Define (some) semantic errors

[tiger.ml.git] / compiler / src / lib / tiger / tiger_error.mli

diff --git a/compiler/src/lib/tiger/tiger_error.mli b/compiler/src/lib/tiger/tiger_error.mli
index 1f0d0ce..4009ed5 100644 (file)
--- a/compiler/src/lib/tiger/tiger_error.mli
+++ b/compiler/src/lib/tiger/tiger_error.mli
@@ -1,3 +1,52 @@
-exception T of string
+type t =
+  | Invalid_syntax    of Tiger_position.t
+  | Unknown_id        of {id    : Tiger_symbol.t; pos : Tiger_position.t}
+  | Unknown_type      of {ty_id : Tiger_symbol.t; pos : Tiger_position.t}
+  | Id_not_a_function of {id    : Tiger_symbol.t; pos : Tiger_position.t}
+  | Wrong_type_of_expression_in_var_dec of
+      { var_id   : Tiger_symbol.t
+      ; expected : Tiger_env_type.t
+      ; given    : Tiger_env_type.t
+      ; pos      : Tiger_position.t
+      }
+  | Wrong_type_used_as_record of
+      { ty_id    : Tiger_symbol.t
+      ; ty       : Tiger_env_type.t
+      ; pos      : Tiger_position.t
+      }
+  | Wrong_type_of_field_value of
+      { field_id : Tiger_symbol.t
+      ; expected : Tiger_env_type.t
+      ; given    : Tiger_env_type.t
+      ; pos      : Tiger_position.t
+      }
+  | Wrong_type_of_arg of
+      { func     : Tiger_symbol.t
+      ; expected : Tiger_env_type.t
+      ; given    : Tiger_env_type.t
+      ; pos      : Tiger_position.t
+      }
+  | Wrong_number_of_args of
+      { func     : Tiger_symbol.t
+      ; expected : int
+      ; given    : int
+      ; pos      : Tiger_position.t
+      }
+  | Invalid_operand_type of
+      { oper  : Tiger_absyn.oper
+      ; valid : string list
+      ; given : Tiger_env_type.t
+      ; pos   : Tiger_position.t
+      }
+  | Different_operand_types of
+      { oper  : Tiger_absyn.oper
+      ; left  : Tiger_env_type.t
+      ; right : Tiger_env_type.t
+      ; pos   : Tiger_position.t
+      }
 
-val exn : pos:Tiger_position.t -> string -> 'a
+exception T of t
+
+val raise : t -> 'a
+
+val to_string : t -> string