add error system

1 files changed, 5 insertions, 8 deletions

diff --git a/src/lexer/ast.cc b/src/lexer/ast.cc
index 755e909..4fbb62a 100644
--- a/src/lexer/ast.cc
+++ b/src/lexer/ast.cc
@@ -9,6 +9,7 @@
 #include "lexer/token.h"
 #include "lexer/symbol_property.h"
 #include "util/io.h"
+#include "error.h"
 
 using namespace std;
 
@@ -112,29 +113,25 @@ void T_lexer::parse(size_t cmd_begin, size_t cmd_end, size_t ast_vec)
     // miss left
     if (symbol_property[token_str].left == EXIST && cmd_begin == found_pos)
     {
-        loggerln("parse: missing left child");
-        exit(-1); // TODO
+        throw T_error{error_code::AST_MISS_LEFT_CHILD, "parse: missing left child"};
     }
 
     // miss right
     if (symbol_property[token_str].right == EXIST && cmd_end-1 == found_pos)
     {
-        loggerln("parse: missing right child");
-        exit(-1); // TODO
+        throw T_error{error_code::AST_MISS_RIGHT_CHILD, "parse: missing right child"};
     }
 
     // should not exist left
     if (symbol_property[token_str].left == NOT_EXIST && cmd_begin != found_pos)
     {
-        loggerln("parse: left child should NOT exist");
-        exit(-1); // TODO
+        throw T_error{error_code::AST_EXIST_LEFT_CHILLD, "parse: left child should NOT exist"};
     }
 
     // should not exist right
     if (symbol_property[token_str].right == NOT_EXIST && cmd_end-1 != found_pos)
     {
-        loggerln("parse: right child should NOT exist");
-        exit(-1); // TODO
+        throw T_error{error_code::AST_EXIST_LEFT_CHILLD, "parse: right child should NOT exist"};
     }
 
     size_t l = alloc_ast();