private static INamedTypeSymbol GetPageModel(RazorPageItem razorPage, Compilation compilation, Dictionary <string, List <string> > usingsByDirectory)
{
if (razorPage.Model == null)
{
return(null);
}
// First try to get the page model based on the usings in this file
var explicitUsings = PagesFacts.ExtractUsings(razorPage);
var pageModel = FindPageModel(compilation, razorPage.Model, explicitUsings);
if (pageModel != null)
{
return(pageModel);
}
// Walk up the path and try to get the page model based on usings in the implicitly included files
foreach (var path in EnumerateUpPath(razorPage.AdditionalText.Path))
{
if (usingsByDirectory.TryGetValue(path, out var usings))
{
pageModel = FindPageModel(compilation, razorPage.Model, usings);
if (pageModel != null)
{
return(pageModel);
}
}
}
// Last try to get the page model based on what is in @model without a using
return(FindPageModel(compilation, razorPage.Model, new List <string> {
""
}));
public void ExtractUsings_ReturnsEmpty_WhenNoUsings()
{
var file = new InMemoryAdditionalText("", "");
var pageData = new RazorPageItem(file);
// Act
var result = PagesFacts.ExtractUsings(pageData);
// Assert
result.Should().BeEmpty();
}
public void ExtractUsings_ReturnsUsings()
{
var file = new InMemoryAdditionalText("", @"@using System
@using System.Text");
var pageData = new RazorPageItem(file);
// Act
var result = PagesFacts.ExtractUsings(pageData);
// Assert
result.Should().BeEquivalentTo(new[]
{
"System",
"System.Text",
});
}