private static ClassDeclarationSyntax InjectInConstructor(ClassDeclarationSyntax classNode, SimpleNameSyntax symbolName, SyntaxToken fieldName)
{
string paramName = ToVariableName(symbolName);
var oldConstructor = (ConstructorDeclarationSyntax)classNode.Members.FirstOrDefault(m => m.IsKind(SyntaxKind.ConstructorDeclaration));
var constructor = oldConstructor;
if (constructor == null)
{
constructor = SyntaxFactory.ConstructorDeclaration(classNode.Identifier)
.AddModifiers(SyntaxFactory.Token(SyntaxKind.PublicKeyword))
.NormalizeWhitespace();
}
constructor = constructor.AddParameterListParameters(
SyntaxFactory.Parameter(SyntaxFactory.Identifier(paramName))
.WithType(symbolName))
.AddBodyStatements(SyntaxFactory.ExpressionStatement(SyntaxFactory.AssignmentExpression(
SyntaxKind.SimpleAssignmentExpression,
SyntaxFactory.IdentifierName(fieldName),
SyntaxFactory.IdentifierName(paramName))));
if (oldConstructor != null)
{
classNode = classNode.ReplaceNode(oldConstructor, constructor);
}
else
{
classNode = classNode.AddSortedMembers(constructor);
}
return(classNode);
}
private static ClassDeclarationSyntax AddField(ClassDeclarationSyntax classNode, SimpleNameSyntax serviceType, SyntaxToken fieldIdentifier)
{
var field = SyntaxFactory.FieldDeclaration(
SyntaxFactory.VariableDeclaration(serviceType,
SyntaxFactory.SingletonSeparatedList(SyntaxFactory.VariableDeclarator(fieldIdentifier))))
.WithModifiers(SyntaxFactory.TokenList(
SyntaxFactory.Token(SyntaxKind.PrivateKeyword),
SyntaxFactory.Token(SyntaxKind.ReadOnlyKeyword)))
.WithLeadingTrivia(SyntaxFactory.ElasticEndOfLine("\r\n"));
return(classNode.AddSortedMembers(field));
}