodiscard]] std::wstring UTF8ToUTF16W(const std::string& str);
#endif
@ -50,7 +51,7 @@ std::wstring UTF8ToUTF16W(const std::string& str);
* `other` for equality.
*/
template <typename InIt>
bool ComparePartialString(InIt begin, InIt end, const char* other) {
[[nodiscard]] bool ComparePartialString(InIt begin, InIt end, const char* other) {
for (; begin != end && *other != '\0'; ++begin, ++other) {
if (*begin != *other) {
return false;
@ -64,14 +65,15 @@ bool ComparePartialString(InIt begin, InIt end, const char* other) {
* Creates a std::string from a fixed-size NUL-terminated char buffer. If the buffer isn't
* NUL-terminated then the string ends at max_len characters.
*/
std::string StringFromFixedZeroTerminatedBuffer(const char* buffer, std::size_t max_len);
[[nodiscard]] std::string StringFromFixedZeroTerminatedBuffer(const char* buffer,
std::size_t max_len);
/**
* Creates a UTF-16 std::u16string from a fixed-size NUL-terminated char buffer. If the buffer isn't
* null-terminated, then the string ends at the greatest multiple of two less then or equal to
* max_len_bytes.
*/
std::u16string UTF16StringFromFixedZeroTerminatedBuffer(std::u16string_view buffer,
std::size_t max_len);
[[nodiscard]] std::u16string UTF16StringFromFixedZeroTerminatedBuffer(std::u16string_view buffer,
std::size_t max_len);
} // namespace Common