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This configuration clause will suppress lex diagnostics and skip parsing
altogether if the code under the clause isn't active - the compiler must
have a repository version greater than or equal to the version given to
_compiler_version.
This option is only meant to be used sparingly and not to track the
Swift *language* version.
Example, if using a compiler versioned 700.0.28:
#if _compiler_version("700.0.23")
print("This code will compile for versions 700.0.23 and later.")
#else
This + code + will + not + be + parsed
#endif
Included are new diagnostics for checking that the version is formatted
correctly and isn't empty.
New tests:
- Compiler version comparison unit tests
- Build configuration diagnostics
- Skipping parsing of code under inactive clauses
rdar://problem/22730282
Swift SVN r32195
23 lines
727 B
C++
23 lines
727 B
C++
#include "swift/Basic/SourceLoc.h"
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#include "swift/Basic/Version.h"
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#include "gtest/gtest.h"
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using namespace swift;
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using namespace llvm;
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class CompilerVersionTest : public ::testing::Test {};
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version::CompilerVersion CV(const char *VersionString) {
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return version::CompilerVersion(VersionString, SourceLoc(), nullptr);
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}
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TEST_F(CompilerVersionTest, VersionComparison) {
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EXPECT_GE(CV("700"), CV("602"));
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EXPECT_GE(CV("700.0"), CV("700.1"));
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EXPECT_GE(CV("700.0.1"), CV("700.1.0"));
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EXPECT_GE(CV("700.8.23"), CV("700.0.21"));
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EXPECT_GE(CV("700.0.1.1.0"), CV("700.0.1.1"));
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EXPECT_GE(version::CompilerVersion(), version::CompilerVersion());
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EXPECT_GE(version::CompilerVersion(), CV("999.999.999.999.999"));
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}
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