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114 lines
2.3 KiB
Swift
114 lines
2.3 KiB
Swift
// RUN: %target-typecheck-verify-swift
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// REQUIRES: objc_interop
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import Foundation
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import CoreGraphics
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/////////////
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struct G<T> { // expected-note {{arguments to generic parameter 'T' ('CGFloat?' and 'CGFloat') are expected to be equal}}
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var t: T
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}
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func foo1(x: (x: Int, y: Int)?, y: (Int, Int)) -> G<(x: Int, y: Int)> {
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let g = G(t: x ?? y)
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return g
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}
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func foo2(x: (Int, Int)?, y: (x: Int, y: Int)) -> G<(Int, Int)> {
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let g = G(t: x ?? y)
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return g
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}
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func foo3(x: (@convention(block) () -> ())?, y: @escaping () -> ()) -> G<@convention(block) () -> ()> {
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let g = G(t: x ?? y)
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return g
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}
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func foo4(x: (() -> ())?, y: @escaping @convention(block) () -> ()) -> G<() -> ()> {
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let g = G(t: x ?? y)
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return g
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}
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func foo5(x: CGFloat?, y: Double) -> G<CGFloat> {
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let g = G(t: x ?? y)
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// FIXME
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return g // expected-error {{cannot convert return expression of type 'G<CGFloat?>' to return type 'G<CGFloat>'}}
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}
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func foo6(x: Double?, y: CGFloat) -> G<Double> {
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let g = G(t: x ?? y)
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return g
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}
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/////////////
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func id<T>(_: T) -> T {}
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func bar1(x: (x: Int, y: Int)) {
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func f(_: (Int, Int)) {}
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f(id(x))
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}
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func bar2(x: (Int, Int)) {
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func f(_: (x: Int, y: Int)) {}
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f(id(x))
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}
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func bar3(x: @escaping () -> ()) {
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func f(_: @escaping @convention(block) () -> ()) {}
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// FIXME
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f(id(x)) // expected-error {{conflicting arguments to generic parameter 'T' ('@convention(block) () -> ()' vs. '() -> ()')}}
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}
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func bar4(x: @escaping @convention(block) () -> ()) {
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func f(_: @escaping () -> ()) {}
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// FIXME
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f(id(x)) // expected-error {{conflicting arguments to generic parameter 'T' ('() -> ()' vs. '@convention(block) () -> ()')}}
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}
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func bar5(x: Double) {
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func f(_: CGFloat) {}
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f(id(x))
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}
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func bar6(x: CGFloat) {
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func f(_: Double) {}
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f(id(x))
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}
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/////////////
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func unwrap<T>(_: T?) -> T {}
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func baz1(x: (x: Int, y: Int)?) {
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func f(_: (Int, Int)) {}
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f(unwrap(x))
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}
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func baz2(x: (Int, Int)?) {
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func f(_: (x: Int, y: Int)) {}
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f(unwrap(x))
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}
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func baz3(x: (() -> ())?) {
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func f(_: @escaping @convention(block) () -> ()) {}
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f(unwrap(x))
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}
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func baz4(x: (@convention(block) () -> ())?) {
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func f(_: @escaping () -> ()) {}
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f(unwrap(x))
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}
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func baz5(x: Double?) {
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func f(_: CGFloat) {}
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f(unwrap(x))
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}
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func baz6(x: CGFloat?) {
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func f(_: Double) {}
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f(unwrap(x))
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}
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