From 8c12c6939aab9106db14ec2d11d983bc5b29fb2c Mon Sep 17 00:00:00 2001 From: Niall Sheridan Date: Sun, 7 Jul 2019 21:33:44 +0100 Subject: Switch to modules --- vendor/github.com/davecgh/go-spew/spew/bypass.go | 145 ----------------------- 1 file changed, 145 deletions(-) delete mode 100644 vendor/github.com/davecgh/go-spew/spew/bypass.go (limited to 'vendor/github.com/davecgh/go-spew/spew/bypass.go') diff --git a/vendor/github.com/davecgh/go-spew/spew/bypass.go b/vendor/github.com/davecgh/go-spew/spew/bypass.go deleted file mode 100644 index 7929947..0000000 --- a/vendor/github.com/davecgh/go-spew/spew/bypass.go +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright (c) 2015-2016 Dave Collins -// -// Permission to use, copy, modify, and distribute this software for any -// purpose with or without fee is hereby granted, provided that the above -// copyright notice and this permission notice appear in all copies. -// -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - -// NOTE: Due to the following build constraints, this file will only be compiled -// when the code is not running on Google App Engine, compiled by GopherJS, and -// "-tags safe" is not added to the go build command line. The "disableunsafe" -// tag is deprecated and thus should not be used. -// Go versions prior to 1.4 are disabled because they use a different layout -// for interfaces which make the implementation of unsafeReflectValue more complex. -// +build !js,!appengine,!safe,!disableunsafe,go1.4 - -package spew - -import ( - "reflect" - "unsafe" -) - -const ( - // UnsafeDisabled is a build-time constant which specifies whether or - // not access to the unsafe package is available. - UnsafeDisabled = false - - // ptrSize is the size of a pointer on the current arch. - ptrSize = unsafe.Sizeof((*byte)(nil)) -) - -type flag uintptr - -var ( - // flagRO indicates whether the value field of a reflect.Value - // is read-only. - flagRO flag - - // flagAddr indicates whether the address of the reflect.Value's - // value may be taken. - flagAddr flag -) - -// flagKindMask holds the bits that make up the kind -// part of the flags field. In all the supported versions, -// it is in the lower 5 bits. -const flagKindMask = flag(0x1f) - -// Different versions of Go have used different -// bit layouts for the flags type. This table -// records the known combinations. -var okFlags = []struct { - ro, addr flag -}{{ - // From Go 1.4 to 1.5 - ro: 1 << 5, - addr: 1 << 7, -}, { - // Up to Go tip. - ro: 1<<5 | 1<<6, - addr: 1 << 8, -}} - -var flagValOffset = func() uintptr { - field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag") - if !ok { - panic("reflect.Value has no flag field") - } - return field.Offset -}() - -// flagField returns a pointer to the flag field of a reflect.Value. -func flagField(v *reflect.Value) *flag { - return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset)) -} - -// unsafeReflectValue converts the passed reflect.Value into a one that bypasses -// the typical safety restrictions preventing access to unaddressable and -// unexported data. It works by digging the raw pointer to the underlying -// value out of the protected value and generating a new unprotected (unsafe) -// reflect.Value to it. -// -// This allows us to check for implementations of the Stringer and error -// interfaces to be used for pretty printing ordinarily unaddressable and -// inaccessible values such as unexported struct fields. -func unsafeReflectValue(v reflect.Value) reflect.Value { - if !v.IsValid() || (v.CanInterface() && v.CanAddr()) { - return v - } - flagFieldPtr := flagField(&v) - *flagFieldPtr &^= flagRO - *flagFieldPtr |= flagAddr - return v -} - -// Sanity checks against future reflect package changes -// to the type or semantics of the Value.flag field. -func init() { - field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag") - if !ok { - panic("reflect.Value has no flag field") - } - if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() { - panic("reflect.Value flag field has changed kind") - } - type t0 int - var t struct { - A t0 - // t0 will have flagEmbedRO set. - t0 - // a will have flagStickyRO set - a t0 - } - vA := reflect.ValueOf(t).FieldByName("A") - va := reflect.ValueOf(t).FieldByName("a") - vt0 := reflect.ValueOf(t).FieldByName("t0") - - // Infer flagRO from the difference between the flags - // for the (otherwise identical) fields in t. - flagPublic := *flagField(&vA) - flagWithRO := *flagField(&va) | *flagField(&vt0) - flagRO = flagPublic ^ flagWithRO - - // Infer flagAddr from the difference between a value - // taken from a pointer and not. - vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A") - flagNoPtr := *flagField(&vA) - flagPtr := *flagField(&vPtrA) - flagAddr = flagNoPtr ^ flagPtr - - // Check that the inferred flags tally with one of the known versions. - for _, f := range okFlags { - if flagRO == f.ro && flagAddr == f.addr { - return - } - } - panic("reflect.Value read-only flag has changed semantics") -} -- cgit v1.2.3