public void ExpressionInCode(string expression, bool isImplicit)
{
ExpressionBlock expressionBlock;
if (isImplicit)
{
expressionBlock =
new ExpressionBlock(
Factory.CodeTransition(),
Factory.Code(expression)
.AsImplicitExpression(VBCodeParser.DefaultKeywords, acceptTrailingDot: true)
.Accepts(AcceptedCharacters.NonWhiteSpace));
}
else
{
expressionBlock =
new ExpressionBlock(
Factory.CodeTransition(),
Factory.MetaCode("(").Accepts(AcceptedCharacters.None),
Factory.Code(expression).AsExpression(),
Factory.MetaCode(")").Accepts(AcceptedCharacters.None));
}
string code;
if (isImplicit)
{
code = "If foo IsNot Nothing Then" + Environment.NewLine
+ " @" + expression + Environment.NewLine
+ "End If";
}
else
{
code = "If foo IsNot Nothing Then" + Environment.NewLine
+ " @(" + expression + ")" + Environment.NewLine
+ "End If";
}
ParseBlockTest(code,
new StatementBlock(
Factory.Code("If foo IsNot Nothing Then\r\n ")
.AsStatement(),
expressionBlock,
Factory.Code("\r\nEnd If")
.AsStatement()
.Accepts(AcceptedCharacters.None)));
}
public void AddRemoveTagHelperChunk_AddsChunkToTopLevelCodeTree()
{
// Arrange
var spanFactory = SpanFactory.CreateCsHtml();
var builder = new CodeTreeBuilder();
var block = new ExpressionBlock();
var removeTagHelperDirective = spanFactory.MetaCode(SyntaxConstants.CSharp.RemoveTagHelperKeyword + " ");
// Act
builder.StartChunkBlock<ExpressionBlockChunk>(block);
builder.AddRemoveTagHelperChunk("some text", removeTagHelperDirective);
builder.EndChunkBlock();
// Assert
Assert.Equal(2, builder.CodeTree.Chunks.Count);
var chunkBlock = Assert.IsType<ExpressionBlockChunk>(builder.CodeTree.Chunks.First());
Assert.Empty(chunkBlock.Children);
var removeTagHelperChunk = Assert.IsType<RemoveTagHelperChunk>(builder.CodeTree.Chunks.Last());
Assert.Equal(removeTagHelperChunk.LookupText, "some text");
}
public void AddAddTagHelperChunk_AddsChunkToTopLevelChunkTree()
{
// Arrange
var spanFactory = SpanFactory.CreateCsHtml();
var builder = new ChunkTreeBuilder();
var block = new ExpressionBlock();
var addTagHelperDirective = spanFactory.MetaCode(SyntaxConstants.CSharp.AddTagHelperKeyword + " ");
// Act
builder.StartParentChunk<ExpressionBlockChunk>(block);
builder.AddAddTagHelperChunk("some text", addTagHelperDirective);
builder.EndParentChunk();
// Assert
Assert.Equal(2, builder.Root.Children.Count);
var parentChunk = Assert.IsType<ExpressionBlockChunk>(builder.Root.Children.First());
Assert.Empty(parentChunk.Children);
var addTagHelperChunk = Assert.IsType<AddTagHelperChunk>(builder.Root.Children.Last());
Assert.Equal(addTagHelperChunk.LookupText, "some text");
}