Add tests for includeclass errors
Oxana
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9802dd9f8f
commit
3e728c3899
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@ -0,0 +1,253 @@
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(* TEST
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* expect
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*)
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class type foo_t =
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object
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method foo: string
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end
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module M: sig
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class type ct = object val m: string end
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end = struct
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class type ct = object end
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end
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[%%expect{|
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class type foo_t = object method foo : string end
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Lines 8-10, characters 6-3:
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8 | ......struct
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9 | class type ct = object end
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10 | end
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Error: Signature mismatch:
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Modules do not match:
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sig class type ct = object end end
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is not included in
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sig class type ct = object val m : string end end
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Class type declarations do not match:
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class type ct = object end
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does not match
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class type ct = object val m : string end
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The first class type has no instance variable m
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|}]
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module M: sig
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class c : object
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method a: string
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end
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end = struct
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class virtual c = object
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method virtual a: string
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end
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end
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;;
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[%%expect{|
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Lines 5-9, characters 6-3:
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5 | ......struct
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6 | class virtual c = object
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7 | method virtual a: string
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8 | end
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9 | end
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Error: Signature mismatch:
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Modules do not match:
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sig class virtual c : object method virtual a : string end end
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is not included in
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sig class c : object method a : string end end
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Class declarations do not match:
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class virtual c : object method virtual a : string end
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does not match
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class c : object method a : string end
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A class cannot be changed from virtual to concrete
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|}]
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class type ['a] ct = object val x: 'a end
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module M: sig
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class type ['a] c = object end
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end = struct
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class type c = object end
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end
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;;
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[%%expect{|
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class type ['a] ct = object val x : 'a end
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Lines 5-7, characters 6-3:
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5 | ......struct
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6 | class type c = object end
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7 | end
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Error: Signature mismatch:
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Modules do not match:
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sig class type c = object end end
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is not included in
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sig class type ['a] c = object end end
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Class type declarations do not match:
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class type c = object end
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does not match
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class type ['a] c = object end
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The classes do not have the same number of type parameters
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|}]
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module M: sig
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class ['a] c: object constraint 'a = int end
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end = struct
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class ['a] c = object end
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end
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;;
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[%%expect{|
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Lines 3-5, characters 6-3:
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3 | ......struct
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4 | class ['a] c = object end
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5 | end
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Error: Signature mismatch:
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Modules do not match:
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sig class ['a] c : object end end
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is not included in
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sig class ['a] c : object constraint 'a = int end end
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Class declarations do not match:
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class ['a] c : object end
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does not match
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class ['a] c : object constraint 'a = int end
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A type parameter has type 'a but is expected to have type int
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|}]
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module M: sig
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class c : int -> object end
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end = struct
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class c (x : float) = object end
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end
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;;
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[%%expect{|
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Lines 3-5, characters 6-3:
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3 | ......struct
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4 | class c (x : float) = object end
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5 | end
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Error: Signature mismatch:
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Modules do not match:
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sig class c : float -> object end end
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is not included in
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sig class c : int -> object end end
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Class declarations do not match:
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class c : float -> object end
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does not match
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class c : int -> object end
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A parameter has type float but is expected to have type int
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|}]
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class virtual foo: foo_t =
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object
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method foo = "foo"
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method private virtual cast: int
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end
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;;
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[%%expect{|
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Lines 2-5, characters 4-7:
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2 | ....object
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3 | method foo = "foo"
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4 | method private virtual cast: int
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5 | end
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Error: The class type object method foo : string end
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is not matched by the class type foo_t
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The virtual method cast cannot be hidden
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|}]
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class type foo_t2 =
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object
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method private foo: string
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end
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class foo: foo_t2 =
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object
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method foo = "foo"
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end
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;;
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[%%expect{|
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class type foo_t2 = object method private foo : string end
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Lines 7-9, characters 4-7:
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7 | ....object
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8 | method foo = "foo"
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9 | end
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Error: The class type object method foo : string end
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is not matched by the class type foo_t2
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The public method foo cannot become private
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|}]
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class virtual foo: foo_t =
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object
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method virtual foo: string
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end
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;;
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[%%expect{|
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Lines 2-4, characters 4-7:
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2 | ....object
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3 | method virtual foo: string
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4 | end
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Error: The class type object method virtual foo : string end
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is not matched by the class type foo_t
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The virtual method foo cannot become concrete
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|}]
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class type foo_t3 =
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object
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val mutable x : int
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end
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class foo: foo_t3 =
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object
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val x = 1
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end
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;;
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[%%expect{|
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class type foo_t3 = object val mutable x : int end
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Lines 7-9, characters 4-7:
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7 | ....object
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8 | val x = 1
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9 | end
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Error: The class type object val x : int end is not matched by the class type
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foo_t3
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The non-mutable instance variable x cannot become mutable
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|}]
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class type foo_t4 =
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object
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val x : int
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end
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class virtual foo: foo_t4 =
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object
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val virtual x : int
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end
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;;
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[%%expect{|
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class type foo_t4 = object val x : int end
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Lines 7-9, characters 4-7:
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7 | ....object
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8 | val virtual x : int
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9 | end
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Error: The class type object val virtual x : int end
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is not matched by the class type foo_t4
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The virtual instance variable x cannot become concrete
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|}]
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module M: sig
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class type c = object method m: string end
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end = struct
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class type c = object method private m: string end
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end
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;;
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[%%expect{|
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Lines 3-5, characters 6-3:
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3 | ......struct
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4 | class type c = object method private m: string end
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5 | end
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Error: Signature mismatch:
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Modules do not match:
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sig class type c = object method private m : string end end
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is not included in
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sig class type c = object method m : string end end
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Class type declarations do not match:
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class type c = object method private m : string end
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does not match
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class type c = object method m : string end
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The private method m cannot become public
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|}]
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@ -32,3 +32,4 @@ typecore_nolabel_errors.ml
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typecore_empty_polyvariant_error.ml
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typetexp_errors.ml
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external_arity.ml
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includeclass_errors.ml
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