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ServiceUntypedParseTests.fs
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/
ServiceUntypedParseTests.fs
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#if INTERACTIVE
#r "../../artifacts/bin/fcs/net461/FSharp.Compiler.Service.dll" // note, build FSharp.Compiler.Service.Tests.fsproj to generate this, this DLL has a public API so can be used from F# Interactive
#r "../../artifacts/bin/fcs/net461/nunit.framework.dll"
#load "FsUnit.fs"
#load "Common.fs"
#else
module Tests.Service.ServiceUntypedParseTests
#endif
open System.IO
open FsUnit
open FSharp.Compiler.Range
open FSharp.Compiler.SourceCodeServices
open FSharp.Compiler.Service.Tests.Common
open FSharp.Compiler.SyntaxTree
open NUnit.Framework
let [<Literal>] private Marker = "(* marker *)"
let private (=>) (source: string) (expected: CompletionContext option) =
let lines =
use reader = new StringReader(source)
[| let line = ref (reader.ReadLine())
while not (isNull !line) do
yield !line
line := reader.ReadLine()
if source.EndsWith "\n" then
yield "" |]
let markerPos =
lines
|> Array.mapi (fun i x -> i, x)
|> Array.tryPick (fun (lineIdx, line) ->
match line.IndexOf Marker with
| -1 -> None
| idx -> Some (mkPos (Line.fromZ lineIdx) idx))
match markerPos with
| None -> failwithf "Marker '%s' was not found in the source code" Marker
| Some markerPos ->
match parseSourceCode("C:\\test.fs", source) with
| None -> failwith "No parse tree"
| Some parseTree ->
let actual = UntypedParseImpl.TryGetCompletionContext(markerPos, parseTree, lines.[Line.toZ markerPos.Line])
try Assert.AreEqual(expected, actual)
with e ->
printfn "ParseTree: %A" parseTree
reraise()
module AttributeCompletion =
[<Test>]
let ``at [<|, applied to nothing``() =
"""
[<(* marker *)
"""
=> Some CompletionContext.AttributeApplication
[<TestCase ("[<(* marker *)", true)>]
[<TestCase ("[<AnAttr(* marker *)", true)>]
[<TestCase ("[<type:(* marker *)", true)>]
[<TestCase ("[<type:AnAttr(* marker *)", true)>]
[<TestCase ("[< (* marker *)", true)>]
[<TestCase ("[<AnAttribute;(* marker *)", true)>]
[<TestCase ("[<AnAttribute; (* marker *)", true)>]
[<TestCase ("[<AnAttribute>][<(* marker *)", true)>]
[<TestCase ("[<AnAttribute>][< (* marker *)", true)>]
[<TestCase ("[<AnAttribute((* marker *)", false)>]
[<TestCase ("[<AnAttribute( (* marker *)", false)>]
[<TestCase ("[<AnAttribute (* marker *)", false)>]
[<TestCase ("[<AnAttribute>][<AnAttribute((* marker *)", false)>]
[<TestCase ("[<AnAttribute; AnAttribute((* marker *)", false)>]
let ``incomplete``(lineStr: string, expectAttributeApplicationContext: bool) =
(sprintf """
%s
type T =
{ F: int }
""" lineStr) => (if expectAttributeApplicationContext then Some CompletionContext.AttributeApplication else None)
[<TestCase ("[<(* marker *)>]", true)>]
[<TestCase ("[<AnAttr(* marker *)>]", true)>]
[<TestCase ("[<type:(* marker *)>]", true)>]
[<TestCase ("[<type:AnAttr(* marker *)>]", true)>]
[<TestCase ("[< (* marker *)>]", true)>]
[<TestCase ("[<AnAttribute>][<(* marker *)>]", true)>]
[<TestCase ("[<AnAttribute>][< (* marker *)>]", true)>]
[<TestCase ("[<AnAttribute;(* marker *)>]", true)>]
[<TestCase ("[<AnAttribute; (* marker *) >]", true)>]
[<TestCase ("[<AnAttribute>][<AnAttribute;(* marker *)>]", true)>]
[<TestCase ("[<AnAttribute((* marker *)>]", false)>]
[<TestCase ("[<AnAttribute (* marker *) >]", false)>]
[<TestCase ("[<AnAttribute>][<AnAttribute((* marker *)>]", false)>]
[<TestCase ("[<AnAttribute; AnAttribute((* marker *)>]", false)>]
[<TestCase ("[<AnAttribute; AnAttribute( (* marker *)>]", false)>]
[<TestCase ("[<AnAttribute>][<AnAttribute; AnAttribute((* marker *)>]", false)>]
let ``complete``(lineStr: string, expectAttributeApplicationContext: bool) =
(sprintf """
%s
type T =
{ F: int }
""" lineStr) => (if expectAttributeApplicationContext then Some CompletionContext.AttributeApplication else None)
[<Test>]
let ``Attribute lists`` () =
let source = """
[<A>]
let foo1 = ()
[<A>]
[<B;C>]
let foo2 = ()
[<A>] [<B;C>]
let foo3 = ()
[<A
let foo4 = ()
[<A;
let foo5 = ()
[<
let foo6 = ()
[<>]
let foo7 = ()
[<A;>]
let foo8 = ()
"""
let (SynModuleOrNamespace (decls = decls)) = parseSourceCodeAndGetModule source
decls |> List.map (fun decl ->
match decl with
| SynModuleDecl.Let (_, [Binding (attributes = attributeLists)], _) ->
attributeLists |> List.map (fun list -> list.Attributes.Length, getRangeCoords list.Range)
| _ -> failwith "Could not get binding")
|> shouldEqual
[ [ (1, ((2, 0), (2, 5))) ]
[ (1, ((5, 0), (5, 5))); (2, ((6, 0), (6, 7))) ]
[ (1, ((9, 0), (9, 5))); (2, ((9, 6), (9, 13))) ]
[ (1, ((12, 0), (13, 0))) ]
[ (1, ((15, 0), (15, 4))) ]
[ (0, ((18, 0), (18, 2))) ]
[ (0, ((21, 0), (21, 4))) ]
[ (1, ((24, 0), (24, 6))) ] ]
let rec getParenTypes (synType: SynType): SynType list =
[ match synType with
| SynType.Paren (innerType, _) ->
yield synType
yield! getParenTypes innerType
| SynType.Fun (argType, returnType, _) ->
yield! getParenTypes argType
yield! getParenTypes returnType
| SynType.Tuple (_, types, _) ->
for _, synType in types do
yield! getParenTypes synType
| SynType.AnonRecd (_, fields, _) ->
for _, synType in fields do
yield! getParenTypes synType
| SynType.App (typeName = typeName; typeArgs = typeArgs)
| SynType.LongIdentApp (typeName = typeName; typeArgs = typeArgs) ->
yield! getParenTypes typeName
for synType in typeArgs do
yield! getParenTypes synType
| _ -> () ]
[<Test>]
let ``SynType.Paren ranges`` () =
let source = """
((): int * (int * int))
((): (int -> int) -> int)
((): ((int)))
"""
let (SynModuleOrNamespace (decls = decls)) = parseSourceCodeAndGetModule source
decls |> List.map (fun decl ->
match decl with
| SynModuleDecl.DoExpr (expr = SynExpr.Paren (expr = SynExpr.Typed (_, synType ,_))) ->
getParenTypes synType
|> List.map (fun synType -> getRangeCoords synType.Range)
| _ -> failwith "Could not get binding")
|> shouldEqual
[ [ (2, 11), (2, 22) ]
[ (3, 5), (3, 17) ]
[ (4, 5), (4, 12); (4, 6), (4, 11) ] ]
module TypeMemberRanges =
let getTypeMemberRange source =
let (SynModuleOrNamespace (decls = decls)) = parseSourceCodeAndGetModule source
match decls with
| [ SynModuleDecl.Types ([ TypeDefn (_, SynTypeDefnRepr.ObjectModel (_, memberDecls, _), _, _) ], _) ] ->
memberDecls |> List.map (fun memberDecl -> getRangeCoords memberDecl.Range)
| _ -> failwith "Could not get member"
[<Test>]
let ``Member range 01 - Simple``() =
let source = """
type T =
member x.Foo() = ()
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 23) ]
[<Test>]
let ``Member range 02 - Static``() =
let source = """
type T =
static member Foo() = ()
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 28) ]
[<Test>]
let ``Member range 03 - Attribute``() =
let source = """
type T =
[<Foo>]
static member Foo() = ()
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (4, 28) ]
[<Test>]
let ``Member range 04 - Property``() =
let source = """
type T =
member x.P = ()
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 19) ]
[<Test>]
let ``Member range 05 - Setter only property``() =
let source = """
type T =
member x.P with set (value) = v <- value
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 44) ]
[<Test>]
let ``Member range 06 - Read-write property``() =
let source = """
type T =
member this.MyReadWriteProperty
with get () = x
and set (value) = x <- value
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (5, 36)
(3, 4), (5, 36) ]
[<Test>]
let ``Member range 07 - Auto property``() =
let source = """
type T =
member val Property1 = ""
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 29) ]
[<Test>]
let ``Member range 08 - Auto property with setter``() =
let source = """
type T =
member val Property1 = "" with get, set
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 29) ]
[<Test>]
let ``Member range 09 - Abstract slot``() =
let source = """
type T =
abstract P: int
abstract M: unit -> unit
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 19)
(4, 4), (4, 28) ]
[<Test>]
let ``Member range 10 - Val field``() =
let source = """
type T =
val x: int
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 14) ]
[<Test>]
let ``Member range 11 - Ctor``() =
let source = """
type T =
new (x:int) = ()
"""
getTypeMemberRange source |> shouldEqual [ (3, 4), (3, 20) ]
[<Test>]
let ``TryRangeOfRefCellDereferenceContainingPos - simple``() =
let source = """
let x = false
let y = !x
"""
let parseFileResults, _ = getParseAndCheckResults source
let res = parseFileResults.TryRangeOfRefCellDereferenceContainingPos (mkPos 3 9)
match res with
| Some res ->
res
|> tups
|> fst
|> shouldEqual (3, 8)
| None ->
Assert.Fail("No deref operator found in source.")
[<Test>]
let ``TryRangeOfRefCellDereferenceContainingPos - parens``() =
let source = """
let x = false
let y = !(x)
"""
let parseFileResults, _ = getParseAndCheckResults source
let res = parseFileResults.TryRangeOfRefCellDereferenceContainingPos (mkPos 3 10)
match res with
| Some res ->
res
|> tups
|> fst
|> shouldEqual (3, 8)
| None ->
Assert.Fail("No deref operator found in source.")
[<Test>]
let ``TryRangeOfRefCellDereferenceContainingPos - binary expr``() =
let source = """
let x = false
let y = !(x = false)
"""
let parseFileResults, _ = getParseAndCheckResults source
let res = parseFileResults.TryRangeOfRefCellDereferenceContainingPos (mkPos 3 10)
match res with
| Some res ->
res
|> tups
|> fst
|> shouldEqual (3, 8)
| None ->
Assert.Fail("No deref operator found in source.")