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f229e46783
Identify this assignment case and instead of the more general error
prog.go:6: cannot assign to students["sally"].age
produce
prog.go:6: cannot directly assign to struct field students["sally"].age in map
that explains why the assignment is not possible.
Fixes #13779.
Change-Id: I90c10b445f907834fc1735aa66e44a0f447aa74f
Reviewed-on: https://go-review.googlesource.com/21462
Reviewed-by: David Chase <drchase@google.com>
16 lines
492 B
Go
16 lines
492 B
Go
// errorcheck
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 13779: provide better error message when directly assigning to struct field in map
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package main
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func main() {
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type person struct{ age, weight, height int }
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students := map[string]person{"sally": person{12, 50, 32}}
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students["sally"].age = 3 // ERROR "cannot directly assign to struct field .* in map"
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}
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