From 662fe69f0c2baace96cecb0250b5d00d9fc52633 Mon Sep 17 00:00:00 2001
From: fennecdjay <astor.jeremie@wanadoo.fr>
Date: Wed, 2 Oct 2019 00:04:02 +0200
Subject: [PATCH] :art: Dedicated check_implicit

---
 src/parse/check.c | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/src/parse/check.c b/src/parse/check.c
index fbb4fc07..eecbe7c2 100644
--- a/src/parse/check.c
+++ b/src/parse/check.c
@@ -28,7 +28,7 @@ ANN static Type   check_exp(const Env env, Exp exp);
 ANN static m_bool check_stmt_list(const Env env, Stmt_List list);
 ANN m_bool check_class_def(const Env env, const Class_Def class_def);
 
-ANN static m_bool check_implicit(const Env env, const m_str str,
+ANN static m_bool _check_implicit(const Env env, const m_str str,
       const Exp e, const Type t) {
   struct Implicit imp = { .e=e, .t=t, .pos=e->pos };
   struct Op_Import opi = { .op=insert_symbol(str), .lhs=e->type,
@@ -38,6 +38,22 @@ ANN static m_bool check_implicit(const Env env, const m_str str,
   return GW_OK;
 }
 
+ANN static m_bool check_internal(const Env env, const Symbol sym,
+      const Exp e, const Type t) {
+  struct Implicit imp = { .e=e, .t=t, .pos=e->pos };
+  struct Op_Import opi = { .op=sym, .lhs=e->type,
+        .rhs=t, .data=(uintptr_t)&imp, .pos=e->pos };
+  CHECK_OB(op_check(env, &opi))
+  e->nspc = env->curr;
+  return GW_OK;
+}
+
+ANN static inline m_bool check_implicit(const Env env, const Exp e, const Type t) {
+  const Symbol sym = insert_symbol("@implicit");
+  return check_internal(env, sym, e, t);
+}
+
+
 ANN m_bool check_exp_array_subscripts(Env env, Exp exp) {
   CHECK_OB(check_exp(env, exp))
   do if(isa(exp->type, env->gwion->type[et_int]) < 0)
@@ -179,7 +195,7 @@ ANN static m_bool prim_array_inner(const Env env, Type type, const Exp e) {
   const Type common = find_common_anc(e->type, type);
   if(common)
     return GW_OK;
-  if(check_implicit(env, "@implicit", e, type) < 0)
+  if(check_implicit(env, e, type) < 0)
     ERR_B(e->pos, _("array init [...] contains incompatible types ..."))
   set_cast(env, type, e); // ???
   return GW_OK;
@@ -281,7 +297,7 @@ ANN static m_bool vec_value(const Env env, Exp e) {
   int count = 1;
   CHECK_OB(check_exp(env, e))
   do {
-    if(check_implicit(env, "@implicit", e, env->gwion->type[et_float]) < 0)
+    if(check_implicit(env, e, env->gwion->type[et_float]) < 0)
       ERR_B(e->pos, _("invalid type '%s' in value #%d...\n"), e->type->name, count)
     ++count;
   } while((e = e->next));
@@ -456,7 +472,7 @@ ANN static m_bool func_match_inner(const Env env, const Exp e, const Type t,
         return check_lambda(env, owner, &e->d.exp_lambda, t->e->d.func->def);
       }
       if(implicit)
-        return check_implicit(env, "@implicit", e, t);
+        return check_implicit(env, e, t);
   }
   return match ? 1 : -1;
 }
@@ -1039,7 +1055,7 @@ ANN static m_bool do_stmt_auto(const Env env, const Stmt_Auto stmt) {
 }
 
 ANN static inline m_bool cond_type(const Env env, const Exp e) {
-  return check_implicit(env, "@repeat", e, env->gwion->type[et_int]);
+  return _check_implicit(env, "@repeat", e, env->gwion->type[et_int]);
 }
 
 #define stmt_func_xxx(name, type, prolog, exp) describe_stmt_func(check, name, type, prolog, exp)
@@ -1074,7 +1090,7 @@ ANN static m_bool check_stmt_return(const Env env, const Stmt_Exp stmt) {
   }
   if(isa(ret_type, env->func->def->base->ret_type) > 0)
     return GW_OK;
-  return check_implicit(env, "@implicit", stmt->val, env->func->def->base->ret_type);
+  return check_implicit(env, stmt->val, env->func->def->base->ret_type);
 }
 
 #define describe_check_stmt_stack(stack, name)                                     \
-- 
2.43.0