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SILGen: Handle existential keypath root types.

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SR-4917|rdar://problem/32254554
This commit is contained in:
Joe Groff
2017-05-31 16:01:02 -07:00
parent 1ce8753796
commit 4fc0b7df96
7 changed files with 129 additions and 44 deletions
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34
test/stdlib/KeyPath.swift
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@@ -279,12 +279,18 @@ keyPath.test("computed properties") {
class AB {
}
class ABC: AB {
class ABC: AB, ABCProtocol {
var a = LifetimeTracked(1)
var b = LifetimeTracked(2)
var c = LifetimeTracked(3)
}
protocol ABCProtocol {
var a: LifetimeTracked { get }
var b: LifetimeTracked { get set }
var c: LifetimeTracked { get nonmutating set }
}
keyPath.test("dynamically-typed application") {
let cPaths = [\ABC.a, \ABC.b, \ABC.c]
@@ -312,6 +318,32 @@ keyPath.test("dynamically-typed application") {
expectTrue(wrongFields[1] == nil)
expectTrue(wrongFields[2] == nil)
}
var protoErasedSubject: ABCProtocol = subject
let protoErasedPathA = \ABCProtocol.a
let protoErasedPathB = \ABCProtocol.b
let protoErasedPathC = \ABCProtocol.c
do {
expectTrue(protoErasedSubject.a ===
protoErasedSubject[keyPath: protoErasedPathA])
let newB = LifetimeTracked(4)
expectTrue(protoErasedSubject.b ===
protoErasedSubject[keyPath: protoErasedPathB])
protoErasedSubject[keyPath: protoErasedPathB] = newB
expectTrue(protoErasedSubject.b ===
protoErasedSubject[keyPath: protoErasedPathB])
expectTrue(protoErasedSubject.b === newB)
let newC = LifetimeTracked(5)
expectTrue(protoErasedSubject.c ===
protoErasedSubject[keyPath: protoErasedPathC])
protoErasedSubject[keyPath: protoErasedPathC] = newC
expectTrue(protoErasedSubject.c ===
protoErasedSubject[keyPath: protoErasedPathC])
expectTrue(protoErasedSubject.c === newC)
}
}
runAllTests()