private static FunctionDeclaration CreateWithQualifierFunction(IIdentifier namespaceName, int pos, ISourceFile sourceFile)
{
// Observe the body is null, this is a 'declare' function
var withQualifier = CreateInjectedNode <FunctionDeclaration>(SyntaxKind.FunctionDeclaration, pos, sourceFile);
withQualifier.Name = CreateIdentifier(Names.WithQualifierFunction, pos, sourceFile);
withQualifier.Flags |= NodeFlags.Ambient | NodeFlags.Export | NodeFlags.ScriptPublic;
withQualifier.Modifiers = ModifiersArray.Create(withQualifier.Flags);
withQualifier.Modifiers.Add(CreateInjectedNode <Modifier>(SyntaxKind.ExportKeyword, pos, sourceFile));
withQualifier.Modifiers.Add(CreateInjectedNode <Modifier>(SyntaxKind.DeclareKeyword, pos, sourceFile));
withQualifier.Parameters = CreateWithQualifierParameters(pos, sourceFile);
withQualifier.Type = CreateTypeOfExpression(namespaceName.Text, pos, sourceFile);
withQualifier.Decorators = new NodeArray <IDecorator>(CreatePublicDecorator(pos, sourceFile));
return(withQualifier);
}
/// <summary>
/// Injects a default qualifier declaration as a top level statement
/// </summary>
/// <remarks>
/// The created function has the following shape:
///
/// export declare const qualifier : {};
///
/// The identifier count and node count that the parser mantains is not updated! But nobody is consuming that information so far.
/// The declaration is created at position 0. This should not be visible to the user though.
/// </remarks>
public static void AddDefaultQualifierDeclaration(this ISourceFile sourceFile)
{
var variableStatement = CreateInjectedNode <VariableStatement>(SyntaxKind.VariableStatement, 0, sourceFile);
// Flags and modifiers for the statement are set to 'export declare'
variableStatement.Flags |= NodeFlags.Ambient | NodeFlags.Export;
variableStatement.Modifiers = ModifiersArray.Create(variableStatement.Flags);
variableStatement.Modifiers.Add(CreateInjectedNode <Modifier>(SyntaxKind.ExportKeyword, 0, sourceFile));
variableStatement.Modifiers.Add(CreateInjectedNode <Modifier>(SyntaxKind.DeclareKeyword, 0, sourceFile));
variableStatement.DeclarationList = CreateQualifierDeclaration(0, sourceFile);
sourceFile.Statements.Insert(0, variableStatement);
sourceFile.DeclaresRootQualifier = true;
}