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37 lines
1.0 KiB
Swift
37 lines
1.0 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -emit-module -o %t %S/Inputs/ExternPrecedences.swift
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// RUN: %target-typecheck-verify-swift -I%t
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import ExternPrecedences
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precedencegroup A {
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higherThan: A // expected-error {{cycle in higherThan relation: A -> A}}
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}
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precedencegroup B { // expected-note {{precedence group declared here}}
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lowerThan: B // expected-error {{precedence group cannot be given lower precedence than group in same module; make the other precedence group higher than this one instead}}
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}
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precedencegroup C0 {
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higherThan: C1
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}
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precedencegroup C1 {
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higherThan: C0 // expected-error {{cycle in higherThan relation: C1 -> C0 -> C1}}
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}
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precedencegroup D0 {
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higherThan: D1
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}
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precedencegroup D1 {
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higherThan: D2
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}
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precedencegroup D2 {
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higherThan: D0 // expected-error {{cycle in higherThan relation: D2 -> D0 -> D1 -> D2}}
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}
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precedencegroup E0 {
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higherThan: Extern1 // expected-error {{cycle in higherThan relation: E0 -> Extern1 -> Extern0 -> E0}}
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lowerThan: Extern0
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}
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