php8.1: added first class callable syntax (#18)

pkg/visitor/printer/printer.go

@@ -787,6 +787,7 @@ func (p *printer) ExprFunctionCall(n *ast.ExprFunctionCall) {
 	p.printNode(n.Function)
 	p.printToken(n.OpenParenthesisTkn, []byte("("))
 	p.printSeparatedList(n.Args, n.SeparatorTkns, []byte(","))
+	p.printToken(n.EllipsisTkn, nil)
 	p.printToken(n.CloseParenthesisTkn, []byte(")"))
 }
 
@@ -828,6 +829,7 @@ func (p *printer) ExprMethodCall(n *ast.ExprMethodCall) {
 	p.printToken(n.CloseCurlyBracketTkn, nil)
 	p.printToken(n.OpenParenthesisTkn, []byte("("))
 	p.printSeparatedList(n.Args, n.SeparatorTkns, []byte(","))
+	p.printToken(n.EllipsisTkn, nil)
 	p.printToken(n.CloseParenthesisTkn, []byte(")"))
 }
 
@@ -839,6 +841,7 @@ func (p *printer) ExprNullsafeMethodCall(n *ast.ExprNullsafeMethodCall) {
 	p.printToken(n.CloseCurlyBracketTkn, nil)
 	p.printToken(n.OpenParenthesisTkn, []byte("("))
 	p.printSeparatedList(n.Args, n.SeparatorTkns, []byte(","))
+	p.printToken(n.EllipsisTkn, nil)
 	p.printToken(n.CloseParenthesisTkn, []byte(")"))
 }
 
@@ -915,6 +918,7 @@ func (p *printer) ExprStaticCall(n *ast.ExprStaticCall) {
 	p.printToken(n.CloseCurlyBracketTkn, nil)
 	p.printToken(n.OpenParenthesisTkn, p.ifNodeList(n.Args, []byte("(")))
 	p.printSeparatedList(n.Args, n.SeparatorTkns, []byte(","))
+	p.printToken(n.EllipsisTkn, nil)
 	p.printToken(n.CloseParenthesisTkn, p.ifNodeList(n.Args, []byte(")")))
 }
 

pkg/visitor/printer/printer_php8_1_test.go

@@ -84,3 +84,23 @@ class Foo {
 }
 `)
 }
+
+func TestFirstClassCallableSyntaxPHP81(t *testing.T) {
+	tester.NewParserPrintTestSuite(t).UsePHP8().Run(`<?php
+$fn = id(...);
+stdClass::doesNotExist(...);
+(new stdClass)->doesNotExist(...);
+Test::privateMethod(...);
+Test::instanceMethod(...);
+$fn = (new A)->$name2(...);
+false && strlen(...);
+$foo?->foo->bar(...);
+$foo?->foo($foo->bar(...));
+$foo = $closure->__invoke(...);
+
+// #[Attribute(...)] // not working
+// class Foo {}
+
+// new Foo(...); // not working
+`)
+}