diff options
Diffstat (limited to 'vendor')
59 files changed, 3522 insertions, 42 deletions
diff --git a/vendor/github.com/davecgh/go-spew/LICENSE b/vendor/github.com/davecgh/go-spew/LICENSE new file mode 100644 index 000000000..c83641619 --- /dev/null +++ b/vendor/github.com/davecgh/go-spew/LICENSE @@ -0,0 +1,15 @@ +ISC License + +Copyright (c) 2012-2016 Dave Collins <dave@davec.name> + +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. diff --git a/vendor/github.com/davecgh/go-spew/spew/bypass.go b/vendor/github.com/davecgh/go-spew/spew/bypass.go new file mode 100644 index 000000000..8a4a6589a --- /dev/null +++ b/vendor/github.com/davecgh/go-spew/spew/bypass.go @@ -0,0 +1,152 @@ +// Copyright (c) 2015-2016 Dave Collins <dave@davec.name> +// +// 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. +// +build !js,!appengine,!safe,!disableunsafe + +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)) +) + +var ( + // offsetPtr, offsetScalar, and offsetFlag are the offsets for the + // internal reflect.Value fields. These values are valid before golang + // commit ecccf07e7f9d which changed the format. The are also valid + // after commit 82f48826c6c7 which changed the format again to mirror + // the original format. Code in the init function updates these offsets + // as necessary. + offsetPtr = uintptr(ptrSize) + offsetScalar = uintptr(0) + offsetFlag = uintptr(ptrSize * 2) + + // flagKindWidth and flagKindShift indicate various bits that the + // reflect package uses internally to track kind information. + // + // flagRO indicates whether or not the value field of a reflect.Value is + // read-only. + // + // flagIndir indicates whether the value field of a reflect.Value is + // the actual data or a pointer to the data. + // + // These values are valid before golang commit 90a7c3c86944 which + // changed their positions. Code in the init function updates these + // flags as necessary. + flagKindWidth = uintptr(5) + flagKindShift = uintptr(flagKindWidth - 1) + flagRO = uintptr(1 << 0) + flagIndir = uintptr(1 << 1) +) + +func init() { + // Older versions of reflect.Value stored small integers directly in the + // ptr field (which is named val in the older versions). Versions + // between commits ecccf07e7f9d and 82f48826c6c7 added a new field named + // scalar for this purpose which unfortunately came before the flag + // field, so the offset of the flag field is different for those + // versions. + // + // This code constructs a new reflect.Value from a known small integer + // and checks if the size of the reflect.Value struct indicates it has + // the scalar field. When it does, the offsets are updated accordingly. + vv := reflect.ValueOf(0xf00) + if unsafe.Sizeof(vv) == (ptrSize * 4) { + offsetScalar = ptrSize * 2 + offsetFlag = ptrSize * 3 + } + + // Commit 90a7c3c86944 changed the flag positions such that the low + // order bits are the kind. This code extracts the kind from the flags + // field and ensures it's the correct type. When it's not, the flag + // order has been changed to the newer format, so the flags are updated + // accordingly. + upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag) + upfv := *(*uintptr)(upf) + flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift) + if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) { + flagKindShift = 0 + flagRO = 1 << 5 + flagIndir = 1 << 6 + + // Commit adf9b30e5594 modified the flags to separate the + // flagRO flag into two bits which specifies whether or not the + // field is embedded. This causes flagIndir to move over a bit + // and means that flagRO is the combination of either of the + // original flagRO bit and the new bit. + // + // This code detects the change by extracting what used to be + // the indirect bit to ensure it's set. When it's not, the flag + // order has been changed to the newer format, so the flags are + // updated accordingly. + if upfv&flagIndir == 0 { + flagRO = 3 << 5 + flagIndir = 1 << 7 + } + } +} + +// 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) (rv reflect.Value) { + indirects := 1 + vt := v.Type() + upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr) + rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag)) + if rvf&flagIndir != 0 { + vt = reflect.PtrTo(v.Type()) + indirects++ + } else if offsetScalar != 0 { + // The value is in the scalar field when it's not one of the + // reference types. + switch vt.Kind() { + case reflect.Uintptr: + case reflect.Chan: + case reflect.Func: + case reflect.Map: + case reflect.Ptr: + case reflect.UnsafePointer: + default: + upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + + offsetScalar) + } + } + + pv := reflect.NewAt(vt, upv) + rv = pv + for i := 0; i < indirects; i++ { + rv = rv.Elem() + } + return rv +} diff --git a/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go new file mode 100644 index 000000000..1fe3cf3d5 --- /dev/null +++ b/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go @@ -0,0 +1,38 @@ +// Copyright (c) 2015-2016 Dave Collins <dave@davec.name> +// +// 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 running on Google App Engine, compiled by GopherJS, or +// "-tags safe" is added to the go build command line. The "disableunsafe" +// tag is deprecated and thus should not be used. +// +build js appengine safe disableunsafe + +package spew + +import "reflect" + +const ( + // UnsafeDisabled is a build-time constant which specifies whether or + // not access to the unsafe package is available. + UnsafeDisabled = true +) + +// unsafeReflectValue typically converts the passed reflect.Value into a one +// that bypasses the typical safety restrictions preventing access to +// unaddressable and unexported data. However, doing this relies on access to +// the unsafe package. This is a stub version which simply returns the passed +// reflect.Value when the unsafe package is not available. +func unsafeReflectValue(v reflect.Value) reflect.Value { + return v +} diff --git a/vendor/github.com/davecgh/go-spew/spew/common.go b/vendor/github.com/davecgh/go-spew/spew/common.go new file mode 100644 index 000000000..7c519ff47 --- /dev/null +++ b/vendor/github.com/davecgh/go-spew/spew/common.go @@ -0,0 +1,341 @@ +/* + * Copyright (c) 2013-2016 Dave Collins <dave@davec.name> + * + * 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. + */ + +package spew + +import ( + "bytes" + "fmt" + "io" + "reflect" + "sort" + "strconv" +) + +// Some constants in the form of bytes to avoid string overhead. This mirrors +// the technique used in the fmt package. +var ( + panicBytes = []byte("(PANIC=") + plusBytes = []byte("+") + iBytes = []byte("i") + trueBytes = []byte("true") + falseBytes = []byte("false") + interfaceBytes = []byte("(interface {})") + commaNewlineBytes = []byte(",\n") + newlineBytes = []byte("\n") + openBraceBytes = []byte("{") + openBraceNewlineBytes = []byte("{\n") + closeBraceBytes = []byte("}") + asteriskBytes = []byte("*") + colonBytes = []byte(":") + colonSpaceBytes = []byte(": ") + openParenBytes = []byte("(") + closeParenBytes = []byte(")") + spaceBytes = []byte(" ") + pointerChainBytes = []byte("->") + nilAngleBytes = []byte("<nil>") + maxNewlineBytes = []byte("<max depth reached>\n") + maxShortBytes = []byte("<max>") + circularBytes = []byte("<already shown>") + circularShortBytes = []byte("<shown>") + invalidAngleBytes = []byte("<invalid>") + openBracketBytes = []byte("[") + closeBracketBytes = []byte("]") + percentBytes = []byte("%") + precisionBytes = []byte(".") + openAngleBytes = []byte("<") + closeAngleBytes = []byte(">") + openMapBytes = []byte("map[") + closeMapBytes = []byte("]") + lenEqualsBytes = []byte("len=") + capEqualsBytes = []byte("cap=") +) + +// hexDigits is used to map a decimal value to a hex digit. +var hexDigits = "0123456789abcdef" + +// catchPanic handles any panics that might occur during the handleMethods +// calls. +func catchPanic(w io.Writer, v reflect.Value) { + if err := recover(); err != nil { + w.Write(panicBytes) + fmt.Fprintf(w, "%v", err) + w.Write(closeParenBytes) + } +} + +// handleMethods attempts to call the Error and String methods on the underlying +// type the passed reflect.Value represents and outputes the result to Writer w. +// +// It handles panics in any called methods by catching and displaying the error +// as the formatted value. +func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) { + // We need an interface to check if the type implements the error or + // Stringer interface. However, the reflect package won't give us an + // interface on certain things like unexported struct fields in order + // to enforce visibility rules. We use unsafe, when it's available, + // to bypass these restrictions since this package does not mutate the + // values. + if !v.CanInterface() { + if UnsafeDisabled { + return false + } + + v = unsafeReflectValue(v) + } + + // Choose whether or not to do error and Stringer interface lookups against + // the base type or a pointer to the base type depending on settings. + // Technically calling one of these methods with a pointer receiver can + // mutate the value, however, types which choose to satisify an error or + // Stringer interface with a pointer receiver should not be mutating their + // state inside these interface methods. + if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() { + v = unsafeReflectValue(v) + } + if v.CanAddr() { + v = v.Addr() + } + + // Is it an error or Stringer? + switch iface := v.Interface().(type) { + case error: + defer catchPanic(w, v) + if cs.ContinueOnMethod { + w.Write(openParenBytes) + w.Write([]byte(iface.Error())) + w.Write(closeParenBytes) + w.Write(spaceBytes) + return false + } + + w.Write([]byte(iface.Error())) + return true + + case fmt.Stringer: + defer catchPanic(w, v) + if cs.ContinueOnMethod { + w.Write(openParenBytes) + w.Write([]byte(iface.String())) + w.Write(closeParenBytes) + w.Write(spaceBytes) + return false + } + w.Write([]byte(iface.String())) + return true + } + return false +} + +// printBool outputs a boolean value as true or false to Writer w. +func printBool(w io.Writer, val bool) { + if val { + w.Write(trueBytes) + } else { + w.Write(falseBytes) + } +} + +// printInt outputs a signed integer value to Writer w. +func printInt(w io.Writer, val int64, base int) { + w.Write([]byte(strconv.FormatInt(val, base))) +} + +// printUint outputs an unsigned integer value to Writer w. +func printUint(w io.Writer, val uint64, base int) { + w.Write([]byte(strconv.FormatUint(val, base))) +} + +// printFloat outputs a floating point value using the specified precision, +// which is expected to be 32 or 64bit, to Writer w. +func printFloat(w io.Writer, val float64, precision int) { + w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision))) +} + +// printComplex outputs a complex value using the specified float precision +// for the real and imaginary parts to Writer w. +func printComplex(w io.Writer, c complex128, floatPrecision int) { + r := real(c) + w.Write(openParenBytes) + w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision))) + i := imag(c) + if i >= 0 { + w.Write(plusBytes) + } + w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision))) + w.Write(iBytes) + w.Write(closeParenBytes) +} + +// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x' +// prefix to Writer w. +func printHexPtr(w io.Writer, p uintptr) { + // Null pointer. + num := uint64(p) + if num == 0 { + w.Write(nilAngleBytes) + return + } + + // Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix + buf := make([]byte, 18) + + // It's simpler to construct the hex string right to |