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[Interop][SwiftToCxx] Implement enum case switching

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This commit is contained in:
Tongjie Wang
2022-06-28 02:07:49 -07:00
parent 2c425f0173
commit 7ebcb7b33a
8 changed files with 645 additions and 28 deletions
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40
lib/PrintAsClang/PrintSwiftToClangCoreScaffold.cpp
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@@ -62,11 +62,12 @@ static void printKnownType(
printKnownStruct(typeMapping, os, name, typeRecord);
}
static void printValueWitnessTableFunctionType(raw_ostream &os, StringRef name,
StringRef returnType,
std::string paramTypes,
uint16_t ptrauthDisc) {
os << "using ValueWitness" << name << "Ty = " << returnType
static void
printValueWitnessTableFunctionType(raw_ostream &os, StringRef prefix,
StringRef name, StringRef returnType,
std::string paramTypes,
uint16_t ptrauthDisc) {
os << "using " << prefix << name << "Ty = " << returnType
<< "(* __ptrauth_swift_value_witness_function_pointer(" << ptrauthDisc
<< "))(" << paramTypes << ");\n";
}
@@ -87,7 +88,7 @@ static void printValueWitnessTable(raw_ostream &os) {
membersOS << " " << type << " " << #lowerId << ";\n";
#define FUNCTION_VALUE_WITNESS(lowerId, upperId, returnType, paramTypes) \
printValueWitnessTableFunctionType( \
os, #upperId, returnType, makeParams paramTypes, \
os, "ValueWitness", #upperId, returnType, makeParams paramTypes, \
SpecialPointerAuthDiscriminators::upperId); \
membersOS << " ValueWitness" << #upperId << "Ty _Nonnull " << #lowerId \
<< ";\n";
@@ -102,7 +103,32 @@ static void printValueWitnessTable(raw_ostream &os) {
#define VOID_TYPE "void"
#include "swift/ABI/ValueWitness.def"
os << "\nstruct ValueWitnessTable {\n" << membersOS.str() << "};\n";
os << "\nstruct ValueWitnessTable {\n" << membersOS.str() << "};\n\n";
membersOS.str().clear();
#define WANT_ONLY_ENUM_VALUE_WITNESSES
#define DATA_VALUE_WITNESS(lowerId, upperId, type) \
membersOS << " " << type << " " << #lowerId << ";\n";
#define FUNCTION_VALUE_WITNESS(lowerId, upperId, returnType, paramTypes) \
printValueWitnessTableFunctionType( \
os, "EnumValueWitness", #upperId, returnType, makeParams paramTypes, \
SpecialPointerAuthDiscriminators::upperId); \
membersOS << " EnumValueWitness" << #upperId << "Ty _Nonnull " << #lowerId \
<< ";\n";
#define MUTABLE_VALUE_TYPE "void * _Nonnull"
#define IMMUTABLE_VALUE_TYPE "const void * _Nonnull"
#define MUTABLE_BUFFER_TYPE "void * _Nonnull"
#define IMMUTABLE_BUFFER_TYPE "const void * _Nonnull"
#define TYPE_TYPE "void * _Nonnull"
#define SIZE_TYPE "size_t"
#define INT_TYPE "int"
#define UINT_TYPE "unsigned"
#define VOID_TYPE "void"
#include "swift/ABI/ValueWitness.def"
os << "\nstruct EnumValueWitnessTable {\n"
<< " ValueWitnessTable vwTable;\n"
<< membersOS.str() << "};\n\n";
}
static void printTypeMetadataResponseType(SwiftToClangInteropContext &ctx,