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Dynamic replacements are currently written in extensions as
extension ExtendedType {
@_dynamicReplacement(for: replacedFun())
func replacement() { }
}
The runtime implementation allows an implementation in the future where
dynamic replacements are gather in a scope and can be dynamically
enabled and disabled.
For example:
dynamic_extension_scope CollectionOfReplacements {
extension ExtentedType {
func replacedFun() {}
}
extension ExtentedType2 {
func replacedFun() {}
}
}
CollectionOfReplacements.enable()
CollectionOfReplacements.disable()
21 lines
595 B
Swift
21 lines
595 B
Swift
// RUN: %target-typecheck-verify-swift -swift-version 5
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dynamic func dynamic_replaceable() {
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}
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@_dynamicReplacement
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// expected-error@-1 {{expected '(' in '_dynamicReplacement' attribute}}
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func test_dynamic_replacement_for() {
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}
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@_dynamicReplacement(
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// expected-error@-1 {{expected 'for' in '_dynamicReplacement' attribute}}
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func test_dynamic_replacement_for2() {
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}
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@_dynamicReplacement(for: dynamically_replaceable() // expected-note {{to match this opening '('}}
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func test_dynamic_replacement_for3() {
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// expected-error@-1 {{expected ')' after function name for @_dynamicReplacement}}
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}
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