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Merge rendermode feature to main. Code flow only PR.
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31 changes: 31 additions & 0 deletions
31
...mpiler/Microsoft.AspNetCore.Razor.Language/src/Components/ComponentRenderModeDirective.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| #nullable enable | ||
|
|
||
| using System; | ||
|
|
||
| namespace Microsoft.AspNetCore.Razor.Language.Components; | ||
|
|
||
| internal sealed class ComponentRenderModeDirective | ||
| { | ||
| public static readonly DirectiveDescriptor Directive = DirectiveDescriptor.CreateDirective( | ||
| "rendermode", | ||
| DirectiveKind.SingleLine, | ||
| builder => | ||
| { | ||
| builder.AddIdentifierOrExpression(ComponentResources.RenderModeDirective_Token_Name, ComponentResources.RenderModeDirective_Token_Description); | ||
| builder.Usage = DirectiveUsage.FileScopedSinglyOccurring; | ||
| builder.Description = ComponentResources.RenderModeDirective_Documentation; | ||
| }); | ||
|
|
||
| public static void Register(RazorProjectEngineBuilder builder) | ||
| { | ||
| if (builder == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(builder)); | ||
| } | ||
|
|
||
| builder.AddDirective(Directive, FileKinds.Component); | ||
| builder.Features.Add(new ComponentRenderModeDirectivePass()); | ||
| } | ||
| } |
110 changes: 110 additions & 0 deletions
110
...er/Microsoft.AspNetCore.Razor.Language/src/Components/ComponentRenderModeDirectivePass.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| #nullable enable | ||
|
|
||
| using System.Diagnostics; | ||
| using System.Linq; | ||
| using Microsoft.AspNetCore.Razor.Language.Intermediate; | ||
|
|
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| namespace Microsoft.AspNetCore.Razor.Language.Components; | ||
|
|
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| internal sealed class ComponentRenderModeDirectivePass : IntermediateNodePassBase, IRazorDirectiveClassifierPass | ||
| { | ||
| private const string GeneratedRenderModeAttributeName = "__PrivateComponentRenderModeAttribute"; | ||
|
|
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| protected override void ExecuteCore(RazorCodeDocument codeDocument, DocumentIntermediateNode documentNode) | ||
| { | ||
| var @namespace = documentNode.FindPrimaryNamespace(); | ||
| var @class = documentNode.FindPrimaryClass(); | ||
| if (@namespace == null || @class == null) | ||
| { | ||
| return; | ||
| } | ||
|
|
||
| var directives = documentNode.FindDirectiveReferences(ComponentRenderModeDirective.Directive); | ||
| if (directives.Count == 0) | ||
| { | ||
| return; | ||
| } | ||
|
|
||
| // We don't need to worry about duplicate attributes as we have already replaced any multiples with MalformedDirective | ||
| Debug.Assert(directives.Count == 1); | ||
|
|
||
| var child = ((DirectiveIntermediateNode)directives[0].Node).Children.FirstOrDefault(); | ||
| if (child == null) | ||
| { | ||
| return; | ||
| } | ||
|
|
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| // generate the inner attribute class | ||
| var classDecl = new ClassDeclarationIntermediateNode() | ||
| { | ||
| ClassName = GeneratedRenderModeAttributeName, | ||
| BaseType = $"global::{ComponentsApi.RenderModeAttribute.FullTypeName}", | ||
| }; | ||
| classDecl.Modifiers.Add("private"); | ||
| classDecl.Modifiers.Add("sealed"); | ||
| classDecl.Children.Add(new CSharpCodeIntermediateNode() | ||
| { | ||
| Children = | ||
| { | ||
| new IntermediateToken() | ||
| { | ||
| Kind = TokenKind.CSharp, | ||
| Content = $"private static global::{ComponentsApi.IComponentRenderMode.FullTypeName} ModeImpl => " | ||
| }, | ||
| new CSharpCodeIntermediateNode() | ||
| { | ||
| Source = child.Source, | ||
| Children = | ||
| { | ||
| child is not DirectiveTokenIntermediateNode directiveToken | ||
| ? child | ||
| : new IntermediateToken() | ||
| { | ||
| Kind = TokenKind.CSharp, | ||
| Content = directiveToken.Content | ||
| } | ||
| } | ||
| }, | ||
| new IntermediateToken() | ||
| { | ||
| Kind = TokenKind.CSharp, | ||
| Content = ";" | ||
| } | ||
| } | ||
| }); | ||
| classDecl.Children.Add(new CSharpCodeIntermediateNode() | ||
| { | ||
| Children = | ||
| { | ||
| new IntermediateToken() | ||
| { | ||
| Kind = TokenKind.CSharp, | ||
| Content = $"public override global::{ComponentsApi.IComponentRenderMode.FullTypeName} Mode => ModeImpl;" | ||
| } | ||
| } | ||
| }); | ||
| @class.Children.Add(classDecl); | ||
|
|
||
| // generate the attribute usage on top of the class | ||
| var attributeNode = new CSharpCodeIntermediateNode(); | ||
| attributeNode.Children.Add(new IntermediateToken() | ||
| { | ||
| Kind = TokenKind.CSharp, | ||
| Content = $"[global::{@namespace.Content}.{@class.ClassName}.{GeneratedRenderModeAttributeName}]", | ||
| }); | ||
|
|
||
| // Insert the new attribute on top of the class | ||
| var childCount = @namespace.Children.Count; | ||
| for (var i = 0; i < childCount; i++) | ||
| { | ||
| if (object.ReferenceEquals(@namespace.Children[i], @class)) | ||
| { | ||
| @namespace.Children.Insert(i, attributeNode); | ||
| break; | ||
| } | ||
| } | ||
| Debug.Assert(@namespace.Children.Count == childCount + 1); | ||
| } | ||
| } |
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