Function parseTopLevel

packages/babel-parser/src/parser/statement.ts:83–100

(
    this: Parser,
    file: Undone<N.File>,
    program: Undone<N.Program>,
  )

  // to its body instead of creating a new node.

  parseTopLevel(
    this: Parser,
    file: Undone<N.File>,
    program: Undone<N.Program>,
  ): N.File {
    file.program = this.parseProgram(
      program,
      tt.eof,
      this.options.sourceType === "module" ? "module" : "script",
    );
    file.comments = this.comments;

    if (this.optionFlags & OptionFlags.Tokens) {
      file.tokens = createExportedTokens(this.tokens);
    }

    return this.finishNode(file, "File");
  }

  parseProgram(
    this: Parser,