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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
using System;
using System.IO;
using ICSharpCode.NRefactory.VB.Parser;
using NUnit.Framework;
namespace ICSharpCode.NRefactory.VB.Tests.Lexer
{
[TestFixture]
public class ImplicitLineContinuationTests
{
[Test]
public void Example1()
{
string code = @"Module Test
Sub Print(
Param1 As Integer,
Param2 As Integer)
If (Param1 < Param2) Or
(Param1 > Param2) Then
Console.WriteLine(""Not equal"")
End If
End Sub
End Module";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(lexer, Tokens.Module, Tokens.Identifier, Tokens.EOL,
Tokens.Sub, Tokens.Identifier, Tokens.OpenParenthesis,
Tokens.Identifier, Tokens.As, Tokens.Integer, Tokens.Comma,
Tokens.Identifier, Tokens.As, Tokens.Integer, Tokens.CloseParenthesis, Tokens.EOL,
Tokens.If, Tokens.OpenParenthesis, Tokens.Identifier, Tokens.LessThan, Tokens.Identifier, Tokens.CloseParenthesis, Tokens.Or,
Tokens.OpenParenthesis, Tokens.Identifier, Tokens.GreaterThan, Tokens.Identifier, Tokens.CloseParenthesis, Tokens.Then, Tokens.EOL,
Tokens.Identifier, Tokens.Dot, Tokens.Identifier, Tokens.OpenParenthesis, Tokens.LiteralString, Tokens.CloseParenthesis, Tokens.EOL,
Tokens.End, Tokens.If, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Module);
}
[Test]
public void QualifierInWith()
{
string code = @"Module Test
Sub Print
With xml
Dim a = b.
d
Dim c = .
Count
End With
End Sub
End Module";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(lexer, Tokens.Module, Tokens.Identifier, Tokens.EOL,
Tokens.Sub, Tokens.Identifier, Tokens.EOL,
Tokens.With, Tokens.Identifier, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.Identifier, Tokens.Dot, Tokens.Identifier, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.Dot, Tokens.EOL,
Tokens.Identifier, Tokens.EOL,
Tokens.End, Tokens.With, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Module);
}
[Test]
public void Example2()
{
string code = @"Module Test
Sub Print
Dim a = _
y
End Sub
End Module";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(lexer, Tokens.Module, Tokens.Identifier, Tokens.EOL,
Tokens.Sub, Tokens.Identifier, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.EOL, Tokens.Identifier, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Module);
}
[Test]
public void Query()
{
string code = @"Module Test
Sub A
Dim q = From x In a
Select x
End Sub
End Module";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(lexer, Tokens.Module, Tokens.Identifier, Tokens.EOL,
Tokens.Sub, Tokens.Identifier, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.From, Tokens.Identifier, Tokens.In, Tokens.Identifier,
Tokens.Select, Tokens.Identifier, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Module);
}
[Test]
public void Query1()
{
string code = @"Module Test
Sub A
Dim actions = From a in b Select Sub()
Dim i = 1
Select Case i
End Select
End Sub
End Sub
End Module";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(lexer, Tokens.Module, Tokens.Identifier, Tokens.EOL,
Tokens.Sub, Tokens.Identifier, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.From, Tokens.Identifier, Tokens.In, Tokens.Identifier, Tokens.Select, Tokens.Sub, Tokens.OpenParenthesis, Tokens.CloseParenthesis, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.LiteralInteger, Tokens.EOL,
Tokens.Select, Tokens.Case, Tokens.Identifier, Tokens.EOL,
Tokens.End, Tokens.Select, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Module);
}
/// <remarks>tests http://community.sharpdevelop.net/forums/p/12068/32893.aspx#32893</remarks>
[Test]
public void Bug_Thread12068()
{
string code = @"Class MainClass
Public Shared Sub Main()
Dim categoryNames = From p In AList _
Select p.AFunction(1,2,3) _
Distinct
End Sub
End Class";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(
lexer, Tokens.Class, Tokens.Identifier, Tokens.EOL,
Tokens.Public, Tokens.Shared, Tokens.Sub, Tokens.Identifier, Tokens.OpenParenthesis, Tokens.CloseParenthesis, Tokens.EOL,
Tokens.Dim, Tokens.Identifier, Tokens.Assign, Tokens.From, Tokens.Identifier, Tokens.In, Tokens.Identifier,
Tokens.Select, Tokens.Identifier, Tokens.Dot, Tokens.Identifier, Tokens.OpenParenthesis, Tokens.LiteralInteger,
Tokens.Comma, Tokens.LiteralInteger, Tokens.Comma, Tokens.LiteralInteger, Tokens.CloseParenthesis,
Tokens.Distinct, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Class
);
}
[Test]
public void LineContinuationAfterAttributes()
{
string code = @"<TestFixture>
Public Class TestContinuation
<Test>
Public Sub TestMethod
Assert.Fail
End Sub
<Test> _
Public Sub TestMethod2
Assert.Fail
End Sub
End Class";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(
lexer, Tokens.LessThan, Tokens.Identifier, Tokens.GreaterThan,
Tokens.Public, Tokens.Class, Tokens.Identifier, Tokens.EOL,
Tokens.LessThan, Tokens.Identifier, Tokens.GreaterThan,
Tokens.Public, Tokens.Sub, Tokens.Identifier, Tokens.EOL,
Tokens.Identifier, Tokens.Dot, Tokens.Identifier, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.LessThan, Tokens.Identifier, Tokens.GreaterThan,
Tokens.Public, Tokens.Sub, Tokens.Identifier, Tokens.EOL,
Tokens.Identifier, Tokens.Dot, Tokens.Identifier, Tokens.EOL,
Tokens.End, Tokens.Sub, Tokens.EOL,
Tokens.End, Tokens.Class
);
}
[Test]
public void NoILCAfterGlobalAttributes()
{
string code = "<Assembly: AssemblyTitle(\"My.UnitTests\")>" + Environment.NewLine +
"<Assembly: AssemblyDescription(\"\")>";
VBLexer lexer = GenerateLexer(new StringReader(code));
CheckTokens(
lexer, Tokens.LessThan, Tokens.Assembly, Tokens.Colon,
Tokens.Identifier, Tokens.OpenParenthesis, Tokens.LiteralString,
Tokens.CloseParenthesis, Tokens.GreaterThan, Tokens.EOL,
Tokens.LessThan, Tokens.Assembly, Tokens.Colon,
Tokens.Identifier, Tokens.OpenParenthesis, Tokens.LiteralString,
Tokens.CloseParenthesis, Tokens.GreaterThan
);
}
#region Helpers
VBLexer GenerateLexer(StringReader sr)
{
return new VBLexer(sr);
}
void CheckTokens(VBLexer lexer, params int[] tokens)
{
for (int i = 0; i < tokens.Length; i++) {
int token = tokens[i];
Token t = lexer.NextToken();
int next = t.Kind;
Assert.AreEqual(token, next, "{2} of {3}: {0} != {1}; at {4}", Tokens.GetTokenString(token), Tokens.GetTokenString(next), i + 1, tokens.Length, t.Location);
}
}
#endregion
}
}
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