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Add a build flag to disable building Unicode support

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This commit is contained in:
David Smith
2021-12-21 17:23:22 -08:00
parent 09507f59cf
commit f1a5e27821
15 changed files with 119 additions and 2 deletions
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25
stdlib/public/stubs/Unicode/UnicodeNormalization.cpp
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@@ -10,12 +10,18 @@
//
//===----------------------------------------------------------------------===//
#if SWIFT_STDLIB_ENABLE_UNICODE_DATA
#if defined(__APPLE__)
#include "Apple/NormalizationData.h"
#else
#include "Common/NormalizationData.h"
#endif
#else
#include "swift/Runtime/Debug.h"
#endif
#include "../SwiftShims/UnicodeData.h"
#include <limits>
@@ -26,7 +32,10 @@ __swift_uint16_t _swift_stdlib_getNormData(__swift_uint32_t scalar) {
if (scalar < 0xC0) {
return 0;
}
#if !SWIFT_STDLIB_ENABLE_UNICODE_DATA
swift::swift_abortDisabledUnicodeSupport();
#else
auto dataIdx = _swift_stdlib_getScalarBitArrayIdx(scalar,
_swift_stdlib_normData,
_swift_stdlib_normData_ranks);
@@ -39,13 +48,22 @@ __swift_uint16_t _swift_stdlib_getNormData(__swift_uint32_t scalar) {
auto scalarDataIdx = _swift_stdlib_normData_data_indices[dataIdx];
return _swift_stdlib_normData_data[scalarDataIdx];
#endif
}
#if SWIFT_STDLIB_ENABLE_UNICODE_DATA
SWIFT_RUNTIME_STDLIB_INTERNAL
const __swift_uint8_t * const _swift_stdlib_nfd_decompositions = _swift_stdlib_nfd_decomp;
#else
SWIFT_RUNTIME_STDLIB_INTERNAL
const __swift_uint8_t * const _swift_stdlib_nfd_decompositions = nullptr;
#endif
SWIFT_RUNTIME_STDLIB_INTERNAL
__swift_uint32_t _swift_stdlib_getDecompositionEntry(__swift_uint32_t scalar) {
#if !SWIFT_STDLIB_ENABLE_UNICODE_DATA
swift::swift_abortDisabledUnicodeSupport();
#else
auto levelCount = NFD_DECOMP_LEVEL_COUNT;
__swift_intptr_t decompIdx = _swift_stdlib_getMphIdx(scalar, levelCount,
_swift_stdlib_nfd_decomp_keys,
@@ -53,11 +71,15 @@ __swift_uint32_t _swift_stdlib_getDecompositionEntry(__swift_uint32_t scalar) {
_swift_stdlib_nfd_decomp_sizes);
return _swift_stdlib_nfd_decomp_indices[decompIdx];
#endif
}
SWIFT_RUNTIME_STDLIB_INTERNAL
__swift_uint32_t _swift_stdlib_getComposition(__swift_uint32_t x,
__swift_uint32_t y) {
#if !SWIFT_STDLIB_ENABLE_UNICODE_DATA
swift::swift_abortDisabledUnicodeSupport();
#else
auto levelCount = NFC_COMP_LEVEL_COUNT;
__swift_intptr_t compIdx = _swift_stdlib_getMphIdx(y, levelCount,
_swift_stdlib_nfc_comp_keys,
@@ -113,4 +135,5 @@ __swift_uint32_t _swift_stdlib_getComposition(__swift_uint32_t x,
// array.
// Return the max here to indicate that we couldn't find one.
return std::numeric_limits<__swift_uint32_t>::max();
#endif
}