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lower restriction on End parser from Collection to Sequence #250

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merged 1 commit into from
Sep 19, 2022
Merged

lower restriction on End parser from Collection to Sequence #250

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8 changes: 5 additions & 3 deletions Sources/Parsing/ParserPrinters/End.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -16,20 +16,22 @@
///
/// > Note: This parser is automatically inserted when you invoke the non-incremental
/// > ``Parser/parse(_:)-6h1d0`` and ``Parser/parse(_:)-2wzcq`` methods.
public struct End<Input: Collection>: ParserPrinter {
public struct End<Input: Sequence>: ParserPrinter {
@inlinable
public init() {}

@inlinable
public func parse(_ input: inout Input) throws {
guard input.isEmpty else {
var iterator = input.makeIterator()
guard iterator.next() == nil else {
throw ParsingError.expectedInput("end of input", at: input)
}
}

@inlinable
public func print(_ output: (), into input: inout Input) throws {
guard input.isEmpty else {
var iterator = input.makeIterator()
guard iterator.next() == nil else {
let description = describe(input).map { "\n\n\($0.debugDescription)" } ?? ""
throw PrintingError.failed(
summary: """
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