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|
structure ScopeRule =
struct
open SMLUnit.Test SMLUnit.Assert
structure S1 = struct
val A = 1
type A = int
structure S2 = struct
val A = 2
end
end
structure S1 = struct
val A = 3
type A = string
structure S2 = struct
val A = 4
datatype d1 = B
exception E1
datatype A1 = A1 of A
end
val d1B = S2.B
val E2 = S2.E1
val A = 5
type A = bool
structure S3 = S1
end
structure S1 = S1
type A = word
fun testVID () =
let
val A = "A"
datatype A = B
val _ = assertEqualString "A" A
datatype A = A
| C
val _ = assertTrue (A <> C)
in
()
end
fun testVIDFun () =
let
val A = 1
fun f1 (0, _) = A
| f1 (A, 0) = A + 1
| f1 (_, B) = A + B + 2
val _ = assertEqualInt 1 (f1 (0, 2))
val _ = assertEqualInt 3 (f1 (2, 0))
val _ = assertEqualInt 6 (f1 (2, 3))
in
()
end
fun testVIDFunSameName () =
let
fun A A = A
val _ = assertEqualInt 2 (A 2)
in
()
end
fun testVIDFunRec () =
let
fun A x = if true then 1 else A x
val _ = assertEqualInt 1 (A 2)
in
()
end
fun testVIDFunLet () =
let
fun A x =
let
fun A x = if true then x else A x
in
A
end
val _ = assertEqualInt 2 (A 1 2)
in
()
end
fun testVIDFn1 () =
let
val A = 1
val f1 = fn (0, _) => A
| (A, 0) => A + 1
| (_, B) => A + B + 2
val _ = assertEqualInt 1 (f1 (0, 2))
val _ = assertEqualInt 3 (f1 (2, 0))
val _ = assertEqualInt 6 (f1 (2, 3))
in
()
end
fun testVIDFn2 () =
let
val A = 1
val _ = assertEqualInt 3 ((fn A => (fn A => A)) 2 3)
in
()
end
fun testVIDFnDatatype () =
let
datatype d1 = A
val _ = assertTrue (A = ((fn A => A) A))
in
()
end
fun testVIDCase () =
let
val A = 1
val v1 = case (0, 2) of
(0, _) => A
| (A, 0) => A + 1
| (_, B) => A + B + 2
val v2 = case (2, 0) of
(0, _) => A
| (A, 0) => A + 1
| (_, B) => A + B + 2
val v3 = case (2, 3) of
(0, _) => A
| (A, 0) => A + 1
| (_, B) => A + B + 2
val _ = assertEqualInt 1 v1
val _ = assertEqualInt 3 v2
val _ = assertEqualInt 6 v3
in
()
end
fun testVIDCaseDatatype () =
let
datatype d1 = A
val v1 = case A of
A => A
val _ = assertTrue (v1 = A)
in
()
end
fun testVIDStruct () =
let
val A = 1
val _ = assertEqualInt 1 S1.S3.A
val _ = assertEqualInt 2 S1.S3.S2.A
val _ = assertEqualInt 4 S1.S2.A
val _ = assertEqualInt 5 S1.A
val _ = assertTrue (S1.S2.B = S1.d1B)
val _ = case S1.E2 of
S1.S2.E1 => ()
| _ => fail "NG"
in
()
end
fun testVIDLocal () =
let
val A = 1
val B = 2
val C = 3
local
val _ = assertEqualInt 1 A
val A = 4
val _ = assertEqualInt 4 A
datatype d1 = C
in
val _ = assertEqualInt 4 A
val _ = assertEqualInt 2 B
val B = 5
val _ = assertEqualInt 5 B
end
val _ = assertEqualInt 1 A
val _ = assertEqualInt 5 B
val _ = assertEqualInt 3 C
in
()
end
fun testVIDLet () =
let
val A = 1
val B = 2
val C = 3
val _ =
let
val _ = assertEqualInt 1 A
val A = 4
val _ = assertEqualInt 4 A
datatype d1 = C
in
assertEqualInt 4 A;
assertEqualInt 2 B
end
val _ = assertEqualInt 1 A
val _ = assertEqualInt 3 C
in
()
end
fun testVIDExn () =
let
datatype A = A
exception A of int
val B = 1
val v1 = (raise A 2; B) handle A B => B
val _ = assertEqualInt 2 v1
val v2 = (raise A 2) handle A B => (raise A 3) handle A B => B
val _ = assertEqualInt 3 v2
in
()
end
fun testTycon () =
let
type A = int
type A = A
datatype B = A of A
type A = string
val _ = A 1
datatype A = A1 of A
| A2
val _ = A1 (A1 A2)
in
()
end
fun testTyconStruct () =
let
val _ = S1.S2.A1 "A"
in
()
end
fun testTyconLocal () =
let
type A = int
local
datatype A1 = A1 of A
type A = string
in
val A2 = A1
type A = A
datatype A3 = A3 of A
end
datatype A4 = A4 of A
val _ = A2 1
val _ = A3 "A"
val _ = A4 "A"
in
()
end
fun testTyconLet () =
let
type A = int
val _ =
let
datatype A1 = A1 of A
type A = string
val A2 = A1
type A = A
datatype A3 = A3 of A
in
A2 1;
A3 "A"
end
datatype A4 = A4 of A
val _ = A4 1
in
()
end
fun testTyvar () =
let
datatype ('a, 'b) A = A1 of 'a * 'b
type ('b, 'a) A = ('a, 'b) A
datatype ('a, 'b) B = A2 of ('a, 'b) A
val v1 : (string, int) B = A2 (A1 (1, "A"))
in
()
end
val tests = TestList [
Test ("testVID", testVID),
Test ("testVIDFun", testVIDFun),
Test ("testVIDFunSameName", testVIDFunSameName),
Test ("testVIDFunRec", testVIDFunRec),
Test ("testVIDFunLet", testVIDFunLet),
Test ("testVIDFn1", testVIDFn1),
Test ("testVIDFn2", testVIDFn2),
Test ("testVIDFnDatatype", testVIDFnDatatype),
Test ("testVIDCase", testVIDCase),
Test ("testVIDCaseDatatype", testVIDCaseDatatype),
Test ("testVIDStruct", testVIDStruct),
Test ("testVIDLocal", testVIDLocal),
Test ("testVIDLet", testVIDLet),
Test ("testVIDExn", testVIDExn),
Test ("testTycon", testTycon),
Test ("testTyconStruct", testTyconStruct),
Test ("testTyconLocal", testTyconLocal),
Test ("testTyconLet", testTyconLet),
Test ("testTyvar", testTyvar)
]
end
|
