private Maps Validate(MapReceiver receiver, Compilation compilation)
{
var maps = ImmutableDictionary.CreateBuilder <(ITypeSymbol, ITypeSymbol), (ImmutableArray <Diagnostic>, SyntaxNode, ImmutableArray <string>)>();
MappingInformation.ValidateMapTo(receiver.MapToCandidates, maps, compilation);
MappingInformation.ValidateMapFrom(receiver.MapFromCandidates, maps, compilation);
MappingInformation.ValidateMap(receiver.MapCandidates, maps, compilation);
return(maps.ToImmutable());
}
private Maps Validate(MapReceiver receiver, Compilation compilation)
{
var maps = ImmutableDictionary.CreateBuilder <(ITypeSymbol, ITypeSymbol), (ImmutableArray <Diagnostic>, SyntaxNode, ImmutableArray <string>)>();
foreach (var target in receiver.Targets)
{
MappingInformation.ValidatePairs(target.origination, target.source, target.destination, maps);
}
return(maps.ToImmutable());
}
private static (ImmutableArray <Diagnostic> diagnostics, string?name, SourceText?text) GenerateMapping(
ITypeSymbol sourceType, AttributeData attributeData, ConfigurationValues configurationValues)
{
var information = new MappingInformation(sourceType, attributeData);
if (!information.Diagnostics.Any(_ => _.Severity == DiagnosticSeverity.Error))
{
var text = new MappingBuilder(information, configurationValues).Text;
return(information.Diagnostics, $"{sourceType.Name}_To_{information.DestinationType.Name}_Map.g.cs", text);
}
return(information.Diagnostics, null, null);
}
private static void ValidateMap(List <AttributeSyntax> mapCandidates, Maps.Builder maps, Compilation compilation)
{
var mapAttributeSymbol = compilation.GetTypeByMetadataName(typeof(MapAttribute).FullName);
foreach (var candidateAttributeNode in mapCandidates)
{
var attributeSymbol = compilation.GetSemanticModel(candidateAttributeNode.SyntaxTree)
.GetSymbolInfo(candidateAttributeNode).Symbol !.ContainingSymbol;
if (attributeSymbol.Equals(mapAttributeSymbol, SymbolEqualityComparer.Default))
{
var attributeData = compilation.Assembly.GetAttributes().Single(
_ => _.ApplicationSyntaxReference !.GetSyntax() == candidateAttributeNode);
var sourceType = (INamedTypeSymbol)attributeData.ConstructorArguments[0].Value !;
var destinationType = (INamedTypeSymbol)attributeData.ConstructorArguments[1].Value !;
MappingInformation.ValidatePairs(candidateAttributeNode, sourceType, destinationType, maps);
}
}
}
private static ImmutableArray <(ImmutableArray <Diagnostic> diagnostics, string?name, SourceText?text)> GenerateMappings(
MapReceiver receiver, Compilation compilation, AnalyzerConfigOptionsProvider optionsProvider)
{
var results = ImmutableArray.CreateBuilder <(ImmutableArray <Diagnostic> diagnostics, string?name, SourceText?text)>();
var information = new MappingInformation(receiver, compilation);
foreach (var mapPair in information.Maps)
{
if (!mapPair.Value.diagnostics.Any(_ => _.Severity == DiagnosticSeverity.Error))
{
var text = new MappingBuilder(mapPair.Key.source, mapPair.Key.destination, mapPair.Value.maps,
new ConfigurationValues(optionsProvider, mapPair.Value.node.SyntaxTree)).Text;
results.Add((mapPair.Value.diagnostics, $"{mapPair.Key.source.Name}_To_{mapPair.Key.destination.Name}_Map.g.cs", text));
}
else
{
results.Add((mapPair.Value.diagnostics, null, null));
}
}
return(results.ToImmutable());
}
private static SourceText Build(MappingInformation information, ConfigurationValues configurationValues)
{
using var writer = new StringWriter();
using var indentWriter = new IndentedTextWriter(writer,
configurationValues.IndentStyle == IndentStyle.Tab ? "\t" : new string (' ', (int)configurationValues.IndentSize));
var usingStatements = new SortedSet <string>();
if (!information.SourceType.IsValueType)
{
usingStatements.Add("using System;");
}
;
if (!information.DestinationType.ContainingNamespace.IsGlobalNamespace &&
!information.SourceType.ContainingNamespace.ToDisplayString().StartsWith(
information.DestinationType.ContainingNamespace.ToDisplayString(), StringComparison.InvariantCulture))
{
usingStatements.Add($"using {information.DestinationType.ContainingNamespace.ToDisplayString()};");
}
foreach (var usingStatement in usingStatements)
{
indentWriter.WriteLine(usingStatement);
}
if (usingStatements.Count > 0)
{
indentWriter.WriteLine();
}
if (!information.SourceType.ContainingNamespace.IsGlobalNamespace)
{
indentWriter.WriteLine($"namespace {information.SourceType.ContainingNamespace.ToDisplayString()}");
indentWriter.WriteLine("{");
indentWriter.Indent++;
}
indentWriter.WriteLine($"public static partial class {information.SourceType.Name}MapToExtensions");
indentWriter.WriteLine("{");
indentWriter.Indent++;
indentWriter.WriteLine($"public static {information.DestinationType.Name} MapTo{information.DestinationType.Name}(this {information.SourceType.Name} self) =>");
indentWriter.Indent++;
if (!information.SourceType.IsValueType)
{
indentWriter.WriteLine("self is null ? throw new ArgumentNullException(nameof(self)) :");
indentWriter.Indent++;
}
indentWriter.WriteLine($"new {information.DestinationType.Name}");
indentWriter.WriteLine("{");
indentWriter.Indent++;
foreach (var map in information.Maps)
{
indentWriter.WriteLine(map);
}
indentWriter.Indent--;
indentWriter.WriteLine("};");
if (!information.SourceType.IsValueType)
{
indentWriter.Indent--;
}
indentWriter.Indent--;
indentWriter.Indent--;
indentWriter.WriteLine("}");
if (!information.SourceType.ContainingNamespace.IsGlobalNamespace)
{
indentWriter.Indent--;
indentWriter.WriteLine("}");
}
return(SourceText.From(writer.ToString(), Encoding.UTF8));
}
public MappingBuilder(MappingInformation information, ConfigurationValues configurationValues) => this.Text = MappingBuilder.Build(information, configurationValues);