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Improve C# signal analyzer errors

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Report the specific parameters that are not supported.
This commit is contained in:
Raul Santos 2022-08-13 06:21:27 +02:00
parent 8a1e598011
commit 3b201c2b04
No known key found for this signature in database
GPG key ID: B532473AE3A803E4
2 changed files with 52 additions and 7 deletions
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34
modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators/Common.cs
View file

@ -192,15 +192,15 @@ namespace Godot.SourceGenerators
location?.SourceTree?.FilePath));
}
public static void ReportSignalDelegateSignatureNotSupported(
public static void ReportSignalParameterTypeNotSupported(
GeneratorExecutionContext context,
INamedTypeSymbol delegateSymbol)
IParameterSymbol parameterSymbol)
{
var locations = delegateSymbol.Locations;
var locations = parameterSymbol.Locations;
var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
string message = "The delegate signature of the signal " +
$"is not supported: '{delegateSymbol.ToDisplayString()}'";
string message = "The parameter of the delegate signature of the signal " +
$"is not supported: '{parameterSymbol.ToDisplayString()}'";
string description = $"{message}. Use supported types only or remove the '[Signal]' attribute.";
@ -215,5 +215,29 @@ namespace Godot.SourceGenerators
location,
location?.SourceTree?.FilePath));
}
public static void ReportSignalDelegateSignatureMustReturnVoid(
GeneratorExecutionContext context,
INamedTypeSymbol delegateSymbol)
{
var locations = delegateSymbol.Locations;
var location = locations.FirstOrDefault(l => l.SourceTree != null) ?? locations.FirstOrDefault();
string message = "The delegate signature of the signal " +
$"must return void: '{delegateSymbol.ToDisplayString()}'";
string description = $"{message}. Return void or remove the '[Signal]' attribute.";
context.ReportDiagnostic(Diagnostic.Create(
new DiagnosticDescriptor(id: "GODOT-G0203",
title: message,
messageFormat: message,
category: "Usage",
DiagnosticSeverity.Error,
isEnabledByDefault: true,
description),
location,
location?.SourceTree?.FilePath));
}
}
}

25
modules/mono/editor/Godot.NET.Sdk/Godot.SourceGenerators/ScriptSignalsGenerator.cs
View file

@ -148,8 +148,29 @@ namespace Godot.SourceGenerators
if (invokeMethodData == null)
{
// TODO: Better error for incompatible signature. We should indicate incompatible argument types, as we do with exported properties.
Common.ReportSignalDelegateSignatureNotSupported(context, signalDelegateSymbol);
if (signalDelegateSymbol.DelegateInvokeMethod is IMethodSymbol methodSymbol)
{
foreach (var parameter in methodSymbol.Parameters)
{
if (parameter.RefKind != RefKind.None)
{
Common.ReportSignalParameterTypeNotSupported(context, parameter);
continue;
}
var marshalType = MarshalUtils.ConvertManagedTypeToMarshalType(parameter.Type, typeCache);
if (marshalType == null)
{
Common.ReportSignalParameterTypeNotSupported(context, parameter);
}
}
if (!methodSymbol.ReturnsVoid)
{
Common.ReportSignalDelegateSignatureMustReturnVoid(context, signalDelegateSymbol);
}
}
continue;
}