362 lines
16 KiB
C#
362 lines
16 KiB
C#
using System.Linq;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using Microsoft.CodeAnalysis.Diagnostics;
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namespace Godot.SourceGenerators
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{
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public static class Common
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{
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public static void ReportNonPartialGodotScriptClass(
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GeneratorExecutionContext context,
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ClassDeclarationSyntax cds, INamedTypeSymbol symbol
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)
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{
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string message =
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"Missing partial modifier on declaration of type '" +
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$"{symbol.FullQualifiedNameOmitGlobal()}' which is a subclass of '{GodotClasses.GodotObject}'";
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string description = $"{message}. Subclasses of '{GodotClasses.GodotObject}' " +
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"must be declared with the partial modifier.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0001",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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cds.GetLocation(),
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cds.SyntaxTree.FilePath));
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}
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public static void ReportNonPartialGodotScriptOuterClass(
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GeneratorExecutionContext context,
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TypeDeclarationSyntax outerTypeDeclSyntax
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)
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{
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var outerSymbol = context.Compilation
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.GetSemanticModel(outerTypeDeclSyntax.SyntaxTree)
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.GetDeclaredSymbol(outerTypeDeclSyntax);
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string fullQualifiedName = outerSymbol is INamedTypeSymbol namedTypeSymbol ?
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namedTypeSymbol.FullQualifiedNameOmitGlobal() :
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"type not found";
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string message =
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$"Missing partial modifier on declaration of type '{fullQualifiedName}', " +
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$"which contains one or more subclasses of '{GodotClasses.GodotObject}'";
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string description = $"{message}. Subclasses of '{GodotClasses.GodotObject}' and their " +
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"containing types must be declared with the partial modifier.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0002",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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outerTypeDeclSyntax.GetLocation(),
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outerTypeDeclSyntax.SyntaxTree.FilePath));
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}
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public static void ReportExportedMemberIsStatic(
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GeneratorExecutionContext context,
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ISymbol exportedMemberSymbol
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)
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{
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var locations = exportedMemberSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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bool isField = exportedMemberSymbol is IFieldSymbol;
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string message = $"Attempted to export static {(isField ? "field" : "property")}: " +
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$"'{exportedMemberSymbol.ToDisplayString()}'";
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string description = $"{message}. Only instance fields and properties can be exported." +
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" Remove the 'static' modifier or the '[Export]' attribute.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0101",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportExportedMemberTypeNotSupported(
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GeneratorExecutionContext context,
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ISymbol exportedMemberSymbol
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)
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{
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var locations = exportedMemberSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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bool isField = exportedMemberSymbol is IFieldSymbol;
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string message = $"The type of the exported {(isField ? "field" : "property")} " +
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$"is not supported: '{exportedMemberSymbol.ToDisplayString()}'";
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string description = $"{message}. Use a supported type or remove the '[Export]' attribute.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0102",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportExportedMemberIsReadOnly(
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GeneratorExecutionContext context,
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ISymbol exportedMemberSymbol
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)
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{
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var locations = exportedMemberSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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bool isField = exportedMemberSymbol is IFieldSymbol;
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string message = $"The exported {(isField ? "field" : "property")} " +
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$"is read-only: '{exportedMemberSymbol.ToDisplayString()}'";
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string description = isField ?
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$"{message}. Exported fields cannot be read-only." :
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$"{message}. Exported properties must be writable.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0103",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportExportedMemberIsWriteOnly(
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GeneratorExecutionContext context,
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ISymbol exportedMemberSymbol
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)
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{
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var locations = exportedMemberSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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string message = $"The exported property is write-only: '{exportedMemberSymbol.ToDisplayString()}'";
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string description = $"{message}. Exported properties must be readable.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0104",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportExportedMemberIsIndexer(
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GeneratorExecutionContext context,
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ISymbol exportedMemberSymbol
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)
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{
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var locations = exportedMemberSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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string message = $"Attempted to export indexer property: " +
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$"'{exportedMemberSymbol.ToDisplayString()}'";
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string description = $"{message}. Indexer properties can't be exported." +
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" Remove the '[Export]' attribute.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0105",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportSignalDelegateMissingSuffix(
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GeneratorExecutionContext context,
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INamedTypeSymbol delegateSymbol)
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{
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var locations = delegateSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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string message = "The name of the delegate must end with 'EventHandler': " +
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delegateSymbol.ToDisplayString() +
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$". Did you mean '{delegateSymbol.Name}EventHandler'?";
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string description = $"{message}. Rename the delegate accordingly or remove the '[Signal]' attribute.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0201",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportSignalParameterTypeNotSupported(
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GeneratorExecutionContext context,
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IParameterSymbol parameterSymbol)
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{
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var locations = parameterSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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string message = "The parameter of the delegate signature of the signal " +
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$"is not supported: '{parameterSymbol.ToDisplayString()}'";
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string description = $"{message}. Use supported types only or remove the '[Signal]' attribute.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0202",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static void ReportSignalDelegateSignatureMustReturnVoid(
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GeneratorExecutionContext context,
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INamedTypeSymbol delegateSymbol)
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{
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var locations = delegateSymbol.Locations;
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var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
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string message = "The delegate signature of the signal " +
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$"must return void: '{delegateSymbol.ToDisplayString()}'";
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string description = $"{message}. Return void or remove the '[Signal]' attribute.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0203",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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location,
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location?.SourceTree?.FilePath));
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}
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public static readonly DiagnosticDescriptor GenericTypeArgumentMustBeVariantRule =
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new DiagnosticDescriptor(id: "GD0301",
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title: "The generic type argument must be a Variant compatible type",
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messageFormat: "The generic type argument must be a Variant compatible type: {0}",
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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"The generic type argument must be a Variant compatible type. Use a Variant compatible type as the generic type argument.");
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public static void ReportGenericTypeArgumentMustBeVariant(
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SyntaxNodeAnalysisContext context,
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SyntaxNode typeArgumentSyntax,
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ISymbol typeArgumentSymbol)
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{
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string message = "The generic type argument " +
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$"must be a Variant compatible type: '{typeArgumentSymbol.ToDisplayString()}'";
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string description = $"{message}. Use a Variant compatible type as the generic type argument.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0301",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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typeArgumentSyntax.GetLocation(),
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typeArgumentSyntax.SyntaxTree.FilePath));
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}
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public static readonly DiagnosticDescriptor GenericTypeParameterMustBeVariantAnnotatedRule =
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new DiagnosticDescriptor(id: "GD0302",
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title: "The generic type parameter must be annotated with the MustBeVariant attribute",
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messageFormat: "The generic type argument must be a Variant type: {0}",
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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"The generic type argument must be a Variant type. Use a Variant type as the generic type argument.");
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public static void ReportGenericTypeParameterMustBeVariantAnnotated(
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SyntaxNodeAnalysisContext context,
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SyntaxNode typeArgumentSyntax,
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ISymbol typeArgumentSymbol)
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{
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string message = "The generic type parameter must be annotated with the MustBeVariant attribute";
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string description = $"{message}. Add the MustBeVariant attribute to the generic type parameter.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0302",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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typeArgumentSyntax.GetLocation(),
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typeArgumentSyntax.SyntaxTree.FilePath));
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}
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public static readonly DiagnosticDescriptor TypeArgumentParentSymbolUnhandledRule =
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new DiagnosticDescriptor(id: "GD0303",
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title: "The generic type parameter must be annotated with the MustBeVariant attribute",
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messageFormat: "The generic type argument must be a Variant type: {0}",
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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"The generic type argument must be a Variant type. Use a Variant type as the generic type argument.");
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public static void ReportTypeArgumentParentSymbolUnhandled(
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SyntaxNodeAnalysisContext context,
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SyntaxNode typeArgumentSyntax,
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ISymbol parentSymbol)
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{
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string message = $"Symbol '{parentSymbol.ToDisplayString()}' parent of a type argument " +
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"that must be Variant compatible was not handled.";
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string description = $"{message}. Handle type arguments that are children of the unhandled symbol type.";
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context.ReportDiagnostic(Diagnostic.Create(
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new DiagnosticDescriptor(id: "GD0303",
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title: message,
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messageFormat: message,
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category: "Usage",
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DiagnosticSeverity.Error,
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isEnabledByDefault: true,
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description),
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typeArgumentSyntax.GetLocation(),
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typeArgumentSyntax.SyntaxTree.FilePath));
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}
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}
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}
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