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-rw-r--r--Zend/zend_language_parser.y4
1 files changed, 4 insertions, 0 deletions
diff --git a/Zend/zend_language_parser.y b/Zend/zend_language_parser.y
index 6bfef2219e..97fc4de546 100644
--- a/Zend/zend_language_parser.y
+++ b/Zend/zend_language_parser.y
@@ -67,6 +67,7 @@ static YYSIZE_T zend_yytnamerr(char*, const char*);
%right T_YIELD
%left '=' T_PLUS_EQUAL T_MINUS_EQUAL T_MUL_EQUAL T_DIV_EQUAL T_CONCAT_EQUAL T_MOD_EQUAL T_AND_EQUAL T_OR_EQUAL T_XOR_EQUAL T_SL_EQUAL T_SR_EQUAL T_POW_EQUAL
%left '?' ':'
+%right T_COALESCE
%left T_BOOLEAN_OR
%left T_BOOLEAN_AND
%left '|'
@@ -221,6 +222,7 @@ static YYSIZE_T zend_yytnamerr(char*, const char*);
%token T_NS_C "__NAMESPACE__ (T_NS_C)"
%token T_NS_SEPARATOR "\\ (T_NS_SEPARATOR)"
%token T_ELLIPSIS "... (T_ELLIPSIS)"
+%token T_COALESCE "?? (T_COALESCE)"
%token T_POW "** (T_POW)"
%token T_POW_EQUAL "**= (T_POW_EQUAL)"
@@ -827,6 +829,8 @@ expr_without_variable:
{ $$ = zend_ast_create(ZEND_AST_CONDITIONAL, $1, $3, $5); }
| expr '?' ':' expr
{ $$ = zend_ast_create(ZEND_AST_CONDITIONAL, $1, NULL, $4); }
+ | expr T_COALESCE expr
+ { $$ = zend_ast_create(ZEND_AST_COALESCE, $1, $3); }
| internal_functions_in_yacc { $$ = $1; }
| T_INT_CAST expr { $$ = zend_ast_create_cast(IS_LONG, $2); }
| T_DOUBLE_CAST expr { $$ = zend_ast_create_cast(IS_DOUBLE, $2); }