some fix

include/pocketpy/common/str.hpp

@@ -5,7 +5,6 @@
 #include "pocketpy/common/vector.hpp"
 
 #include <string_view>
-#include <map>
 
 namespace pkpy {
 
@@ -113,9 +112,8 @@ struct StrName {
 
     StrName(const Str& s) : index(get(s.sv()).index) {}
 
-    std::string_view sv() const { return _r_interned()[index]; }
+    std::string_view sv() const;
-
+    const char* c_str() const;
-    const char* c_str() const { return _r_interned()[index].c_str(); }
 
     bool empty() const { return index == 0; }
 
@@ -130,8 +128,6 @@ struct StrName {
     bool operator> (const StrName& other) const noexcept { return sv() > other.sv(); }
 
     static StrName get(std::string_view s);
-    static std::map<std::string_view, uint16_t>& _interned();
-    static std::map<uint16_t, std::string>& _r_interned();
     static uint32_t _pesudo_random_index;
 };
 

include/pocketpy/compiler/expr.hpp

@@ -119,8 +119,8 @@ struct CodeEmitContext {
     int curr_iblock = 0;
     bool is_compiling_class = false;
 
-    std::map<PyVar, int> _co_consts_nonstring_dedup_map;
+    small_map<PyVar, int> _co_consts_nonstring_dedup_map;
-    std::map<std::string_view, int> _co_consts_string_dedup_map;
+    small_map<std::string_view, int> _co_consts_string_dedup_map;
 
     int get_loop() const;
     CodeBlock* enter_block(CodeBlockType type);

include/pocketpy/objects/base.hpp

@@ -102,7 +102,7 @@ struct PyVar final {
     template <typename T>
     obj_get_t<T> obj_get();
 
-    // for std::map<>
+    // std::less<> for map-like containers
     bool operator< (const PyVar& other) const { return memcmp(this, &other, sizeof(PyVar)) < 0; }
 };
 

src/common/str.cpp

@@ -1,10 +1,12 @@
 #include "pocketpy/common/str.hpp"
+#include "pocketpy/common/gil.hpp"
 
 #include <stdexcept>
 #include <cassert>
 #include <ostream>
 #include <algorithm>
 #include <cmath>
+#include <map>
 
 namespace pkpy {
 
@@ -356,19 +358,23 @@ int Str::count(const Str& sub) const {
     return cnt;
 }
 
-std::map<std::string_view, uint16_t>& StrName::_interned() {
+std::map<std::string_view, uint16_t>& _interned() {
     static std::map<std::string_view, uint16_t> interned;
     return interned;
 }
 
-std::map<uint16_t, std::string>& StrName::_r_interned() {
+std::map<uint16_t, std::string>& _r_interned() {
     static std::map<uint16_t, std::string> r_interned;
     return r_interned;
 }
 
+std::string_view StrName::sv() const { return _r_interned()[index]; }
+const char* StrName::c_str() const { return _r_interned()[index].c_str(); }
+
 uint32_t StrName::_pesudo_random_index = 0;
 
 StrName StrName::get(std::string_view s) {
+    PK_GLOBAL_SCOPE_LOCK()
     auto it = _interned().find(s);
     if(it != _interned().end()) return StrName(it->second);
     // generate new index

src/compiler/compiler.cpp

@@ -1191,12 +1191,11 @@ Str Compiler::precompile() {
     ss << "pkpy:" PK_VERSION << '\n';  // L1: version string
     ss << (int)mode() << '\n';         // L2: mode
 
-    std::map<std::string_view, int> token_indices;
+    small_map<std::string_view, int> token_indices;
     for(auto token: tokens) {
         if(is_raw_string_used(token.type)) {
-            auto it = token_indices.find(token.sv());
+            if(!token_indices.contains(token.sv())) {
-            if(it == token_indices.end()) {
+                token_indices.insert(token.sv(), 0);
-                token_indices[token.sv()] = 0;
                 // assert no '\n' in token.sv()
                 for(char c: token.sv())
                     assert(c != '\n');

src/compiler/expr.cpp

@@ -115,14 +115,14 @@ int CodeEmitContext::add_varname(StrName name) {
 }
 
 int CodeEmitContext::add_const_string(std::string_view key) {
-    auto it = _co_consts_string_dedup_map.find(key);
+    int* val = _co_consts_string_dedup_map.try_get(key);
-    if(it != _co_consts_string_dedup_map.end()) {
+    if(val) {
-        return it->second;
+        return *val;
     } else {
         co->consts.push_back(VAR(key));
         int index = co->consts.size() - 1;
         key = co->consts.back().obj_get<Str>().sv();
-        _co_consts_string_dedup_map[key] = index;
+        _co_consts_string_dedup_map.insert(key, index);
         return index;
     }
 }
@@ -130,13 +130,13 @@ int CodeEmitContext::add_const_string(std::string_view key) {
 int CodeEmitContext::add_const(PyVar v) {
     assert(!is_type(v, VM::tp_str));
     // non-string deduplication
-    auto it = _co_consts_nonstring_dedup_map.find(v);
+    int* val = _co_consts_nonstring_dedup_map.try_get(v);
-    if(it != _co_consts_nonstring_dedup_map.end()) {
+    if(val) {
-        return it->second;
+        return *val;
     } else {
         co->consts.push_back(v);
         int index = co->consts.size() - 1;
-        _co_consts_nonstring_dedup_map[v] = index;
+        _co_consts_nonstring_dedup_map.insert(v, index);
         return index;
     }
 }