/// <summary>
/// Instantiates a new <see cref="ParserResults"/> instance.
/// </summary>
/// <param name="success"><c>true</c> if parsing was successful, <c>false</c> otherwise.</param>
/// <param name="document">The <see cref="Block"/> for the syntax tree.</param>
/// <param name="tagHelperDescriptors">
/// The <see cref="TagHelperDescriptor"/>s that apply to the current Razor document.
/// </param>
/// <param name="errorSink">
/// The <see cref="ErrorSink"/> used to collect <see cref="RazorError"/>s encountered when parsing the
/// current Razor document.
/// </param>
protected ParserResults(bool success,
Block document,
IEnumerable<TagHelperDescriptor> tagHelperDescriptors,
ErrorSink errorSink)
{
if (document == null)
{
throw new ArgumentNullException(nameof(document));
}
if (tagHelperDescriptors == null)
{
throw new ArgumentNullException(nameof(tagHelperDescriptors));
}
if (errorSink == null)
{
throw new ArgumentNullException(nameof(errorSink));
}
Success = success;
Document = document;
TagHelperDescriptors = tagHelperDescriptors;
ErrorSink = errorSink;
ParserErrors = errorSink.Errors;
Prefix = tagHelperDescriptors.FirstOrDefault()?.Prefix;
}
/// <inheritdoc />
protected override IEnumerable<TagHelperDescriptor> GetTagHelperDescriptors(
Block documentRoot,
ErrorSink errorSink)
{
if (documentRoot == null)
{
throw new ArgumentNullException(nameof(documentRoot));
}
if (errorSink == null)
{
throw new ArgumentNullException(nameof(errorSink));
}
var visitor = new ViewImportsTagHelperDirectiveSpanVisitor(
TagHelperDescriptorResolver,
_viewImportsDirectiveDescriptors,
errorSink);
var descriptors = visitor.GetDescriptors(documentRoot);
foreach (var descriptor in descriptors)
{
foreach (var attributeDescriptor in descriptor.Attributes)
{
if (attributeDescriptor.IsIndexer &&
string.Equals(
attributeDescriptor.TypeName,
_modelExpressionTypeName,
StringComparison.Ordinal))
{
errorSink.OnError(
SourceLocation.Undefined,
Resources.FormatMvcRazorParser_InvalidPropertyType(
descriptor.TypeName,
attributeDescriptor.Name,
_modelExpressionTypeName),
length: 0);
}
}
}
return descriptors;
}
/// <summary>
/// Instantiates a new <see cref="ParserResults"/> instance.
/// </summary>
/// <param name="document">The <see cref="Block"/> for the syntax tree.</param>
/// <param name="tagHelperDescriptors">
/// The <see cref="TagHelperDescriptor"/>s that apply to the current Razor document.
/// </param>
/// <param name="errorSink">
/// The <see cref="ErrorSink"/> used to collect <see cref="RazorError"/>s encountered when parsing the
/// current Razor document.
/// </param>
public ParserResults(Block document,
IEnumerable<TagHelperDescriptor> tagHelperDescriptors,
ErrorSink errorSink)
: this(!errorSink.Errors.Any(), document, tagHelperDescriptors, errorSink)
{
if (document == null)
{
throw new ArgumentNullException(nameof(document));
}
if (tagHelperDescriptors == null)
{
throw new ArgumentNullException(nameof(tagHelperDescriptors));
}
if (errorSink == null)
{
throw new ArgumentNullException(nameof(errorSink));
}
}
public void RenderAttributeValue_RendersModelExpressionsCorrectly(
string modelExpressionType,
string propertyType,
string expectedValue)
{
// Arrange
var renderer = new MvcTagHelperAttributeValueCodeRenderer(
new GeneratedTagHelperAttributeContext
{
ModelExpressionTypeName = modelExpressionType,
CreateModelExpressionMethodName = "SomeMethod"
});
var attributeDescriptor = new TagHelperAttributeDescriptor
{
Name = "MyAttribute",
PropertyName = "SomeProperty",
TypeName = propertyType,
};
var writer = new CSharpCodeWriter();
var generatorContext = new ChunkGeneratorContext(
host: null,
className: string.Empty,
rootNamespace: string.Empty,
sourceFile: string.Empty,
shouldGenerateLinePragmas: true);
var errorSink = new ErrorSink();
var context = new CodeGeneratorContext(generatorContext, errorSink);
// Act
renderer.RenderAttributeValue(attributeDescriptor, writer, context,
(codeWriter) =>
{
codeWriter.Write("MyValue");
},
complexValue: false);
// Assert
Assert.Equal(expectedValue, writer.GenerateCode());
}
public void Compile_ReturnsFailedResultIfParseFails()
{
// Arrange
var errorSink = new ErrorSink();
errorSink.OnError(new RazorError("some message", 1, 1, 1, 1));
var generatorResult = new GeneratorResults(
new Block(new BlockBuilder { Type = BlockType.Comment }),
Enumerable.Empty<TagHelperDescriptor>(),
errorSink,
new CodeGeneratorResult("", new LineMapping[0]),
new ChunkTree());
var host = new Mock<IMvcRazorHost>();
host.Setup(h => h.GenerateCode(It.IsAny<string>(), It.IsAny<Stream>()))
.Returns(generatorResult)
.Verifiable();
var fileInfo = new Mock<IFileInfo>();
fileInfo.Setup(f => f.CreateReadStream())
.Returns(Stream.Null);
var compiler = new Mock<ICompilationService>(MockBehavior.Strict);
var relativeFileInfo = new RelativeFileInfo(fileInfo.Object, @"Views\index\home.cshtml");
var razorService = new RazorCompilationService(compiler.Object, host.Object, GetOptions());
// Act
var result = razorService.Compile(relativeFileInfo);
// Assert
Assert.NotNull(result.CompilationFailures);
Assert.Collection(result.CompilationFailures,
failure =>
{
var message = Assert.Single(failure.Messages);
Assert.Equal("some message", message.Message);
});
host.Verify();
}
/// <summary>
/// Instantiates a new <see cref="ParserResults"/> instance.
/// </summary>
/// <param name="document">The <see cref="Block"/> for the syntax tree.</param>
/// <param name="tagHelperDescriptors">
/// The <see cref="TagHelperDescriptor"/>s that apply to the current Razor document.
/// </param>
/// <param name="errorSink">
/// The <see cref="ErrorSink"/> used to collect <see cref="RazorError"/>s encountered when parsing the
/// current Razor document.
/// </param>
public ParserResults([NotNull] Block document,
[NotNull] IEnumerable <TagHelperDescriptor> tagHelperDescriptors,
[NotNull] ErrorSink errorSink)
: this(!errorSink.Errors.Any(), document, tagHelperDescriptors, errorSink)
{
}
public IEnumerable<TagHelperDescriptor> GetTagHelperDescriptorsPublic(
Block documentRoot,
ErrorSink errorSink)
{
return GetTagHelperDescriptors(documentRoot, errorSink);
}
protected override TagHelperDescriptorResolutionContext GetTagHelperDescriptorResolutionContext(
IEnumerable<TagHelperDirectiveDescriptor> descriptors,
ErrorSink errorSink)
{
var directivesToImport = MergeDirectiveDescriptors(descriptors, _viewImportsDirectiveDescriptors);
return base.GetTagHelperDescriptorResolutionContext(directivesToImport, errorSink);
}
public ViewImportsTagHelperDirectiveSpanVisitor(
ITagHelperDescriptorResolver descriptorResolver,
IEnumerable<TagHelperDirectiveDescriptor> viewImportsDirectiveDescriptors,
ErrorSink errorSink)
: base(descriptorResolver, errorSink)
{
_viewImportsDirectiveDescriptors = viewImportsDirectiveDescriptors;
}