import type { Grammar, MatchResult } from 'ohm-js'

import type { Program } from './ast/nodes'
import { buildGrammar, buildAST } from './intermediate'

export function parse (
  input: string,
  grammar: Grammar | undefined = undefined,
): MatchResult {
  if (grammar === undefined) {
    grammar = buildGrammar()
  }

  return grammar.match(input)
}

export function ast (input: string): Program {
  return buildAST(input, buildGrammar())
}

export {NodeVisitor} from './ast/visit';

export {
  ASTRootBase,
  ASTBase,
  Program,
  Declaration,
  Constructor,
  Field,
  FieldBuiltinDef,
  FieldCurlyExprDef,
  FieldAnonymousDef,
  FieldNamedDef,
  FieldExprDef,
  Combinator,
  Expression,
  CondExpr,
  CompareExpr,
  CellRefExpr,
  BuiltinExpr,
  BuiltinOneArgExpr,
  BuiltinZeroArgs,
  CombinatorExpr,
  MathExpr,
  NegateExpr,
  RefExpr,
  NameExpr,
  NumberExpr,
  FieldDefinition,
  TypeExpr,
  SimpleExpr,
  Reference,
  FieldBuiltinType,
  CompareOperator,
  BuiltinOneArgOperators,
  BuiltinZeroArgsOperators,
  MathOperator,
} from './ast/nodes'