Editando: shift3.go
// run // Copyright 2022 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Test that the compiler's noder uses the correct type // for RHS shift operands that are untyped. Must compile; // run for good measure. package main import ( "fmt" "math" ) func f(x, y int) { if x != y { panic(fmt.Sprintf("%d != %d", x, y)) } } func main() { var x int = 1 f(x<<1, 2) f(x<<1., 2) f(x<<(1+0i), 2) f(x<<0i, 1) f(x<<(1<<x), 4) f(x<<(1.<<x), 4) f(x<<((1+0i)<<x), 4) f(x<<(0i<<x), 1) // corner cases const M = math.MaxUint f(x<<(M+0), 0) // shift by untyped int representable as uint f(x<<(M+0.), 0) // shift by untyped float representable as uint f(x<<(M+0.+0i), 0) // shift by untyped complex representable as uint }
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Kerym Chaeceran