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/*
This source file is part of the Swift.org open source project
Copyright (c) 2021 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 Swift project authors
*/
extension Table {
/// A cell in a table.
public struct Cell: Markup, BasicInlineContainer {
public var _data: _MarkupData
init(_ raw: RawMarkup) throws {
guard case .tableCell = raw.data else {
throw RawMarkup.Error.concreteConversionError(from: raw, to: Table.Cell.self)
}
let absoluteRaw = AbsoluteRawMarkup(markup: raw, metadata: MarkupMetadata(id: .newRoot(), indexInParent: 0))
self.init(_MarkupData(absoluteRaw))
}
init(_ data: _MarkupData) {
self._data = data
}
}
}
// MARK: - Public API
public extension Table.Cell {
/// The number of columns this cell spans over.
///
/// A normal, non-spanning table cell has a `colspan` of 1. A value greater than one indicates
/// that this cell has expanded to cover up that number of columns. A value of zero means that
/// this cell is being covered up by a previous cell in the same row.
var colspan: UInt {
get {
guard case let .tableCell(colspan, _) = _data.raw.markup.data else {
fatalError("\(self) markup wrapped unexpected \(_data.raw)")
}
return colspan
}
set {
_data = _data.replacingSelf(.tableCell(parsedRange: nil, colspan: newValue, rowspan: rowspan, _data.raw.markup.copyChildren()))
}
}
/// The number of rows this cell spans over.
///
/// A normal, non-spanning table cell has a `rowspan` of 1. A value greater than one indicates
/// that this cell has expanded to cover up that number of rows. A value of zero means that
/// this cell is being covered up by another cell in a row above it.
var rowspan: UInt {
get {
guard case let .tableCell(_, rowspan) = _data.raw.markup.data else {
fatalError("\(self) markup wrapped unexpected \(_data.raw)")
}
return rowspan
}
set {
_data = _data.replacingSelf(.tableCell(parsedRange: nil, colspan: colspan, rowspan: newValue, _data.raw.markup.copyChildren()))
}
}
// MARK: BasicInlineContainer
init<Children>(_ children: Children) where Children : Sequence, Children.Element == InlineMarkup {
self.init(colspan: 1, rowspan: 1, children)
}
init<Children>(colspan: UInt, rowspan: UInt, _ children: Children) where Children : Sequence, Children.Element == InlineMarkup {
try! self.init(RawMarkup.tableCell(parsedRange: nil, colspan: colspan, rowspan: rowspan, children.map { $0.raw.markup }))
}
// MARK: Visitation
func accept<V>(_ visitor: inout V) -> V.Result where V : MarkupVisitor {
return visitor.visitTableCell(self)
}
}
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