29099ded0c
This patch adds a new AST node: ObjCAvailabilityCheckExpr, and teaches the Parser and Sema to generate it. This node represents an availability check of the form: @available(macos 10.10, *); Which will eventually compile to a runtime check of the host's OS version. This is the first patch of the feature I proposed here: http://lists.llvm.org/pipermail/cfe-dev/2016-July/049851.html Differential Revision: https://reviews.llvm.org/D22171 llvm-svn: 275654
25 lines
1.0 KiB
Objective-C
25 lines
1.0 KiB
Objective-C
// RUN: %clang_cc1 -fsyntax-only -Wunguarded-availability -triple x86_64-apple-macosx10.10.0 -verify %s
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void f() {
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if (@available(macos 10.12, *)) {}
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else if (@available(macos 10.11, *)) {}
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else {}
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(void)__builtin_available(ios 8, macos 10.10, *);
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(void)@available(macos 10.11); // expected-error{{must handle potential future platforms with '*'}}
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(void)@available(macos 10.11, macos 10.11, *); // expected-error{{version for 'macos' already specified}}
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(void)@available(erik_os 10.11, *); // expected-error{{unrecognized platform name erik_os}}
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(void)@available(erik_os 10.10, hat_os 1.0, *); // expected-error 2 {{unrecognized platform name}}
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(void)@available(ios 8, *); // expected-warning{{using '*' case here, platform macos is not accounted for}}
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(void)@available(); // expected-error{{expected a platform name here}}
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(void)@available(macos 10.10,); // expected-error{{expected a platform name here}}
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(void)@available(macos); // expected-error{{expected a version}}
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(void)@available; // expected-error{{expected '('}}
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}
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