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Fixes additional scenarios with generic type constraints
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@javiercn
javiercn committed Jan 25, 2022
1 parent 7030b36 commit 64c9f3d
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168 changes: 165 additions & 3 deletions ...rosoft.AspNetCore.Razor.Language/test/IntegrationTests/ComponentCodeGenerationTestBase.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3930,9 +3930,171 @@ public class WeatherForecast { }

// Act
var generated = CompileToCSharp(@"
<Grid
TItem=""WeatherForecast""
Items=""@(Array.Empty<WeatherForecast>())"">
<Grid TItem=""WeatherForecast"" Items=""@(Array.Empty<WeatherForecast>())"">
<ColumnsTemplate>
<Column Title=""Date"" FieldName=""Date"" Format=""d"" Width=""10rem"" />
</ColumnsTemplate>
</Grid>
");

// Assert
AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
CompileToAssembly(generated);
}

[Fact]
public void CascadingGenericInference_Inferred_MultipleConstraints()
{
// Arrange
AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Components;
namespace Test
{
[CascadingTypeParameter(nameof(TItem))]
public class Grid<TItem> : ComponentBase
{
[Parameter] public RenderFragment ColumnsTemplate { get; set; }
}
public abstract partial class BaseColumn<TItem> : ComponentBase where TItem : class, new()
{
[CascadingParameter]
internal Grid<TItem> Grid { get; set; }
}
public class Column<TItem> : BaseColumn<TItem>, IGridFieldColumn<TItem> where TItem : class, new()
{
[Parameter]
public string FieldName { get; set; }
}
internal interface IGridFieldColumn<TItem> where TItem : class
{
}
public class WeatherForecast { }
}
"));

// Act
var generated = CompileToCSharp(@"
<Grid TItem=""WeatherForecast"" Items=""@(Array.Empty<WeatherForecast>())"">
<ColumnsTemplate>
<Column Title=""Date"" FieldName=""Date"" Format=""d"" Width=""10rem"" />
</ColumnsTemplate>
</Grid>
");

// Assert
AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
CompileToAssembly(generated);
}

[Fact]
public void CascadingGenericInference_Inferred_MultipleConstraints_ClassesAndInterfaces()
{
// Arrange
AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Components;
using Models;
namespace Test
{
[CascadingTypeParameter(nameof(TItem))]
public class Grid<TItem> : ComponentBase
{
[Parameter] public RenderFragment ColumnsTemplate { get; set; }
}
public abstract partial class BaseColumn<TItem> : ComponentBase where TItem : WeatherForecast, new()
{
[CascadingParameter]
internal Grid<TItem> Grid { get; set; }
}
public class Column<TItem> : BaseColumn<TItem>, IGridFieldColumn<TItem> where TItem : WeatherForecast, new()
{
[Parameter]
public string FieldName { get; set; }
}
internal interface IGridFieldColumn<TItem> where TItem : class
{
}
}
namespace Models {
public class WeatherForecast { }
}"));

// Act
var generated = CompileToCSharp(@"
@using Models;
<Grid TItem=""WeatherForecast"" Items=""@(Array.Empty<WeatherForecast>())"">
<ColumnsTemplate>
<Column Title=""Date"" FieldName=""Date"" Format=""d"" Width=""10rem"" />
</ColumnsTemplate>
</Grid>
");

// Assert
AssertDocumentNodeMatchesBaseline(generated.CodeDocument);
AssertCSharpDocumentMatchesBaseline(generated.CodeDocument);
CompileToAssembly(generated);
}

[Fact]
public void CascadingGenericInference_Inferred_MultipleConstraints_GenericClassConstraints()
{
// Arrange
AdditionalSyntaxTrees.Add(Parse(@"
using Microsoft.AspNetCore.Components;
namespace Test
{
[CascadingTypeParameter(nameof(TItem))]
public class Grid<TItem> : ComponentBase
{
[Parameter] public RenderFragment ColumnsTemplate { get; set; }
}
public abstract partial class BaseColumn<TItem> : ComponentBase where TItem : System.Collections.Generic.IEnumerable<TItem>
{
[CascadingParameter]
internal Grid<TItem> Grid { get; set; }
}
public class Column<TItem> : BaseColumn<TItem> where TItem : System.Collections.Generic.IEnumerable<TItem>
{
[Parameter]
public string FieldName { get; set; }
}
}
namespace Models {
using System;
using System.Collections;
using System.Collections.Generic;
public class WeatherForecast : IEnumerable<WeatherForecast> {
public IEnumerator<WeatherForecast> GetEnumerator()
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
throw new NotImplementedException();
}
}
}"));

// Act
var generated = CompileToCSharp(@"
@using Models;
<Grid TItem=""WeatherForecast"" Items=""@(Array.Empty<WeatherForecast>())"">
<ColumnsTemplate>
<Column Title=""Date"" FieldName=""Date"" Format=""d"" Width=""10rem"" />
</ColumnsTemplate>
Expand Down
80 changes: 80 additions & 0 deletions ...ationTest/CascadingGenericInference_Inferred_MultipleConstraints/TestComponent.codegen.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,80 @@
// <auto-generated/>
#pragma warning disable 1591
namespace Test
{
#line hidden
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components;
public partial class TestComponent : global::Microsoft.AspNetCore.Components.ComponentBase
{
#pragma warning disable 219
private void __RazorDirectiveTokenHelpers__() {
}
#pragma warning restore 219
#pragma warning disable 0414
private static System.Object __o = null;
#pragma warning restore 0414
#pragma warning disable 1998
protected override void BuildRenderTree(global::Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder __builder)
{
__o = typeof(
#nullable restore
#line 1 "x:\dir\subdir\Test\TestComponent.cshtml"
WeatherForecast

#line default
#line hidden
#nullable disable
);
__o =
#nullable restore
#line 1 "x:\dir\subdir\Test\TestComponent.cshtml"
Array.Empty<WeatherForecast>()

#line default
#line hidden
#nullable disable
;
__builder.AddAttribute(-1, "ColumnsTemplate", (global::Microsoft.AspNetCore.Components.RenderFragment)((__builder2) => {
global::__Blazor.Test.TestComponent.TypeInference.CreateColumn_0(__builder2, -1, default(WeatherForecast), -1, "", -1, "", -1, "", -1, "");
#nullable restore
#line 3 "x:\dir\subdir\Test\TestComponent.cshtml"
__o = typeof(global::Test.Column<>);

#line default
#line hidden
#nullable disable
}
));
#nullable restore
#line 1 "x:\dir\subdir\Test\TestComponent.cshtml"
__o = typeof(global::Test.Grid<>);

#line default
#line hidden
#nullable disable
}
#pragma warning restore 1998
}
}
namespace __Blazor.Test.TestComponent
{
#line hidden
internal static class TypeInference
{
public static void CreateColumn_0<TItem>(global::Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder __builder, int seq, TItem __syntheticArg0, int __seq0, global::System.Object __arg0, int __seq1, global::System.String __arg1, int __seq2, global::System.Object __arg2, int __seq3, global::System.Object __arg3)
where TItem : class, new()
{
__builder.OpenComponent<global::Test.Column<TItem>>(seq);
__builder.AddAttribute(__seq0, "Title", __arg0);
__builder.AddAttribute(__seq1, "FieldName", __arg1);
__builder.AddAttribute(__seq2, "Format", __arg2);
__builder.AddAttribute(__seq3, "Width", __arg3);
__builder.CloseComponent();
}
}
}
#pragma warning restore 1591
45 changes: 45 additions & 0 deletions ...enerationTest/CascadingGenericInference_Inferred_MultipleConstraints/TestComponent.ir.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,45 @@
Document -
NamespaceDeclaration - - Test
UsingDirective - (3:1,1 [12] ) - System
UsingDirective - (18:2,1 [32] ) - System.Collections.Generic
UsingDirective - (53:3,1 [17] ) - System.Linq
UsingDirective - (73:4,1 [28] ) - System.Threading.Tasks
UsingDirective - (104:5,1 [37] ) - Microsoft.AspNetCore.Components
ClassDeclaration - - public partial - TestComponent - global::Microsoft.AspNetCore.Components.ComponentBase -
DesignTimeDirective -
CSharpCode -
IntermediateToken - - CSharp - #pragma warning disable 0414
CSharpCode -
IntermediateToken - - CSharp - private static System.Object __o = null;
CSharpCode -
IntermediateToken - - CSharp - #pragma warning restore 0414
MethodDeclaration - - protected override - void - BuildRenderTree
Component - (0:0,0 [203] x:\dir\subdir\Test\TestComponent.cshtml) - Grid
ComponentChildContent - (78:1,4 [116] x:\dir\subdir\Test\TestComponent.cshtml) - ColumnsTemplate - context
HtmlContent - (95:1,21 [10] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (95:1,21 [10] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
Component - (105:2,8 [65] x:\dir\subdir\Test\TestComponent.cshtml) - Column
ComponentAttribute - - Title - - AttributeStructure.DoubleQuotes
HtmlContent - (120:2,23 [4] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (120:2,23 [4] x:\dir\subdir\Test\TestComponent.cshtml) - Html - Date
ComponentAttribute - (137:2,40 [4] x:\dir\subdir\Test\TestComponent.cshtml) - FieldName - FieldName - AttributeStructure.DoubleQuotes
HtmlContent - (137:2,40 [4] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (137:2,40 [4] x:\dir\subdir\Test\TestComponent.cshtml) - Html - Date
ComponentAttribute - - Format - - AttributeStructure.DoubleQuotes
HtmlContent - (151:2,54 [1] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (151:2,54 [1] x:\dir\subdir\Test\TestComponent.cshtml) - Html - d
ComponentAttribute - - Width - - AttributeStructure.DoubleQuotes
HtmlContent - (161:2,64 [5] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (161:2,64 [5] x:\dir\subdir\Test\TestComponent.cshtml) - Html - 10rem
HtmlContent - (170:2,73 [6] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (170:2,73 [6] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
ComponentTypeArgument - (13:0,13 [15] x:\dir\subdir\Test\TestComponent.cshtml) - TItem
LazyIntermediateToken - (13:0,13 [15] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - WeatherForecast
ComponentAttribute - - Items - - AttributeStructure.DoubleQuotes
CSharpExpression - (37:0,37 [33] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (39:0,39 [30] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - Array.Empty<WeatherForecast>()
HtmlContent - (203:4,7 [2] x:\dir\subdir\Test\TestComponent.cshtml)
LazyIntermediateToken - (203:4,7 [2] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n
NamespaceDeclaration - - __Blazor.Test.TestComponent
ClassDeclaration - - internal static - TypeInference - -
ComponentTypeInferenceMethod - - __Blazor.Test.TestComponent.TypeInference - CreateColumn_0
10 changes: 10 additions & 0 deletions ...ionTest/CascadingGenericInference_Inferred_MultipleConstraints/TestComponent.mappings.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
Source Location: (13:0,13 [15] x:\dir\subdir\Test\TestComponent.cshtml)
|WeatherForecast|
Generated Location: (908:25,13 [15] )
|WeatherForecast|

Source Location: (39:0,39 [30] x:\dir\subdir\Test\TestComponent.cshtml)
|Array.Empty<WeatherForecast>()|
Generated Location: (1120:34,39 [30] )
|Array.Empty<WeatherForecast>()|

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