public ReactAssembly AnalyzeAndConstructAssemblyModel()
{
Contract.Assert(m_compilation != null, "Expected to have a compilation. Must call CompileAndCheckForErrors first");
var assembly = new ReactAssembly();
var proceseedTypes = new HashSet <ITypeSymbol>();
foreach (var type in GetAllTypes())
{
if (TryExtractModule(type, out var module))
{
assembly.Modules.Add(module);
}
if (IsViewManager(type))
{
assembly.ViewManagers.Add(type);
}
// Proactively register serializable types.
switch (type.TypeKind)
{
case TypeKind.Enum:
assembly.SerializableTypes.Add(type, type.TypeKind);
break;
}
// Register extension methods
if (type.MightContainExtensionMethods)
{
foreach (var member in type.GetMembers())
{
if (member is IMethodSymbol method)
{
if (method.IsExtensionMethod &&
method.Parameters.Length == 2 &&
!(method.Parameters[1].Type is ITypeParameterSymbol))
{
if (method.Parameters[0].Type.Equals(ReactTypes.JSValueReader, SymbolEqualityComparer.Default) &&
method.Parameters[1].RefKind == RefKind.Out)
{
assembly.JSReaderFunctions.Add(method.Parameters[1].Type, method);
}
else if (method.Parameters[0].Type.Equals(ReactTypes.JSValueWriter, SymbolEqualityComparer.Default))
{
assembly.JSWriterFunctions.Add(method.Parameters[1].Type, method);
}
}
}
}
}
}
foreach (var module in assembly.Modules)
{
foreach (var method in module.Methods)
{
AddSerializableMethod(method.Method);
}
foreach (var constant in module.Constants)
{
if (constant.Symbol is IFieldSymbol field)
{
AddSerializableType(field.Type);
}
else if (constant.Symbol is IPropertySymbol property)
{
AddSerializableType(property.Type);
}
}
foreach (var callback in module.Events.Union <ReactCallback>(module.Functions))
{
foreach (var param in callback.CallbackParameters)
{
AddSerializableType(param.Type);
}
}
}
void AddSerializableMethod(IMethodSymbol method)
{
AddSerializableType(method.ReturnType);
foreach (var param in method.Parameters)
{
AddSerializableType(param.Type);
}
}
void AddSerializableType(ITypeSymbol type)
{
if (proceseedTypes.Contains(type))
{
return;
}
proceseedTypes.Add(type);
if (type is INamedTypeSymbol namedType)
{
if (type.TypeKind == TypeKind.Delegate)
{
Contract.Assert(namedType.DelegateInvokeMethod != null);
AddSerializableMethod(namedType.DelegateInvokeMethod);
}
else if (type.ContainingAssembly.Equals(m_compilation.Assembly, SymbolEqualityComparer.Default))
{
if (namedType.TypeKind == TypeKind.Class)
{
// Check that classes have a default constructor.
if (!namedType
.GetMembers()
.Any(member =>
member is IMethodSymbol method &&
method.MethodKind == MethodKind.Constructor &&
method.Parameters.Length == 0))
{
}
}
assembly.SerializableTypes.Add(namedType, namedType.TypeKind);
}
}
}
return(assembly);
}
public CSharpSyntaxNode Generate(ReactAssembly assembly)
{
var registrationInvocations = new List <StatementSyntax>();
var providerMembers = new List <MemberDeclarationSyntax>();
if (assembly.ViewManagers.Any())
{
registrationInvocations.Add(InvocationStatement(ReactNativeNames.CreateViewManagers, IdentifierName(ReactNativeNames.PackageBuilderId)));
providerMembers.Add(CreateViewManagers(assembly.ViewManagers));
}
if (assembly.Modules.Any())
{
registrationInvocations.Add(InvocationStatement(ReactNativeNames.CreateModules, IdentifierName((ReactNativeNames.PackageBuilderId))));
providerMembers.Add(CreateModules(assembly.Modules));
}
if (assembly.SerializableTypes.Any())
{
registrationInvocations.Add(InvocationStatement(ReactNativeNames.CreateSerializers));
providerMembers.AddRange(CreateSerializers(assembly.SerializableTypes.Keys));
}
if (assembly.JSReaderFunctions.Any())
{
registrationInvocations.Add(InvocationStatement(ReactNativeNames.RegisterExtensionReaders));
providerMembers.Add(RegisterExtensionReaders(assembly.JSReaderFunctions));
}
if (assembly.JSWriterFunctions.Any())
{
registrationInvocations.Add(InvocationStatement(ReactNativeNames.RegisterExtensionWriter));
providerMembers.Add(RegisterExtensionWriter(assembly.JSWriterFunctions));
}
// Generates:
// public void CreatePackage(IPackageBuilder packageBuilder)
// {
// ... registrationInvocations
// }
var createPackageMethod = MethodDeclaration(
PredefinedType(Token(SyntaxKind.VoidKeyword)),
ReactNativeNames.CreatePackage)
.AddModifiers(
Token(SyntaxKind.PublicKeyword))
.AddParameterListParameters(
GetPackageBuilderArgument())
.WithBody(
Block(
registrationInvocations
));
// Ensure the main package registration implementation is at the top of the file.
providerMembers.Insert(0, createPackageMethod);
// Generates:
// namespace "MyNS"
// {
// public sealed partial ReactPackageProvider : IReactPackageProvider
// {
// ... providerMembers
// }
// }
var ns =
NamespaceDeclaration(ParseName(m_rootNamespace))
.AddMembers(
ClassDeclaration("ReactPackageProvider")
.AddModifiers(
Token(SyntaxKind.PublicKeyword),
Token(SyntaxKind.SealedKeyword),
Token(SyntaxKind.PartialKeyword))
.AddBaseListTypes(
SimpleBaseType(
m_reactTypes.IReactPackageProvider.ToTypeSyntax()))
.WithMembers(
new SyntaxList <MemberDeclarationSyntax>(providerMembers))
);
return(ns);
}
