go/test/fixedbugs/issue27356.go
Robert Griesemer 584e631023 go/types, types2: better error messages for invalid calls
Rather than reporting "non-function" for an invalid type parameter,
report which type in the type parameter's type set is not a function.

Change-Id: I8beec25cc337bae8e03d23e62d97aa82db46bab4
Reviewed-on: https://go-review.googlesource.com/c/go/+/654475
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-03-06 13:35:49 -08:00

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Go

// errorcheck
// Copyright 2018 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.
// Issue 27356: function parameter hiding built-in function results in compiler crash
package p
var a = []int{1,2,3}
func _(len int) {
_ = len(a) // ERROR "cannot call|expected function"
}
var cap = false
var _ = cap(a) // ERROR "cannot call|expected function"