SyntaxChildren
Collection that contains the present child Syntax
nodes of the given node.
struct SyntaxChildren
Collection that contains the present child Syntax
nodes of the given node.
struct SyntaxChildren
import SwiftSyntax
A library for working with Swift code.
struct Syntax
A Syntax node represents a tree of nodes with tokens at the leaves. Each node has accessors for its known children, and allows efficient iteration over the children through its children
property.
struct SyntaxChildrenIndex
An index in a syntax children collection.
struct AccessorDeclListSyntax
struct ArrayElementListSyntax
struct ArrayElementSyntax
An element inside an array literal.
struct AttributeListSyntax
A list of attributes that can be attached to a declaration.
struct AttributeSyntax
An @
attribute.
struct AvailabilityArgumentListSyntax
struct AvailabilityArgumentSyntax
A single argument to an @available
argument like *
, iOS 10.1
, or message: "This has been deprecated"
.
struct CatchClauseListSyntax
struct CatchClauseSyntax
struct CatchItemListSyntax
struct CatchItemSyntax
struct ClosureCaptureListSyntax
struct ClosureCaptureSyntax
struct ClosureParameterListSyntax
struct ClosureParameterSyntax
struct ClosureShorthandParameterListSyntax
A list of closure parameters that are not parenthesized and don’t have type annotations.
struct ClosureShorthandParameterSyntax
struct CodeBlockItemListSyntax
struct CodeBlockItemSyntax
A CodeBlockItem is any Syntax node that appears on its own line inside a CodeBlock.
struct CompositionTypeElementListSyntax
struct CompositionTypeElementSyntax
struct ConditionElementListSyntax
struct ConditionElementSyntax
struct DeclModifierListSyntax
struct DeclModifierSyntax
struct DeclNameArgumentListSyntax
struct DeclNameArgumentSyntax
struct DesignatedTypeListSyntax
struct DesignatedTypeSyntax
struct DictionaryElementListSyntax
struct DictionaryElementSyntax
An element inside a dictionary literal.
struct DifferentiabilityArgumentListSyntax
struct DifferentiabilityArgumentSyntax
A differentiability argument: either the “self” identifier, a function parameter name, or a function parameter index.
struct DocumentationAttributeArgumentListSyntax
The arguments of the ‘@_documentation’ attribute
struct DocumentationAttributeArgumentSyntax
struct EffectsAttributeArgumentListSyntax
The arguments of the ‘@_effects’ attribute. These will be parsed during the SIL stage.
struct EnumCaseElementListSyntax
A collection of 0 or more EnumCaseElementSyntax
s.
struct EnumCaseElementSyntax
An element of an enum case, containing the name of the case and, optionally, either associated values or an assignment to a raw value.
struct EnumCaseParameterListSyntax
struct EnumCaseParameterSyntax
struct ExprListSyntax
A list of expressions connected by operators. This list is contained by a SequenceExprSyntax
.
struct FunctionParameterListSyntax
A list of function parameters that are type annotated and a label. The function parameters are represented by FunctionParameterListSyntax
.
struct FunctionParameterSyntax
A function parameter
struct GenericArgumentListSyntax
struct GenericArgumentSyntax
struct GenericParameterListSyntax
struct GenericParameterSyntax
struct GenericRequirementListSyntax
struct GenericRequirementSyntax
struct IfConfigClauseListSyntax
struct IfConfigClauseSyntax
struct ImportPathComponentListSyntax
struct ImportPathComponentSyntax
struct InheritedTypeListSyntax
struct InheritedTypeSyntax
struct KeyPathComponentListSyntax
The components of a key path
struct KeyPathComponentSyntax
A single key path component
struct LabeledExprListSyntax
struct LabeledExprSyntax
An expression that is prefixed by a label.
struct MemberBlockItemListSyntax
struct MemberBlockItemSyntax
A member declaration of a type consisting of a declaration and an optional semicolon;
struct MultipleTrailingClosureElementListSyntax
struct MultipleTrailingClosureElementSyntax
struct ObjCSelectorPieceListSyntax
struct ObjCSelectorPieceSyntax
A piece of an Objective-C selector. Either consisting of just an identifier for a nullary selector, an identifier and a colon for a labeled argument or just a colon for an unlabeled argument
struct PatternBindingListSyntax
struct PatternBindingSyntax
Defines variables inside a variable declaration.
struct PlatformVersionItemListSyntax
struct PlatformVersionItemSyntax
A single platform/version pair in an attribute, e.g. iOS 10.1
.
struct PrecedenceGroupAttributeListSyntax
struct PrecedenceGroupRelationSyntax
Specify the new precedence group’s relation to existing precedence groups.
struct PrecedenceGroupAssignmentSyntax
Specifies the precedence of an operator when used in an operation that includes optional chaining.
struct PrecedenceGroupAssociativitySyntax
Specifies how a sequence of operators with the same precedence level are grouped together in the absence of grouping parentheses.
struct PrecedenceGroupNameListSyntax
struct PrecedenceGroupNameSyntax
struct PrimaryAssociatedTypeListSyntax
struct PrimaryAssociatedTypeSyntax
struct SimpleStringLiteralSegmentListSyntax
String literal segments that only can contain non string interpolated or extended escaped strings
struct StringSegmentSyntax
A literal segment inside a string segment.
struct SpecializeAttributeArgumentListSyntax
A collection of arguments for the @_specialize
attribute
struct LabeledSpecializeArgumentSyntax
A labeled argument for the @_specialize
attribute like exported: true
struct SpecializeAvailabilityArgumentSyntax
The availability argument for the _specialize attribute
struct SpecializeTargetFunctionArgumentSyntax
A labeled argument for the @_specialize
attribute with a function decl value like target: myFunc(_:)
struct GenericWhereClauseSyntax
A where
clause that places additional constraints on generic parameters like where Element: Hashable
.
struct StringLiteralSegmentListSyntax
struct ExpressionSegmentSyntax
An interpolated expression inside a string literal.
struct SwitchCaseItemListSyntax
struct SwitchCaseItemSyntax
struct SwitchCaseListSyntax
struct SwitchCaseSyntax
struct TuplePatternElementListSyntax
A list of TuplePatternElementSyntax
.
struct TuplePatternElementSyntax
An element that represents a single tuple value in TuplePatternElementListSyntax
.
struct TupleTypeElementListSyntax
struct TupleTypeElementSyntax
struct TypeSpecifierListSyntax
struct SimpleTypeSpecifierSyntax
A specifier that can be attached to a type to eg. mark a parameter as inout
or consuming
struct UnexpectedNodesSyntax
A collection of syntax nodes that occurred in the source code but could not be used to form a valid syntax tree.
struct VersionComponentListSyntax
struct VersionComponentSyntax
An element to represent a single component in a version, like .1
.
struct YieldedExpressionListSyntax
struct YieldedExpressionSyntax
protocol BidirectionalCollection<Element> : Collection where Self.Indices : BidirectionalCollection, Self.SubSequence : BidirectionalCollection
A collection that supports backward as well as forward traversal.
protocol Collection<Element> : Sequence
A sequence whose elements can be traversed multiple times, nondestructively, and accessed by an indexed subscript.
protocol Sendable
A thread-safe type whose values can be shared across arbitrary concurrent contexts without introducing a risk of data races. Values of the type may have no shared mutable state, or they may protect that state with a lock or by forcing it to only be accessed from a specific actor.
protocol Sequence<Element>
A type that provides sequential, iterated access to its elements.
var endIndex: SyntaxChildrenIndex { get }
The index that’s one after the last element in the collection.
var startIndex: SyntaxChildrenIndex { get }
The index of the first child in this collection.
subscript(index: SyntaxChildrenIndex) -> Syntax { get }
The syntax node at the given index
func index(after index: SyntaxChildrenIndex) -> SyntaxChildrenIndex
The index for the child that’s after the child at index
.
func index(before index: SyntaxChildrenIndex) -> SyntaxChildrenIndex
The index for the child that’s before the child at index
.
func index(of node: Syntax) -> SyntaxChildrenIndex?
Return the index of node
within this collection.
func index(of node: some SyntaxProtocol) -> SyntaxChildrenIndex?
Return the index of node
within this collection.
typealias Element = Syntax
SyntaxChildren
contains Syntax
nodes.
typealias Index = SyntaxChildrenIndex
SyntaxChildren
is indexed by SyntaxChildrenIndex
.
var count: Int { get }
The number of elements in the collection.
var first: Self.Element? { get }
The first element of the collection.
var indices: DefaultIndices<Self> { get }
The indices that are valid for subscripting the collection, in ascending order.
var isEmpty: Bool { get }
A Boolean value indicating whether the collection is empty.
var last: Self.Element? { get }
The last element of the collection.
var lazy: LazySequence<Self> { get }
A sequence containing the same elements as this sequence, but on which some operations, such as map
and filter
, are implemented lazily.
var underestimatedCount: Int { get }
A value less than or equal to the number of elements in the collection.
func allSatisfy(_ predicate: (Self.Element) throws -> Bool) rethrows -> Bool
Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.
func compactMap<ElementOfResult>(_ transform: (Self.Element) throws -> ElementOfResult?) rethrows -> [ElementOfResult]
Returns an array containing the non-nil
results of calling the given transformation with each element of this sequence.
func contains(_ element: Self.Element) -> Bool
Returns a Boolean value indicating whether the sequence contains the given element.
func contains(where predicate: (Self.Element) throws -> Bool) rethrows -> Bool
Returns a Boolean value indicating whether the sequence contains an element that satisfies the given predicate.
func count<E>(where predicate: (Self.Element) throws(E) -> Bool) throws(E) -> Int where E : Error
Returns the number of elements in the sequence that satisfy the given predicate.
func difference<C>(from other: C) -> CollectionDifference<Self.Element> where C : BidirectionalCollection, Self.Element == C.Element
Returns the difference needed to produce this collection’s ordered elements from the given collection.
func difference<C>(from other: C, by areEquivalent: (C.Element, Self.Element) -> Bool) -> CollectionDifference<Self.Element> where C : BidirectionalCollection, Self.Element == C.Element
Returns the difference needed to produce this collection’s ordered elements from the given collection, using the given predicate as an equivalence test.
func distance(from start: Self.Index, to end: Self.Index) -> Int
func drop(while predicate: (Self.Element) throws -> Bool) rethrows -> Self.SubSequence
Returns a subsequence by skipping elements while predicate
returns true
and returning the remaining elements.
func dropFirst(_ k: Int = 1) -> Self.SubSequence
Returns a subsequence containing all but the given number of initial elements.
func dropLast(_ k: Int) -> Self.SubSequence
Returns a subsequence containing all but the specified number of final elements.
func elementsEqual<OtherSequence>(_ other: OtherSequence) -> Bool where OtherSequence : Sequence, Self.Element == OtherSequence.Element
Returns a Boolean value indicating whether this sequence and another sequence contain the same elements in the same order.
func elementsEqual<OtherSequence>(_ other: OtherSequence, by areEquivalent: (Self.Element, OtherSequence.Element) throws -> Bool) rethrows -> Bool where OtherSequence : Sequence
Returns a Boolean value indicating whether this sequence and another sequence contain equivalent elements in the same order, using the given predicate as the equivalence test.
func enumerated() -> EnumeratedSequence<Self>
Returns a sequence of pairs (n, x), where n represents a consecutive integer starting at zero and x represents an element of the sequence.
func filter(_ isIncluded: (Self.Element) throws -> Bool) rethrows -> [Self.Element]
Returns an array containing, in order, the elements of the sequence that satisfy the given predicate.
func first(where predicate: (Self.Element) throws -> Bool) rethrows -> Self.Element?
Returns the first element of the sequence that satisfies the given predicate.
func firstIndex(of element: Self.Element) -> Self.Index?
Returns the first index where the specified value appears in the collection.
func firstIndex(where predicate: (Self.Element) throws -> Bool) rethrows -> Self.Index?
Returns the first index in which an element of the collection satisfies the given predicate.
func firstRange<C>(of other: C) -> Range<Self.Index>? where C : Collection, Self.Element == C.Element
Finds and returns the range of the first occurrence of a given collection within this collection.
func flatMap<SegmentOfResult>(_ transform: (Self.Element) throws -> SegmentOfResult) rethrows -> [SegmentOfResult.Element] where SegmentOfResult : Sequence
Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.
func forEach(_ body: (Self.Element) throws -> Void) rethrows
Calls the given closure on each element in the sequence in the same order as a for
-in
loop.
func formIndex(_ i: inout Self.Index, offsetBy distance: Int)
Offsets the given index by the specified distance.
func formIndex(_ i: inout Self.Index, offsetBy distance: Int, limitedBy limit: Self.Index) -> Bool
Offsets the given index by the specified distance, or so that it equals the given limiting index.
func formIndex(after i: inout Self.Index)
Replaces the given index with its successor.
func formIndex(before i: inout Self.Index)
func index(_ i: Self.Index, offsetBy distance: Int) -> Self.Index
func index(_ i: Self.Index, offsetBy distance: Int, limitedBy limit: Self.Index) -> Self.Index?
func indices(of element: Self.Element) -> RangeSet<Self.Index>
Returns the indices of all the elements that are equal to the given element.
func indices(where predicate: (Self.Element) throws -> Bool) rethrows -> RangeSet<Self.Index>
Returns the indices of all the elements that match the given predicate.
func last(where predicate: (Self.Element) throws -> Bool) rethrows -> Self.Element?
Returns the last element of the sequence that satisfies the given predicate.
func lastIndex(of element: Self.Element) -> Self.Index?
Returns the last index where the specified value appears in the collection.
func lastIndex(where predicate: (Self.Element) throws -> Bool) rethrows -> Self.Index?
Returns the index of the last element in the collection that matches the given predicate.
func lexicographicallyPrecedes<OtherSequence>(_ other: OtherSequence, by areInIncreasingOrder: (Self.Element, Self.Element) throws -> Bool) rethrows -> Bool where OtherSequence : Sequence, Self.Element == OtherSequence.Element
Returns a Boolean value indicating whether the sequence precedes another sequence in a lexicographical (dictionary) ordering, using the given predicate to compare elements.
func makeIterator() -> IndexingIterator<Self>
Returns an iterator over the elements of the collection.
func map<T, E>(_ transform: (Self.Element) throws(E) -> T) throws(E) -> [T] where E : Error
Returns an array containing the results of mapping the given closure over the sequence’s elements.
func map<T, E>(_ transform: (Self.Element) throws(E) -> T) throws(E) -> [T] where E : Error
Returns an array containing the results of mapping the given closure over the sequence’s elements.
@warn_unqualified_access func max(by areInIncreasingOrder: (Self.Element, Self.Element) throws -> Bool) rethrows -> Self.Element?
Returns the maximum element in the sequence, using the given predicate as the comparison between elements.
@warn_unqualified_access func min(by areInIncreasingOrder: (Self.Element, Self.Element) throws -> Bool) rethrows -> Self.Element?
Returns the minimum element in the sequence, using the given predicate as the comparison between elements.
func prefix(_ maxLength: Int) -> Self.SubSequence
Returns a subsequence, up to the specified maximum length, containing the initial elements of the collection.
func prefix(through position: Self.Index) -> Self.SubSequence
Returns a subsequence from the start of the collection through the specified position.
func prefix(upTo end: Self.Index) -> Self.SubSequence
Returns a subsequence from the start of the collection up to, but not including, the specified position.
func prefix(while predicate: (Self.Element) throws -> Bool) rethrows -> Self.SubSequence
Returns a subsequence containing the initial elements until predicate
returns false
and skipping the remaining elements.
func randomElement() -> Self.Element?
Returns a random element of the collection.
func randomElement<T>(using generator: inout T) -> Self.Element? where T : RandomNumberGenerator
Returns a random element of the collection, using the given generator as a source for randomness.
func ranges<C>(of other: C) -> [Range<Self.Index>] where C : Collection, Self.Element == C.Element
Finds and returns the ranges of the all occurrences of a given sequence within the collection.
func reduce<Result>(_ initialResult: Result, _ nextPartialResult: (Result, Self.Element) throws -> Result) rethrows -> Result
Returns the result of combining the elements of the sequence using the given closure.
func reduce<Result>(into initialResult: Result, _ updateAccumulatingResult: (inout Result, Self.Element) throws -> ()) rethrows -> Result
Returns the result of combining the elements of the sequence using the given closure.
func removingSubranges(_ subranges: RangeSet<Self.Index>) -> DiscontiguousSlice<Self>
Returns a collection of the elements in this collection that are not represented by the given range set.
func reversed() -> ReversedCollection<Self>
Returns a view presenting the elements of the collection in reverse order.
func shuffled() -> [Self.Element]
Returns the elements of the sequence, shuffled.
func shuffled<T>(using generator: inout T) -> [Self.Element] where T : RandomNumberGenerator
Returns the elements of the sequence, shuffled using the given generator as a source for randomness.
func sorted(by areInIncreasingOrder: (Self.Element, Self.Element) throws -> Bool) rethrows -> [Self.Element]
Returns the elements of the sequence, sorted using the given predicate as the comparison between elements.
func split(maxSplits: Int = Int.max, omittingEmptySubsequences: Bool = true, whereSeparator isSeparator: (Self.Element) throws -> Bool) rethrows -> [Self.SubSequence]
Returns the longest possible subsequences of the collection, in order, that don’t contain elements satisfying the given predicate.
func split(separator: Self.Element, maxSplits: Int = Int.max, omittingEmptySubsequences: Bool = true) -> [Self.SubSequence]
Returns the longest possible subsequences of the collection, in order, around elements equal to the given element.
func starts<PossiblePrefix>(with possiblePrefix: PossiblePrefix) -> Bool where PossiblePrefix : Sequence, Self.Element == PossiblePrefix.Element
Returns a Boolean value indicating whether the initial elements of the sequence are the same as the elements in another sequence.
func starts<PossiblePrefix>(with possiblePrefix: PossiblePrefix, by areEquivalent: (Self.Element, PossiblePrefix.Element) throws -> Bool) rethrows -> Bool where PossiblePrefix : Sequence
Returns a Boolean value indicating whether the initial elements of the sequence are equivalent to the elements in another sequence, using the given predicate as the equivalence test.
func suffix(_ maxLength: Int) -> Self.SubSequence
Returns a subsequence, up to the given maximum length, containing the final elements of the collection.
func suffix(from start: Self.Index) -> Self.SubSequence
Returns a subsequence from the specified position to the end of the collection.
func trimmingPrefix<Prefix>(_ prefix: Prefix) -> Self.SubSequence where Prefix : Sequence, Self.Element == Prefix.Element
Returns a new collection of the same type by removing prefix
from the start of the collection.
func trimmingPrefix(while predicate: (Self.Element) throws -> Bool) rethrows -> Self.SubSequence
func withContiguousStorageIfAvailable<R>(_ body: (UnsafeBufferPointer<Self.Element>) throws -> R) rethrows -> R?
func flatMap<ElementOfResult>(_ transform: (Self.Element) throws -> ElementOfResult?) rethrows -> [ElementOfResult]