diff --git a/include/absyn.h b/include/absyn.h
index 0bdc700f..6dc035d3 100644
--- a/include/absyn.h
+++ b/include/absyn.h
@@ -457,7 +457,7 @@ ANEW ANN AST_NEW(Exp*, exp_td, Type_Decl *, const loc_t);
 
 static inline Exp* take_exp(Exp* exp, const uint32_t n) {
   Exp* e = exp;
-  for (uint32_t i = 1; i < n; i++) CHECK_OO((e = e->next));
+  for (uint32_t i = 1; i < n; i++) CHECK_O((e = e->next));
   return e;
 }
 
diff --git a/include/ast_pass.h b/include/ast_pass.h
index 965fcc3b..5900be64 100644
--- a/include/ast_pass.h
+++ b/include/ast_pass.h
@@ -4,12 +4,8 @@
 #ifndef __AST_PASS
 #define __AST_PASS
 
-static inline m_bool dummy_func(const void *a NUSED, const void *b NUSED) {
-  return 1;
-}
-
-static inline bool bdummy_func(const void *a NUSED, const void *b NUSED) {
-  return 1;
+static inline bool dummy_func(const void *a NUSED, const void *b NUSED) {
+  return true;
 }
 
 #define DECL_PRIM_FUNC(prefix, type, arg)                                      \
diff --git a/src/gwion.l b/src/gwion.l
index c5bd3dec..a36f82c1 100644
--- a/src/gwion.l
+++ b/src/gwion.l
@@ -630,7 +630,7 @@ static inline bool scan_rem_macro(Scanner *scan, const m_str id) {
       vector_add(&scan->pp->global_undef, (vtype)sym);
     return ret;
   }
-  return GW_OK;
+  return true;
 }
 
 static bool rem_macro(void* data, const m_str str) {
@@ -642,13 +642,13 @@ static bool rem_macro(void* data, const m_str str) {
   if(ret)
     return true;
   lexer_error(data, "Undefined", ERRORCODE(104));
-  return GW_ERROR;
+  return false;
 }
 
 static inline Macro scan_has_macro(Scanner *scan, const m_str id) {
   const Symbol sym = insert_symbol(scan->st, id);
-  const m_int ret = vector_size(&scan->pp->global_undef) ? vector_find(&scan->pp->global_undef, (vtype)sym) : GW_ERROR;
-  if(ret != GW_ERROR)
+  const m_int ret = vector_size(&scan->pp->global_undef) ? vector_find(&scan->pp->global_undef, (vtype)sym) : -1;
+  if(ret != -1)
     return NULL;
   const Macro global = ppa_has_macro(scan->ppa, insert_symbol(scan->st, id));
   if(global)
@@ -1003,7 +1003,7 @@ int yywrap(void* data) {
 static bool handle_comma(void* data) {
   const Scanner *scan = yyget_extra(data);
   const MacroArg a = scan->pp->entry->args;
-  if(scan->pp->npar > 1) { handle_char(data, ","); return GW_OK;}
+  if(scan->pp->npar > 1) { handle_char(data, ","); return true;}
   if(strcmp(a->name, "__VA_ARGS__")) {
     if(!(scan->pp->entry->args = a->next)) {
       loc_t *loc = yyget_lloc(data);
diff --git a/src/gwion.y b/src/gwion.y
index 481ecbd3..27dde87b 100644
--- a/src/gwion.y
+++ b/src/gwion.y
@@ -283,7 +283,7 @@ specialized: ID traits {
   }
   | "const" type_decl_empty ID {
     $$ = (Specialized) {
-        .tag = MK_TAG($3, @2),
+        .tag = MK_TAG($3, @3),
         .td = $2,
       };
   }
diff --git a/src/lexer.c b/src/lexer.c
index edf48d84..d7066384 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -3998,7 +3998,7 @@ static inline bool scan_rem_macro(Scanner *scan, const m_str id) {
       vector_add(&scan->pp->global_undef, (vtype)sym);
     return ret;
   }
-  return GW_OK;
+  return true;
 }
 
 static bool rem_macro(void* data, const m_str str) {
@@ -4010,13 +4010,13 @@ static bool rem_macro(void* data, const m_str str) {
   if(ret)
     return true;
   lexer_error(data, "Undefined", ERRORCODE(104));
-  return GW_ERROR;
+  return false;
 }
 
 static inline Macro scan_has_macro(Scanner *scan, const m_str id) {
   const Symbol sym = insert_symbol(scan->st, id);
-  const m_int ret = vector_size(&scan->pp->global_undef) ? vector_find(&scan->pp->global_undef, (vtype)sym) : GW_ERROR;
-  if(ret != GW_ERROR)
+  const m_int ret = vector_size(&scan->pp->global_undef) ? vector_find(&scan->pp->global_undef, (vtype)sym) : -1;
+  if(ret != -1)
     return NULL;
   const Macro global = ppa_has_macro(scan->ppa, insert_symbol(scan->st, id));
   if(global)
@@ -4371,7 +4371,7 @@ int yywrap(void* data) {
 static bool handle_comma(void* data) {
   const Scanner *scan = yyget_extra(data);
   const MacroArg a = scan->pp->entry->args;
-  if(scan->pp->npar > 1) { handle_char(data, ","); return GW_OK;}
+  if(scan->pp->npar > 1) { handle_char(data, ","); return true;}
   if(strcmp(a->name, "__VA_ARGS__")) {
     if(!(scan->pp->entry->args = a->next)) {
       loc_t *loc = yyget_lloc(data);
diff --git a/src/parser.c b/src/parser.c
index 6d634b32..355f7a94 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -2794,7 +2794,7 @@ YYLTYPE yylloc = yyloc_default;
 #line 284 "src/gwion.y"
                                {
     (yyval.specialized) = (Specialized) {
-        .tag = MK_TAG((yyvsp[0].sym), (yylsp[-1])),
+        .tag = MK_TAG((yyvsp[0].sym), (yylsp[0])),
         .td = (yyvsp[-1].type_decl),
       };
   }