示例#1
0
function parseUseDeclaration(Source $s, $pos, array &$aliases, $prefix = '', $type = 'class')
{
    $lastPart = null;
    $whole = $prefix;
    while (true) {
        switch ($s->tokens[$pos][Source::TYPE_OFFSET]) {
            case T_FUNCTION:
                $type = 'function';
                break;
            case T_CONST:
                $type = 'const';
                break;
            case T_NS_SEPARATOR:
                if (!empty($whole)) {
                    $whole .= '\\';
                }
                break;
            case T_STRING:
                $lastPart = $s->tokens[$pos][Source::STRING_OFFSET];
                $whole .= $lastPart;
                break;
            case T_AS:
                $pos = $s->skip(Source::junk(), $pos);
                $aliases[$type][$s->tokens[$pos][Source::STRING_OFFSET]] = $whole;
                $lastPart = null;
                $whole = $prefix;
                break;
            case ',':
                if ($lastPart !== null) {
                    $aliases[$type][$lastPart] = $whole;
                }
                $lastPart = null;
                $whole = $prefix;
                $type = 'class';
                break;
            case Generic\LEFT_CURLY:
                parseUseDeclaration($s, $pos, $aliases, $prefix . '\\', $type);
                break;
            case T_WHITESPACE:
            case T_COMMENT:
            case T_DOC_COMMENT:
                break;
            default:
                if ($lastPart !== null) {
                    $aliases[$type][$whole] = $lastPart;
                }
                return;
        }
        $pos++;
    }
}
function spliceDynamicCallsWithin(Source $s, $first, $last)
{
    $pos = $first;
    $anchor = INF;
    $suppress = false;
    while ($pos <= $last) {
        switch ($s->tokens[$pos][Source::TYPE_OFFSET]) {
            case '$':
            case T_VARIABLE:
                $anchor = min($pos, $anchor);
                break;
            case Generic\LEFT_ROUND:
                if ($anchor !== INF && !$suppress) {
                    $callable = $s->read($anchor, $pos - $anchor);
                    $arguments = $s->read($pos + 1, $s->match($pos) - $pos - 1);
                    $pos = $s->match($pos);
                    $replacement = sprintf(DYNAMIC_CALL_REPLACEMENT, $callable, $arguments);
                    $s->splice($replacement, $anchor, $pos - $anchor + 1);
                }
                break;
            case Generic\LEFT_SQUARE:
            case Generic\LEFT_CURLY:
                spliceDynamicCallsWithin($s, $pos + 1, $s->match($pos) - 1);
                $pos = $s->match($pos);
                break;
            case T_WHITESPACE:
            case T_COMMENT:
            case T_DOC_COMMENT:
                break;
            case T_OBJECT_OPERATOR:
            case T_DOUBLE_COLON:
            case T_NEW:
                $suppress = true;
                break;
            default:
                $suppress = false;
                $anchor = INF;
        }
        $pos++;
    }
}