function Parser::parseFormalParameterList

Parses a parameter list

Return value

Node\Node[]|null

1 call to Parser::parseFormalParameterList()

Parser::parseArrowParameters in vendor/mck89/peast/lib/Peast/Syntax/Parser.php

Parses parameters in an arrow function. If the parameters are wrapped in round brackets, the returned value is an array where the first element is the parameters list and the second element is the open round brackets, this is needed to know the start…

File

vendor/mck89/peast/lib/Peast/Syntax/Parser.php, line 1594

Class

Parser

Parser class

Namespace

Peast\Syntax

Code

protected function parseFormalParameterList() {
    $hasComma = false;
    $list = array();
    while (($param = $this->parseBindingRestElement()) || ($param = $this->parseBindingElement())) {
        $hasComma = false;
        $list[] = $param;
        if ($param->getType() === "RestElement") {
            break;
        }
        elseif ($this->scanner
            ->consume(",")) {
            $hasComma = true;
        }
        else {
            break;
        }
    }
    
    //Check if it ends with a comma, then check if the comma is a trailing comma,
    
    //in that case throw an error if the trailing comma feature is not enabled
    if ($hasComma && !$this->features->trailingCommaFunctionCallDeclaration) {
        $token = $this->scanner
            ->getToken();
        if ($token && $token->value === ")") {
            $this->error();
        }
    }
    return $list;
}