private function parseStringLiteralExpression2()

in src/Parser.php [1315:1350]
32 lines of code
9 McCabe index (conditional complexity)

    private function parseStringLiteralExpression2($parentNode) {
        // TODO validate input token
        $expression = new StringLiteral();
        $expression->parent = $parentNode;
        $expression->startQuote = $this->eat(TokenKind::SingleQuoteToken, TokenKind::DoubleQuoteToken, TokenKind::HeredocStart, TokenKind::BacktickToken);
        $expression->children = [];

        while (true) {
            switch ($this->getCurrentToken()->kind) {
                case TokenKind::DollarOpenBraceToken:
                case TokenKind::OpenBraceDollarToken:
                    $expression->children[] = $this->eat(TokenKind::DollarOpenBraceToken, TokenKind::OpenBraceDollarToken);
                    // TODO: Reject ${var->prop} and ${(var->prop)} without rejecting ${var+otherVar}
                    // Currently, this fails to reject ${var->prop} (because `var` has TokenKind::Name instead of StringVarname)
                    if ($this->getCurrentToken()->kind === TokenKind::StringVarname) {
                        $expression->children[] = $this->parseComplexDollarTemplateStringExpression($expression);
                    } else {
                        $expression->children[] = $this->parseExpression($expression);
                    }
                    $expression->children[] = $this->eat1(TokenKind::CloseBraceToken);
                    break;
                case $startQuoteKind = $expression->startQuote->kind:
                case TokenKind::EndOfFileToken:
                case TokenKind::HeredocEnd:
                    $expression->endQuote = $this->eat($startQuoteKind, TokenKind::HeredocEnd);
                    return $expression;
                case TokenKind::VariableName:
                    $expression->children[] = $this->parseTemplateStringExpression($expression);
                    break;
                default:
                    $expression->children[] = $this->getCurrentToken();
                    $this->advanceToken();
                    break;
            }
        }
    }