function Parser::parseDirectivePrologues

Parse directive prologues. The result is an array where the first element is the array of parsed nodes and the second element is the array of directive prologues values

Return value

array|null

1 call to Parser::parseDirectivePrologues()

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

Parses a statement list

File

vendor/mck89/peast/lib/Peast/Syntax/Parser.php, line 3960

Class

Parser

Parser class

Namespace

Peast\Syntax

Code

protected function parseDirectivePrologues() {
    $directives = $nodes = array();
    while (($token = $this->scanner
        ->getToken()) && $token->type === Token::TYPE_STRING_LITERAL) {
        $directive = substr($token->value, 1, -1);
        if ($directive === "use strict") {
            $directives[] = $directive;
            $directiveNode = $this->parseStringLiteral();
            $this->assertEndOfStatement();
            $node = $this->createNode("ExpressionStatement", $directiveNode);
            $node->setExpression($directiveNode);
            $nodes[] = $this->completeNode($node);
        }
        else {
            break;
        }
    }
    return count($nodes) ? array(
        $nodes,
        $directives,
    ) : null;
}