From: Tjerk Meesters <datibbaw@php.net>
Date: Thu, 6 Mar 2014 00:31:01 +0000 (+0800)
Subject: Allow T_POW in constant expressions
X-Git-Tag: php-5.6.0beta1~3^2~129^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3d1fa4cb17038e530561a7a20c1b9497cec68f92;p=php

Allow T_POW in constant expressions
---

diff --git a/Zend/tests/constant_expressions.phpt b/Zend/tests/constant_expressions.phpt
index 7dea0d83f7..cf6474bd63 100644
--- a/Zend/tests/constant_expressions.phpt
+++ b/Zend/tests/constant_expressions.phpt
@@ -35,6 +35,9 @@ const T_25 = 1 + 2 * 3;
 // Test for memory leaks
 const T_26 = "1" + 2 + "3";
 
+// Allow T_POW
+const T_27 = 2 ** 3;
+
 var_dump(T_1);
 var_dump(T_2);
 var_dump(T_3);
@@ -61,6 +64,7 @@ var_dump(T_23);
 var_dump(T_24);
 var_dump(T_25);
 var_dump(T_26);
+var_dump(T_27);
 ?>
 --EXPECT--
 int(2)
@@ -89,3 +93,4 @@ bool(false)
 bool(true)
 int(7)
 int(6)
+int(8)
diff --git a/Zend/zend_ast.c b/Zend/zend_ast.c
index cf595b4d58..9a0808db9d 100644
--- a/Zend/zend_ast.c
+++ b/Zend/zend_ast.c
@@ -107,6 +107,13 @@ ZEND_API void zend_ast_evaluate(zval *result, zend_ast *ast, zend_class_entry *s
 			zval_dtor(&op1);
 			zval_dtor(&op2);
 			break;
+		case ZEND_POW:
+			zend_ast_evaluate(&op1, (&ast->u.child)[0], scope TSRMLS_CC);
+			zend_ast_evaluate(&op2, (&ast->u.child)[1], scope TSRMLS_CC);
+			pow_function(result, &op1, &op2 TSRMLS_CC);
+			zval_dtor(&op1);
+			zval_dtor(&op2);
+			break;
 		case ZEND_DIV:
 			zend_ast_evaluate(&op1, (&ast->u.child)[0], scope TSRMLS_CC);
 			zend_ast_evaluate(&op2, (&ast->u.child)[1], scope TSRMLS_CC);
diff --git a/Zend/zend_language_parser.y b/Zend/zend_language_parser.y
index d3844540cf..b7467b7552 100644
--- a/Zend/zend_language_parser.y
+++ b/Zend/zend_language_parser.y
@@ -1006,6 +1006,7 @@ static_operation:
 		static_scalar_value '+' static_scalar_value { $$.u.ast = zend_ast_create_binary(ZEND_ADD, $1.u.ast, $3.u.ast); }
 	|	static_scalar_value '-' static_scalar_value { $$.u.ast = zend_ast_create_binary(ZEND_SUB, $1.u.ast, $3.u.ast); }
 	|	static_scalar_value '*' static_scalar_value { $$.u.ast = zend_ast_create_binary(ZEND_MUL, $1.u.ast, $3.u.ast); }
+	|	static_scalar_value T_POW static_scalar_value { $$.u.ast = zend_ast_create_binary(ZEND_POW, $1.u.ast, $3.u.ast); }
 	|	static_scalar_value '/' static_scalar_value { $$.u.ast = zend_ast_create_binary(ZEND_DIV, $1.u.ast, $3.u.ast); }
 	|	static_scalar_value '%' static_scalar_value { $$.u.ast = zend_ast_create_binary(ZEND_MOD, $1.u.ast, $3.u.ast); }
 	|	'!' static_scalar_value { $$.u.ast = zend_ast_create_unary(ZEND_BOOL_NOT, $2.u.ast); }