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Nasal-Interpreter
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Delete ast.h

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Valk Richard Li 2019-10-01 23:10:49 +08:00 committed by GitHub
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commit 10b1b31314
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version0.15/ast.h
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@ -1,82 +0,0 @@
#ifndef __AST_H__
#define __AST_H__
#include "token_type.h"
#include <stack>
#include <list>
#include <cstring>
enum tree_node_type
{
__syntax_tree_begin=128,
__error_syntax,
__null_statement,
__definition,
__assignment,
__loop,
__choose
};
struct node
{
int type;
int line;
std::string content;
std::list<node> children;
};
class abstract_syntax_tree
{
private:
node tree;
std::stack<parse_unit> parser_stack;
public:
abstract_syntax_tree()
{
tree.type=__syntax_tree_begin;
tree.line=0;
tree.content="";
tree.children.clear();
}
void init_parser_stack(std::stack<parse_unit>& temp)
{
parser_stack=temp;
return;
}
void tree_generator(std::list<int>& error_list)
{
while(!parser_stack.empty())
{
int type=parser_stack.top().type;
node child_node;
child_node.line=parser_stack.top().line;
child_node.content="";
child_node.children.clear();
switch(type)
{
case __var:break;
case __id:break;
case __number:break;
case __string:break;
case __if:break;
case __for:break;
case __forindex:break;
case __foreach:break;
case __while:break;
case __semi:child_node.type=__null_statement;break;
default:child_node.type=__error_syntax;break;
}
if(child_node.type==__error_syntax)
error_list.push_back(parser_stack.top().line);
parser_stack.pop();
}
return;
}
void run()
{
;
return;
}
};
#endif