public function parse(Grammar $grammar, Token $token)
{
$tag = $token->getTag();
switch ($tag) {
case Tag::T_ATOM:
return new AtomExpr($grammar->parser->resolveScope($token->getPointer()));
case Tag::T_STRING:
return new StringExpr($grammar->parser->resolveScope($token->getPointer()), $token->metadata['delimiter']);
case Tag::T_DOUBLE:
case Tag::T_INTEGER:
return new NumberExpr($grammar->parser->resolveScope($token->getPointer()), $tag === Tag::T_DOUBLE ? 'double' : 'int');
case Tag::T_NIL:
return new NilExpr();
case Tag::T_TRUE:
case Tag::T_FALSE:
return new BoolExpr($tag === Tag::T_TRUE);
case Tag::T_REGEX:
return new RegexExpr($grammar->parser->resolveScope($token->getPointer()));
}
}
public function parse(Grammar $grammar, Token $token)
{
return new NameExpr($grammar->parser->resolveScope($token->getPointer()));
}
