================
@@ -37,10 +40,55 @@ using Id = uint64_t;
/// the current session.
static constexpr Id kCalculateSeq = UINT64_MAX;
+/// A wrapper around a 'std::string' to ensure the contents are valid utf8
+/// during serialization.
+class String {
+public:
+ String(std::string str) : m_str(str) {}
+ String(llvm::StringRef str) : m_str(str.str()) {}
+ String(const char *str) : m_str(str) {}
+ String() = default;
+
+ operator llvm::Twine() { return m_str; }
+ operator std::string &() { return m_str; }
+ operator std::string() const { return m_str; }
+ operator llvm::StringRef() const { return llvm::StringRef(m_str); }
+
+ void clear() { m_str.clear(); }
+ bool empty() const { return m_str.empty(); }
+ const char *c_str() const { return m_str.c_str(); }
+ const char *data() const { return m_str.data(); }
+ std::string str() const { return m_str; }
+ std::string &str() { return m_str; }
+
+private:
+ std::string m_str;
+};
+llvm::json::Value toJSON(const String &s);
+bool fromJSON(const llvm::json::Value &, String &, llvm::json::Path);
+inline bool operator==(const String &a, const String &b) {
+ return a.str() == b.str();
+}
+inline bool operator==(const String &a, const char *b) { return a.str() == b; }
+inline bool operator==(const char *a, const String &b) { return a == b.str(); }
+inline bool operator==(llvm::StringRef a, const String &b) {
+ return a.str() == b.str();
+}
+inline bool operator==(const String &a, llvm::StringRef b) {
+ return a.str() == b.str();
+}
+inline bool operator<(const String &a, const String &b) {
+ return a.str() < b.str();
+}
+inline llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const String &S) {
+ OS << S.str();
+ return OS;
+}
----------------
da-viper wrote:
Could you wrap any string arguments in the operators with llvm::StringRef to
avoid copies for comparison. and rename from a and b to lhs and res.
i.e `llvm::StringRef(lhs) == llvm::StringRef(rhs)`
https://github.com/llvm/llvm-project/pull/181261
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