Method parseParametersWorker

internal/parser/parser.go:3287–3314

(flags ParseFlags, allowAmbiguity bool)

}

func (p *Parser) parseParametersWorker(flags ParseFlags, allowAmbiguity bool) *ast.NodeList {
	// FormalParameters [Yield,Await]: (modified)
	//      [empty]
	//      FormalParameterList[?Yield,Await]
	//
	// FormalParameter[Yield,Await]: (modified)
	//      BindingElement[?Yield,Await]
	//
	// BindingElement [Yield,Await]: (modified)
	//      SingleNameBinding[?Yield,?Await]
	//      BindingPattern[?Yield,?Await]Initializer [In, ?Yield,?Await] opt
	//
	// SingleNameBinding [Yield,Await]:
	//      BindingIdentifier[?Yield,?Await]Initializer [In, ?Yield,?Await] opt
	inAwaitContext := p.contextFlags&ast.NodeFlagsAwaitContext != 0
	saveContextFlags := p.contextFlags
	p.setContextFlags(ast.NodeFlagsYieldContext, flags&ParseFlagsYield != 0)
	p.setContextFlags(ast.NodeFlagsAwaitContext, flags&ParseFlagsAwait != 0)
	parameters := p.parseDelimitedList(PCParameters, func(p *Parser) *ast.Node {
		parameter := p.parseParameterEx(inAwaitContext, allowAmbiguity)
		if parameter != nil && flags&ParseFlagsType == 0 {
			p.checkJSSyntax(parameter)
		}
		return parameter
	})
	p.contextFlags = saveContextFlags
	return parameters
}

func (p *Parser) parseParameter() *ast.Node {
	return p.parseParameterEx(false /*inOuterAwaitContext*/, true /*allowAmbiguity*/)