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d32018a500
Add tests for the "negative size argument in make.*" and "size argument too large in make.*" error messages to appear at call sites in case the size is a const defined on another line. As suggested by Matthew in a comment on CL 69910. Change-Id: I5c33d4bec4e3d20bb21fe8019df27999997ddff3 Reviewed-on: https://go-review.googlesource.com/100395 Reviewed-by: Matthew Dempsky <mdempsky@google.com>
41 lines
1.5 KiB
Go
41 lines
1.5 KiB
Go
// errorcheck
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// Copyright 2017 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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// Ensure that typed non-integer, negative and too large
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// values are not accepted as size argument in make for
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// maps.
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package main
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type T map[int]int
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var sink T
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func main() {
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sink = make(T, -1) // ERROR "negative size argument in make.*"
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sink = make(T, uint64(1<<63)) // ERROR "size argument too large in make.*"
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// Test that errors are emitted at call sites, not const declarations
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const x = -1
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sink = make(T, x) // ERROR "negative size argument in make.*"
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const y = uint64(1 << 63)
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sink = make(T, y) // ERROR "size argument too large in make.*"
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sink = make(T, 0.5) // ERROR "constant 0.5 truncated to integer"
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sink = make(T, 1.0)
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sink = make(T, float32(1.0)) // ERROR "non-integer size argument in make.*"
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sink = make(T, float64(1.0)) // ERROR "non-integer size argument in make.*"
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sink = make(T, 1.0)
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sink = make(T, float32(1.0)) // ERROR "non-integer size argument in make.*"
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sink = make(T, float64(1.0)) // ERROR "non-integer size argument in make.*"
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sink = make(T, 1+0i)
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sink = make(T, complex64(1+0i)) // ERROR "non-integer size argument in make.*"
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sink = make(T, complex128(1+0i)) // ERROR "non-integer size argument in make.*"
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sink = make(T, 1+0i)
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sink = make(T, complex64(1+0i)) // ERROR "non-integer size argument in make.*"
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sink = make(T, complex128(1+0i)) // ERROR "non-integer size argument in make.*"
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}
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