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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import SwiftSyntax
@_spi(Experimental)
public protocol NominalTypeDeclSyntax: LookInMembersScopeSyntax, NamedDeclSyntax, WithGenericParametersScopeSyntax {
var genericParameterClause: GenericParameterClauseSyntax? { get }
var genericWhereClause: GenericWhereClauseSyntax? { get }
var inheritanceClause: InheritanceClauseSyntax? { get }
}
extension NominalTypeDeclSyntax {
@_spi(Experimental) public var lookupMembersPosition: AbsolutePosition {
name.positionAfterSkippingLeadingTrivia
}
/// Nominal type doesn't introduce any names by itself.
@_spi(Experimental) public var defaultIntroducedNames: [LookupName] {
[]
}
/// Function used by generic parameter clause
/// scope on return from it's lookup.
@_spi(Experimental) public func returningLookupFromGenericParameterScope(
_ identifier: Identifier?,
at lookUpPosition: AbsolutePosition,
with config: LookupConfig
) -> [LookupResult] {
if let inheritanceClause, inheritanceClause.range.contains(lookUpPosition) {
return lookupInParent(identifier, at: lookUpPosition, with: config)
} else if let genericParameterClause, genericParameterClause.range.contains(lookUpPosition) {
return lookupInParent(identifier, at: lookUpPosition, with: config)
} else if name.range.contains(lookUpPosition) || genericWhereClause?.range.contains(lookUpPosition) ?? false {
return lookupInParent(identifier, at: lookUpPosition, with: config)
} else {
return [.lookForMembers(in: Syntax(self))] + lookupInParent(identifier, at: lookUpPosition, with: config)
}
}
}
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