update

version3.0/main.cpp

@@ -4,6 +4,7 @@ nasal_resource resource;
 nasal_lexer    lexer;
 nasal_parse    parse;
 std::string    command;
+nasal_runtime  runtime;
 
 void help()
 {
@@ -81,6 +82,25 @@ void ast_func()
 		std::cout<<">> [lexer] error(s) occurred,stop.\n";
 	return;
 }
+void runtime_start()
+{
+	lexer.scanner(resource.get_file());
+	if(!lexer.get_error())
+	{
+		parse.set_toklist(lexer.get_token_list());
+		parse.main_process();
+		if(parse.get_error())
+			std::cout<<">> [parse] error(s) occurred,stop.\n";
+		else
+		{
+			runtime.set_root(parse.get_root());
+			runtime.run();
+		}
+	}
+	else
+		std::cout<<">> [lexer] error(s) occurred,stop.\n";
+	return;
+}
 
 int main()
 {
@@ -135,9 +155,7 @@ int main()
 		else if(command=="ast")
 			ast_func();
 		else if(command=="run")
-		{
-            ;
-		}
+			runtime_start();
 		else if(command=="logo")
 			logo();
 		else if(command=="exit")

version3.0/nasal_gc.h

@@ -29,8 +29,8 @@ public:
 class nasal_function
 {
 private:
-    // this int points to the space in nasal_vm::memory_manager_memory
-    std::list<int> closures;
+    // this int points to the space in nasal_vm::garbage_collector_memory
+    int closure_addr;
     nasal_ast function_tree;
 public:
     nasal_function();
@@ -180,15 +180,13 @@ void nasal_hash::del_elem(std::string key)
 /*functions of nasal_function*/
 nasal_function::nasal_function()
 {
-    closures.clear();
+    closure_addr=-1;
     function_tree.clear();
     return;
 }
 nasal_function::~nasal_function()
 {
-    for(std::list<int>::iterator iter=closures.begin();iter!=closures.end();++iter)
-        nasal_vm.mem_free(*iter);
-    closures.clear();
+    nasal_vm.del_reference(closure_addr);
     function_tree.clear();
     return;
 }

version3.0/nasal_runtime.h

@@ -1,46 +1,56 @@
 #ifndef __NASAL_RUNTIME_H__
 #define __NASAL_RUNTIME_H__
 
+enum runtime_returned_state
+{
+    rt_return=1,
+    rt_break,
+    rt_continue,
+    rt_error,
+    rt_exit_without_error
+};
+
 class nasal_runtime
 {
 private:
-    // global_scope_address is address in garbage_collector_memory,NOT memory_manager_memory
+    // global_scope_address and function_return_address are addresses in garbage_collector_memory
+    int function_returned_address;
     int global_scope_address;
     nasal_ast root;
-    std::stack<int> function_position;
-    std::stack<int> running_stack;
-    std::stack<int> closure_stack;
+    // process functions are private
+    int main_progress();
+    int block_progress();
+    int loop_progress();
+    int conditional_progress();
+    int function_progress();
+    int calculation();
 public:
     nasal_runtime();
     ~nasal_runtime();
+    void set_root(nasal_ast&);
     void run();
 };
 
 nasal_runtime::nasal_runtime()
 {
-    root.clear();
-    while(!function_position.empty())
-        function_position.pop();
-    while(!running_stack.empty())
-        running_stack.pop();
-    while(!closure_stack.empty())
-        closure_stack.pop();
+    this->root.clear();
+    this->global_scope_address=-1;
     return;
 }
 nasal_runtime::~nasal_runtime()
 {
-    root.clear();
-    while(!function_position.empty())
-        function_position.pop();
-    while(!running_stack.empty())
-        running_stack.pop();
-    while(!closure_stack.empty())
-        closure_stack.pop();
+    this->root.clear();
+    this->global_scope_address=-1;
+    return;
+}
+void nasal_runtime::set_root(nasal_ast& parse_result)
+{
+    this->root=parse_result;
     return;
 }
 void nasal_runtime::run()
 {
-    global_scope_address=nasal_vm.gc_alloc();
+    this->global_scope_address=nasal_vm.gc_alloc();
     nasal_vm.gc_get(global_scope_address).set_type(vm_closure);
     nasal_vm.gc_get(global_scope_address).get_closure().add_scope();
 
@@ -48,5 +58,35 @@ void nasal_runtime::run()
     nasal_vm.del_reference(global_scope_address);
     return;
 }
+int nasal_runtime::main_progress()
+{
+    int ret_state=rt_exit_without_error;
+    return ret_state;
+}
+int nasal_runtime::block_progress()
+{
+    int ret_state=rt_exit_without_error;
+    return ret_state;
+}
+int nasal_runtime::loop_progress()
+{
+    int ret_state=rt_exit_without_error;
+    return ret_state;
+}
+int nasal_runtime::conditional_progress()
+{
+    int ret_state=rt_exit_without_error;
+    return ret_state;
+}
+int nasal_runtime::function_progress()
+{
+    int ret_state=rt_exit_without_error;
+    return ret_state;
+}
+int nasal_runtime::calculation()
+{
+    int ret_state=rt_exit_without_error;
+    return ret_state;
+}
 
 #endif