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RegionAnalysisTests.vb
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' Licensed to the .NET Foundation under one or more agreements.
' The .NET Foundation licenses this file to you under the MIT license.
' See the LICENSE file in the project root for more information.
Imports Microsoft.CodeAnalysis.Test.Utilities
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
Imports Roslyn.Test.Utilities
Namespace Microsoft.CodeAnalysis.VisualBasic.UnitTests
Partial Public Class FlowAnalysisTests
Inherits FlowTestBase
<Fact()>
Public Sub NullArgsToFlowAnalysisMethods()
Dim compilation = CreateCompilationWithMscorlib40(
<compilation name="TestEntryPoints01">
<file name="a.b">
class C
public sub F()
end sub
end class
</file>
</compilation>)
Dim semanticModel = compilation.GetSemanticModel(compilation.SyntaxTrees(0))
Dim statement = compilation.SyntaxTrees(0).GetCompilationUnitRoot().DescendantNodesAndSelf().OfType(Of StatementSyntax)().First()
Assert.Throws(Of ArgumentNullException)(Sub() semanticModel.AnalyzeControlFlow(statement, Nothing))
Assert.Throws(Of ArgumentNullException)(Sub() semanticModel.AnalyzeControlFlow(Nothing, statement))
Assert.Throws(Of ArgumentNullException)(Sub() semanticModel.AnalyzeDataFlow(statement, Nothing))
Assert.Throws(Of ArgumentNullException)(Sub() semanticModel.AnalyzeDataFlow(Nothing, statement))
Assert.Throws(Of ArgumentNullException)(Sub() semanticModel.AnalyzeDataFlow(CType(Nothing, ExecutableStatementSyntax)))
End Sub
<Fact()>
Public Sub TestEntryPoints01()
Dim analysis = CompileAndAnalyzeControlFlow(
<compilation name="TestEntryPoints01">
<file name="a.b">
class C
public sub F()
goto L1 ' 1
[|
L1:
|]
goto L1 ' 2
end sub
end class
</file>
</compilation>)
Assert.Equal(1, analysis.EntryPoints.Count())
End Sub
<Fact()>
Public Sub ByRefExtensionMethod()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Option Strict Off
Imports System
Imports System.Threading
Imports System.Threading.Tasks
Imports System.Runtime.CompilerServices
Module Module1
Public Sub Main(args As String())
Dim s As String = "b"
[|s.EM()|]
Console.Write(s)
End Sub
<Extension()>
Public Sub EM(ByRef c As String)
c = "a"
End Sub
End Module
Public Class Clazz
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.AlwaysAssigned))
Assert.Equal("s", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal("s", GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal("args, s", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal("args, s", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
Assert.Equal("s", GetSymbolNamesJoined(analysis.ReadInside))
Assert.Equal("s", GetSymbolNamesJoined(analysis.WrittenInside))
End Sub
<WorkItem(768095, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/768095")>
<Fact()>
Public Sub Bug768095()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Public Class RichTextBox2
Private Sub UndoRestorableItem(ByVal restorableItem As RestorableItem)
With [|restorableItem|]
End With
End Sub
Private Structure RestorableItem
Public Property EditType As String
Public Property Position As Integer
Public Property Text As String
End Structure
End Class
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(531223, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/531223")>
<Fact()>
Public Sub Bug17780a()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Class Test
Public Shared Sub Main()
On Error GoTo [| 0 |]
End Sub
End Class
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(531223, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/531223")>
<Fact()>
Public Sub Bug17780b()
' TODO: Rewrite the test when Yield is supported
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Imports System
Imports System.Collections.Generic
Friend Class SourceFileScope
Public Iterator Function GetTypesToSearchIn() As IEnumerable(Of Object)
Yield [| Nothing |]
End Function
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(543362, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/543362")>
<Fact()>
Public Sub Bug11067()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug11067">
<file name="a.b">
Class Test
Public Shared Sub Main()
Dim y(,) = New Integer(,) {{[|From|]}}
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(529967, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/529967")>
<Fact()>
Public Sub Bug14894a()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Imports System
Module Program
Sub Main(args As String())
Dim o3 As Object = "hi"
[| Dim col1 = {o3, o3} |]
End Sub
End Module
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal("o3", GetSymbolNamesJoined(analysis.ReadInside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.ReadOutside))
Assert.Equal("args, o3", GetSymbolNamesJoined(analysis.WrittenOutside))
Assert.Equal("col1", GetSymbolNamesJoined(analysis.WrittenInside))
Assert.Equal("o3", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal("args, o3", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal("args, o3, col1", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
End Sub
<WorkItem(529967, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/529967")>
<Fact()>
Public Sub Bug14894b()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Imports System
Module Program
Sub Main(args As String())
Dim o3 As Object = "hi"
Dim col1 = [| {o3, o3} |]
End Sub
End Module
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal("o3", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal("args, o3", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal("args, o3", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
End Sub
<WorkItem(544602, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/544602")>
<Fact()>
Public Sub Bug13053a()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug13053a">
<file name="a.b">
Class Test
Public Shared Sub Main()
Dim i As Integer = 1
Dim o = New MyObject With { .A = [| i |] }
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(545069, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/545069")>
<Fact()>
Public Sub ParameterNameAsAnInvalidRegion()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="ParameterNameAsAnInvalidRegion">
<file name="a.b">
Module Module1
Sub S(par As Integer)
S([| par |]:=12)
End Sub
End Module
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(545443, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/545443")>
<Fact()>
Public Sub XmlNameInsideEndTag()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="XmlNameInsideEndTag">
<file name="a.b">
Module Module1
Sub S(par As Integer)
Dim a = <tag> </ [| tag |] >
End Sub
End Module
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(545077, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/545077")>
<Fact()>
Public Sub ExpressionsInAttributeValues()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="ExpressionsInAttributeValues">
<file name="a.b">
Imports System
Imports System.Reflection
<Assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute([| "Microsoft.CodeAnalysis.Workspaces, PublicKey=002400000480000094000000060200000024000052534131000400"& _
"000100010055e0217eb635f69281051f9a823e0c7edd90f28063eb6c7a742a19b4f6139778ee0af4"& _
"38f47aed3b6e9f99838aa8dba689c7a71ddb860c96d923830b57bbd5cd6119406ddb9b002cf1c723"& _
"bf272d6acbb7129e9d6dd5a5309c94e0ff4b2c884d45a55f475cd7dba59198086f61f5a8c8b5e601"& _
"c0edbf269733f6f578fc8579c2" |])>
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(545077, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/545077")>
<Fact()>
Public Sub ExpressionsInAttributeValues2()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="ExpressionsInAttributeValues2">
<file name="a.b">
Imports System
Imports System.Reflection
Public Class MyAttribute
Public Sub New(p As Object)
End Sub
End Class
<MyAttribute(p:=Sub()
[|Dim a As Integer = 1
While a < 110
a += 1
End While|]
End Sub)>
Module Program
Sub Main(args As String())
End Sub
End Module
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<Fact()>
Public Sub OptionalParameterDefaultValue()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="OptionalParameterDefaultValue">
<file name="a.b">
Class Test
Public Shared Sub S(Optional x As Integer = [| 1 |])
End Sub
End Class
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(545432, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/545432")>
<Fact()>
Public Sub LowerBoundOfArrayDefinitionSize()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="LowerBoundOfArrayDefinitionSize">
<file name="a.b">
Class Test
Public Shared Sub S(x As Integer)
Dim newTypeArguments([|0|] To x - 1) As String
End Sub
End Class
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(544602, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/544602")>
<Fact()>
Public Sub Bug13053b()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug13053b">
<file name="a.b">
Imports System
Class Test
Public Shared Sub Main()
Console.Write(GetXmlNamespace([| ns |]))
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(679765, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/679765")>
<Fact()>
Public Sub Bug679765a()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug13053b">
<file name="a.b">
Imports System
Class Test
Public Shared Sub Main()
Console.Write([| "A" |] + "B" + "C" + "D")
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(679765, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/679765")>
<Fact()>
Public Sub Bug679765b()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug13053b">
<file name="a.b">
Imports System
Class Test
Public Shared Sub Main()
Console.Write([| "A" + "B" + "C" + "D" |] )
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(679765, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/679765")>
<Fact()>
Public Sub Bug679765c()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug13053b">
<file name="a.b">
Imports System
Class Test
Public Shared Sub Main()
Console.Write([| "A" + "B" + "C" |] + "D" )
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(543570, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/543570")>
<Fact()>
Public Sub Bug11428()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug11428">
<file name="a.b">
Module Program
Sub Main(args As String())
End Sub
End Module
Class C
Public Sub Goo()
End Sub
End Class
Class M
Inherits C
Public r As Double
Public Overrides Sub Goo()
Return [|MyBase.Total|] * r
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(543581, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/543581")>
<Fact()>
Public Sub Bug11440a()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug11440">
<file name="a.b">
Imports System
Module Program
Sub Main(args As String())
Dim lambda = Function(ByRef arg As Integer)
Return Function(ByRef arg1 As Integer)
GoTo Label
Dim arg2 As Integer = 2
Label:
Return [| arg2 * arg1 |]
End Function
End Function
End Sub
End Module
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.AlwaysAssigned))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.Captured))
Assert.Equal("arg1, arg2", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal("args, lambda, arg, arg1", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal("args, lambda, arg, arg1", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
Assert.Equal("arg1, arg2", GetSymbolNamesJoined(analysis.ReadInside))
Assert.Equal("arg, arg1", GetSymbolNamesJoined(analysis.ReadOutside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.VariablesDeclared))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.WrittenInside))
Assert.Equal("args, lambda, arg, arg1, arg2", GetSymbolNamesJoined(analysis.WrittenOutside))
End Sub
<WorkItem(543581, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/543581")>
<Fact()>
Public Sub Bug11440b()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug11440">
<file name="a.b">
Imports System
Module Program
Sub Main(args As String())
GoTo Label
Dim arg2 As Integer = 2
Label:
dim y = [| arg2 |]
End Sub
End Module
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.AlwaysAssigned))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.Captured))
Assert.Equal("arg2", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal("args", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal("args", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
Assert.Equal("arg2", GetSymbolNamesJoined(analysis.ReadInside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.ReadOutside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.VariablesDeclared))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.WrittenInside))
Assert.Equal("args, arg2, y", GetSymbolNamesJoined(analysis.WrittenOutside))
End Sub
<WorkItem(544330, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/544330")>
<Fact()>
Public Sub Bug12609()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug12609">
<file name="a.b">
Class A
Sub Goo(Optional i As Integer = [|1|])
End Sub
End Class
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(542231, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/542231")>
<Fact()>
Public Sub TestUnreachableRegion()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Class A
Sub Goo()
Dim i As Integer
Return
[| i = i + 1 |]
Dim j As Integer = i
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
End Sub
<WorkItem(542231, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/542231")>
<Fact()>
Public Sub TestUnreachableRegion2()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Class A
Sub Goo()
Dim i As Integer = 0
Dim j As Integer = 0
Dim k As Integer = 0
Dim l As Integer = 0
GoTo l1
[|
Console.WriteLine(i)
j = 1
l1:
Console.WriteLine(j)
k = 1
GoTo l2
Console.WriteLine(k)
l = 1
l3:
Console.WriteLine(l)
i = 1
|]
l2:
Console.WriteLine(i + j + k + l)
GoTo l3
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
Assert.Equal("j, l", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal("i, k", GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal("Me, i, j, k, l", GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
End Sub
<WorkItem(542231, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/542231")>
<Fact()>
Public Sub TestUnreachableRegionInExpression()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation>
<file name="a.b">
Class A
Function Goo() As Boolean
Dim i As Boolean = True
Dim j As Boolean = False
dim ext as external = new external
Return False AndAlso [| ((i = ext.M1(i)) Or (i = ext.M1(j))) |]
End Function
End Class
</file>
</compilation>, s_customIL)
Assert.True(analysis.Succeeded)
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsOut))
End Sub
<WorkItem(545445, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/545445")>
<Fact()>
Public Sub ExpressionInside()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug12609">
<file name="a.b">
Class A
Sub Goo()
Dim outputAuthoringDocument = <?xml version=[|"1.0"|]?>
<wix:Wix>
<wix:Fragment>
<wix:DirectoryRef Id="VisualStudio11Extensions">
</wix:DirectoryRef>
</wix:Fragment>
</wix:Wix>
End Sub
End Class
</file>
</compilation>)
Assert.False(analysis.Succeeded)
End Sub
<WorkItem(544201, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/544201")>
<Fact()>
Public Sub Bug12423a()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug12423a">
<file name="a.b">
Class A
Sub Goo()
Dim x = { [| New B (abc) |] }
End Sub
End Class
Class B
Public Sub New(i As Integer)
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<WorkItem(544201, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/544201")>
<Fact()>
Public Sub Bug12423b()
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="Bug12423b">
<file name="a.b">
Class A
Sub Goo(i As Integer)
Dim x = New B([| i |] ) { New B (abc) }
End Sub
End Class
Class B
Public Sub New(i As Integer)
End Sub
End Class
</file>
</compilation>)
Assert.True(analysis.Succeeded)
End Sub
<Fact()>
Public Sub TestDataFlowForValueTypes()
' WARNING: test matches the same test in C# (TestDataFlowForValueTypes)
' Keep the two tests in sync!
Dim analysis = CompileAndAnalyzeDataFlow(
<compilation name="TestDataFlowForValueTypes">
<file name="a.b">
Imports System
Class Tst
Shared Sub Tst()
Dim a As S0
Dim b As S1
Dim c As S2
Dim d As S3
Dim e As E0
Dim f As E1
[|
Console.WriteLine(a)
Console.WriteLine(b)
Console.WriteLine(c)
Console.WriteLine(d)
Console.WriteLine(e)
Console.WriteLine(f)
|]
End Sub
End Class
Structure S0
End Structure
Structure S1
Public s0 As S0
End Structure
Structure S2
Public s0 As S0
Public s1 As Integer
End Structure
Structure S3
Public s0 As S0
Public s1 As Object
End Structure
Enum E0
End Enum
Enum E1
V1
End Enum
</file>
</compilation>)
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.AlwaysAssigned))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.Captured))
Assert.Equal("c, d, e, f", GetSymbolNamesJoined(analysis.DataFlowsIn))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DataFlowsOut))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DefinitelyAssignedOnEntry))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.DefinitelyAssignedOnExit))
Assert.Equal("a, b, c, d, e, f", GetSymbolNamesJoined(analysis.ReadInside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.ReadOutside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.VariablesDeclared))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.WrittenInside))
Assert.Equal(Nothing, GetSymbolNamesJoined(analysis.WrittenOutside))
End Sub
<WorkItem(768094, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/768094")>
<Fact()>
Public Sub Bug768094a()
Dim program =
<compilation>
<file name="a.b">
<![CDATA[
class C
public sub F1(dim x as integer)
end sub
' During the search for the best function definition, this procedure
** is called to test how well the function passed as the first argument
** matches the request for a function with nArg arguments in a system
** that uses encoding enc. The value returned indicates how well the
** request is matched. A higher value indicates a better match.
**
** The returned value is always between 0 and 6, as follows:
**
** 0: Not a match, or if nArg<0 and the function is has no implementation.
** 1: A variable arguments function that prefers UTF-8 when a UTF-16
** encoding is requested, or vice versa.
** 2: A variable arguments function that uses UTF-16BE when UTF-16LE is
** requested, or vice versa.
** 3: A variable arguments function using the same text encoding.
** 4: A function with the exact number of arguments requested that
** prefers UTF-8 when a UTF-16 encoding is requested, or vice versa.
** 5: [|A function|] with the exact number of arguments requested that
** prefers UTF-16LE when UTF-16BE is requested, or vice versa.
** 6: An exact match.
**
*/
public sub F(dim x as integer)
end sub
end class
]]>
</file>
</compilation>
Dim startNodes As New List(Of VisualBasicSyntaxNode)
Dim endNodes As New List(Of VisualBasicSyntaxNode)
Dim comp = CompileAndGetModelAndSpan(program, startNodes, endNodes, Nothing, Nothing)
Assert.Equal(3, startNodes.Count)
Assert.Equal(SyntaxKind.ExpressionStatement, startNodes(2).Kind)
Dim expr = DirectCast(startNodes(2), ExpressionStatementSyntax)
Dim model = comp.GetSemanticModel(comp.SyntaxTrees(0))
Dim analysis = model.AnalyzeControlFlow(expr) ' NO THROW
Assert.Equal(0, analysis.EntryPoints.Count())
End Sub
<WorkItem(768094, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/768094")>
<Fact()>
Public Sub Bug768094b()
Dim program =
<compilation>
<file name="a.b">
<![CDATA[
'CONVERTED BY ROSLYN
Imports System.Diagnostics
Imports System.Text
Imports i64 = System.Int64
Imports u8 = System.Byte
Imports u16 = System.UInt16
Namespace Community.CsharpSqlite
Partial Public Class Sqlite3
#If SQLITE_DEBUG Then
/*
** Write a nice string representation of the contents of cell pMem
** into buffer zBuf, length nBuf.
*/
static StringBuilder zCsr = new StringBuilder( 100 );
static void sqlite3VdbeMemPrettyPrint( Mem pMem, StringBuilder zBuf )
{
zBuf.Length = 0;
zCsr.Length = 0;
int f = pMem.flags;
string[] encnames = new string[] { "(X)", "(8)", "(16LE)", "(16BE)" };
if ( ( f & MEM_Blob ) != 0 )
{
int i;
char c;
if ( ( f & MEM_Dyn ) != 0 )
{
c = 'z';
Debug.Assert( ( f & ( MEM_Static | MEM_Ephem ) ) == 0 );
}
else if ( ( f & MEM_Static ) != 0 )
{
c = 't';
Debug.Assert( ( f & ( MEM_Dyn | MEM_Ephem ) ) == 0 );
}
else if ( ( f & MEM_Ephem ) != 0 )
{
c = 'e';
Debug.Assert( ( f & ( MEM_Static | MEM_Dyn ) ) == 0 );
}
else
{
c = 's';
}
sqlite3_snprintf( 100, zCsr, "%c", c );
zBuf.Append( zCsr );//zCsr += sqlite3Strlen30(zCsr);
sqlite3_snprintf( 100, zCsr, "%d[", pMem.n );
zBuf.Append( zCsr );//zCsr += sqlite3Strlen30(zCsr);
for ( i = 0; i < 16 && i < pMem.n; i++ )
{
sqlite3_snprintf( 100, zCsr, "%02X", ( (int)pMem.zBLOB[i] & 0xFF ) );
zBuf.Append( zCsr );//zCsr += sqlite3Strlen30(zCsr);
}
for ( i = 0; i < 16 && i < pMem.n; i++ )
{
char z = (char)pMem.zBLOB[i];
if ( z < 32 || z > 126 )
zBuf.Append( '.' );//*zCsr++ = '.';
else
zBuf.Append( z );//*zCsr++ = z;
}
sqlite3_snprintf( 100, zCsr, "]%s", encnames[pMem.enc] );
zBuf.Append( zCsr );//zCsr += sqlite3Strlen30(zCsr);
if ( ( f & MEM_Zero ) != 0 )
{
sqlite3_snprintf( 100, zCsr, "+%dz", pMem.u.nZero );
zBuf.Append( zCsr );//zCsr += sqlite3Strlen30(zCsr);
}
//*zCsr = '\0';
}
else if ( ( f & MEM_Str ) != 0 )
{
int j;//, k;
zBuf.Append( ' ' );
if ( ( f & MEM_Dyn ) != 0 )
{
zBuf.Append( 'z' );
Debug.Assert( ( f & ( MEM_Static | MEM_Ephem ) ) == 0 );
}
else if ( ( f & MEM_Static ) != 0 )
{
zBuf.Append( 't' );
Debug.Assert( ( f & ( MEM_Dyn | MEM_Ephem ) ) == 0 );
}
else if ( ( f & MEM_Ephem ) != 0 )
{
zBuf.Append( 's' ); //zBuf.Append( 'e' );
Debug.Assert( ( f & ( MEM_Static | MEM_Dyn ) ) == 0 );
}
else
{
zBuf.Append( 's' );
}
//k = 2;
sqlite3_snprintf( 100, zCsr, "%d", pMem.n );//zBuf[k], "%d", pMem.n );
zBuf.Append( zCsr );
//k += sqlite3Strlen30( &zBuf[k] );
zBuf.Append( '[' );// zBuf[k++] = '[';
for ( j = 0; j < 15 && j < pMem.n; j++ )
{
u8 c = [|pMem.z|] != null ? (u8)pMem.z[j] : pMem.zBLOB[j];
if ( c >= 0x20 && c < 0x7f )
{
zBuf.Append( (char)c );//zBuf[k++] = c;
}
else
{
zBuf.Append( '.' );//zBuf[k++] = '.';
}
}
zBuf.Append( ']' );//zBuf[k++] = ']';
sqlite3_snprintf( 100, zCsr, encnames[pMem.enc] );//& zBuf[k], encnames[pMem.enc] );
zBuf.Append( zCsr );
//k += sqlite3Strlen30( &zBuf[k] );
//zBuf[k++] = 0;
}
}
#End If
End Class
End Namespace
]]>
</file>
</compilation>
Dim startNodes As New List(Of VisualBasicSyntaxNode)
Dim endNodes As New List(Of VisualBasicSyntaxNode)
Dim comp = CompileAndGetModelAndSpan(program, startNodes, endNodes, Nothing, Nothing,
parseOptions:=
VisualBasicParseOptions.Default.WithPreprocessorSymbols(
KeyValuePairUtil.Create("SQLITE_DEBUG", CObj(True))))
Assert.Equal(4, startNodes.Count)
Assert.Equal(SyntaxKind.DictionaryAccessExpression, startNodes(2).Kind)
Dim expr = DirectCast(startNodes(2), MemberAccessExpressionSyntax)
Dim model = comp.GetSemanticModel(comp.SyntaxTrees(0))
Dim analysis = model.AnalyzeDataFlow(expr) ' NO THROW
analysis = model.AnalyzeDataFlow(expr.Expression) ' NO THROW
analysis = model.AnalyzeDataFlow(expr.Name) ' NO THROW
End Sub
<WorkItem(768094, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/768094")>
<Fact()>
Public Sub Bug768094c()
Dim program =
<compilation>
<file name="a.b">
<![CDATA[
Imports u32 = System.UInt32
Class Clazz
u32 aFrameCksum([|2|]) = {0, 0}
End Class
]]>
</file>
</compilation>
Dim startNodes As New List(Of VisualBasicSyntaxNode)
Dim endNodes As New List(Of VisualBasicSyntaxNode)
Dim comp = CompileAndGetModelAndSpan(program, startNodes, endNodes, Nothing, Nothing)
Assert.Equal(2, startNodes.Count)
Assert.Equal(SyntaxKind.NumericLiteralExpression, startNodes(0).Kind)
Dim expr = DirectCast(startNodes(0), ExpressionSyntax)
Dim model = comp.GetSemanticModel(comp.SyntaxTrees(0))
Dim analysis = model.AnalyzeDataFlow(expr) ' NO THROW
End Sub
<WorkItem(768094, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/768094")>
<Fact()>
Public Sub Bug768094d()
Dim program =
<compilation>
<file name="a.b">
<![CDATA[
Imports u32 = System.UInt32
Class Clazz
u32 aFrameCksum([|2|])
End Class
]]>
</file>
</compilation>
Dim startNodes As New List(Of VisualBasicSyntaxNode)
Dim endNodes As New List(Of VisualBasicSyntaxNode)
Dim comp = CompileAndGetModelAndSpan(program, startNodes, endNodes, Nothing, Nothing)
Assert.Equal(2, startNodes.Count)
Assert.Equal(SyntaxKind.NumericLiteralExpression, startNodes(0).Kind)