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175d0ba8e6
Clarify the sources of information when a conformance reference in a swiftmodule doesn't match with the requirements seen by the reader.
118 lines
4.0 KiB
Swift
118 lines
4.0 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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/// Reference build: Build libs and client for a normal build.
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// RUN: %target-swift-frontend -emit-module %t/ChangingLib.swift -I %t \
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// RUN: -emit-module-path %t/ChangingLib.swiftmodule
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// RUN: %target-swift-frontend -emit-module %t/MiddleLib.swift -I %t \
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// RUN: -emit-module-path %t/MiddleLib.swiftmodule
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// RUN: %target-swift-frontend -typecheck %t/Client.swift -I %t
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/// Case 1: Remove a conformance from one lib, leave the other as stale and
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/// rebuild client. Error on the missing conformance.
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// RUN: %target-swift-frontend -emit-module %t/ChangingLib.swift -I %t \
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// RUN: -emit-module-path %t/ChangingLib.swiftmodule \
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// RUN: -D DROP_CONFORMANCE
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// RUN: not %target-swift-frontend -typecheck %t/Client.swift -I %t \
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// RUN: 2> %t/errors.log
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// RUN: %FileCheck %s --input-file=%t/errors.log \
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// RUN: --check-prefix CHECK-REMARK-CONFORMANCE
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/// No errors when extended recovery is enabled.
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// RUN: %target-swift-frontend -typecheck %t/Client.swift -I %t \
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// RUN: -experimental-allow-module-with-compiler-errors -verify -verify-ignore-unrelated
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/// Case 2: Remove a requirement from one lib, leave the other as stale and
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/// rebuild client. Error on the mismatch.
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// RUN: %target-swift-frontend -emit-module %t/ChangingLib.swift -I %t \
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// RUN: -emit-module-path %t/ChangingLib.swiftmodule \
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// RUN: -D DROP_REQUIREMENT
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// RUN: not %target-swift-frontend -typecheck %t/Client.swift -I %t \
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// RUN: 2> %t/errors.log
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// RUN: %FileCheck %s --input-file=%t/errors.log \
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// RUN: --check-prefix CHECK-REMARK-REQUIREMENT
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/// No errors when extended recovery is enabled.
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// RUN: %target-swift-frontend -typecheck %t/Client.swift -I %t \
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// RUN: -experimental-allow-module-with-compiler-errors -verify -verify-ignore-unrelated
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/// Combined case: Remove both the conformance and the requirement.
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/// Fail on the removed conformance only as it was first.
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// RUN: %target-swift-frontend -emit-module %t/ChangingLib.swift -I %t \
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// RUN: -emit-module-path %t/ChangingLib.swiftmodule \
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// RUN: -D DROP_CONFORMANCE -D DROP_REQUIREMENT
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// RUN: not %target-swift-frontend -typecheck %t/Client.swift -I %t \
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// RUN: 2> %t/errors.log
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// RUN: %FileCheck %s --input-file=%t/errors.log \
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// RUN: --check-prefixes CHECK-REMARK-CONFORMANCE
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//--- ChangingLib.swift
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public protocol SimpleProto {
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func successor() -> Self
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}
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#if DROP_CONFORMANCE
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// CHECK-REMARK-CONFORMANCE: MiddleLib.swiftmodule:1:1: error: Conformance of 'Counter' to 'SimpleProto' not found in referenced module 'ChangingLib'
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// CHECK-REMARK-CONFORMANCE: note: Breaks conformances of 'OneToAThousand' to 'ProtoUser'
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#else
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extension Counter: SimpleProto {}
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#endif
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public protocol ProtoUser {
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associatedtype Element
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#if DROP_REQUIREMENT
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// CHECK-REMARK-REQUIREMENT: MiddleLib.swiftmodule:1:1: error: Listed conformances of 'OneToAThousand' do not match current requirement signature of 'ProtoUser'; 5 conformances for 6 requirements
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// CHECK-REMARK-REQUIREMENT: Requirements seen by this invocation:
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// Skipping implicits.
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// CHECK-REMARK-REQUIREMENT: Conformances written in the swiftmodule:
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// Skipping implicits.
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// CHECK-REMARK-REQUIREMENT: (specialized_conformance type="OneToAThousand.Impl" protocol="SimpleProto"
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// CHECK-REMARK-REQUIREMENT: (normal_conformance type="Counter<T>" protocol="SimpleProto"{{.*}} lazy))
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associatedtype Impl
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#else
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associatedtype Impl: SimpleProto
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#endif
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var start: Impl { get }
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subscript(_: Impl) -> Element { get }
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}
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public struct Counter<T> {
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public var value = 0
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public init(value: Int) { self.value = value }
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public func successor() -> Counter {
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return Counter(value: value + 1)
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}
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}
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//--- MiddleLib.swift
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import ChangingLib
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// Instantiate Counter<Int>, relying on Counter's adoption of SimpleProto.
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public struct OneToAThousand : ProtoUser {
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public typealias Impl = Counter<Int>
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public var start: Impl {
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return Impl(value: 1)
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}
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public subscript(i: Impl) -> Int {
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return i.value
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}
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public init() {}
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}
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//--- Client.swift
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import MiddleLib
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var test = OneToAThousand()
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var s = test.start
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print(test[s])
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