为BerryMath编写添加了默认导入模块bmlang模块，并在解释器中一开始便导入其并将这个模块的所有方法导入至全局作用域

Author: Link14349

include/interpreter.h

@@ -122,6 +122,7 @@ namespace BM {
 #define BMLMPATH "/usr/local/BM/modules/"
 #endif
 #define DEFAULT_IMPORT_NAME "bmlang"
+#define PASS_MODULE_NAME "__THIS_MODULE_NAME__"
 
         friend class NativeFunction;
 

modules/bmlang/init.bm

@@ -0,0 +1,13 @@
+class Array {
+public:
+    ctor() { }
+    push(n) {
+        this[this.__len] = n;
+        this.__len++;
+    }
+private:
+    __len = 0;
+    __SYSTEM_TYPE__ = "Array";
+}
+
+export Array;

src/interpreter.cpp

@@ -23,6 +23,10 @@ BM::Object *BM::Interpreter::run() {
     set("undefined", new Undefined);
     set("null", new Null);
 
+    if (!child && !(get(PASS_MODULE_NAME) && get(PASS_MODULE_NAME)->value()->type() == STRING && ((String*)get(PASS_MODULE_NAME)->value())->value() == DEFAULT_IMPORT_NAME)) {
+        if (!get(DEFAULT_IMPORT_NAME)) import(exports, DEFAULT_IMPORT_NAME, DEFAULT_IMPORT_NAME);
+        Using(get(DEFAULT_IMPORT_NAME)->value(), new AST::node("bmlang", 0));
+    }
     while (true) {
         if (!child) ast->parse();
 //        if (!ast->rValue()) continue;
@@ -724,6 +728,7 @@ void BM::Interpreter::import(Object* exports, const string& name, const string&
                 script += tmpLine + "\n";
             }
             Interpreter ip(script, name);// import的文件是独立运行的，与import它的脚本连接
+            ip.set(PASS_MODULE_NAME, new String(name));
             auto moduleExports = ip.run();
             if (moduleExports->get(PASS_ERROR)) {
                 std::cerr << "ImportError: Module script wrong at <" << filename << ">:" << ast->line() << std::endl;
@@ -743,6 +748,7 @@ void BM::Interpreter::import(Object* exports, const string& name, const string&
                 script += tmpLine + "\n";
             }
             Interpreter ip(script, name);// import的文件是独立运行的，与import它的脚本连接
+            ip.set(PASS_MODULE_NAME, new String(name));
             auto moduleExports = ip.run();
             if (moduleExports->get(PASS_ERROR)) {
                 std::cerr << "ImportError: Module script wrong at <" << filename << ">:" << ast->line() << std::endl;
@@ -755,13 +761,14 @@ void BM::Interpreter::import(Object* exports, const string& name, const string&
     // 为全局模块
     if (!finish) {
         string path(BMLMPATH + name + (name[nameLen - 1] == '/' ? "init.bm" : "/init.bm"));
-        file.open(name);
+        file.open(path);
         if (file) {
             finish = true;
             while (getline(file, tmpLine)) {
                 script += tmpLine + "\n";
             }
             Interpreter ip(script, name);// import的文件是独立运行的，不与import它的脚本连接
+            ip.set(PASS_MODULE_NAME, new String(name));
             auto moduleExports = ip.run();
             if (moduleExports->get(PASS_ERROR)) {
                 std::cerr << "ImportError: Module script wrong at <" << filename << ">:" << ast->line() << std::endl;