diff --git a/include/pocketpy/str.h b/include/pocketpy/str.h
index bb3de83d..b29dc96d 100644
--- a/include/pocketpy/str.h
+++ b/include/pocketpy/str.h
@@ -60,11 +60,12 @@ struct Str{
 
     friend std::ostream& operator<<(std::ostream& os, const Str& str);
 
+    const char* c_str() const { return data; }
+    std::string_view sv() const { return std::string_view(data, size); }
+    std::string str() const { return std::string(data, size); }
+
     Str substr(int start, int len) const;
     Str substr(int start) const;
-    const char* c_str() const;
-    std::string_view sv() const;
-    std::string str() const;
     Str strip(bool left, bool right, const Str& chars) const;
     Str strip(bool left=true, bool right=true) const;
     Str lstrip() const { return strip(true, false); }
@@ -90,15 +91,17 @@ struct Str{
 
 struct StrName {
     uint16_t index;
-    StrName();
-    explicit StrName(uint16_t index);
-    StrName(const char* s);
-    StrName(const Str& s);
-    std::string_view sv() const;
-    const char* c_str() const;
-    bool empty() const { return index == 0; }
 
-    Str escape() const;
+    StrName(): index(0) {}
+    explicit StrName(uint16_t index): index(index) {}
+    StrName(const char* s): index(get(s).index) {}
+    StrName(const Str& s): index(get(s.sv()).index) {}
+
+    std::string_view sv() const { return _r_interned()[index];}
+    const char* c_str() const { return _r_interned()[index].c_str(); }
+
+    bool empty() const { return index == 0; }
+    Str escape() const { return Str(sv()).escape(); }
 
     bool operator==(const StrName& other) const noexcept {
         return this->index == other.index;
diff --git a/src/str.cpp b/src/str.cpp
index f4d379f9..b0308ffb 100644
--- a/src/str.cpp
+++ b/src/str.cpp
@@ -182,18 +182,6 @@ int utf8len(unsigned char c, bool suppress){
         return substr(start, size - start);
     }
 
-    const char* Str::c_str() const{
-        return data;
-    }
-
-    std::string_view Str::sv() const {
-        return std::string_view(data, size);
-    }
-
-    std::string Str::str() const {
-        return std::string(data, size);
-    }
-
     Str Str::strip(bool left, bool right, const Str& chars) const {
         int L = 0;
         int R = u8_length();
@@ -414,31 +402,10 @@ int utf8len(unsigned char c, bool suppress){
         return StrName(index);
     }
 
-    Str StrName::escape() const {
-        return Str(sv()).escape();
-    }
-
     bool StrName::is_valid(int index) {
         return _r_interned().find(index) != _r_interned().end();
     }
 
-    StrName::StrName(): index(0) {}
-    StrName::StrName(uint16_t index): index(index) {}
-    StrName::StrName(const char* s): index(get(s).index) {}
-    StrName::StrName(const Str& s){
-        index = get(s.sv()).index;
-    }
-
-    std::string_view StrName::sv() const {
-        const std::string& str = _r_interned()[index];
-        return std::string_view(str);
-    }
-
-    const char* StrName::c_str() const{
-        const std::string& str = _r_interned()[index];
-        return str.c_str();
-    }
-
     Str SStream::str(){
         // after this call, the buffer is no longer valid
         buffer.reserve(buffer.size() + 1);  // allocate one more byte for '\0'