Start Rewrite

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>

Tests/p4rseTests/CodeGenTests/Serializer.swift

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+// p4rse, Copyright 2026, Will Hawkins
+//
+// This file is part of p4rse.
+//
+// This file is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import Common
+import Foundation
+import Macros
+import SwiftTreeSitter
+import Testing
+import TreeSitter
+import TreeSitterP4
+import P4CodeGen
+
+@testable import P4Compiler
+
+@Test func test_text_serializer() async throws {
+  let simple_parser_declaration = """
+    parser main_parser(inout int x) {
+       state start {
+           true;
+           transition accept;
+       }
+       state start {
+          transition select (true) {
+            true: accept;
+            false: reject;
+          };
+       }
+    };
+    """
+
+  let program = try #UseOkResult(SpecialCompilers.ProgramCompiler.Compile(simple_parser_declaration))
+  let v = TextSerializer()
+  let c = TextSerializerContext();
+  let vd = ASTVisitorDriver();
+  #expect(#RequireOkResult((vd.visit(program: program, visitor: v, context: c))))
+}