// 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 SwiftTreeSitter
import TreeSitterExtensions
import TreeSitterP4

public protocol CompilableValue {
  static func CompileValue(withValue value: String) -> Result<P4DataValue>
}

public protocol MaybeCompilableType {
  static func MaybeCompileType(
    type: SwiftTreeSitter.Node, withContext: ASTCompilerContext
  ) -> Result<AST.Tipe?>
}

public protocol CompilableType {
  static func CompileType(
    type: SwiftTreeSitter.Node, withContext: ASTCompilerContext
  ) -> Result<AST.Tipe>
}
public protocol CompilableExpression {
  static func CompileExpression(
    node: Node, withContext context: ASTCompilerContext
  ) -> Result<AST.AnExpression>
}

public protocol Compilable<C> {
  associatedtype C
  static func Compile(
    node: Node, withContext context: ASTCompilerContext
  ) -> Result<C>
}

public protocol CompilableStatement {
  static func CompileStatement(
    node: Node, withContext context: ASTCompilerContext
  ) -> Result<AST.AnStatement>
}

public protocol ASTVisitor<T> {
  associatedtype T
  func visit(node: AST.BinaryOperatorExpression, driver: ASTVisitorDriver, context: T) -> Result<T>
  func visit(node: AST.Literal, driver: ASTVisitorDriver, context: T) -> Result<T>
  func visit(node: AST.Identifier, driver: ASTVisitorDriver, context: T) -> Result<T>

  func visit(node: AST.Parser, driver: ASTVisitorDriver, context: T) -> Result<T>
  func visit(node: AST.ParserStateDirectTransition, driver: ASTVisitorDriver, context: T) -> Result<T>
  func visit(node: AST.ParserStateNoTransition, driver: ASTVisitorDriver, context: T) -> Result<T>
  func visit(node: AST.ParserStateSelectTransition, driver: ASTVisitorDriver, context: T) -> Result<T>
}