xxq250/Nasal-Interpreter
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Valk Richard Li
2019-10-14 21:58:02 +08:00
committed by GitHub
parent 6135fd1de1
commit a89eaee28a
2 changed files with 92 additions and 37 deletions
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version1.0/ast_generator.h
+26 -18
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@@ -258,13 +258,18 @@ abstract_syntax_tree generator::hash_generate_expr()
abstract_syntax_tree generator::definition_expr()
{
abstract_syntax_tree node;
std::string id_name;
abstract_syntax_tree id;
std::list<abstract_syntax_tree> name_list;
std::list<abstract_syntax_tree> var_content;
get_token();
if(this_token.type==__left_curve)
{
while(this_token.type!=__right_curve)
{
get_token();
id.set_node_to_id(this_token.content);
name_list.push_back(id);
get_token();
if(this_token.type==__right_curve)
break;
@@ -272,37 +277,43 @@ abstract_syntax_tree generator::definition_expr()
}
else if(this_token.type==__id)
{
id_name=this_token.content;
id.set_node_to_id(this_token.content);
name_list.push_back(id);
}
get_token();
if(this_token.type==__semi)
{
parse.push(this_token);
node.set_definition_expr(name_list,var_content);
return node;
}
get_token();
token t;
t.line=this_token.line;
t.type=__semi;
switch(this_token.type)
{
case __number:node.set_definition_expr(id_name,number_begin_expr());break;
case __string:node.set_definition_expr(id_name,string_begin_expr());break;
case __id:node.set_definition_expr(id_name,identifier_begin_expr());break;
case __func:node.set_definition_expr(id_name,function_generate_expr());parse.push(t);break;
case __number:var_content.push_back(number_begin_expr());break;
case __string:var_content.push_back(string_begin_expr());break;
case __id:var_content.push_back(identifier_begin_expr());break;
case __func:var_content.push_back(function_generate_expr());parse.push(t);break;
case __add_operator:
case __sub_operator:
case __nor_operator:node.set_definition_expr(id_name,one_operator_expr());break;
case __left_bracket:node.set_definition_expr(id_name,list_generate_expr());break;
case __left_brace:node.set_definition_expr(id_name,hash_generate_expr());break;
case __left_curve:node.set_definition_expr(id_name,in_curve_calc_expr());break;
case __nor_operator:var_content.push_back(one_operator_expr());break;
case __left_bracket:var_content.push_back(list_generate_expr());break;
case __left_brace:var_content.push_back(hash_generate_expr());break;
case __left_curve:var_content.push_back(in_curve_calc_expr());break;
default:break;
}
node.set_definition_expr(name_list,var_content);
return node;
}
abstract_syntax_tree generator::assignment_expr()
{
abstract_syntax_tree node;
std::list<abstract_syntax_tree> to_be_changed;
std::list<abstract_syntax_tree> var_content;
get_token();
switch(this_token.type)
{
@@ -318,7 +329,7 @@ abstract_syntax_tree generator::assignment_expr()
case __left_curve:in_curve_calc_expr();break;
default:break;
}
node.set_assignment_expr();
node.set_assignment_expr(to_be_changed,var_content);
return node;
}
bool generator::else_if_check()
@@ -842,16 +853,13 @@ abstract_syntax_tree generator::in_curve_calc_expr()
get_token();
// unfinished
switch(this_token.type)
{
case __add_operator:
case __sub_operator:add_sub_operator_expr();break;
case __sub_operator:node.set_two_operator(this_token.type,node,add_sub_operator_expr());break;
case __mul_operator:
case __div_operator:mul_div_operator_expr();break;
case __link_operator:link_operator_expr();break;
case __div_operator:node.set_two_operator(this_token.type,node,mul_div_operator_expr());break;
case __link_operator:node.set_two_operator(this_token.type,node,link_operator_expr());break;
case __and_operator:
case __or_operator:
case __cmp_equal:
@@ -859,7 +867,7 @@ abstract_syntax_tree generator::in_curve_calc_expr()
case __cmp_less:
case __cmp_more:
case __cmp_less_or_equal:
case __cmp_more_or_equal:compare_operator_expr();break;
case __cmp_more_or_equal:node.set_two_operator(this_token.type,node,compare_operator_expr());break;
default:parse.push(this_token);break;
}
return node;