ValKmjolnir · ValKmjolnir · Nov 5, 2023 · Oct 28, 2023 · Oct 30, 2023 · Oct 30, 2023
diff --git a/README.md b/README.md
diff --git a/doc/README_zh.md b/doc/README_zh.md
diff --git a/doc/dev.md b/doc/dev.md
@@ -1,5 +1,7 @@
 # __Development History__
 
+![buringship](./pic/burningship.png)
+
 ## __Contents__
 
 * [__Parser__](#parser)
@@ -22,6 +24,7 @@
 * [__Release Notes__](#release-notes)
   * [v8.0](#version-80-release)
   * [v11.0](#version-110-release)
+  * [v11.1](#version-111-release)
 
 ## __Parser__
 
@@ -697,3 +700,11 @@ This bug is fixed in `v9.0`. So we suggest that do not use `v8.0`.
 9. Add `CMakeLists.txt` for cmake user(including `Visual Studio`).
 
 10. New ghost type register process.
+
+### __version 11.1 release__
+
+1. Bug fix: debugger in v11.0 is malfunctional.
+
+2. Bug fix: symbol_finder does not check definition in foreach/forindex loop.
+
+3. Change extension syntax `import.xx.xx` to `use xx.xx`.
diff --git a/doc/dev_zh.md b/doc/dev_zh.md
@@ -1,5 +1,7 @@
 # __开发历史记录__
 
+![buringship](./pic/burningship.png)
+
 ## __目录__
 
 * [__语法分析__](#语法分析)
@@ -22,6 +24,7 @@
 * [__发行日志__](#发行日志)
   * [v8.0](#version-80-release)
   * [v11.0](#version-110-release)
+  * [v11.1](#version-111-release)
 
 ## __语法分析__
 
@@ -630,3 +633,11 @@ in __`nasal_dbg.h:215`__: `auto canary=gc.stack+STACK_MAX_DEPTH-1;`
 9. 添加`CMakeLists.txt` (可在`Visual Studio`中使用)。
 
 10. 全新的自定义类型注册流程。
+
+### __version 11.1 release__
+
+1. Bug 修复: 修复 v11.0 的 debugger 无法启动的问题。
+
+2. Bug 修复: symbol_finder 不检查 foreach/forindex 中的迭代变量声明的问题。
+
+3. 扩展语法 `import.xx.xx` 改为 `use xx.xx`。
diff --git a/doc/namespace.md b/doc/namespace.md
@@ -62,3 +62,27 @@ var example_module = func {
     };
 }();
 ```
+
+## Import a module
+
+Here is a module named `std/example_module.nas`:
+
+```nasal
+var a = 1;
+```
+
+Then there's a script file named `test.nas`, import module in this file using this way:
+
+```nasal
+use std.example_module;
+
+println(example_module.a); # 1
+```
+
+Or this way:
+
+```nasal
+import("std/example_module.nas");
+
+println(example_module.a); # 1
+```
diff --git a/doc/nasal-http-test-web.html b/doc/nasal-http-test-web.html
@@ -33,10 +33,11 @@
     </head>
     <body>
         <h1>&nbsp;Nasal | Not another scripting language!</h1>
+        <img src="/doc/pic/social.png" width="900" height="400" style="margin-left: 15px;"><br /></img>
         <div class="badges">
             <a href="https://github.com/ValKmjolnir/Nasal-Interpreter"><img src="https://img.shields.io/github/languages/code-size/ValKmjolnir/Nasal-Interpreter?style=flat-square&logo=github"></img></a>
             <a href="https://github.com/ValKmjolnir/Nasal-Interpreter"><img src="https://img.shields.io/github/v/release/ValKmjolnir/Nasal-Interpreter?style=flat-square&logo=github"></img></a>
-            <a href="https://github.com/ValKmjolnir/Nasal-Interpreter"><img src="https://img.shields.io/badge/dev-v10.0-blue?style=flat-square&logo=github"></img></a>
+            <a href="https://github.com/ValKmjolnir/Nasal-Interpreter"><img src="https://img.shields.io/badge/dev-v11.2-blue?style=flat-square&logo=github"></img></a>
             <a href="https://github.com/ValKmjolnir/Nasal-Interpreter"><img src="https://img.shields.io/badge/license-GPLv2-green?style=flat-square&logo=github"><br/></img></a>
         </div>
         <h2>&nbsp;Introduction | 介绍</h2>
@@ -79,13 +80,14 @@ <h2>&nbsp;Benchmark | 执行效率</h2>
                 在8.0版本中这个解释器需要跑超过2200秒来绘制这张图。
             </p>
             <p>
-                The figure below is the feigenbaum-figure generated by ppm script written in nasal.
+                The figure below is the feigenbaum-figure and burningship-figure generated by ppm script written in nasal.
             </p>
             <p>
-                下方是使用 nasal 的 ppm 生成脚本生成的 feigenbaum 图形。
+                下方是使用 nasal 的 ppm 生成脚本生成的 feigenbaum 和 burningship 图形。
             </p>
         </text>
         <img src="/doc/pic/feigenbaum.png" width="900" height="550" style="margin-left: 15px;"><br /></img>
+        <img src="/doc/pic/burningship.png" width="900" height="550" style="margin-left: 15px;"><br /></img>
         <h2>&nbsp;Example | 样例代码</h2>
         <form method="get">
             <text style="margin-left: 15px;"> </text>

diff --git a/doc/pic/burningship.png b/doc/pic/burningship.png
diff --git a/module/fib.cpp b/module/fib.cpp
@@ -64,7 +64,7 @@ var set_new_ghost(var* args, usize size, gc* ngc) {
         return nil;
     }
     f64 num = args[1].num();
-    *((u32*)res.ghost().pointer) = static_cast<u32>(num);
+    *(reinterpret_cast<u32*>(res.ghost().pointer)) = static_cast<u32>(num);
     std::cout << "set_new_ghost: successfully set ghost = " << num << "\n";
     return nil;
 }

diff --git a/module/libfib.nas b/module/libfib.nas
@@ -1,4 +1,4 @@
-import.std.dylib;
+use std.dylib;
 
 var _dl = dylib.dlopen("libfib."~(os.platform()=="windows"?"dll":"so"));
 

diff --git a/module/libkey.nas b/module/libkey.nas
@@ -1,4 +1,4 @@
-import.std.dylib;
+use std.dylib;
 
 var (
     kbhit,

diff --git a/module/libmat.nas b/module/libmat.nas
@@ -1,4 +1,4 @@
-import.std.dylib;
+use std.dylib;
 
 var _dl = dylib.dlopen("libmat."~(os.platform()=="windows"?"dll":"so"));
 

diff --git a/module/libsock.nas b/module/libsock.nas
@@ -1,4 +1,4 @@
-import.std.dylib;
+use std.dylib;
 
 var socket=func(){
     var lib=dylib.dlopen("libnasock"~(os.platform()=="windows"?".dll":".so"));

diff --git a/module/nasocket.cpp b/module/nasocket.cpp
@@ -71,7 +71,7 @@ var nas_bind(var* args, usize size, gc* ngc) {
     server.sin_port = htons(args[2].num());
     return var::num(static_cast<double>(bind(
         args[0].num(),
-        (sockaddr*)&server,
+        reinterpret_cast<sockaddr*>(&server),
         sizeof(server)
     )));
 }
@@ -99,7 +99,7 @@ var nas_connect(var* args, usize size, gc* ngc) {
     memcpy(&addr.sin_addr, entry->h_addr, entry->h_length);
     return var::num(static_cast<double>(connect(
         args[0].num(),
-        (sockaddr*)&addr,
+        reinterpret_cast<sockaddr*>(&addr),
         sizeof(sockaddr_in)
     )));
 }
@@ -110,11 +110,19 @@ var nas_accept(var* args, usize size, gc* ngc) {
     sockaddr_in client;
     int socklen = sizeof(sockaddr_in);
 #ifdef _WIN32
-    int client_sd = accept(args[0].num(), (sockaddr*)&client, &socklen);
+    int client_sd = accept(
+        args[0].num(),
+        reinterpret_cast<sockaddr*>(&client),
+        &socklen
+    );
 #else
-    int client_sd = accept(args[0].num(), (sockaddr*)&client, (socklen_t*)&socklen);
+    int client_sd = accept(
+        args[0].num(),
+        reinterpret_cast<sockaddr*>(&client),
+        reinterpret_cast<socklen_t*>(&socklen)
+    );
 #endif
-    var res=ngc->temp = ngc->alloc(vm_hash);
+    var res = ngc->temp = ngc->alloc(vm_hash);
     auto& hash = res.hash().elems;
     hash["sd"] = var::num(static_cast<double>(client_sd));
     hash["ip"] = ngc->newstr(inet_ntoa(client.sin_addr));
@@ -159,7 +167,7 @@ var nas_sendto(var* args, usize size, gc* ngc) {
         args[3].str().c_str(),
         args[3].str().length(),
         args[4].num(),
-        (sockaddr*)&addr,
+        reinterpret_cast<sockaddr*>(&addr),
         sizeof(sockaddr_in)
     )));
 }
@@ -205,7 +213,7 @@ var nas_recvfrom(var* args, usize size, gc* ngc) {
         buf,
         args[1].num(),
         args[2].num(),
-        (sockaddr*)&addr,
+        reinterpret_cast<sockaddr*>(&addr),
         &socklen
     );
 #else
@@ -214,8 +222,8 @@ var nas_recvfrom(var* args, usize size, gc* ngc) {
         buf,
         args[1].num(),
         args[2].num(),
-        (sockaddr*)&addr,
-        (socklen_t*)&socklen
+        reinterpret_cast<sockaddr*>(&addr),
+        reinterpret_cast<socklen_t*>(&socklen)
     );
 #endif
     hash["size"] = var::num(static_cast<double>(recvsize));

diff --git a/src/ast_dumper.cpp b/src/ast_dumper.cpp
@@ -4,6 +4,20 @@
 
 namespace nasal {
 
+bool ast_dumper::visit_use_stmt(use_stmt* node) {
+    dump_indent();
+    std::cout << "use" << format_location(node->get_location());
+    push_indent();
+    for(auto i : node->get_path()) {
+        if (i==node->get_path().back()) {
+            set_last();
+        }
+        i->accept(this);
+    }
+    pop_indent();
+    return true;
+}
+
 bool ast_dumper::visit_null_expr(null_expr* node) {
     dump_indent();
     std::cout << "null" << format_location(node->get_location());

diff --git a/src/ast_dumper.h b/src/ast_dumper.h
@@ -5,6 +5,7 @@
 #include <iostream>
 #include <cstring>
 #include <sstream>
+#include <vector>
 
 namespace nasal {
 
@@ -41,6 +42,7 @@ class ast_dumper:public ast_visitor {
     }
 
 public:
+    bool visit_use_stmt(use_stmt*) override;
     bool visit_null_expr(null_expr*) override;
     bool visit_nil_expr(nil_expr*) override;
     bool visit_number_literal(number_literal*) override;

diff --git a/src/ast_visitor.cpp b/src/ast_visitor.cpp
@@ -7,6 +7,13 @@ bool ast_visitor::visit_expr(expr* node) {
     return true;
 }
 
+bool ast_visitor::visit_use_stmt(use_stmt* node) {
+    for(auto i : node->get_path()) {
+        i->accept(this);
+    }
+    return true;
+}
+
 bool ast_visitor::visit_call(call* node) {
     node->accept(this);
     return true;

diff --git a/src/ast_visitor.h b/src/ast_visitor.h
@@ -7,6 +7,7 @@ namespace nasal {
 class ast_visitor {
 public:
     virtual bool visit_expr(expr*);
+    virtual bool visit_use_stmt(use_stmt*);
     virtual bool visit_call(call*);
     virtual bool visit_null_expr(null_expr*);
     virtual bool visit_nil_expr(nil_expr*);

diff --git a/src/coroutine.cpp b/src/coroutine.cpp
@@ -45,7 +45,7 @@ var builtin_cocreate(context* ctx, gc* ngc) {
     coroutine.ctx.top++;
 
     // store old localr on stack
-    coroutine.ctx.top[0] = var::addr((var*)nullptr);
+    coroutine.ctx.top[0] = var::addr(nullptr);
     coroutine.ctx.top++;
 
     // store old pc on stack

diff --git a/src/dylib_lib.cpp b/src/dylib_lib.cpp
@@ -53,9 +53,9 @@ var builtin_dlopen(context* ctx, gc* ngc) {
 
     // get "get" function, to get the register table
 #ifdef _WIN32
-    void* register_table_get_function = (void*)GetProcAddress(
+    void* register_table_get_function = reinterpret_cast<void*>(GetProcAddress(
         static_cast<HMODULE>(library_object.ghost().pointer), "get"
-    );
+    ));
 #else
     void* register_table_get_function = dlsym(
         library_object.ghost().pointer, "get"

diff --git a/src/io_lib.cpp b/src/io_lib.cpp
@@ -5,9 +5,6 @@ namespace nasal {
 const auto file_type_name = "file";
 
 void filehandle_destructor(void* ptr) {
-    if (static_cast<FILE*>(ptr)==stdin) {
-        return;
-    }
     fclose(static_cast<FILE*>(ptr));
 }
 
@@ -207,6 +204,25 @@ var builtin_eof(context* ctx, gc* ngc) {
     ));
 }
 
+var builtin_stdin(context* ctx, gc* ngc) {
+    auto file_descriptor = ngc->alloc(vm_obj);
+    file_descriptor.ghost().set(file_type_name, nullptr, stdin);
+    return file_descriptor;
+}
+
+var builtin_stdout(context* ctx, gc* ngc) {
+    auto file_descriptor = ngc->alloc(vm_obj);
+    file_descriptor.ghost().set(file_type_name, nullptr, stdout);
+    return file_descriptor;
+}
+
+var builtin_stderr(context* ctx, gc* ngc) {
+    auto file_descriptor = ngc->alloc(vm_obj);
+    file_descriptor.ghost().set(file_type_name, nullptr, stderr);
+    return file_descriptor;
+}
+
+
 nasal_builtin_table io_lib_native[] = {
     {"__readfile", builtin_readfile},
     {"__fout", builtin_fout},
@@ -220,6 +236,9 @@ nasal_builtin_table io_lib_native[] = {
     {"__readln", builtin_readln},
     {"__stat", builtin_stat},
     {"__eof", builtin_eof},
+    {"__stdin", builtin_stdin},
+    {"__stdout", builtin_stdout},
+    {"__stderr", builtin_stderr},
     {nullptr, nullptr}
 };
 

diff --git a/src/io_lib.h b/src/io_lib.h
@@ -32,6 +32,9 @@ var builtin_tell(context*, gc*);
 var builtin_readln(context*, gc*);
 var builtin_stat(context*, gc*);
 var builtin_eof(context*, gc*);
+var builtin_stdin(context*, gc*);
+var builtin_stdout(context*, gc*);
+var builtin_stderr(context*, gc*);
 
 extern nasal_builtin_table io_lib_native[];
 

diff --git a/src/nasal_ast.cpp b/src/nasal_ast.cpp
@@ -7,6 +7,16 @@ void expr::accept(ast_visitor* visitor) {
     visitor->visit_expr(this);
 }
 
+use_stmt::~use_stmt() {
+    for(auto i : path) {
+        delete i;
+    }
+}
+
+void use_stmt::accept(ast_visitor* visitor) {
+    visitor->visit_use_stmt(this);
+}
+
 void call::accept(ast_visitor* visitor) {
     visitor->visit_call(this);
 }