php5 test coverage

diff

@@ -117,12 +117,16 @@
 117
 118
 119
+-120
 121
+-122
 123
+-124
 125
 126
 127
 128
+-129
 130
 131
 132
@@ -138,16 +142,23 @@
 142
 143
 144
+-145
+-146
 147
 148
 149
+-150
 151
 152
+-153
 154
+-155
 156
 157
 158
 159
+-160
+-161
 163
 164
 166
@@ -369,17 +380,6 @@
 528
 
 
--120
--122
--124
--129
--145
--146
--150
--153
--155
--160
--161
 -162
 -165
 -177

node/expr/t_function_call_test.go

@@ -65,7 +65,7 @@ func TestFunctionCallRelative(t *testing.T) {
 }
 
 func TestFunctionFullyQualified(t *testing.T) {
-	src := `<? \foo();`
+	src := `<? \foo([]);`
 
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
@@ -76,7 +76,15 @@ func TestFunctionFullyQualified(t *testing.T) {
 							&name.NamePart{Value: "foo"},
 						},
 					},
-					Arguments: []node.Node{},
+					Arguments: []node.Node{
+						&node.Argument{
+							Variadic:    false,
+							IsReference: false,
+							Expr: &expr.ShortArray{
+								Items: []node.Node{},
+							},
+						},
+					},
 				},
 			},
 		},
@@ -90,14 +98,22 @@ func TestFunctionFullyQualified(t *testing.T) {
 }
 
 func TestFunctionCallVar(t *testing.T) {
-	src := `<? $foo();`
+	src := `<? $foo(yield $a);`
 
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
 			&stmt.Expression{
 				Expr: &expr.FunctionCall{
-					Function:  &expr.Variable{VarName: &node.Identifier{Value: "$foo"}},
+					Function: &expr.Variable{VarName: &node.Identifier{Value: "$foo"}},
-					Arguments: []node.Node{},
+					Arguments: []node.Node{
+						&node.Argument{
+							Variadic:    false,
+							IsReference: false,
+							Expr: &expr.Yield{
+								Value: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+							},
+						},
+					},
 				},
 			},
 		},

node/stmt/t_declare_test.go

@@ -38,7 +38,7 @@ func TestDeclare(t *testing.T) {
 }
 
 func TestDeclareStmts(t *testing.T) {
-	src := `<? declare(ticks=1) {}`
+	src := `<? declare(ticks=1, strict_types=1) {}`
 
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
@@ -49,6 +49,11 @@ func TestDeclareStmts(t *testing.T) {
 						ConstantName:  &node.Identifier{Value: "ticks"},
 						Expr:          &scalar.Lnumber{Value: "1"},
 					},
+					&stmt.Constant{
+						PhpDocComment: "",
+						ConstantName:  &node.Identifier{Value: "strict_types"},
+						Expr:          &scalar.Lnumber{Value: "1"},
+					},
 				},
 				Stmt: &stmt.StmtList{
 					Stmts: []node.Node{},

node/stmt/t_function_test.go

@@ -1,11 +1,12 @@
 package stmt_test
 
 import (
-	"github.com/z7zmey/php-parser/node/scalar"
-	"github.com/z7zmey/php-parser/node/name"
 	"bytes"
 	"testing"
 
+	"github.com/z7zmey/php-parser/node/name"
+	"github.com/z7zmey/php-parser/node/scalar"
+
 	"github.com/z7zmey/php-parser/node"
 	"github.com/z7zmey/php-parser/node/expr"
 	"github.com/z7zmey/php-parser/node/stmt"
@@ -19,10 +20,10 @@ func TestSimpleFunction(t *testing.T) {
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
 			&stmt.Function{
-				ReturnsRef: false,
+				ReturnsRef:    false,
 				PhpDocComment: "",
-				FunctionName: &node.Identifier{Value: "foo"},
+				FunctionName:  &node.Identifier{Value: "foo"},
-				Stmts: []node.Node{},
+				Stmts:         []node.Node{},
 			},
 		},
 	}
@@ -40,9 +41,9 @@ func TestFunctionReturn(t *testing.T) {
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
 			&stmt.Function{
-				ReturnsRef: false,
+				ReturnsRef:    false,
 				PhpDocComment: "",
-				FunctionName: &node.Identifier{Value: "foo"},
+				FunctionName:  &node.Identifier{Value: "foo"},
 				Stmts: []node.Node{
 					&stmt.Return{},
 				},
@@ -58,14 +59,28 @@ func TestFunctionReturn(t *testing.T) {
 }
 
 func TestFunctionReturnVar(t *testing.T) {
-	src := `<? function foo() {return $a;}`
+	src := `<? function foo(array $a, callable $b) {return $a;}`
 
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
 			&stmt.Function{
-				ReturnsRef: false,
+				ReturnsRef:    false,
 				PhpDocComment: "",
-				FunctionName: &node.Identifier{Value: "foo"},
+				FunctionName:  &node.Identifier{Value: "foo"},
+				Params: []node.Node{
+					&node.Parameter{
+						ByRef:        false,
+						Variadic:     false,
+						VariableType: &node.Identifier{Value: "array"},
+						Variable:     &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+					&node.Parameter{
+						ByRef:        false,
+						Variadic:     false,
+						VariableType: &node.Identifier{Value: "callable"},
+						Variable:     &expr.Variable{VarName: &node.Identifier{Value: "$b"}},
+					},
+				},
 				Stmts: []node.Node{
 					&stmt.Return{
 						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
@@ -88,9 +103,9 @@ func TestRefFunction(t *testing.T) {
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
 			&stmt.Function{
-				ReturnsRef: true,
+				ReturnsRef:    true,
 				PhpDocComment: "",
-				FunctionName: &node.Identifier{Value: "foo"},
+				FunctionName:  &node.Identifier{Value: "foo"},
 				Stmts: []node.Node{
 					&stmt.Return{
 						Expr: &scalar.Lnumber{Value: "1"},
@@ -113,9 +128,9 @@ func TestReturnTypeFunction(t *testing.T) {
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
 			&stmt.Function{
-				ReturnsRef: true,
+				ReturnsRef:    true,
 				PhpDocComment: "",
-				FunctionName: &node.Identifier{Value: "foo"},
+				FunctionName:  &node.Identifier{Value: "foo"},
 				ReturnType: &name.Name{
 					Parts: []node.Node{
 						&name.NamePart{Value: "void"},

node/stmt/t_global_test.go

@@ -5,8 +5,9 @@ import (
 	"testing"
 
 	"github.com/z7zmey/php-parser/node"
-	"github.com/z7zmey/php-parser/node/stmt"
 	"github.com/z7zmey/php-parser/node/expr"
+	"github.com/z7zmey/php-parser/node/name"
+	"github.com/z7zmey/php-parser/node/stmt"
 	"github.com/z7zmey/php-parser/php5"
 	"github.com/z7zmey/php-parser/php7"
 )
@@ -32,7 +33,7 @@ func TestGlobal(t *testing.T) {
 }
 
 func TestGlobalVars(t *testing.T) {
-	src := `<? global $a, $b;`
+	src := `<? global $a, $b, $$c, ${foo()};`
 
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
@@ -40,6 +41,17 @@ func TestGlobalVars(t *testing.T) {
 				Vars: []node.Node{
 					&expr.Variable{VarName: &node.Identifier{Value: "$a"}},
 					&expr.Variable{VarName: &node.Identifier{Value: "$b"}},
+					&expr.Variable{VarName: &expr.Variable{VarName: &node.Identifier{Value: "$c"}}},
+					&expr.Variable{
+						VarName: &expr.FunctionCall{
+							Function: &name.Name{
+								Parts: []node.Node{
+									&name.NamePart{Value: "foo"},
+								},
+							},
+							Arguments: []node.Node{},
+						},
+					},
 				},
 			},
 		},

node/stmt/t_static_var_test.go

@@ -6,8 +6,8 @@ import (
 
 	"github.com/z7zmey/php-parser/node"
 	"github.com/z7zmey/php-parser/node/expr"
-	"github.com/z7zmey/php-parser/node/stmt"
 	"github.com/z7zmey/php-parser/node/scalar"
+	"github.com/z7zmey/php-parser/node/stmt"
 	"github.com/z7zmey/php-parser/php5"
 	"github.com/z7zmey/php-parser/php7"
 )
@@ -46,7 +46,33 @@ func TestStaticVars(t *testing.T) {
 					},
 					&stmt.StaticVar{
 						Variable: &expr.Variable{VarName: &node.Identifier{Value: "$b"}},
-						Expr: &scalar.Lnumber{Value: "1"},
+						Expr:     &scalar.Lnumber{Value: "1"},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestStaticVars2(t *testing.T) {
+	src := `<? static $a = 1, $b;`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Static{
+				Vars: []node.Node{
+					&stmt.StaticVar{
+						Variable: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+						Expr:     &scalar.Lnumber{Value: "1"},
+					},
+					&stmt.StaticVar{
+						Variable: &expr.Variable{VarName: &node.Identifier{Value: "$b"}},
 					},
 				},
 			},

node/stmt/t_switch_case_default_test.go

@@ -27,14 +27,14 @@ func TestAltSwitch(t *testing.T) {
 				Cond: &scalar.Lnumber{Value: "1"},
 				Cases: []node.Node{
 					&stmt.Case{
-						Cond: &scalar.Lnumber{Value: "1"},
+						Cond:  &scalar.Lnumber{Value: "1"},
 						Stmts: []node.Node{},
 					},
 					&stmt.Default{
 						Stmts: []node.Node{},
 					},
 					&stmt.Case{
-						Cond: &scalar.Lnumber{Value: "2"},
+						Cond:  &scalar.Lnumber{Value: "2"},
 						Stmts: []node.Node{},
 					},
 				},
@@ -45,6 +45,38 @@ func TestAltSwitch(t *testing.T) {
 	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestAltSwitchSemicolon(t *testing.T) {
+	src := `<? 
+		switch (1) :;
+			case 1;
+			case 2;
+		endswitch;
+	`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Switch{
+				Cond: &scalar.Lnumber{Value: "1"},
+				Cases: []node.Node{
+					&stmt.Case{
+						Cond:  &scalar.Lnumber{Value: "1"},
+						Stmts: []node.Node{},
+					},
+					&stmt.Case{
+						Cond:  &scalar.Lnumber{Value: "2"},
+						Stmts: []node.Node{},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
 
 	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
@@ -54,6 +86,43 @@ func TestSwitch(t *testing.T) {
 	src := `<? 
 		switch (1) {
 			case 1: break;
+			case 2: break;
+		}
+	`
+
+	expected := &stmt.StmtList{
+		Stmts: []node.Node{
+			&stmt.Switch{
+				Cond: &scalar.Lnumber{Value: "1"},
+				Cases: []node.Node{
+					&stmt.Case{
+						Cond: &scalar.Lnumber{Value: "1"},
+						Stmts: []node.Node{
+							&stmt.Break{},
+						},
+					},
+					&stmt.Case{
+						Cond: &scalar.Lnumber{Value: "2"},
+						Stmts: []node.Node{
+							&stmt.Break{},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+
+	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
+	assertEqual(t, expected, actual)
+}
+
+func TestSwitchSemicolon(t *testing.T) {
+	src := `<? 
+		switch (1) {;
+			case 1; break;
 			case 2; break;
 		}
 	`

node/stmt/t_while_break_test.go

@@ -31,7 +31,6 @@ func TestBreakEmpty(t *testing.T) {
 	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 
-
 	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 }
@@ -57,13 +56,12 @@ func TestBreakLight(t *testing.T) {
 	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 
-
 	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 }
 
 func TestBreak(t *testing.T) {
-	src := `<? while (1) { break(3); }`
+	src := `<? while (1) : break(3); endwhile;`
 
 	expected := &stmt.StmtList{
 		Stmts: []node.Node{
@@ -83,7 +81,6 @@ func TestBreak(t *testing.T) {
 	actual, _, _ := php7.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 
-
 	actual, _, _ = php5.Parse(bytes.NewBufferString(src), "test.php")
 	assertEqual(t, expected, actual)
 }

php5/php5.y

@@ -668,7 +668,11 @@ unticked_statement:
                 comments.AddComments($$, $1.Comments())
             }
     |   yield_expr ';'
-            { fmt.Println("58"); $$ = $1 }
+            {
+                fmt.Println("58"); $$ = stmt.NewExpression($1)
+                positions.AddPosition($$, positionBuilder.NewNodeTokenPosition($1, $2))
+                comments.AddComments($$, comments[$1])
+            }
     |   T_GLOBAL global_var_list ';'
             {
                 fmt.Println("59"); $$ = stmt.NewGlobal($2)
@@ -2276,41 +2280,25 @@ expr_without_variable:
 yield_expr:
         T_YIELD expr_without_variable
             {
-                yield := expr.NewYield(nil, $2)
+                fmt.Println("307"); $$ = expr.NewYield(nil, $2)
-                positions.AddPosition(yield, positionBuilder.NewTokenNodePosition($1, $2))
-                comments.AddComments(yield, $1.Comments())
-
-                fmt.Println("307"); $$ = stmt.NewExpression(yield)
                 positions.AddPosition($$, positionBuilder.NewTokenNodePosition($1, $2))
                 comments.AddComments($$, $1.Comments())
             }
     |   T_YIELD variable
             {
-                yield := expr.NewYield(nil, $2)
+                fmt.Println("308"); $$ = expr.NewYield(nil, $2)
-                positions.AddPosition(yield, positionBuilder.NewTokenNodePosition($1, $2))
-                comments.AddComments(yield, $1.Comments())
-
-                fmt.Println("308"); $$ = stmt.NewExpression(yield)
                 positions.AddPosition($$, positionBuilder.NewTokenNodePosition($1, $2))
                 comments.AddComments($$, $1.Comments())
             }
     |   T_YIELD expr T_DOUBLE_ARROW expr_without_variable
             {
-                yield := expr.NewYield($2, $4)
+                fmt.Println("309"); $$ = expr.NewYield($2, $4)
-                positions.AddPosition(yield, positionBuilder.NewTokenNodePosition($1, $4))
-                comments.AddComments(yield, $1.Comments())
-
-                fmt.Println("309"); $$ = stmt.NewExpression(yield)
                 positions.AddPosition($$, positionBuilder.NewTokenNodePosition($1, $4))
                 comments.AddComments($$, $1.Comments())
             }
     |   T_YIELD expr T_DOUBLE_ARROW variable
             {
-                yield := expr.NewYield($2, $4)
+                fmt.Println("310"); $$ = expr.NewYield($2, $4)
-                positions.AddPosition(yield, positionBuilder.NewTokenNodePosition($1, $4))
-                comments.AddComments(yield, $1.Comments())
-
-                fmt.Println("310"); $$ = stmt.NewExpression(yield)
                 positions.AddPosition($$, positionBuilder.NewTokenNodePosition($1, $4))
                 comments.AddComments($$, $1.Comments())
             }

php5/php5_test.go

@@ -102,7 +102,7 @@ CAD;
 
 		while (1) { break; }
 		while (1) { break 2; }
-		while (1) { break(3); }
+		while (1) : break(3); endwhile;
 		class foo{ const FOO = 1, BAR = 2; }
 		class foo{ function bar() {} }
 		class foo{ public static function &bar() {} }
@@ -117,7 +117,7 @@ CAD;
 		while (1) { continue 2; }
 		while (1) { continue(3); }
 		declare(ticks=1);
-		declare(ticks=1) {}
+		declare(ticks=1, strict_types=1) {}
 		declare(ticks=1): enddeclare;
 		do {} while(1);
 		echo $a, 1;
@@ -140,10 +140,10 @@ CAD;
 			return $a;
 		}
 		
-		function foo() {return;}
+		function foo(array $a, callable $b) {return;}
 		function &foo() {return 1;}
 		function &foo() {}
-		global $a, $b;
+		global $a, $b, $$c, ${foo()};
 		a: 
 		goto a;
 		__halt_compiler();
@@ -162,15 +162,26 @@ CAD;
 		class foo {var $a;}
 		class foo {public static $a, $b = 1;}
 		static $a, $b = 1;
+		static $a = 1, $b;
 
 		switch (1) :
 			case 1:
 			default:
+			case 2:
+		endswitch;
+
+		switch (1) :;
+			case 1;
 			case 2;
 		endswitch;
 		
 		switch (1) {
 			case 1: break;
+			case 2: break;
+		}
+		
+		switch (1) {;
+			case 1; break;
 			case 2; break;
 		}
 		throw $e;
@@ -223,9 +234,9 @@ CAD;
 		die;
 		die($a);
 		foo();
-		namespace\foo();
+		namespace\foo(&$a);
-		\foo();
+		\foo([]);
-		$foo();
+		$foo(yield $a);
 
 		$a--;
 		$a++;
@@ -794,6 +805,11 @@ CAD;
 						ConstantName:  &node.Identifier{Value: "ticks"},
 						Expr:          &scalar.Lnumber{Value: "1"},
 					},
+					&stmt.Constant{
+						PhpDocComment: "",
+						ConstantName:  &node.Identifier{Value: "strict_types"},
+						Expr:          &scalar.Lnumber{Value: "1"},
+					},
 				},
 				Stmt: &stmt.StmtList{
 					Stmts: []node.Node{},
@@ -936,7 +952,7 @@ CAD;
 				ReturnsRef:    false,
 				PhpDocComment: "",
 				FunctionName:  &node.Identifier{Value: "foo"},
-				Stmts:         []node.Node{
+				Stmts: []node.Node{
 					&stmt.HaltCompiler{},
 					&stmt.Function{
 						ReturnsRef:    false,
@@ -946,8 +962,8 @@ CAD;
 					},
 					&stmt.Class{
 						PhpDocComment: "",
-						ClassName: &node.Identifier{Value: "Baz"},
+						ClassName:     &node.Identifier{Value: "Baz"},
-						Stmts: []node.Node{},
+						Stmts:         []node.Node{},
 					},
 					&stmt.Return{
 						Expr: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
@@ -958,6 +974,20 @@ CAD;
 				ReturnsRef:    false,
 				PhpDocComment: "",
 				FunctionName:  &node.Identifier{Value: "foo"},
+				Params: []node.Node{
+					&node.Parameter{
+						ByRef:        false,
+						Variadic:     false,
+						VariableType: &node.Identifier{Value: "array"},
+						Variable:     &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+					},
+					&node.Parameter{
+						ByRef:        false,
+						Variadic:     false,
+						VariableType: &node.Identifier{Value: "callable"},
+						Variable:     &expr.Variable{VarName: &node.Identifier{Value: "$b"}},
+					},
+				},
 				Stmts: []node.Node{
 					&stmt.Return{},
 				},
@@ -982,6 +1012,17 @@ CAD;
 				Vars: []node.Node{
 					&expr.Variable{VarName: &node.Identifier{Value: "$a"}},
 					&expr.Variable{VarName: &node.Identifier{Value: "$b"}},
+					&expr.Variable{VarName: &expr.Variable{VarName: &node.Identifier{Value: "$c"}}},
+					&expr.Variable{
+						VarName: &expr.FunctionCall{
+							Function: &name.Name{
+								Parts: []node.Node{
+									&name.NamePart{Value: "foo"},
+								},
+							},
+							Arguments: []node.Node{},
+						},
+					},
 				},
 			},
 			&stmt.Label{
@@ -1152,6 +1193,17 @@ CAD;
 					},
 				},
 			},
+			&stmt.Static{
+				Vars: []node.Node{
+					&stmt.StaticVar{
+						Variable: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+						Expr:     &scalar.Lnumber{Value: "1"},
+					},
+					&stmt.StaticVar{
+						Variable: &expr.Variable{VarName: &node.Identifier{Value: "$b"}},
+					},
+				},
+			},
 			&stmt.Switch{
 				Cond: &scalar.Lnumber{Value: "1"},
 				Cases: []node.Node{
@@ -1168,6 +1220,36 @@ CAD;
 					},
 				},
 			},
+			&stmt.Switch{
+				Cond: &scalar.Lnumber{Value: "1"},
+				Cases: []node.Node{
+					&stmt.Case{
+						Cond:  &scalar.Lnumber{Value: "1"},
+						Stmts: []node.Node{},
+					},
+					&stmt.Case{
+						Cond:  &scalar.Lnumber{Value: "2"},
+						Stmts: []node.Node{},
+					},
+				},
+			},
+			&stmt.Switch{
+				Cond: &scalar.Lnumber{Value: "1"},
+				Cases: []node.Node{
+					&stmt.Case{
+						Cond: &scalar.Lnumber{Value: "1"},
+						Stmts: []node.Node{
+							&stmt.Break{},
+						},
+					},
+					&stmt.Case{
+						Cond: &scalar.Lnumber{Value: "2"},
+						Stmts: []node.Node{
+							&stmt.Break{},
+						},
+					},
+				},
+			},
 			&stmt.Switch{
 				Cond: &scalar.Lnumber{Value: "1"},
 				Cases: []node.Node{
@@ -1750,7 +1832,13 @@ CAD;
 							&name.NamePart{Value: "foo"},
 						},
 					},
-					Arguments: []node.Node{},
+					Arguments: []node.Node{
+						&node.Argument{
+							Variadic:    false,
+							IsReference: true,
+							Expr:        &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+						},
+					},
 				},
 			},
 			&stmt.Expression{
@@ -1760,13 +1848,29 @@ CAD;
 							&name.NamePart{Value: "foo"},
 						},
 					},
-					Arguments: []node.Node{},
+					Arguments: []node.Node{
+						&node.Argument{
+							Variadic:    false,
+							IsReference: false,
+							Expr: &expr.ShortArray{
+								Items: []node.Node{},
+							},
+						},
+					},
 				},
 			},
 			&stmt.Expression{
 				Expr: &expr.FunctionCall{
-					Function:  &expr.Variable{VarName: &node.Identifier{Value: "$foo"}},
+					Function: &expr.Variable{VarName: &node.Identifier{Value: "$foo"}},
-					Arguments: []node.Node{},
+					Arguments: []node.Node{
+						&node.Argument{
+							Variadic:    false,
+							IsReference: false,
+							Expr: &expr.Yield{
+								Value: &expr.Variable{VarName: &node.Identifier{Value: "$a"}},
+							},
+						},
+					},
 				},
 			},
 			&stmt.Expression{