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Add validation test for fixed crasher #20627

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Merged
merged 1 commit into from
Nov 16, 2018
Merged

Add validation test for fixed crasher #20627

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29 changes: 29 additions & 0 deletions validation-test/compiler_crashers_2_fixed/0182-rdar45680857.swift
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Original file line number Diff line number Diff line change
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// RUN: %target-swift-frontend -emit-ir %s

public protocol Graph: class, Collection {
associatedtype V
associatedtype E
}

public protocol EdgeContainer {
associatedtype E
associatedtype Visitor: NeighboursVisitor where Visitor.C == Self

func push(_ thing: E)
}

public protocol NeighboursVisitor {
associatedtype C: EdgeContainer
associatedtype G: Graph where G.E == C.E
}

public enum LIFONeighboursVisitor<C: EdgeContainer, G: Graph>: NeighboursVisitor where G.E == C.E {

}

public class Stack<T, G: Graph>: EdgeContainer where T == G.E {
public typealias E = T
public typealias Visitor = LIFONeighboursVisitor<Stack<T, G>, G>

public func push(_ thing: T) { }
}