--- /dev/null
+Yield with unary operator argument
+-----
+<?php
+
+function gen() {
+ yield +1;
+ yield -1;
+ yield * -1;
+}
+-----
+array(
+ 0: Stmt_Function(
+ byRef: false
+ name: gen
+ params: array(
+ )
+ returnType: null
+ stmts: array(
+ 0: Expr_Yield(
+ key: null
+ value: Expr_UnaryPlus(
+ expr: Scalar_LNumber(
+ value: 1
+ )
+ )
+ )
+ 1: Expr_Yield(
+ key: null
+ value: Expr_UnaryMinus(
+ expr: Scalar_LNumber(
+ value: 1
+ )
+ )
+ )
+ 2: Expr_BinaryOp_Mul(
+ left: Expr_Yield(
+ key: null
+ value: null
+ )
+ right: Expr_UnaryMinus(
+ expr: Scalar_LNumber(
+ value: 1
+ )
+ )
+ )
+ )
+ )
+)