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//===--- Bridging/GenericsBridging.cpp ------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2022-2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "swift/AST/ASTBridging.h"
#include "swift/AST/ASTContext.h"
#include "swift/AST/GenericParamList.h"
#include "swift/AST/Identifier.h"
#include "swift/AST/Initializer.h"
#include "swift/Basic/Assertions.h"
using namespace swift;
//===----------------------------------------------------------------------===//
// MARK: Generics
//===----------------------------------------------------------------------===//
BridgedGenericParamList BridgedGenericParamList_createParsed(
BridgedASTContext cContext, BridgedSourceLoc cLeftAngleLoc,
BridgedArrayRef cParameters,
BridgedNullableTrailingWhereClause bridgedGenericWhereClause,
BridgedSourceLoc cRightAngleLoc) {
SourceLoc whereLoc;
ArrayRef<RequirementRepr> requirements;
if (auto *genericWhereClause = bridgedGenericWhereClause.unbridged()) {
whereLoc = genericWhereClause->getWhereLoc();
requirements = genericWhereClause->getRequirements();
}
return GenericParamList::create(
cContext.unbridged(), cLeftAngleLoc.unbridged(),
cParameters.unbridged<GenericTypeParamDecl *>(), whereLoc, requirements,
cRightAngleLoc.unbridged());
}
BridgedGenericTypeParamDecl BridgedGenericTypeParamDecl_createParsed(
BridgedASTContext cContext, BridgedDeclContext cDeclContext,
BridgedSourceLoc cSpecifierLoc, BridgedIdentifier cName,
BridgedSourceLoc cNameLoc, BridgedNullableTypeRepr bridgedInheritedType,
size_t index, BridgedGenericTypeParamKind cParamKind) {
auto specifierLoc = cSpecifierLoc.unbridged();
GenericTypeParamKind paramKind;
switch (cParamKind) {
case BridgedGenericTypeParamKindType:
paramKind = GenericTypeParamKind::Type;
break;
case BridgedGenericTypeParamKindPack:
paramKind = GenericTypeParamKind::Pack;
break;
case BridgedGenericTypeParamKindValue:
paramKind = GenericTypeParamKind::Value;
break;
}
auto *decl = GenericTypeParamDecl::createParsed(
cDeclContext.unbridged(), cName.unbridged(), cNameLoc.unbridged(),
specifierLoc, index, paramKind);
if (auto *inheritedType = bridgedInheritedType.unbridged()) {
auto entry = InheritedEntry(inheritedType);
ASTContext &context = cContext.unbridged();
decl->setInherited(context.AllocateCopy(llvm::ArrayRef(entry)));
}
return decl;
}
BridgedTrailingWhereClause
BridgedTrailingWhereClause_createParsed(BridgedASTContext cContext,
BridgedSourceLoc cWhereKeywordLoc,
BridgedArrayRef cRequirements) {
SmallVector<RequirementRepr> requirements;
for (auto &cReq : cRequirements.unbridged<BridgedRequirementRepr>())
requirements.push_back(cReq.unbridged());
SourceLoc whereKeywordLoc = cWhereKeywordLoc.unbridged();
SourceLoc endLoc;
if (requirements.empty()) {
endLoc = whereKeywordLoc;
} else {
endLoc = requirements.back().getSourceRange().End;
}
return TrailingWhereClause::create(cContext.unbridged(), whereKeywordLoc,
endLoc, requirements);
}
RequirementRepr BridgedRequirementRepr::unbridged() const {
switch (Kind) {
case BridgedRequirementReprKindTypeConstraint:
return RequirementRepr::getTypeConstraint(
FirstType.unbridged(), SeparatorLoc.unbridged(), SecondType.unbridged(),
IsExpansionPattern);
case BridgedRequirementReprKindSameType:
return RequirementRepr::getSameType(
FirstType.unbridged(), SeparatorLoc.unbridged(), SecondType.unbridged(),
IsExpansionPattern);
case BridgedRequirementReprKindLayoutConstraint:
return RequirementRepr::getLayoutConstraint(
FirstType.unbridged(), SeparatorLoc.unbridged(),
{LayoutConstraint.unbridged(), LayoutConstraintLoc.unbridged()},
IsExpansionPattern);
}
}
BridgedRequirementRepr BridgedRequirementRepr_createTypeConstraint(
BridgedTypeRepr cSubject, BridgedSourceLoc cColonLoc,
BridgedTypeRepr cConstraint, bool isExpansionPattern) {
return {
/*SeparatorLoc=*/cColonLoc,
/*Kind=*/BridgedRequirementReprKindTypeConstraint,
/*FirstType=*/cSubject,
/*SecondType=*/cConstraint.unbridged(),
/*LayoutConstraint=*/{},
/*LayoutConstraintLoc=*/{},
/*IsExpansionPattern=*/isExpansionPattern,
};
}
BridgedRequirementRepr BridgedRequirementRepr_createSameType(
BridgedTypeRepr cFirstType, BridgedSourceLoc cEqualLoc,
BridgedTypeRepr cSecondType, bool isExpansionPattern) {
return {
/*SeparatorLoc=*/cEqualLoc,
/*Kind=*/BridgedRequirementReprKindSameType,
/*FirstType=*/cFirstType,
/*SecondType=*/cSecondType.unbridged(),
/*LayoutConstraint=*/{},
/*LayoutConstraintLoc=*/{},
/*IsExpansionPattern=*/isExpansionPattern,
};
}
BridgedRequirementRepr BridgedRequirementRepr_createLayoutConstraint(
BridgedTypeRepr cSubject, BridgedSourceLoc cColonLoc,
BridgedLayoutConstraint cLayout, BridgedSourceLoc cLayoutLoc,
bool isExpansionPattern) {
return {
/*SeparatorLoc=*/cColonLoc,
/*Kind=*/BridgedRequirementReprKindLayoutConstraint,
/*FirstType=*/cSubject,
/*SecondType=*/nullptr,
/*LayoutConstraint=*/cLayout,
/*LayoutConstraintLoc=*/cLayoutLoc,
/*IsExpansionPattern=*/isExpansionPattern,
};
}
static swift::LayoutConstraintKind
unbridged(BridgedLayoutConstraintKind cKind) {
switch (cKind) {
#define CASE(Kind) \
case BridgedLayoutConstraintKind##Kind: \
return swift::LayoutConstraintKind::Kind;
CASE(UnknownLayout)
CASE(TrivialOfExactSize)
CASE(TrivialOfAtMostSize)
CASE(Trivial)
CASE(Class)
CASE(NativeClass)
CASE(RefCountedObject)
CASE(NativeRefCountedObject)
CASE(BridgeObject)
CASE(TrivialStride)
#undef CASE
}
}
static BridgedLayoutConstraintKind bridge(swift::LayoutConstraintKind kind) {
switch (kind) {
#define CASE(Kind) \
case swift::LayoutConstraintKind::Kind: \
return BridgedLayoutConstraintKind##Kind;
CASE(UnknownLayout)
CASE(TrivialOfExactSize)
CASE(TrivialOfAtMostSize)
CASE(Trivial)
CASE(Class)
CASE(NativeClass)
CASE(RefCountedObject)
CASE(NativeRefCountedObject)
CASE(BridgeObject)
CASE(TrivialStride)
#undef CASE
}
}
BridgedLayoutConstraint
BridgedLayoutConstraint_getLayoutConstraint(BridgedASTContext cContext,
BridgedIdentifier cID) {
return swift::getLayoutConstraint(cID.unbridged(), cContext.unbridged());
}
BridgedLayoutConstraint
BridgedLayoutConstraint_getLayoutConstraint(BridgedASTContext cContext,
BridgedLayoutConstraintKind cKind) {
return LayoutConstraint::getLayoutConstraint(unbridged(cKind),
cContext.unbridged());
}
BridgedLayoutConstraint
BridgedLayoutConstraint_getLayoutConstraint(BridgedASTContext cContext,
BridgedLayoutConstraintKind cKind,
size_t size, size_t alignment) {
return LayoutConstraint::getLayoutConstraint(unbridged(cKind), size,
alignment, cContext.unbridged());
}
BridgedLayoutConstraint BridgedLayoutConstraint_getUnknownLayout() {
return LayoutConstraint::getUnknownLayout();
}
BridgedLayoutConstraintKind
BridgedLayoutConstraint_getKind(BridgedLayoutConstraint cConstraint) {
return bridge(cConstraint.unbridged()->getKind());
}
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