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1737aef270
This change adds line position tests for several yyerror calls in the typechecker that are currently not tested in any way. Untested yyerror calls were found by replacing them with yerrorl(src.NoXPos, ...) (thus destroying position information in the error), and then running the test suite. No failures means no test coverage for the relevant yyerror call. For #19683 Change-Id: Iedb3d2f02141b332e9bfa76dbf5ae930ad2fddc3 Reviewed-on: https://go-review.googlesource.com/41477 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
// errorcheck
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// Copyright 2011 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 illegal composite literals are detected.
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// Does not compile.
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package main
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var m map[int][3]int
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func f() [3]int
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func fp() *[3]int
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var mp map[int]*[3]int
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var (
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_ = [3]int{1, 2, 3}[:] // ERROR "slice of unaddressable value"
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_ = m[0][:] // ERROR "slice of unaddressable value"
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_ = f()[:] // ERROR "slice of unaddressable value"
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_ = 301[:] // ERROR "cannot slice"
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_ = 3.1[:] // ERROR "cannot slice"
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_ = true[:] // ERROR "cannot slice"
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// these are okay because they are slicing a pointer to an array
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_ = (&[3]int{1, 2, 3})[:]
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_ = mp[0][:]
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_ = fp()[:]
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)
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type T struct {
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i int
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f float64
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s string
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next *T
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}
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type TP *T
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type Ti int
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var (
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_ = &T{0, 0, "", nil} // ok
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_ = &T{i: 0, f: 0, s: "", next: {}} // ERROR "missing type in composite literal|omit types within composite literal"
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_ = &T{0, 0, "", {}} // ERROR "missing type in composite literal|omit types within composite literal"
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_ = TP{i: 0, f: 0, s: "", next: {}} // ERROR "invalid pointer type"
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_ = &Ti{} // ERROR "invalid pointer type"
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)
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type M map[T]T
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var (
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_ = M{{i:1}: {i:2}}
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_ = M{T{i:1}: {i:2}}
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_ = M{{i:1}: T{i:2}}
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_ = M{T{i:1}: T{i:2}}
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)
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type S struct { s [1]*M1 }
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type M1 map[S]int
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var _ = M1{{s:[1]*M1{&M1{{}:1}}}:2}
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