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Serialization: Encode custom availability domains.

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When serializing `@available` attributes, if the attribute applies to a custom
domain include enough information to deserialize the reference to that domain.

Resolves rdar://138441265.
This commit is contained in:
Allan Shortlidge
2025-04-06 18:44:40 -07:00
parent 0a81283d34
commit 1cd636d9b3
15 changed files with 277 additions and 97 deletions
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49
lib/Serialization/ModuleFormat.h
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@@ -58,7 +58,7 @@ const uint16_t SWIFTMODULE_VERSION_MAJOR = 0;
/// describe what change you made. The content of this comment isn't important;
/// it just ensures a conflict if two people change the module format.
/// Don't worry about adhering to the 80-column limit for this line.
const uint16_t SWIFTMODULE_VERSION_MINOR = 933; // isConstantValue
const uint16_t SWIFTMODULE_VERSION_MINOR = 934; // custom AvailabilityDomains
/// A standard hash seed used for all string hashes in a serialized module.
///
@@ -759,6 +759,18 @@ using GenericParamKindField = BCFixed<2>;
X##_HasSubminor = Y.getSubminor().has_value();\
}
// These IDs must \em not be renumbered or reordered without incrementing
// the module version.
enum class AvailabilityDomainKind : uint8_t {
Universal = 0,
SwiftLanguage,
PackageDescription,
Embedded,
Platform,
Custom,
};
using AvailabilityDomainKindField = BCFixed<3>;
/// The various types of blocks that can occur within a serialized Swift
/// module.
///
@@ -1233,6 +1245,8 @@ namespace decls_block {
/// with a linker error.
#define TYPE_LAYOUT(LAYOUT, ...) TYPE_LAYOUT_IMPL(LAYOUT, __VA_ARGS__)
// clang-format off
using ClangTypeLayout = BCRecordLayout<
CLANG_TYPE,
BCArray<BCVBR<6>>
@@ -2390,22 +2404,21 @@ namespace decls_block {
DeclIDField // ABI decl
>;
using AvailableDeclAttrLayout = BCRecordLayout<
Available_DECL_ATTR,
BCFixed<1>, // implicit flag
BCFixed<1>, // is unconditionally unavailable?
BCFixed<1>, // is unconditionally deprecated?
BCFixed<1>, // is unavailable from async?
BCFixed<1>, // is this PackageDescription version-specific kind?
BCFixed<1>, // is SPI?
BCFixed<1>, // is for Embedded
BC_AVAIL_TUPLE, // Introduced
BC_AVAIL_TUPLE, // Deprecated
BC_AVAIL_TUPLE, // Obsoleted
BCVBR<5>, // platform
BCVBR<5>, // number of bytes in message string
BCVBR<5>, // number of bytes in rename string
BCBlob // message, followed by rename
using AvailableDeclAttrLayout = BCRecordLayout<Available_DECL_ATTR,
BCFixed<1>, // implicit flag
BCFixed<1>, // is unconditionally unavailable?
BCFixed<1>, // is unconditionally deprecated?
BCFixed<1>, // is unavailable from async?
BCFixed<1>, // is SPI?
AvailabilityDomainKindField, // kind of availability domain
BCVBR<5>, // platform kind of domain
DeclIDField, // the decl representing a custom domain
BC_AVAIL_TUPLE, // introduced version
BC_AVAIL_TUPLE, // deprecated version
BC_AVAIL_TUPLE, // obsoleted version
BCVBR<5>, // number of bytes in message string
BCVBR<5>, // number of bytes in rename string
BCBlob // message, followed by rename
>;
using OriginallyDefinedInDeclAttrLayout = BCRecordLayout<
@@ -2571,6 +2584,8 @@ namespace decls_block {
BCArray<BCFixed<1>> // concatenated param indices
>;
// clang-format on
#undef SYNTAX_SUGAR_TYPE_LAYOUT
#undef TYPE_LAYOUT
#undef TYPE_LAYOUT_IMPL