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8f19394b62
Based on https://golang.org/cl/284256 for go/types. Brings this code more in line with go/types. Adjusted various tests to match new error messages which generally are now better: for assignment errors, instead of a generic "cannot convert" we now say "cannot use" followed by a clearer reason as to why not. Major differences to go/types with respect to the changed files: - Some of the new code now returns error codes, but they are only used internally for now, and not reported with errors. - go/types does not "convert" untyped nil values to target types, but here we do. This is unchanged from how types2 handled this before this CL. Change-Id: If45336d7ee679ece100f6d9d9f291a6ea55004d8 Reviewed-on: https://go-review.googlesource.com/c/go/+/302757 Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
32 lines
1.8 KiB
Go
32 lines
1.8 KiB
Go
// errorcheck
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// Copyright 2015 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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// Tests for golang.org/issue/11326.
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package main
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func main() {
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// The gc compiler implementation uses the minimally required 32bit
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// binary exponent, so these constants cannot be represented anymore
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// internally. However, the language spec does not preclude other
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// implementations from handling these. Don't check the error.
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// var _ = 1e2147483647 // "constant too large"
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// var _ = 1e646456993 // "constant too large"
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// Any implementation must be able to handle these constants at
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// compile time (even though they cannot be assigned to a float64).
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var _ = 1e646456992 // ERROR "1e\+646456992 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
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var _ = 1e64645699 // ERROR "1e\+64645699 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
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var _ = 1e6464569 // ERROR "1e\+6464569 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
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var _ = 1e646456 // ERROR "1e\+646456 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
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var _ = 1e64645 // ERROR "1e\+64645 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
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var _ = 1e6464 // ERROR "1e\+6464 overflows float64|floating-point constant overflow|overflows float64|overflows"
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var _ = 1e646 // ERROR "1e\+646 overflows float64|floating-point constant overflow|overflows float64|overflows"
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var _ = 1e309 // ERROR "1e\+309 overflows float64|floating-point constant overflow|overflows float64|overflows"
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var _ = 1e308
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}
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