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3fd3171c2c
The gcCompat mode was introduced to match the new parser's node position setup exactly with the positions used by the original parser. Some of the gcCompat adjustments were required to satisfy syntax error test cases, and the rest were required to make toolstash cmp pass. This change removes the former gcCompat adjustments and instead adjusts the respective test cases as necessary. In some cases this makes the error lines consistent with the ones reported by gccgo. Where it has changed, the position associated with a given syntactic construct is the position (line/col number) of the left-most token belonging to the construct. Change-Id: I5b60c00c5999a895c4d6d6e9b383c6405ccf725c Reviewed-on: https://go-review.googlesource.com/36695 Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
48 lines
968 B
Go
48 lines
968 B
Go
// errorcheck
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// Copyright 2009 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 various erroneous type switches are caught be the compiler.
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// Does not compile.
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package main
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import "io"
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func whatis(x interface{}) string {
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switch x.(type) {
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case int:
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return "int"
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case int: // ERROR "duplicate"
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return "int8"
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case io.Reader:
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return "Reader1"
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case io.Reader: // ERROR "duplicate"
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return "Reader2"
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case interface {
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r()
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w()
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}:
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return "rw"
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case interface { // ERROR "duplicate"
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w()
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r()
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}:
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return "wr"
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}
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return ""
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}
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func notused(x interface{}) {
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// The first t is in a different scope than the 2nd t; it cannot
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// be accessed (=> declared and not used error); but it is legal
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// to declare it.
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switch t := 0; t := x.(type) { // ERROR "declared and not used"
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case int:
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_ = t // this is using the t of "t := x.(type)"
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}
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}
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