Add BuilderInitializableTypes to syntax builder generation

Author: fwcd

Package.swift

@@ -104,6 +104,7 @@ let package = Package(
           "gyb_helpers",
           "AttributeNodes.swift.gyb",
           "AvailabilityNodes.swift.gyb",
+          "BuilderInitializableTypes.swift.gyb",
           "Classification.swift.gyb",
           "CommonNodes.swift.gyb",
           "DeclNodes.swift.gyb",

Sources/SwiftSyntaxBuilderGeneration/BuilderInitializableTypes.swift.gyb

@@ -0,0 +1,25 @@
+%{
+  from gyb_syntax_support import *
+  from gyb_helpers import BUILDER_INITIALIZABLE_TYPES
+  # -*- mode: Swift -*-
+  # Ignore the following admonition; it applies to the resulting .swift file only
+}%
+//// Automatically Generated From BuilderInitializableTypes.swift.gyb.
+//// Do Not Edit Directly!
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2022 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
+//
+//===----------------------------------------------------------------------===//
+
+let BUILDER_INITIALIZABLE_TYPES: [String: String?] = [
+% for type, resolved_type in BUILDER_INITIALIZABLE_TYPES.items():
+  "${type}": ${'"' + resolved_type + '"' if resolved_type is not None else 'nil'},
+% end
+]

Sources/SwiftSyntaxBuilderGeneration/gyb_generated/BuilderInitializableTypes.swift

@@ -0,0 +1,33 @@
+//// Automatically Generated From BuilderInitializableTypes.swift.gyb.
+//// Do Not Edit Directly!
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2022 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
+//
+//===----------------------------------------------------------------------===//
+
+let BUILDER_INITIALIZABLE_TYPES: [String: String?] = [
+  "CodeBlock": "CodeBlockItemList",
+  "MemberDeclBlock": "MemberDeclList",
+  "CodeBlockItemList": nil,
+  "MemberDeclList": nil,
+  "PatternBindingList": nil,
+  "SwitchCaseList": nil,
+  "ArrayElementList": nil,
+  "TupleExprElementList": nil,
+  "EnumCaseElementList": nil,
+  "FunctionParameterList": nil,
+  "GenericParameterList": nil,
+  "GenericRequirementList": nil,
+  "InheritedTypeList": nil,
+  "ClosureCaptureItemList": nil,
+  "CaseItemList": nil,
+  "GenericArgumentList": nil,
+  "TuplePatternElementList": nil,
+]

Sources/SwiftSyntaxBuilderGeneration/gyb_helpers/BuilderInitializableTypes.py

@@ -0,0 +1 @@
+../../SwiftSyntaxBuilder/gyb_helpers/BuilderInitializableTypes.py

Sources/SwiftSyntaxBuilderGeneration/gyb_helpers/__init__.py

@@ -1,2 +1,3 @@
 from .utils import make_swift_child, make_swift_node
+from .BuilderInitializableTypes import BUILDER_INITIALIZABLE_TYPES
 from .ExpressibleAsConformances import SYNTAX_BUILDABLE_EXPRESSIBLE_AS_CONFORMANCES