Parser

public enum Parser : Sendable

Notes:

Be careful when writing rules that start with an optional symbol that may be recognized at the beginning of the following construct. A naive combinator may not be able to backtrack. For example:

let p0 = maybe(foo.and(bar)).and(ham)
let p1 = foo.and(bar).or(ham)

Both p0 and p1 will fail to recognize inputs recognized by ham if foo can recognize the same prefix, as the latter will throw a committing failure it applies bar rather than backtracking. A correct definition is:

let p2 = attempt(foo.and(bar)).or(foo)

A namespace for the routines of Hylo’s parser.

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parse(_:inNodeSpace:in:diagnostics:)
Parses the contents of input as a translation unit, registering the identities of newly formed ASTs in space k and reporting errors to diagnostics.

Throws
Diagnostics if syntax errors were encountered.
Declaration
Swift

public static func parse( _ input: SourceFile, inNodeSpace k: Int, in ast: inout AST, diagnostics: inout DiagnosticSet ) throws -> TranslationUnit.ID
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fail(_:)
Fails the parsing of the expected construct with the given diagnostic.
Declaration
Swift

private static func fail(_ d: Diagnostic) throws -> Never
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                    fail(_:)

Fails the parsing of the expected construct with the given diagnostics.

Declaration

Swift

private static func fail<C>(_ ds: C) throws -> Never where C : Collection, C.Element == Diagnostic

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Declarations


                    
                    
                    parseDeclPrologue(in:then:)

Parses a declaration prologue in state and then calls continuation.

Declaration

Swift

static func parseDeclPrologue<R>(
  in state: inout ParserState,
  then continuation: (_ prologue: DeclPrologue, _ state: inout ParserState) throws -> R?
) throws -> R?

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parseDecl(in:)
Parses a declaration in state.
See more
Declaration
Swift

static func parseDecl(in state: inout ParserState) throws -> AnyDeclID?
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                    parseTypeDeclBody(in:wrappedIn:)

Parses the body of a type declaration, adding context to state.contexts while parsing each member declaration.

Note

The function never returns a soft failure. It will throw if it can’t parse the left brace of the body, even if it didn’t consume any token from the stream.

Declaration

Swift

private static func parseTypeDeclBody(
  in state: inout ParserState,
  wrappedIn context: ParserState.Context
) throws -> [AnyDeclID]

Parameters

`state`	A mutable projection of the parser’s state.
`context`	The parser context in which members should be parsed.

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                    parseAssociatedTypeDecl(withPrologue:in:)

Parses an instance of AssociatedTypeDecl.

Declaration

Swift

static func parseAssociatedTypeDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> AssociatedTypeDecl.ID?

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                    parseAssociatedValueDecl(withPrologue:in:)

Parses an instance of AssociatedValueDecl.

Declaration

Swift

static func parseAssociatedValueDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> AssociatedValueDecl.ID?

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                    parseBindingDecl(in:)

Parses a declaration of bindings.

Declaration

Swift

private static func parseBindingDecl(in state: inout ParserState) throws -> BindingDecl.ID?

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parseBindingDecl(withPrologue:in:)
Parses a declaration of bindings prefixed by the given (already parsed) prologue.
Declaration
Swift

static func parseBindingDecl( withPrologue prologue: DeclPrologue, in state: inout ParserState ) throws -> BindingDecl.ID?
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                    parseConformanceDecl(withPrologue:in:)

Parses an instance of ConformanceDecl.

Declaration

Swift

static func parseConformanceDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> ConformanceDecl.ID?

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                    parseExtensionDecl(withPrologue:in:)

Parses an instance of ExtensionDecl.

Declaration

Swift

static func parseExtensionDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> ExtensionDecl.ID?

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                    parseFunctionOrMethodDecl(withPrologue:in:)

Parses an instance of FunctionDecl or MethodDecl.

Declaration

Swift

static func parseFunctionOrMethodDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> AnyDeclID?

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                    buildFunctionDecl(prologue:head:signature:body:in:)

Builds a new instance of FunctionDecl from its parsed parts.

Declaration

Swift

private static func buildFunctionDecl(
  prologue: DeclPrologue,
  head: FunctionDeclHead,
  signature: FunctionDeclSignature,
  body: FunctionBody?,
  in state: inout ParserState
) throws -> FunctionDecl.ID

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                    buildMethodDecl(prologue:head:signature:impls:in:)

Builds a new instance of Method from its parsed parts.

Declaration

Swift

private static func buildMethodDecl(
  prologue: DeclPrologue,
  head: FunctionDeclHead,
  signature: FunctionDeclSignature,
  impls: [MethodImpl.ID],
  in state: inout ParserState
) throws -> MethodDecl.ID

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                    parseImportDecl(withPrologue:in:)

Parses an instance of ImportDecl.

Declaration

Swift

static func parseImportDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> ImportDecl.ID?

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                    parseInitDecl(withPrologue:in:)

Parses an instance of InitializerDecl.

Declaration

Swift

static func parseInitDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> InitializerDecl.ID?

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                    parseMemberwiseInitDecl(withPrologue:in:)

Parses an instance of InitializerDecl.

Declaration

Swift

static func parseMemberwiseInitDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> InitializerDecl.ID?

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                    parseNamespaceDecl(withPrologue:in:)

Parses an instance of NamespaceDecl.

Declaration

Swift

static func parseNamespaceDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> NamespaceDecl.ID?

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                    parseOperatorDecl(withPrologue:in:)

Parses an instance of OperatorDecl.

Declaration

Swift

static func parseOperatorDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> OperatorDecl.ID?

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                    parsePropertyDecl(withPrologue:in:)

Parses an instance of SubscriptDecl representing a property declaration.

Declaration

Swift

static func parsePropertyDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> SubscriptDecl.ID?

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                    parseSubscriptDecl(withPrologue:in:)

Parses an instance of SubscriptDecl.

Declaration

Swift

static func parseSubscriptDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> SubscriptDecl.ID?

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                    parseSubscriptDeclBody(in:asNonStaticMember:)

Undocumented

Declaration

Swift

static func parseSubscriptDeclBody(
  in state: inout ParserState,
  asNonStaticMember isNonStaticMember: Bool
) throws -> [SubscriptImpl.ID]?

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                    buildSubscriptImpl(in:introducedBy:body:asNonStaticMember:)

Inserts a subscript having the given introducer and body into state.ast and returns its ID.

Requires

if introducer is nil, body is non-nil.

Declaration

Swift

private static func buildSubscriptImpl(
  in state: inout ParserState,
  introducedBy introducer: SourceRepresentable<AccessEffect>,
  body: FunctionBody?,
  asNonStaticMember isNonStaticMember: Bool
) throws -> SubscriptImpl.ID

Parameters

`introducer`	The introducer of the declaration, or `nil` if it is implicit. In that case, it is synthesized as `let`.
`body`	The body of the declaration, or `nil` if that body should must be synthesized or if the declaration denotes a trait requirement.

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                    parseTraitDecl(withPrologue:in:)

Parses an instance of TraitDecl.

Declaration

Swift

static func parseTraitDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> TraitDecl.ID?

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                    parseProductTypeDecl(withPrologue:in:)

Parses an instance of ProductTypeDecl.

Declaration

Swift

static func parseProductTypeDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> ProductTypeDecl.ID?

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                    parseTypeAliasDecl(withPrologue:in:)

Parses an instance of TypeAliasDecl.

Declaration

Swift

static func parseTypeAliasDecl(
  withPrologue prologue: DeclPrologue,
  in state: inout ParserState
) throws -> TypeAliasDecl.ID?

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                    declAccessModifier(ofDeclPrologue:in:)

Returns the access modifier in prologue if in contains one, or synthesizes an implicit one.

Declaration

Swift

private static func declAccessModifier(
  ofDeclPrologue prologue: DeclPrologue,
  in state: inout ParserState
) -> SourceRepresentable<AccessModifier>

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                    parseFunctionDeclHead(in:)

Undocumented

Declaration

Swift

static func parseFunctionDeclHead(
  in state: inout ParserState
) throws -> FunctionDeclHead?

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                    parseFunctionDeclSignature(in:)

Undocumented

Declaration

Swift

static func parseFunctionDeclSignature(
  in state: inout ParserState
) throws -> FunctionDeclSignature?

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                    functionOrMethodDeclBody

Undocumented

Declaration

Swift

private static let functionOrMethodDeclBody: TryCatch<Transform<Transform<Combine<Combine<TakeKind, OneOrMany<Transform<Combine<Apply<ParserState, SourceRepresentable<AccessEffect>>, Maybe<WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>>>, MethodImpl.ID>>>, TakeKind>, [MethodImpl.ID]>, FunctionOrMethodDeclBody>, Transform<WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>, FunctionOrMethodDeclBody>>

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                    functionBody

Undocumented

Declaration

Swift

static let functionBody: WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>

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                    methodDeclBody

Undocumented

Declaration

Swift

static let methodDeclBody: Transform<Combine<Combine<TakeKind, OneOrMany<Transform<Combine<Apply<ParserState, SourceRepresentable<AccessEffect>>, Maybe<WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>>>, MethodImpl.ID>>>, TakeKind>, [MethodImpl.ID]>

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                    methodImpl

Undocumented

Declaration

Swift

static let methodImpl: Transform<Combine<Apply<ParserState, SourceRepresentable<AccessEffect>>, Maybe<WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>>>, MethodImpl.ID>

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                    implIntroducer

Undocumented

Declaration

Swift

static let implIntroducer: Apply<ParserState, SourceRepresentable<AccessEffect>>

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                    initDeclBody

Undocumented

Declaration

Swift

static let initDeclBody: WrapInContext<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>>

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                    operatorIdentifier

Undocumented

Declaration

Swift

static let operatorIdentifier: Apply<ParserState, SourceRepresentable<Identifier>>

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                    operatorNotation

Undocumented

Declaration

Swift

static let operatorNotation: Apply<ParserState, SourceRepresentable<OperatorNotation>>

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                    precedenceGroup

Undocumented

Declaration

Swift

static let precedenceGroup: ContextualKeyword<PrecedenceGroup>

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                    propertyDeclHead

Undocumented

Declaration

Swift

static let propertyDeclHead: Transform<Combine<TakeKind, TakeKind>, PropertyDeclHead>

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                    propertyDeclSignature

Undocumented

Declaration

Swift

static let propertyDeclSignature: Apply<TakeKind.Context, AnyExprID>

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                    subscriptDeclHead

Undocumented

Declaration

Swift

static let subscriptDeclHead: Transform<Combine<Combine<Combine<TakeKind, Maybe<TakeKind>>, Maybe<Transform<Combine<Combine<Combine<TakeKind, Transform<Combine<Apply<ParserState, GenericParameterDecl.ID>, ZeroOrMany<Apply<TakeKind.Context, GenericParameterDecl.ID>>>, [GenericParameterDecl.ID]>>, Maybe<Transform<Combine<TakeKind, Transform<Combine<Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>, ZeroOrMany<Apply<TakeKind.Context, Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>.Element>>>, [SourceRepresentable<WhereClause.ConstraintExpr>]>>, SourceRepresentable<WhereClause>>>>, TakeKind>, SourceRepresentable<GenericClause>>>>, Maybe<Apply<ParserState, [BindingDecl.ID]>>>, SubscriptDeclHead>

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                    parseSubscriptDeclSignature(in:)

Undocumented

Declaration

Swift

static func parseSubscriptDeclSignature(
  in state: inout ParserState
) throws -> SubscriptDeclSignature?

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                    subscriptImpl

Undocumented

Declaration

Swift

static let subscriptImpl: Combine<Apply<ParserState, SourceRepresentable<AccessEffect>>, Maybe<WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>>>

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                    parseParameterDecl(in:)

Parses a parameter declaration.

Declaration

Swift

static func parseParameterDecl(in state: inout ParserState) throws -> ParameterDecl.ID?

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parseParameterInterface(in:)
Parses the (optional) label and name of a parameter declaration.
Declaration
Swift

static func parseParameterInterface( in state: inout ParserState ) throws -> ParameterInterface?
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                    parseParameterNameAndLabel(in:)

Parses the (optional) label and name of a parameter declaration.

Declaration

Swift

private static func parseParameterNameAndLabel(
  in state: inout ParserState
) throws -> (label: SourceRepresentable<Identifier>?, name: SourceRepresentable<Identifier>)?

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                    memberModifier

Undocumented

Declaration

Swift

static let memberModifier: Transform<TakeKind, SourceRepresentable<MemberModifier>>

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                    accessModifier

Undocumented

Declaration

Swift

static let accessModifier: Apply<ParserState, SourceRepresentable<AccessModifier>>

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                    captureList

Undocumented

Declaration

Swift

static let captureList: Apply<ParserState, [BindingDecl.ID]>

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                    parseCaptureList(in:)

Parses a capture list.

Declaration

Swift

private static func parseCaptureList(in state: inout ParserState) throws -> [BindingDecl.ID]?

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                    parseCaptureDecl(in:)

Parses an explicit capture declaration.

Declaration

Swift

private static func parseCaptureDecl(in state: inout ParserState) throws -> BindingDecl.ID?

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captureListSpecification
The specification of a capture list, for use in parseList(in:with:).
Declaration
Swift

private static let captureListSpecification: DelimitedCommaSeparatedList<Apply<ParserState, BindingDecl.ID>>
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                    genericClause

Undocumented

Declaration

Swift

static let genericClause: Transform<Combine<Combine<Combine<TakeKind, Transform<Combine<Apply<ParserState, GenericParameterDecl.ID>, ZeroOrMany<Apply<TakeKind.Context, GenericParameterDecl.ID>>>, [GenericParameterDecl.ID]>>, Maybe<Transform<Combine<TakeKind, Transform<Combine<Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>, ZeroOrMany<Apply<TakeKind.Context, Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>.Element>>>, [SourceRepresentable<WhereClause.ConstraintExpr>]>>, SourceRepresentable<WhereClause>>>>, TakeKind>, SourceRepresentable<GenericClause>>

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                    genericParameterListContents

Undocumented

Declaration

Swift

static let genericParameterListContents: Transform<Combine<Apply<ParserState, GenericParameterDecl.ID>, ZeroOrMany<Apply<TakeKind.Context, GenericParameterDecl.ID>>>, [GenericParameterDecl.ID]>

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                    genericParameter

Undocumented

Declaration

Swift

static let genericParameter: Apply<ParserState, GenericParameterDecl.ID>

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                    parseGenericParameterDecl(in:)

Undocumented

Declaration

Swift

private static func parseGenericParameterDecl(
  in state: inout ParserState
) throws -> GenericParameterDecl.ID?

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                    parseGenericParameterIntroducer(in:)

Undocumented

Declaration

Swift

private static func parseGenericParameterIntroducer(
  in state: inout ParserState
) -> SourceRepresentable<GenericParameterDecl.Introducer>?

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                    conformanceList

Undocumented

Declaration

Swift

static let conformanceList: Transform<Combine<Combine<TakeKind, Apply<ParserState, NameExpr.ID>>, ZeroOrMany<Apply<TakeKind.Context, NameExpr.ID>>>, [NameExpr.ID]>

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parseDefaultValue(in:)
Parses a binding initializer or a parameter default value.
Declaration
Swift

private static func parseDefaultValue(in state: inout ParserState) throws -> AnyExprID?
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                    parseAscription(in:_:)

Parses a colon and returns the result of ascription applied on state.

Declaration

Swift

private static func parseAscription<T>(
  in state: inout ParserState, _ ascription: (inout ParserState) throws -> T?
) throws -> T?

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Expressions


                    
                    
                    expr

Undocumented

Declaration

Swift

static let expr: Apply<ParserState, AnyExprID>

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                    parseExpr(in:)

Parses an expression in state.

Declaration

Swift

static func parseExpr(in state: inout ParserState) throws -> AnyExprID?

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appendingCastTail(to:in:)
If the next token is a cast operator, parses an expression and returns a CastExpr appending it to lhs; returns nil otherwise.
Declaration
Swift

private static func appendingCastTail( to lhs: AnyExprID, in state: inout ParserState ) throws -> AnyExprID?
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appendingInfixTail(to:in:)
Parses pairs of infix operators and prefix expressions and, if one or more pairs were parsed, returns a SequenceExpr appending them to lhs; returns nil otherwise.
Declaration
Swift

private static func appendingInfixTail( to lhs: AnyExprID, in state: inout ParserState ) throws -> AnyExprID?
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                    parsePrefixExpr(in:)

Undocumented

Declaration

Swift

private static func parsePrefixExpr(in state: inout ParserState) throws -> AnyExprID?

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                    parsePostfixExpr(in:)

Undocumented

Declaration

Swift

private static func parsePostfixExpr(in state: inout ParserState) throws -> AnyExprID?

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                    parseCompoundExpr(in:)

Undocumented

Declaration

Swift

private static func parseCompoundExpr(in state: inout ParserState) throws -> AnyExprID?

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                    parseCompoundExprHead(in:)

Undocumented

Declaration

Swift

private static func parseCompoundExprHead(in state: inout ParserState) throws -> AnyExprID?

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appendingNameComponent(to:in:)
If the next token is a dot, parses a tuple or name components, and returns respectively a TupleMemberExpr or NameExpr appending it to head; returns nil otherwise.
Declaration
Swift

private static func appendingNameComponent( to head: AnyExprID, in state: inout ParserState ) throws -> AnyExprID?
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                    parsePrimaryExpr(in:)

Undocumented

Declaration

Swift

private static func parsePrimaryExpr(in state: inout ParserState) throws -> AnyExprID?

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parseIntegerOrFloatLiteralExpr(in:)
Parses an integer or float literal expression from state.
Declaration
Swift

private static func parseIntegerOrFloatLiteralExpr( in state: inout ParserState ) throws -> AnyExprID?
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parseFloatLiteralExpr(after:in:)
Parses a float literal expression from state, assuming it has the given integerPart.
Declaration
Swift

private static func parseFloatLiteralExpr( after integerPart: Token, in state: inout ParserState ) -> FloatLiteralExpr.ID?
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                    parseExistentialTypeExpr(in:)

Undocumented

Declaration

Swift

private static func parseExistentialTypeExpr(
  in state: inout ParserState
) throws -> ExistentialTypeExpr.ID?

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                    parsePrimaryDeclRefExpr(in:)

Undocumented

Declaration

Swift

private static func parsePrimaryDeclRefExpr(
  in state: inout ParserState
) throws -> NameExpr.ID?

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                    parsePragmaLiteralExpr(in:)

Parses a pragma literal from state.

Declaration

Swift

private static func parsePragmaLiteralExpr(
  in state: inout ParserState
) throws -> PragmaLiteralExpr.ID?

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                    parseImplicitMemberDeclRefExpr(in:)

Undocumented

Declaration

Swift

private static func parseImplicitMemberDeclRefExpr(
  in state: inout ParserState
) throws -> NameExpr.ID?

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                    parseNameExprComponent(in:)

Undocumented

Declaration

Swift

private static func parseNameExprComponent(
  in state: inout ParserState
) throws -> NameExprComponent?

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                    parseArgument(in:)

Undocumented

Declaration

Swift

private static func parseArgument(in state: inout ParserState) throws -> LabeledArgument?

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                    parseEntityName(in:)

Undocumented

Declaration

Swift

private static func parseEntityName(
  in state: inout ParserState
) throws -> SourceRepresentable<Name>?

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                    parseFunctionEntityName(in:)

Undocumented

Declaration

Swift

private static func parseFunctionEntityName(
  in state: inout ParserState
) throws -> SourceRepresentable<Name>?

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                    parseOperatorEntityName(in:)

Undocumented

Declaration

Swift

private static func parseOperatorEntityName(
  in state: inout ParserState
) throws -> SourceRepresentable<Name>?

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                    parseLambdaExpr(in:)

Undocumented

Declaration

Swift

private static func parseLambdaExpr(in state: inout ParserState) throws -> LambdaExpr.ID?

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                    lambdaBody

Undocumented

Declaration

Swift

private static let lambdaBody: WrapInContext<TryCatch<Transform<Combine<Combine<TakeKind, Apply<ParserState, AnyExprID>>, TakeKind>, FunctionBody>, Transform<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>, FunctionBody>>>

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                    parseConditionalExpr(in:)

Parses a conditional expression.

Declaration

Swift

private static func parseConditionalExpr(
  in state: inout ParserState
) throws -> ConditionalExpr.ID?

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                    parseBracedExpr(in:)

Parses a single expression enclosed in curly braces.

Declaration

Swift

private static func parseBracedExpr(
  in state: inout ParserState
) throws -> AnyExprID?

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                    parseMatchExpr(in:)

Undocumented

Declaration

Swift

private static func parseMatchExpr(in state: inout ParserState) throws -> MatchExpr.ID?

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                    parseMatchBody(in:)

Undocumented

Declaration

Swift

private static func parseMatchBody(in state: inout ParserState) throws -> [MatchCase.ID]?

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                    parseMatchCase(in:)

Undocumented

Declaration

Swift

private static func parseMatchCase(in state: inout ParserState) throws -> MatchCase.ID?

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                    parseMatchCaseBody(in:)

Undocumented

Declaration

Swift

private static func parseMatchCaseBody(in state: inout ParserState) throws -> MatchCase.Body?

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                    parseRemoteExpr(in:)

Undocumented

Declaration

Swift

private static func parseRemoteExpr(
  in state: inout ParserState
) throws -> RemoteTypeExpr.ID?

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                    parseSpawnExpr(in:)

Undocumented

Declaration

Swift

private static func parseSpawnExpr(in state: inout ParserState) throws -> SpawnExpr.ID?

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                    parseArrowTypeOrTupleExpr(in:)

Undocumented

Declaration

Swift

private static func parseArrowTypeOrTupleExpr(
  in state: inout ParserState
) throws -> AnyExprID?

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                    parseArrowTypeOrBracketedExpr(in:)

Undocumented

Declaration

Swift

private static func parseArrowTypeOrBracketedExpr(
  in state: inout ParserState
) throws -> AnyExprID?

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                    parseTupleOrParenthesizedExpr(in:)

Undocumented

Declaration

Swift

private static func parseTupleOrParenthesizedExpr(
  in state: inout ParserState
) throws -> AnyExprID?

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                    parseTupleExprElement(in:)

Undocumented

Declaration

Swift

private static func parseTupleExprElement(
  in state: inout ParserState
) throws -> TupleExpr.Element?

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                    parseTupleTypeExpr(in:)

Undocumented

Declaration

Swift

private static func parseTupleTypeExpr(
  in state: inout ParserState
) throws -> TupleTypeExpr.ID?

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                    parseTupleTypeExprElement(in:)

Undocumented

Declaration

Swift

private static func parseTupleTypeExprElement(
  in state: inout ParserState
) throws -> TupleTypeExpr.Element?

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                    parseCompoundLiteral(in:)

Undocumented

Declaration

Swift

private static func parseCompoundLiteral(in state: inout ParserState) throws -> AnyExprID?

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                    callArgument

Undocumented

Declaration

Swift

private static let callArgument: Apply<ParserState, LabeledArgument>

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                    conditionalClause

Undocumented

Declaration

Swift

static let conditionalClause: Transform<Combine<Apply<ParserState, ConditionItem>, ZeroOrMany<Apply<TakeKind.Context, ConditionItem>>>, [ConditionItem]>

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                    conditionalClauseItem

Undocumented

Declaration

Swift

static let conditionalClauseItem: Apply<ParserState, ConditionItem>

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                    parseConditionalClauseItem(in:)

Parses a part of a conditional clause.

Declaration

Swift

private static func parseConditionalClauseItem(
  in state: inout ParserState
) throws -> ConditionItem?

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parseConditionalClauseBinding(in:)
Parses a binding declaration used as part of a conditional clause.
Declaration
Swift

private static func parseConditionalClauseBinding( in state: inout ParserState ) throws -> ConditionItem?
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Comma-separated lists


                    
                    
                    staticArgumentList

Undocumented

Declaration

Swift

private static let staticArgumentList: DelimitedCommaSeparatedList<Apply<ParserState, LabeledArgument>>

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                    parseStaticArgumentList(in:)

Undocumented

Declaration

Swift

private static func parseStaticArgumentList(
  in state: inout ParserState
) throws -> [LabeledArgument]?

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                    functionCallArgumentList

Undocumented

Declaration

Swift

private static let functionCallArgumentList: DelimitedCommaSeparatedList<Apply<ParserState, LabeledArgument>>

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                    parseFunctionCallArgumentList(in:)

Undocumented

Declaration

Swift

private static func parseFunctionCallArgumentList(
  in state: inout ParserState
) throws -> [LabeledArgument]?

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                    subscriptCallArgumentList

Undocumented

Declaration

Swift

private static let subscriptCallArgumentList: DelimitedCommaSeparatedList<Apply<ParserState, LabeledArgument>>

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                    parseSubscriptCallArgumentList(in:)

Undocumented

Declaration

Swift

private static func parseSubscriptCallArgumentList(
  in state: inout ParserState
) throws -> [LabeledArgument]?

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                    attributeArgumentList

Undocumented

Declaration

Swift

private static let attributeArgumentList: DelimitedCommaSeparatedList<Apply<ParserState, Attribute.Argument>>

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                    parseAttributeArgumentList(in:)

Undocumented

Declaration

Swift

private static func parseAttributeArgumentList(
  in state: inout ParserState
) throws -> [Attribute.Argument]?

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                    parameterList

Undocumented

Declaration

Swift

private static let parameterList: DelimitedCommaSeparatedList<Apply<ParserState, ParameterDecl.ID>>

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                    parseParameterList(in:)

Undocumented

Declaration

Swift

private static func parseParameterList(
  in state: inout ParserState
) throws -> [ParameterDecl.ID]?

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                    arrowParameterList

Undocumented

Declaration

Swift

private static let arrowParameterList: DelimitedCommaSeparatedList<Apply<ParserState, ArrowTypeExpr.Parameter>>

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                    parseArrowParameterList(in:)

Undocumented

Declaration

Swift

private static func parseArrowParameterList(
  in state: inout ParserState
) throws -> [ArrowTypeExpr.Parameter]?

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                    parseList(in:with:)

Undocumented

Declaration

Swift

private static func parseList<C: Combinator>(
  in state: inout ParserState,
  with parser: DelimitedCommaSeparatedList<C>
) throws -> [C.Element]? where C.Context == ParserState

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                    tupleExprElementList

Undocumented

Declaration

Swift

private static let tupleExprElementList: DelimitedCommaSeparatedList<Apply<ParserState, TupleExpr.Element>>

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                    tupleTypeExprElementList

Undocumented

Declaration

Swift

private static let tupleTypeExprElementList: DelimitedCommaSeparatedList<Apply<ParserState, TupleTypeExpr.Element>>

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                    bufferLiteral

Undocumented

Declaration

Swift

private static let bufferLiteral: DelimitedCommaSeparatedList<Apply<ParserState, AnyExprID>>

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                    nonemptyMapLiteral

Undocumented

Declaration

Swift

private static let nonemptyMapLiteral: DelimitedCommaSeparatedList<Apply<ParserState, MapLiteralExpr.Element>>

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                    parseMapElement(in:)

Undocumented

Declaration

Swift

private static func parseMapElement(in state: inout ParserState) throws -> MapLiteralExpr.Element?

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                    parseMapLiteral(in:)

Undocumented

Declaration

Swift

private static func parseMapLiteral(in state: inout ParserState) throws -> MapLiteralExpr?

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Patterns


                    
                    
                    anyPattern(_:)

Undocumented

Declaration

Swift

private static func anyPattern<Base: Combinator>(
  _ base: Base
) -> AnyCombinator<ParserState, AnyPatternID>
where Base.Context == ParserState, Base.Element: PatternID

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                    parsePattern(in:)

Undocumented

Declaration

Swift

private static func parsePattern(in state: inout ParserState) throws -> AnyPatternID?

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                    bindingPattern

Undocumented

Declaration

Swift

private static let bindingPattern: Apply<ParserState, BindingPattern.ID>

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                    parseBindingPattern(in:)

Undocumented

Declaration

Swift

static func parseBindingPattern(
  in state: inout ParserState
) throws -> BindingPattern.ID?

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parseBindingIntroducer(in:)
Parses a binding introducer.

Should not be called before checking if the next token is _ if another wildcard rule could apply.
Declaration
Swift

private static func parseBindingIntroducer( in state: inout ParserState ) throws -> SourceRepresentable<BindingPattern.Introducer>?
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                    exprPattern

Undocumented

Declaration

Swift

static let exprPattern: Apply<ParserState, AnyPatternID>

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                    namePattern

Undocumented

Declaration

Swift

static let namePattern: Transform<TakeKind, NamePattern.ID>

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                    tuplePattern

Undocumented

Declaration

Swift

static let tuplePattern: Transform<Combine<Combine<TakeKind, Maybe<Transform<Combine<Apply<ParserState, TuplePattern.Element>, ZeroOrMany<Apply<TakeKind.Context, TuplePattern.Element>>>, [TuplePattern.Element]>>>, TakeKind>, TuplePattern.ID>

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                    tuplePatternElementList

Undocumented

Declaration

Swift

static let tuplePatternElementList: Transform<Combine<Apply<ParserState, TuplePattern.Element>, ZeroOrMany<Apply<TakeKind.Context, TuplePattern.Element>>>, [TuplePattern.Element]>

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                    tuplePatternElement

Undocumented

Declaration

Swift

static let tuplePatternElement: Apply<ParserState, TuplePattern.Element>

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                    wildcardPattern

Undocumented

Declaration

Swift

static let wildcardPattern: Transform<TakeKind, WildcardPattern.ID>

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Statements


                    
                    
                    anyStmt(_:)

Undocumented

Declaration

Swift

private static func anyStmt<Base: Combinator>(
  _ base: Base
) -> AnyCombinator<ParserState, AnyStmtID>
where Base.Context == ParserState, Base.Element: StmtID

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                    stmt

Undocumented

Declaration

Swift

static let stmt: Recursive<ParserState, AnyStmtID>

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                    _stmt

Undocumented

Declaration

Swift

static let _stmt: ChooseN<AnyCombinator<ParserState, AnyStmtID>>

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                    braceStmt

Undocumented

Declaration

Swift

static let braceStmt: Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>

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                    discardStmt

Undocumented

Declaration

Swift

static let discardStmt: Transform<Combine<Combine<TakeKind, TakeKind>, Apply<ParserState, AnyExprID>>, DiscardStmt.ID>

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                    parseElseClause(in:)

Undocumented

Declaration

Swift

private static func parseElseClause(
  in state: inout ParserState
) throws -> Introduced<AnyStmtID>?

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                    parseConditionalStmt(in:)

Parses a conditional statement.

Declaration

Swift

private static func parseConditionalStmt(
  in state: inout ParserState
) throws -> ConditionalStmt.ID?

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                    doWhileStmt

Undocumented

Declaration

Swift

static let doWhileStmt: Transform<Combine<Combine<Combine<TakeKind, WrapInContext<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>>>, TakeKind>, Apply<ParserState, AnyExprID>>, DoWhileStmt.ID>

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                    whileStmt

Undocumented

Declaration

Swift

static let whileStmt: Transform<Combine<Combine<TakeKind, Transform<Combine<Apply<ParserState, ConditionItem>, ZeroOrMany<Apply<TakeKind.Context, ConditionItem>>>, [ConditionItem]>>, WrapInContext<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>>>, WhileStmt.ID>

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                    forStmt

Undocumented

Declaration

Swift

static let forStmt: Apply<ParserState, ForStmt.ID>

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                    parseForLoop(in:)

Parses a for-loop.

Declaration

Swift

private static func parseForLoop(in state: inout ParserState) throws -> ForStmt.ID?

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                    parseForLoopBinding(in:)

Parses the binding of a for-loop.

Declaration

Swift

private static func parseForLoopBinding(in state: inout ParserState) throws -> BindingDecl.ID?

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                    parseForLoopFilter(in:)

Parses the filter of a for-loop.

Declaration

Swift

private static func parseForLoopFilter(
  in state: inout ParserState
) throws -> Introduced<AnyExprID>?

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                    loopBody

Undocumented

Declaration

Swift

static let loopBody: WrapInContext<Transform<Combine<Combine<Combine<TakeKind, ZeroOrMany<TakeKind>>, ZeroOrMany<Apply<ParserState, AnyStmtID>>>, TakeKind>, BraceStmt.ID>>

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                    returnStmt

Undocumented

Declaration

Swift

static let returnStmt: Transform<Combine<TakeKind, Maybe<Apply<ParserState, AnyExprID>>>, ReturnStmt.ID>

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                    yieldStmt

Undocumented

Declaration

Swift

static let yieldStmt: Transform<Combine<TakeKind, Apply<ParserState, AnyExprID>>, YieldStmt.ID>

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                    breakStmt

Undocumented

Declaration

Swift

static let breakStmt: Transform<TakeKind, BreakStmt.ID>

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                    continueStmt

Undocumented

Declaration

Swift

static let continueStmt: Transform<TakeKind, ContinueStmt.ID>

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                    bindingStmt

Undocumented

Declaration

Swift

static let bindingStmt: Apply<ParserState, AnyStmtID>

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                    parseBindingStmt(in:)

Parses a binding statement.

Declaration

Swift

private static func parseBindingStmt(in state: inout ParserState) throws -> AnyStmtID?

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                    declStmt

Undocumented

Declaration

Swift

static let declStmt: Transform<Apply<ParserState, AnyDeclID>, DeclStmt.ID>

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                    exprStmt

Undocumented

Declaration

Swift

static let exprStmt: Apply<ParserState, AnyStmtID>

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                    parseExprOrAssignStmt(in:)

Undocumented

Declaration

Swift

private static func parseExprOrAssignStmt(in state: inout ParserState) throws -> AnyStmtID?

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                    compilerConditionStmt

Undocumented

Declaration

Swift

static let compilerConditionStmt: Apply<ParserState, AnyStmtID>

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                    parseCompilerConditionStmt(in:)

Undocumented

Declaration

Swift

private static func parseCompilerConditionStmt(
  in state: inout ParserState
) throws -> AnyStmtID?

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parseConnective(in:)
Parses a logical connective from state.
Declaration
Swift

private static func parseConnective(in state: inout ParserState) -> Connective?
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                    parseCondition(in:)

Parses a Condition for a ConditionalCompilationStmt.

Declaration

Swift

private static func parseCondition(
  in state: inout ParserState
) throws -> ConditionalCompilationStmt.Condition

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parseCompilerConditionTail(head:in:)
Parses a compiler condition structure, after the initial token (#if or #elseif).
Declaration
Swift

private static func parseCompilerConditionTail( head: Token, in state: inout ParserState ) throws -> AnyStmtID
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skipConditionalCompilationBranch(in:stoppingAtElse:)
Skips the branch body of a conditional compilation statement and nested conditional compilation statements.
Declaration
Swift

private static func skipConditionalCompilationBranch( in state: inout ParserState, stoppingAtElse: Bool ) throws
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parseConditionalCompilationBranch(in:)
Parses the body of a compiler condition structure branch.
Declaration
Swift

private static func parseConditionalCompilationBranch( in state: inout ParserState ) throws -> [AnyStmtID]
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                    parseCompilerCondition(in:)

Parses the condition of a compiler conditional.

Declaration

Swift

private static func parseCompilerCondition(
  in state: inout ParserState
) throws -> ConditionalCompilationStmt.Condition

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Type expressions


                    
                    
                    nameTypeExpr

Undocumented

Declaration

Swift

private static let nameTypeExpr: Apply<ParserState, NameExpr.ID>

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                    parseNameTypeExpr(in:)

Undocumented

Declaration

Swift

private static func parseNameTypeExpr(in state: inout ParserState) throws -> NameExpr.ID?

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                    parseArrowParameter(in:)

Undocumented

Declaration

Swift

private static func parseArrowParameter(
  in state: inout ParserState
) throws -> ArrowTypeExpr.Parameter?

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                    parseParameterTypeExpr(in:)

Parses the type annotation of a parameter declaration.

Declaration

Swift

static func parseParameterTypeExpr(
  in state: inout ParserState
) throws -> NodeID<ParameterTypeExpr>?

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                    receiverEffect

Undocumented

Declaration

Swift

static let receiverEffect: Apply<ParserState, SourceRepresentable<AccessEffect>>

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                    passingConvention

Undocumented

Declaration

Swift

static let passingConvention: Apply<ParserState, SourceRepresentable<AccessEffect>>

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                    accessEffect

Undocumented

Declaration

Swift

static let accessEffect: Apply<ParserState, SourceRepresentable<AccessEffect>>

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                    whereClause

Undocumented

Declaration

Swift

static let whereClause: Transform<Combine<TakeKind, Transform<Combine<Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>, ZeroOrMany<Apply<TakeKind.Context, Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>.Element>>>, [SourceRepresentable<WhereClause.ConstraintExpr>]>>, SourceRepresentable<WhereClause>>

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                    whereClauseConstraintList

Undocumented

Declaration

Swift

static let whereClauseConstraintList: Transform<Combine<Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>, ZeroOrMany<Apply<TakeKind.Context, Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>.Element>>>, [SourceRepresentable<WhereClause.ConstraintExpr>]>

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                    whereClauseConstraint

Undocumented

Declaration

Swift

static let whereClauseConstraint: Choose<Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>, Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>>

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                    typeConstraint

Undocumented

Declaration

Swift

static let typeConstraint: Apply<ParserState, SourceRepresentable<WhereClause.ConstraintExpr>>

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                    valueConstraint

Undocumented

Declaration

Swift

static let valueConstraint: Transform<Combine<Apply<ParserState, Token>, Apply<ParserState, AnyExprID>>, SourceRepresentable<WhereClause.ConstraintExpr>>

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                    boundComposition

Undocumented

Declaration

Swift

static let boundComposition: Transform<Combine<Apply<ParserState, NameExpr.ID>, ZeroOrMany<Apply<TakeKind.Context, NameExpr.ID>>>, [NameExpr.ID]>

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Attributes


                    
                    
                    parseAttributeList(in:)

Parses a list of attributes.

Declaration

Swift

static func parseAttributeList(
  in state: inout ParserState
) throws -> [SourceRepresentable<Attribute>]?

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                    parseAttribute(in:)

Parses a single attribute.

Declaration

Swift

static func parseAttribute(
  in state: inout ParserState
) throws -> SourceRepresentable<Attribute>?

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                    parseAttributeArgument(in:)

Undocumented

Declaration

Swift

private static func parseAttributeArgument(
  in state: inout ParserState
) throws -> Attribute.Argument?

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                    valueAttribute

Undocumented

Declaration

Swift

static let valueAttribute: Apply<ParserState, Token>

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