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WIP type-checking -- check array subscript access
[tiger.ml.git]
/
compiler
/
src
/
lib
/
tiger
/
tiger_error.ml
diff --git
a/compiler/src/lib/tiger/tiger_error.ml
b/compiler/src/lib/tiger/tiger_error.ml
index
782f138
..
e8af9eb
100644
(file)
--- a/
compiler/src/lib/tiger/tiger_error.ml
+++ b/
compiler/src/lib/tiger/tiger_error.ml
@@
-11,6
+11,7
@@
type t =
| Id_not_a_function of {id : Sym.t; pos : Pos.t}
| No_such_field_in_record of {field : Sym.t; record : Typ.t; pos : Pos.t}
| Exp_not_a_record of {ty : Typ.t; pos : Pos.t}
| Id_not_a_function of {id : Sym.t; pos : Pos.t}
| No_such_field_in_record of {field : Sym.t; record : Typ.t; pos : Pos.t}
| Exp_not_a_record of {ty : Typ.t; pos : Pos.t}
+ | Exp_not_an_array of {ty : Typ.t; pos : Pos.t}
| Wrong_type of
{ expected : Typ.t
; given : Typ.t
| Wrong_type of
{ expected : Typ.t
; given : Typ.t
@@
-82,7
+83,11
@@
let to_string =
s "No field %S in record %S in %s"
(Sym.to_string field) (Typ.to_string record) (Pos.to_string pos)
| Exp_not_a_record {ty; pos} ->
s "No field %S in record %S in %s"
(Sym.to_string field) (Typ.to_string record) (Pos.to_string pos)
| Exp_not_a_record {ty; pos} ->
- s ( "This expression has type %S, it is not a record, it cannot be"
+ s ( "The expression of type %S is not a record, it cannot be"
+ ^^"accessed in %s")
+ (Typ.to_string ty) (Pos.to_string pos)
+ | Exp_not_an_array {ty; pos} ->
+ s ( "The expression of type %S is not an array, it cannot be"
^^"accessed in %s")
(Typ.to_string ty) (Pos.to_string pos)
| Wrong_type {expected; given; pos} ->
^^"accessed in %s")
(Typ.to_string ty) (Pos.to_string pos)
| Wrong_type {expected; given; pos} ->
@@
-144,6
+149,7
@@
let is_unknown_id t =
| Id_not_a_function _
| No_such_field_in_record _
| Exp_not_a_record _
| Id_not_a_function _
| No_such_field_in_record _
| Exp_not_a_record _
+ | Exp_not_an_array _
| Wrong_type _
| Wrong_type_of_expression_in_var_dec _
| Wrong_type_used_as_record _
| Wrong_type _
| Wrong_type_of_expression_in_var_dec _
| Wrong_type_used_as_record _
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