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SILGen: Support overriding/conforming to ObjC APIs with async error flag arguments.

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This commit is contained in:
Joe Groff
2021-02-22 18:08:00 -08:00
parent 4bb49ba521
commit fb199df1c7
5 changed files with 92 additions and 15 deletions
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19
lib/SILGen/SILGenFunction.cpp
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@@ -1071,3 +1071,22 @@ SILValue SILGenFunction::emitUnwrapIntegerResult(SILLocation loc,
return value;
}
SILValue SILGenFunction::emitWrapIntegerLiteral(SILLocation loc,
SILType ty,
unsigned value) {
// Create a builtin integer literal value.
if (auto intTy = ty.getAs<BuiltinIntegerType>()) {
return B.createIntegerLiteral(loc, ty, value);
}
// Or wrap a value in a struct, potentially multiple times to handle types
// that wrap integer types like ObjCBool (which may be Bool or Int8).
auto structDecl = ty.getStructOrBoundGenericStruct();
assert(structDecl && "value for error result wasn't of struct type!");
assert(structDecl->getStoredProperties().size() == 1);
auto property = structDecl->getStoredProperties()[0];
auto propertyTy = ty.getFieldType(property, SGM.Types, getTypeExpansionContext());
auto propertyValue = emitWrapIntegerLiteral(loc, propertyTy, value);
return B.createStruct(loc, ty, propertyValue);
}