399 lines
17 KiB
C#
399 lines
17 KiB
C#
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using Microsoft.CodeAnalysis;
|
|
using Microsoft.CodeAnalysis.CSharp;
|
|
using Microsoft.CodeAnalysis.CSharp.Syntax;
|
|
using Microsoft.CodeAnalysis.Text;
|
|
|
|
namespace Godot.SourceGenerators
|
|
{
|
|
[Generator]
|
|
public class ScriptPropertyDefValGenerator : ISourceGenerator
|
|
{
|
|
public void Initialize(GeneratorInitializationContext context)
|
|
{
|
|
}
|
|
|
|
public void Execute(GeneratorExecutionContext context)
|
|
{
|
|
if (context.IsGodotSourceGeneratorDisabled("ScriptPropertyDefVal"))
|
|
return;
|
|
|
|
INamedTypeSymbol[] godotClasses = context
|
|
.Compilation.SyntaxTrees
|
|
.SelectMany(tree =>
|
|
tree.GetRoot().DescendantNodes()
|
|
.OfType<ClassDeclarationSyntax>()
|
|
.SelectGodotScriptClasses(context.Compilation)
|
|
// Report and skip non-partial classes
|
|
.Where(x =>
|
|
{
|
|
if (x.cds.IsPartial())
|
|
{
|
|
if (x.cds.IsNested() && !x.cds.AreAllOuterTypesPartial(out var typeMissingPartial))
|
|
{
|
|
Common.ReportNonPartialGodotScriptOuterClass(context, typeMissingPartial!);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
Common.ReportNonPartialGodotScriptClass(context, x.cds, x.symbol);
|
|
return false;
|
|
})
|
|
.Select(x => x.symbol)
|
|
)
|
|
.Distinct<INamedTypeSymbol>(SymbolEqualityComparer.Default)
|
|
.ToArray();
|
|
|
|
if (godotClasses.Length > 0)
|
|
{
|
|
var typeCache = new MarshalUtils.TypeCache(context.Compilation);
|
|
|
|
foreach (var godotClass in godotClasses)
|
|
{
|
|
VisitGodotScriptClass(context, typeCache, godotClass);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void VisitGodotScriptClass(
|
|
GeneratorExecutionContext context,
|
|
MarshalUtils.TypeCache typeCache,
|
|
INamedTypeSymbol symbol
|
|
)
|
|
{
|
|
INamespaceSymbol namespaceSymbol = symbol.ContainingNamespace;
|
|
string classNs = namespaceSymbol != null && !namespaceSymbol.IsGlobalNamespace ?
|
|
namespaceSymbol.FullQualifiedNameOmitGlobal() :
|
|
string.Empty;
|
|
bool hasNamespace = classNs.Length != 0;
|
|
|
|
bool isInnerClass = symbol.ContainingType != null;
|
|
|
|
string uniqueHint = symbol.FullQualifiedNameOmitGlobal().SanitizeQualifiedNameForUniqueHint()
|
|
+ "_ScriptPropertyDefVal.generated";
|
|
|
|
var source = new StringBuilder();
|
|
|
|
if (hasNamespace)
|
|
{
|
|
source.Append("namespace ");
|
|
source.Append(classNs);
|
|
source.Append(" {\n\n");
|
|
}
|
|
|
|
if (isInnerClass)
|
|
{
|
|
var containingType = symbol.ContainingType;
|
|
AppendPartialContainingTypeDeclarations(containingType);
|
|
|
|
void AppendPartialContainingTypeDeclarations(INamedTypeSymbol? containingType)
|
|
{
|
|
if (containingType == null)
|
|
return;
|
|
|
|
AppendPartialContainingTypeDeclarations(containingType.ContainingType);
|
|
|
|
source.Append("partial ");
|
|
source.Append(containingType.GetDeclarationKeyword());
|
|
source.Append(" ");
|
|
source.Append(containingType.NameWithTypeParameters());
|
|
source.Append("\n{\n");
|
|
}
|
|
}
|
|
|
|
source.Append("partial class ");
|
|
source.Append(symbol.NameWithTypeParameters());
|
|
source.Append("\n{\n");
|
|
|
|
var exportedMembers = new List<ExportedPropertyMetadata>();
|
|
|
|
var members = symbol.GetMembers();
|
|
|
|
var exportedProperties = members
|
|
.Where(s => !s.IsStatic && s.Kind == SymbolKind.Property)
|
|
.Cast<IPropertySymbol>()
|
|
.Where(s => s.GetAttributes()
|
|
.Any(a => a.AttributeClass?.IsGodotExportAttribute() ?? false))
|
|
.ToArray();
|
|
|
|
var exportedFields = members
|
|
.Where(s => !s.IsStatic && s.Kind == SymbolKind.Field && !s.IsImplicitlyDeclared)
|
|
.Cast<IFieldSymbol>()
|
|
.Where(s => s.GetAttributes()
|
|
.Any(a => a.AttributeClass?.IsGodotExportAttribute() ?? false))
|
|
.ToArray();
|
|
|
|
foreach (var property in exportedProperties)
|
|
{
|
|
if (property.IsStatic)
|
|
{
|
|
Common.ReportExportedMemberIsStatic(context, property);
|
|
continue;
|
|
}
|
|
|
|
if (property.IsIndexer)
|
|
{
|
|
Common.ReportExportedMemberIsIndexer(context, property);
|
|
continue;
|
|
}
|
|
|
|
// TODO: We should still restore read-only properties after reloading assembly. Two possible ways: reflection or turn RestoreGodotObjectData into a constructor overload.
|
|
// Ignore properties without a getter, without a setter or with an init-only setter. Godot properties must be both readable and writable.
|
|
if (property.IsWriteOnly)
|
|
{
|
|
Common.ReportExportedMemberIsWriteOnly(context, property);
|
|
continue;
|
|
}
|
|
|
|
if (property.IsReadOnly || property.SetMethod!.IsInitOnly)
|
|
{
|
|
Common.ReportExportedMemberIsReadOnly(context, property);
|
|
continue;
|
|
}
|
|
|
|
if (property.ExplicitInterfaceImplementations.Length > 0)
|
|
{
|
|
Common.ReportExportedMemberIsExplicitInterfaceImplementation(context, property);
|
|
continue;
|
|
}
|
|
|
|
var propertyType = property.Type;
|
|
var marshalType = MarshalUtils.ConvertManagedTypeToMarshalType(propertyType, typeCache);
|
|
|
|
if (marshalType == null)
|
|
{
|
|
Common.ReportExportedMemberTypeNotSupported(context, property);
|
|
continue;
|
|
}
|
|
|
|
if (marshalType == MarshalType.GodotObjectOrDerived)
|
|
{
|
|
if (!symbol.InheritsFrom("GodotSharp", "Godot.Node") &&
|
|
propertyType.InheritsFrom("GodotSharp", "Godot.Node"))
|
|
{
|
|
Common.ReportOnlyNodesShouldExportNodes(context, property);
|
|
}
|
|
}
|
|
|
|
var propertyDeclarationSyntax = property.DeclaringSyntaxReferences
|
|
.Select(r => r.GetSyntax() as PropertyDeclarationSyntax).FirstOrDefault();
|
|
|
|
// Fully qualify the value to avoid issues with namespaces.
|
|
string? value = null;
|
|
if (propertyDeclarationSyntax != null)
|
|
{
|
|
if (propertyDeclarationSyntax.Initializer != null)
|
|
{
|
|
var sm = context.Compilation.GetSemanticModel(propertyDeclarationSyntax.Initializer.SyntaxTree);
|
|
value = propertyDeclarationSyntax.Initializer.Value.FullQualifiedSyntax(sm);
|
|
}
|
|
else
|
|
{
|
|
var propertyGet = propertyDeclarationSyntax.AccessorList?.Accessors
|
|
.Where(a => a.Keyword.IsKind(SyntaxKind.GetKeyword)).FirstOrDefault();
|
|
if (propertyGet != null)
|
|
{
|
|
if (propertyGet.ExpressionBody != null)
|
|
{
|
|
if (propertyGet.ExpressionBody.Expression is IdentifierNameSyntax identifierNameSyntax)
|
|
{
|
|
var sm = context.Compilation.GetSemanticModel(identifierNameSyntax.SyntaxTree);
|
|
var fieldSymbol = sm.GetSymbolInfo(identifierNameSyntax).Symbol as IFieldSymbol;
|
|
EqualsValueClauseSyntax? initializer = fieldSymbol?.DeclaringSyntaxReferences
|
|
.Select(r => r.GetSyntax())
|
|
.OfType<VariableDeclaratorSyntax>()
|
|
.Select(s => s.Initializer)
|
|
.FirstOrDefault(i => i != null);
|
|
|
|
if (initializer != null)
|
|
{
|
|
sm = context.Compilation.GetSemanticModel(initializer.SyntaxTree);
|
|
value = initializer.Value.FullQualifiedSyntax(sm);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var returns = propertyGet.DescendantNodes().OfType<ReturnStatementSyntax>();
|
|
if (returns.Count() == 1)
|
|
{
|
|
// Generate only single return
|
|
var returnStatementSyntax = returns.Single();
|
|
if (returnStatementSyntax.Expression is IdentifierNameSyntax identifierNameSyntax)
|
|
{
|
|
var sm = context.Compilation.GetSemanticModel(identifierNameSyntax.SyntaxTree);
|
|
var fieldSymbol = sm.GetSymbolInfo(identifierNameSyntax).Symbol as IFieldSymbol;
|
|
EqualsValueClauseSyntax? initializer = fieldSymbol?.DeclaringSyntaxReferences
|
|
.Select(r => r.GetSyntax())
|
|
.OfType<VariableDeclaratorSyntax>()
|
|
.Select(s => s.Initializer)
|
|
.FirstOrDefault(i => i != null);
|
|
|
|
if (initializer != null)
|
|
{
|
|
sm = context.Compilation.GetSemanticModel(initializer.SyntaxTree);
|
|
value = initializer.Value.FullQualifiedSyntax(sm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
exportedMembers.Add(new ExportedPropertyMetadata(
|
|
property.Name, marshalType.Value, propertyType, value));
|
|
}
|
|
|
|
foreach (var field in exportedFields)
|
|
{
|
|
if (field.IsStatic)
|
|
{
|
|
Common.ReportExportedMemberIsStatic(context, field);
|
|
continue;
|
|
}
|
|
|
|
// TODO: We should still restore read-only fields after reloading assembly. Two possible ways: reflection or turn RestoreGodotObjectData into a constructor overload.
|
|
// Ignore properties without a getter or without a setter. Godot properties must be both readable and writable.
|
|
if (field.IsReadOnly)
|
|
{
|
|
Common.ReportExportedMemberIsReadOnly(context, field);
|
|
continue;
|
|
}
|
|
|
|
var fieldType = field.Type;
|
|
var marshalType = MarshalUtils.ConvertManagedTypeToMarshalType(fieldType, typeCache);
|
|
|
|
if (marshalType == null)
|
|
{
|
|
Common.ReportExportedMemberTypeNotSupported(context, field);
|
|
continue;
|
|
}
|
|
|
|
if (marshalType == MarshalType.GodotObjectOrDerived)
|
|
{
|
|
if (!symbol.InheritsFrom("GodotSharp", "Godot.Node") &&
|
|
fieldType.InheritsFrom("GodotSharp", "Godot.Node"))
|
|
{
|
|
Common.ReportOnlyNodesShouldExportNodes(context, field);
|
|
}
|
|
}
|
|
|
|
EqualsValueClauseSyntax? initializer = field.DeclaringSyntaxReferences
|
|
.Select(r => r.GetSyntax())
|
|
.OfType<VariableDeclaratorSyntax>()
|
|
.Select(s => s.Initializer)
|
|
.FirstOrDefault(i => i != null);
|
|
|
|
// This needs to be fully qualified to avoid issues with namespaces.
|
|
string? value = null;
|
|
if (initializer != null)
|
|
{
|
|
var sm = context.Compilation.GetSemanticModel(initializer.SyntaxTree);
|
|
value = initializer.Value.FullQualifiedSyntax(sm);
|
|
}
|
|
|
|
exportedMembers.Add(new ExportedPropertyMetadata(
|
|
field.Name, marshalType.Value, fieldType, value));
|
|
}
|
|
|
|
// Generate GetGodotExportedProperties
|
|
|
|
if (exportedMembers.Count > 0)
|
|
{
|
|
source.Append("#pragma warning disable CS0109 // Disable warning about redundant 'new' keyword\n");
|
|
|
|
const string dictionaryType =
|
|
"global::System.Collections.Generic.Dictionary<global::Godot.StringName, global::Godot.Variant>";
|
|
|
|
source.Append("#if TOOLS\n");
|
|
|
|
source.Append(" /// <summary>\n")
|
|
.Append(" /// Get the default values for all properties declared in this class.\n")
|
|
.Append(" /// This method is used by Godot to determine the value that will be\n")
|
|
.Append(" /// used by the inspector when resetting properties.\n")
|
|
.Append(" /// Do not call this method.\n")
|
|
.Append(" /// </summary>\n");
|
|
|
|
source.Append(" [global::System.ComponentModel.EditorBrowsable(global::System.ComponentModel.EditorBrowsableState.Never)]\n");
|
|
|
|
source.Append(" internal new static ");
|
|
source.Append(dictionaryType);
|
|
source.Append(" GetGodotPropertyDefaultValues()\n {\n");
|
|
|
|
source.Append(" var values = new ");
|
|
source.Append(dictionaryType);
|
|
source.Append("(");
|
|
source.Append(exportedMembers.Count);
|
|
source.Append(");\n");
|
|
|
|
foreach (var exportedMember in exportedMembers)
|
|
{
|
|
string defaultValueLocalName = string.Concat("__", exportedMember.Name, "_default_value");
|
|
|
|
source.Append(" ");
|
|
source.Append(exportedMember.TypeSymbol.FullQualifiedNameIncludeGlobal());
|
|
source.Append(" ");
|
|
source.Append(defaultValueLocalName);
|
|
source.Append(" = ");
|
|
source.Append(exportedMember.Value ?? "default");
|
|
source.Append(";\n");
|
|
source.Append(" values.Add(PropertyName.");
|
|
source.Append(exportedMember.Name);
|
|
source.Append(", ");
|
|
source.AppendManagedToVariantExpr(defaultValueLocalName,
|
|
exportedMember.TypeSymbol, exportedMember.Type);
|
|
source.Append(");\n");
|
|
}
|
|
|
|
source.Append(" return values;\n");
|
|
source.Append(" }\n");
|
|
|
|
source.Append("#endif // TOOLS\n");
|
|
|
|
source.Append("#pragma warning restore CS0109\n");
|
|
}
|
|
|
|
source.Append("}\n"); // partial class
|
|
|
|
if (isInnerClass)
|
|
{
|
|
var containingType = symbol.ContainingType;
|
|
|
|
while (containingType != null)
|
|
{
|
|
source.Append("}\n"); // outer class
|
|
|
|
containingType = containingType.ContainingType;
|
|
}
|
|
}
|
|
|
|
if (hasNamespace)
|
|
{
|
|
source.Append("\n}\n");
|
|
}
|
|
|
|
context.AddSource(uniqueHint, SourceText.From(source.ToString(), Encoding.UTF8));
|
|
}
|
|
|
|
private struct ExportedPropertyMetadata
|
|
{
|
|
public ExportedPropertyMetadata(string name, MarshalType type, ITypeSymbol typeSymbol, string? value)
|
|
{
|
|
Name = name;
|
|
Type = type;
|
|
TypeSymbol = typeSymbol;
|
|
Value = value;
|
|
}
|
|
|
|
public string Name { get; }
|
|
public MarshalType Type { get; }
|
|
public ITypeSymbol TypeSymbol { get; }
|
|
public string? Value { get; }
|
|
}
|
|
}
|
|
}
|