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♻️ simpler Interpreter memory storage
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44 changes: 44 additions & 0 deletions
44
PascalInterpreter/PascalInterpreter/Interpreter/Value+Extensions.swift
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// | ||
// Value+Extensions.swift | ||
// PascalInterpreter | ||
// | ||
// Created by Igor Kulman on 25/12/2017. | ||
// Copyright © 2017 Igor Kulman. All rights reserved. | ||
// | ||
|
||
import Foundation | ||
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extension Value: Equatable { | ||
static func == (lhs: Value, rhs: Value) -> Bool { | ||
switch (lhs, rhs) { | ||
case let (.number(left), .number(right)): | ||
return left == right | ||
case let (.boolean(left), .boolean(right)): | ||
return left == right | ||
case let (.string(left), .string(right)): | ||
return left == right | ||
default: | ||
return false | ||
} | ||
} | ||
} | ||
|
||
extension Value: CustomStringConvertible { | ||
public var description: String { | ||
switch self { | ||
case .none: | ||
return "NIL" | ||
case .boolean(let value): | ||
return "BOOLEAN(\(value))" | ||
case .string(let value): | ||
return "STRING(\(value))" | ||
case .number(let number): | ||
switch number { | ||
case .integer(let value): | ||
return "INTEGER(\(value)" | ||
case .real(let value): | ||
return "REAL(\(value)" | ||
} | ||
} | ||
} | ||
} |
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