diff options
Diffstat (limited to 'Zend/zend_language_parser.y')
| -rw-r--r-- | Zend/zend_language_parser.y | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Zend/zend_language_parser.y b/Zend/zend_language_parser.y index 893e0133ef..5a5bb60cfb 100644 --- a/Zend/zend_language_parser.y +++ b/Zend/zend_language_parser.y @@ -1158,6 +1158,7 @@ encaps_var_offset: internal_functions_in_yacc: T_ISSET '(' isset_variables ')' { $$ = $3; } | T_EMPTY '(' variable ')' { zend_do_isset_or_isempty(ZEND_ISEMPTY, &$$, &$3 TSRMLS_CC); } + | T_EMPTY '(' expr_without_variable ')' { zend_do_unary_op(ZEND_BOOL_NOT, &$$, &$3 TSRMLS_CC); } | T_INCLUDE expr { zend_do_include_or_eval(ZEND_INCLUDE, &$$, &$2 TSRMLS_CC); } | T_INCLUDE_ONCE expr { zend_do_include_or_eval(ZEND_INCLUDE_ONCE, &$$, &$2 TSRMLS_CC); } | T_EVAL '(' expr ')' { zend_do_include_or_eval(ZEND_EVAL, &$$, &$3 TSRMLS_CC); } @@ -1166,8 +1167,13 @@ internal_functions_in_yacc: ; isset_variables: - variable { zend_do_isset_or_isempty(ZEND_ISSET, &$$, &$1 TSRMLS_CC); } - | isset_variables ',' { zend_do_boolean_and_begin(&$1, &$2 TSRMLS_CC); } variable { znode tmp; zend_do_isset_or_isempty(ZEND_ISSET, &tmp, &$4 TSRMLS_CC); zend_do_boolean_and_end(&$$, &$1, &tmp, &$2 TSRMLS_CC); } + isset_variable { $$ = $1; } + | isset_variables ',' { zend_do_boolean_and_begin(&$1, &$2 TSRMLS_CC); } isset_variable { zend_do_boolean_and_end(&$$, &$1, &$4, &$2 TSRMLS_CC); } +; + +isset_variable: + variable { zend_do_isset_or_isempty(ZEND_ISSET, &$$, &$1 TSRMLS_CC); } + | expr_without_variable { zend_error(E_COMPILE_ERROR, "Cannot use isset() on the result of an expression (you can use \"null !== expression\" instead)"); } ; class_constant: |