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https://github.com/golang/go
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72ad2f44ea
Added a new flag -G to run. Setting -G (as in: go run run.go -G) will run tests marked with "errorcheck" (and no other flags) also with the compiler using the new typechecker. Many tests don't pass yet (due to discrepancies in error messages). The top-level tests in the test directory which don't pass yet have been explicitly excluded, permitting to see the current status. Future CLs will bring error messages in sync and eventually all tests should pass. Change-Id: I7caf5eff413e173f68d092af4bbe458434718d74 Reviewed-on: https://go-review.googlesource.com/c/go/+/274313 Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
23 lines
836 B
Go
23 lines
836 B
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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// Verify that append arguments requirements are enforced by the
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// compiler.
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package main
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func main() {
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s := make([]int, 8)
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_ = append() // ERROR "missing arguments to append|not enough arguments for append"
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_ = append(s...) // ERROR "cannot use ... on first argument|not enough arguments in call to append"
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_ = append(s, 2, s...) // ERROR "too many arguments to append|too many arguments in call to append"
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_ = append(s, make([]int, 0)) // ERROR "cannot use make.* as type int in append|cannot use make.* as int value"
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_ = append(s, make([]int, -1)...) // ERROR "negative len argument in make|index -1.* must not be negative"
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}
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