change name of enum:ast_hashmember->ast_pair, ast_new_iter->ast_iter

change ast_hashmember to ast_pair is because this type in fact is the same as std::pair<std::string,nasal_ref> in C++

nasal_ast.h

@@ -14,7 +14,7 @@ enum ast_node
     ast_func,        // func keyword
     ast_hash,        // hash, basic value type
     ast_vec,         // vector, basic value type
-    ast_hashmember,  // elements in hashmap
+    ast_pair,        // pair of key and value in hashmap
     ast_call,        // mark a sub-tree of calling an identifier
     ast_callh,       // id.name
     ast_callv,       // id[index]
@@ -49,7 +49,7 @@ enum ast_node
     ast_forindex,    // forindex keyword
     ast_foreach,     // foreach keyword
     ast_while,       // while
-    ast_new_iter,    // iterator, used in forindex/foreach
+    ast_iter,        // iterator, used in forindex/foreach
     ast_conditional, // mark a sub-tree of conditional expression
     ast_if,          // if keyword
     ast_elsif,       // elsif keyword

nasal_codegen.h

@@ -294,7 +294,7 @@ void nasal_codegen::find_symbol(const nasal_ast& node)
         find_symbol(node[1]);
     }
     // find iterator(foreach, forindex), check
-    else if(node.type()==ast_new_iter)
+    else if(node.type()==ast_iter)
         add_sym(node[0].str());
     // check children
     else
@@ -528,7 +528,7 @@ void nasal_codegen::call_func(const nasal_ast& ast)
 {
     if(!ast.size())
         gen(op_callfv,0,ast.line());
-    else if(ast[0].type()==ast_hashmember)
+    else if(ast[0].type()==ast_pair)
     {
         hash_gen(ast);
         gen(op_callfh,0,ast.line());
@@ -847,7 +847,7 @@ void nasal_codegen::forindex_gen(const nasal_ast& ast)
     gen(op_cnt,0,ast[1].line());
     int ptr=code.size();
     gen(op_findex,0,ast.line());
-    if(ast[0].type()==ast_new_iter)
+    if(ast[0].type()==ast_iter)
     {
         const std::string& str=ast[0][0].str();
         local.empty()?
@@ -875,7 +875,7 @@ void nasal_codegen::foreach_gen(const nasal_ast& ast)
     gen(op_cnt,0,ast.line());
     int ptr=code.size();
     gen(op_feach,0,ast.line());
-    if(ast[0].type()==ast_new_iter)
+    if(ast[0].type()==ast_iter)
     {
         const std::string& str=ast[0][0].str();
         local.empty()?

nasal_err.h

@@ -67,10 +67,8 @@ public:
     {
         ++error;
         if(!line)
-        {
             std::cerr<<"["<<stage<<"] "<<file<<": "<<info<<'\n';
-            return;
+        else
-        }
             std::cerr<<"["<<stage<<"] "<<file<<":"<<line<<" "<<info<<"\n"<<res[line-1]<<'\n';
     }
     void chkerr(){if(error)std::exit(1);}

nasal_import.h

@@ -22,9 +22,9 @@ bool nasal_import::check_import(const nasal_ast& node)
 /*
 only this kind of node can be recognized as 'import':
     call
-        id:import
+    |_id:import
-        call_func
+    |_call_func
-            string:'filename'
+      |_string:'filename'
 */
     return (
         node.type()==ast_call &&

nasal_parse.h

@@ -63,7 +63,7 @@ private:
     nasal_ast id();
     nasal_ast vec();
     nasal_ast hash();
-    nasal_ast hmem();
+    nasal_ast pair();
     nasal_ast func();
     nasal_ast args();
     nasal_ast lcurve_expr();
@@ -305,7 +305,7 @@ nasal_ast nasal_parse::hash()
     match(tok_lbrace);
     while(tokens[ptr].type!=tok_rbrace)
     {
-        node.add(hmem());
+        node.add(pair());
         if(tokens[ptr].type==tok_comma)
             match(tok_comma);
         else if(tokens[ptr].type==tok_id || tokens[ptr].type==tok_str)// first set of hashmember
@@ -316,9 +316,9 @@ nasal_ast nasal_parse::hash()
     match(tok_rbrace,"expected \'}\' when generating hash");
     return node;
 }
-nasal_ast nasal_parse::hmem()
+nasal_ast nasal_parse::pair()
 {
-    nasal_ast node(tokens[ptr].line,ast_hashmember);
+    nasal_ast node(tokens[ptr].line,ast_pair);
     if(tokens[ptr].type==tok_id)
     {
         node.add(id());
@@ -715,7 +715,7 @@ nasal_ast nasal_parse::callf()
     match(tok_lcurve);
     while(tokens[ptr].type!=tok_rcurve)
     {
-        node.add(special_call?hmem():calc());
+        node.add(special_call?pair():calc());
         if(tokens[ptr].type==tok_comma)
             match(tok_comma);
         else if(tokens[ptr].type==tok_eof)
@@ -935,7 +935,7 @@ nasal_ast nasal_parse::iter_gen()
     if(tokens[ptr].type==tok_var)
     {
         match(tok_var);
-        node.set_type(ast_new_iter);
+        node.set_type(ast_iter);
         node.add(id());
         match(tok_id);
     }