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These changes match the following gofrontend error messages: blank1.go:16:1: error: may not define methods on non-local type chan/perm.go:28:9: error: expected channel chan/perm.go:29:11: error: left operand of ‘<-’ must be channel chan/perm.go:69:9: error: argument must be channel complit1.go:25:16: error: attempt to slice object that is not array, slice, or string complit1.go:26:16: error: attempt to slice object that is not array, slice, or string complit1.go:27:17: error: attempt to slice object that is not array, slice, or string complit1.go:49:41: error: may only omit types within composite literals of slice, array, or map type complit1.go:50:14: error: expected struct, slice, array, or map type for composite literal convlit.go:24:9: error: invalid type conversion (cannot use type unsafe.Pointer as type string) convlit.go:25:9: error: invalid type conversion (cannot use type unsafe.Pointer as type float64) convlit.go:26:9: error: invalid type conversion (cannot use type unsafe.Pointer as type int) ddd1.go:63:9: error: invalid use of ‘...’ calling non-variadic function fixedbugs/bug176.go:12:18: error: index expression is not integer constant fixedbugs/bug332.go:17:10: error: use of undefined type ‘T’ fixedbugs/issue4232.go:22:16: error: integer constant overflow fixedbugs/issue4232.go:33:16: error: integer constant overflow fixedbugs/issue4232.go:44:25: error: integer constant overflow fixedbugs/issue4232.go:55:16: error: integer constant overflow fixedbugs/issue4458.go:19:14: error: type has no method ‘foo’ fixedbugs/issue5172.go:24:14: error: too many expressions for struct init.go:17:9: error: reference to undefined name ‘runtime’ initializerr.go:26:29: error: duplicate value for index 1 interface/explicit.go:60:14: error: type assertion only valid for interface types label.go:64:9: error: reference to undefined label ‘go2’ label1.go:18:97: error: continue statement not within for label1.go:22:97: error: continue statement not within for label1.go:106:89: error: continue statement not within for label1.go:108:26: error: invalid continue label ‘on’ label1.go:111:118: error: break statement not within for or switch or select label1.go:113:23: error: invalid break label ‘dance’ map1.go:64:9: error: not enough arguments map1.go:65:9: error: not enough arguments map1.go:67:9: error: argument 1 must be a map method2.go:36:11: error: reference to undefined field or method ‘val’ method2.go:37:11: error: reference to undefined field or method ‘val’ method2.go:41:12: error: method requires pointer (use ‘(*T).g’) syntax/chan1.go:13:19: error: send statement used as value; use select for non-blocking send syntax/chan1.go:17:11: error: send statement used as value; use select for non-blocking send Change-Id: I98047b60a376e3d2788836300f7fcac3f2c285cb Reviewed-on: https://go-review.googlesource.com/c/go/+/273527 Trust: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
75 lines
2.3 KiB
Go
75 lines
2.3 KiB
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 illegal assignments with both explicit and implicit conversions of literals are detected.
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// Does not compile.
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package main
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import "unsafe"
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// explicit conversion of constants
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var x1 = string(1)
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var x2 string = string(1)
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var x3 = int(1.5) // ERROR "convert|truncate"
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var x4 int = int(1.5) // ERROR "convert|truncate"
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var x5 = "a" + string(1)
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var x6 = int(1e100) // ERROR "overflow"
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var x7 = float32(1e1000) // ERROR "overflow"
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// unsafe.Pointer can only convert to/from uintptr
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var _ = string(unsafe.Pointer(uintptr(65))) // ERROR "convert|conversion"
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var _ = float64(unsafe.Pointer(uintptr(65))) // ERROR "convert|conversion"
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var _ = int(unsafe.Pointer(uintptr(65))) // ERROR "convert|conversion"
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// implicit conversions merit scrutiny
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var s string
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var bad1 string = 1 // ERROR "conver|incompatible|invalid|cannot"
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var bad2 = s + 1 // ERROR "conver|incompatible|invalid|cannot"
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var bad3 = s + 'a' // ERROR "conver|incompatible|invalid|cannot"
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var bad4 = "a" + 1 // ERROR "literals|incompatible|convert|invalid"
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var bad5 = "a" + 'a' // ERROR "literals|incompatible|convert|invalid"
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var bad6 int = 1.5 // ERROR "convert|truncate"
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var bad7 int = 1e100 // ERROR "overflow"
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var bad8 float32 = 1e200 // ERROR "overflow"
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// but these implicit conversions are okay
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var good1 string = "a"
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var good2 int = 1.0
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var good3 int = 1e9
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var good4 float64 = 1e20
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// explicit conversion of string is okay
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var _ = []rune("abc")
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var _ = []byte("abc")
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// implicit is not
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var _ []int = "abc" // ERROR "cannot use|incompatible|invalid"
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var _ []byte = "abc" // ERROR "cannot use|incompatible|invalid"
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// named string is okay
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type Tstring string
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var ss Tstring = "abc"
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var _ = []rune(ss)
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var _ = []byte(ss)
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// implicit is still not
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var _ []rune = ss // ERROR "cannot use|incompatible|invalid"
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var _ []byte = ss // ERROR "cannot use|incompatible|invalid"
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// named slice is now ok
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type Trune []rune
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type Tbyte []byte
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var _ = Trune("abc") // ok
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var _ = Tbyte("abc") // ok
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// implicit is still not
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var _ Trune = "abc" // ERROR "cannot use|incompatible|invalid"
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var _ Tbyte = "abc" // ERROR "cannot use|incompatible|invalid"
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