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84a1ffcb33
This replaces a number of `#include`-s like this:
```
#include "../../../stdlib/public/SwiftShims/Visibility.h"
```
with this:
```
#include "swift/shims/Visibility.h"
```
This is needed to allow SwiftCompilerSources to use C++ headers which include SwiftShims headers. Currently trying to do that results in errors:
```
swift/swift/include/swift/Demangling/../../../stdlib/public/SwiftShims/module.modulemap:1:8: error: redefinition of module 'SwiftShims'
module SwiftShims {
^
Builds.noindex/swift/swift/bootstrapping0/lib/swift/shims/module.modulemap:1:8: note: previously defined here
module SwiftShims {
^
```
This happens because the headers in both the source dir and the build dir refer to SwiftShims headers by relative path, and both the source root and the build root contain SwiftShims headers (which are equivalent, but since they are located in different dirs, Clang treats them as different modules).
86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2021 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#if SWIFT_STDLIB_ENABLE_UNICODE_DATA
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#include "Common/GraphemeData.h"
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#else
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#include "swift/Runtime/Debug.h"
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#endif
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#include "swift/shims/UnicodeData.h"
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#include <limits>
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SWIFT_RUNTIME_STDLIB_INTERNAL
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__swift_uint8_t _swift_stdlib_getGraphemeBreakProperty(__swift_uint32_t scalar) {
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#if !SWIFT_STDLIB_ENABLE_UNICODE_DATA
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swift::swift_abortDisabledUnicodeSupport();
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#else
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auto low = 0;
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auto high = GRAPHEME_BREAK_DATA_COUNT - 1;
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while (high >= low) {
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auto idx = low + (high - low) / 2;
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auto entry = _swift_stdlib_graphemeBreakProperties[idx];
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// Shift the enum and range count out of the value.
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auto lower = (entry << 11) >> 11;
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// Shift the enum out first, then shift out the scalar value.
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auto upper = lower + ((entry << 3) >> 24);
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// Shift everything out.
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auto enumValue = (__swift_uint8_t)(entry >> 29);
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// Special case: extendedPictographic who used an extra bit for the range.
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if (enumValue == 5) {
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upper = lower + ((entry << 2) >> 23);
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}
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if (scalar >= lower && scalar <= upper) {
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return enumValue;
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}
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if (scalar > upper) {
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low = idx + 1;
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continue;
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}
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if (scalar < lower) {
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high = idx - 1;
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continue;
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}
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}
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// If we made it out here, then our scalar was not found in the grapheme
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// array (this occurs when a scalar doesn't map to any grapheme break
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// property). Return the max value here to indicate .any.
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return 0xFF;
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#endif
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}
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SWIFT_RUNTIME_STDLIB_INTERNAL
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__swift_bool _swift_stdlib_isLinkingConsonant(__swift_uint32_t scalar) {
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#if !SWIFT_STDLIB_ENABLE_UNICODE_DATA
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swift::swift_abortDisabledUnicodeSupport();
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#else
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auto idx = _swift_stdlib_getScalarBitArrayIdx(scalar,
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_swift_stdlib_linkingConsonant,
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_swift_stdlib_linkingConsonant_ranks);
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if (idx == std::numeric_limits<__swift_intptr_t>::max()) {
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return false;
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}
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return true;
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#endif
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}
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