SIL: add Context.getTupleType

Author: eeckstein

SwiftCompilerSources/Sources/SIL/Context.swift

@@ -48,6 +48,13 @@ extension Context {
 
   public func getBuiltinIntegerType(bitWidth: Int) -> Type { _bridged.getBuiltinIntegerType(bitWidth).type }
 
+  public func getTupleType(elements: [Type]) -> AST.`Type` {
+    let bridgedElements = elements.map { $0.bridged }
+    return bridgedElements.withBridgedArrayRef {
+      AST.`Type`(bridged: _bridged.getTupleType($0))
+    }
+  }
+
   public var swiftArrayDecl: NominalTypeDecl {
     _bridged.getSwiftArrayDecl().getAs(NominalTypeDecl.self)
   }

include/swift/SIL/SILBridging.h

@@ -1425,6 +1425,7 @@ struct BridgedContext {
   SWIFT_IMPORT_UNSAFE OptionalBridgedFunction lookUpNominalDeinitFunction(BridgedDeclObj nominal) const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedSubstitutionMap getContextSubstitutionMap(BridgedType type) const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedType getBuiltinIntegerType(SwiftInt bitWidth) const;
+  SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedASTType getTupleType(BridgedArrayRef elementTypes) const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedDeclObj getSwiftArrayDecl() const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedDeclObj getSwiftMutableSpanDecl() const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedValue getSILUndef(BridgedType type) const;

include/swift/SIL/SILBridgingImpl.h

@@ -2847,6 +2847,14 @@ BridgedType BridgedContext::getBuiltinIntegerType(SwiftInt bitWidth) const {
   return swift::SILType::getBuiltinIntegerType(bitWidth, context->getModule()->getASTContext());
 }
 
+BridgedASTType BridgedContext::getTupleType(BridgedArrayRef elementTypes) const {
+  llvm::SmallVector<swift::TupleTypeElt, 8> elements;
+  for (auto bridgedElmtTy :  elementTypes.unbridged<BridgedASTType>()) {
+    elements.push_back(bridgedElmtTy.unbridged());
+  }
+  return {swift::TupleType::get(elements, context->getModule()->getASTContext())};
+}
+
 BridgedDeclObj BridgedContext::getSwiftArrayDecl() const {
   return {context->getModule()->getASTContext().getArrayDecl()};
 }