// illegal composite literals: parentheses not allowed around literal type
	_ = (struct{}){}    // ERROR "parenthesize"
	_ = ([42]int){}     // ERROR "parenthesize"
	_ = ([...]int){}    // ERROR "parenthesize"
	_ = ([]int){}       // ERROR "parenthesize"
	_ = (map[int]int){} // ERROR "parenthesize"
	_ = (T){}           // ERROR "parenthesize"

	// legal according to spec
	x int
	y (int)
	int
	*float64
	// not legal according to spec
	(complex128)  // ERROR "non-declaration|expected|parenthesize"
	(*string)  // ERROR "non-declaration|expected|parenthesize"
	*(bool)    // ERROR "non-declaration|expected|parenthesize"
}

// legal according to spec
func (p T) m() {}

// now legal according to spec
func (p (T)) f() {}
func (p *(T)) g() {}

	`package p; type _ struct{ ( /* ERROR "cannot parenthesize embedded type" */ int) }`,
	`package p; type _ struct{ ( /* ERROR "cannot parenthesize embedded type" */ []byte) }`,
	`package p; type _ struct{ *( /* ERROR "cannot parenthesize embedded type" */ int) }`,
	`package p; type _ struct{ *( /* ERROR "cannot parenthesize embedded type" */ []byte) }`,

	// go.dev/issue/8656

	I0
	I1[bool]
	m(string)
}

func _() {
	var x I3
	x.m0()
	x.m1(true)
	x.m("foo")
}

type _ struct {
	( /* ERROR "cannot parenthesize" */ int8)
	( /* ERROR "cannot parenthesize" */ *int16)
	*( /* ERROR "cannot parenthesize" */ int32)
	List[int]

	int8 /* ERROR "int8 redeclared" */
	*int16 /* ERROR "int16 redeclared" */
	List /* ERROR "List redeclared" */ [int]
}

		c.To.goString(indent+2, "To: "))
}

func (c *Cast) prec() precedence {
	return precCast
}

// The parenthesize function prints the string for val, wrapped in
// parentheses if necessary.
func parenthesize(ps *printState, val AST) {
	paren := false
	switch v := val.(type) {
	case *Name, *InitializerList:
	case *FunctionParam:
		if ps.llvmStyle {

			// *(T)
			p.syntaxError("cannot parenthesize embedded type")
			p.next()
			typ = p.qualifiedName(nil)
			p.got(_Rparen) // no need to complain if missing
		} else {
			// *T
			typ = p.qualifiedName(nil)
		}
		tag := p.oliteral()
		p.addField(styp, pos, nil, newIndirect(pos, typ), tag)

	case _Lparen:
		p.syntaxError("cannot parenthesize embedded type")
		p.next()
		var typ Expr

				}
			} else {
				// T P
				typ = p.parseType()
			}
		}
	case token.MUL:
		star := p.pos
		p.next()
		if p.tok == token.LPAREN {
			// *(T)
			p.error(p.pos, "cannot parenthesize embedded type")
			p.next()
			typ = p.parseQualifiedIdent(nil)
			// expect closing ')' but no need to complain if missing
			if p.tok == token.RPAREN {
				p.next()
			}
		} else {
			// *T

Anna Kozlova <******@****.***> 1717492092 +0200

Anna Kozlova <******@****.***> 1717492092 +0200

// Issue 4468: go/defer calls may not be parenthesized.

package p

type T int

func (t *T) F() T {
	return *t
}

type S struct {
	t T
}

func F() {
	go F            // ERROR "must be function call"
	defer F         // ERROR "must be function call"
	go (F)		// ERROR "must be function call|must not be parenthesized"
	defer (F)	// ERROR "must be function call|must not be parenthesized"