Function parseMethod

packages/babel-parser/src/parser/expression.ts:2363–2388

(
    this: Parser,
    node: Undone<T>,
    isGenerator: boolean,
    isAsync: boolean,
    isConstructor: boolean,
    allowDirectSuper: boolean,
    type: T["type"],
    inClassScope: boolean = false,
  )

  // Parse object or class method.

  parseMethod<T extends N.ObjectMethod | N.ClassMethod | N.ClassPrivateMethod>(
    this: Parser,
    node: Undone<T>,
    isGenerator: boolean,
    isAsync: boolean,
    isConstructor: boolean,
    allowDirectSuper: boolean,
    type: T["type"],
    inClassScope: boolean = false,
  ): T {
    this.initFunction(node, isAsync);
    node.generator = isGenerator;
    this.scope.enter(
      ScopeFlag.FUNCTION |
        ScopeFlag.SUPER |
        (inClassScope ? ScopeFlag.CLASS : 0) |
        (allowDirectSuper ? ScopeFlag.DIRECT_SUPER : 0),
    );
    this.prodParam.enter(functionFlags(isAsync, node.generator));
    this.parseFunctionParams(node, isConstructor);
    const finishedNode = this.parseFunctionBodyAndFinish(node, type, true);
    this.prodParam.exit();
    this.scope.exit();

    return finishedNode;
  }

  // parse an array literal
  // https://tc39.es/ecma262/#prod-ArrayLiteral