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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2021-2022 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
//
//===----------------------------------------------------------------------===//
internal import _RegexParser
struct MEProgram {
typealias Input = String
typealias ConsumeFunction = (Input, Range<Input.Index>) -> Input.Index?
typealias TransformFunction =
(Input, Processor._StoredCapture) throws -> Any?
typealias MatcherFunction =
(Input, Input.Index, Range<Input.Index>) throws -> (Input.Index, Any)?
var instructions: InstructionList<Instruction>
var wholeMatchValueRegister: ValueRegister?
var enableTracing: Bool
var enableMetrics: Bool
let captureList: CaptureList
let referencedCaptureOffsets: [ReferenceID: Int]
var initialOptions: MatchingOptions
var canOnlyMatchAtStart: Bool
// We store the initial register state in the program, so that
// processors can be spun up quicker (useful for running same regex
// over many, many smaller inputs).
var registers: Processor.Registers
var storedCaptures: [Processor._StoredCapture]
}
extension MEProgram: CustomStringConvertible {
var description: String {
// TODO: Re-instate better pretty-printing functionality
var result = """
"""
// TODO: Extract into formatting code
for idx in instructions.indices {
let inst = instructions[idx]
result += "[\(idx.rawValue)] \(inst)"
if let ia = inst.instructionAddress {
result += " // \(instructions[ia])"
}
result += "\n"
}
return result
}
}
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