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adeb40f261
Removes the underscored prefixes from the @_section and @_used attributes, making them public as @section and @used respectively. The SymbolLinkageMarkers experimental feature has been removed as these attributes are now part of the standard language. Implemented expression syntactic checking rules per SE-0492. Major parts: - Renamed @_section to @section and @_used to @used - Removed the SymbolLinkageMarkers experimental feature - Added parsing support for the old underscored names with deprecation warnings - Updated all tests and examples to use the new attribute names - Added syntactic validation for @section to align with SE-0492 (reusing the legality checker by @artemcm) - Changed @DebugDescription macro to explicitly use a tuple type instead of type inferring it, to comply with the expression syntax rules - Added a testcase for the various allowed and disallowed syntactic forms, `test/ConstValues/SectionSyntactic.swift`.
26 lines
1015 B
Swift
26 lines
1015 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -enable-experimental-feature Embedded -module-name main -O %s -emit-ir | %FileCheck %s --check-prefix=CHECK-IR
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// RUN: %target-swift-frontend -enable-experimental-feature Embedded -module-name main -O %s -c -o %t/a.o
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// RUN: %target-clang %target-clang-resource-dir-opt %t/a.o -o %t/a.out -dead_strip
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// RUN: %llvm-nm --defined-only --format=just-symbols --demangle %t/a.out | sort | %FileCheck %s --check-prefix=CHECK-NM
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// RUN: %target-run %t/a.out | %FileCheck %s
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// REQUIRES: swift_in_compiler
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// REQUIRES: executable_test
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// REQUIRES: swift_feature_Embedded
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public func a_this_is_unused() { }
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@used
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public func b_this_is_unused_but_explicitly_retained() { }
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// CHECK-IR: define {{.*}}@"$e4main16a_this_is_unusedyyF"()
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// CHECK-IR: define {{.*}}@"$e4main40b_this_is_unused_but_explicitly_retainedyyF"()
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// CHECK-NM-NOT: $e4main14this_is_unusedyyF
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// CHECK-NM: $e4main40b_this_is_unused_but_explicitly_retainedyyF
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print("Hello")
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// CHECK: Hello
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