From 473acc61c8392dc7ae303d91568e179c4f105a76 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Tue, 2 Jul 2019 12:12:53 +0200 Subject: add black list --- vendor/golang.org/x/text/message/print.go | 979 ------------------------------ 1 file changed, 979 deletions(-) delete mode 100644 vendor/golang.org/x/text/message/print.go (limited to 'vendor/golang.org/x/text/message/print.go') diff --git a/vendor/golang.org/x/text/message/print.go b/vendor/golang.org/x/text/message/print.go deleted file mode 100644 index 777e172..0000000 --- a/vendor/golang.org/x/text/message/print.go +++ /dev/null @@ -1,979 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package message - -import ( - "bytes" - "fmt" // TODO: consider copying interfaces from package fmt to avoid dependency. - "math" - "reflect" - "sync" - "unicode/utf8" - - "golang.org/x/text/internal/format" - "golang.org/x/text/internal/number" - "golang.org/x/text/language" - "golang.org/x/text/message/catalog" -) - -// Strings for use with buffer.WriteString. -// This is less overhead than using buffer.Write with byte arrays. -const ( - commaSpaceString = ", " - nilAngleString = "" - nilParenString = "(nil)" - nilString = "nil" - mapString = "map[" - percentBangString = "%!" - missingString = "(MISSING)" - badIndexString = "(BADINDEX)" - panicString = "(PANIC=" - extraString = "%!(EXTRA " - badWidthString = "%!(BADWIDTH)" - badPrecString = "%!(BADPREC)" - noVerbString = "%!(NOVERB)" - - invReflectString = "" -) - -var printerPool = sync.Pool{ - New: func() interface{} { return new(printer) }, -} - -// newPrinter allocates a new printer struct or grabs a cached one. -func newPrinter(pp *Printer) *printer { - p := printerPool.Get().(*printer) - p.Printer = *pp - // TODO: cache most of the following call. - p.catContext = pp.cat.Context(pp.tag, p) - - p.panicking = false - p.erroring = false - p.fmt.init(&p.Buffer) - return p -} - -// free saves used printer structs in printerFree; avoids an allocation per invocation. -func (p *printer) free() { - p.Buffer.Reset() - p.arg = nil - p.value = reflect.Value{} - printerPool.Put(p) -} - -// printer is used to store a printer's state. -// It implements "golang.org/x/text/internal/format".State. -type printer struct { - Printer - - // the context for looking up message translations - catContext *catalog.Context - - // buffer for accumulating output. - bytes.Buffer - - // arg holds the current item, as an interface{}. - arg interface{} - // value is used instead of arg for reflect values. - value reflect.Value - - // fmt is used to format basic items such as integers or strings. - fmt formatInfo - - // panicking is set by catchPanic to avoid infinite panic, recover, panic, ... recursion. - panicking bool - // erroring is set when printing an error string to guard against calling handleMethods. - erroring bool -} - -// Language implements "golang.org/x/text/internal/format".State. -func (p *printer) Language() language.Tag { return p.tag } - -func (p *printer) Width() (wid int, ok bool) { return p.fmt.Width, p.fmt.WidthPresent } - -func (p *printer) Precision() (prec int, ok bool) { return p.fmt.Prec, p.fmt.PrecPresent } - -func (p *printer) Flag(b int) bool { - switch b { - case '-': - return p.fmt.Minus - case '+': - return p.fmt.Plus || p.fmt.PlusV - case '#': - return p.fmt.Sharp || p.fmt.SharpV - case ' ': - return p.fmt.Space - case '0': - return p.fmt.Zero - } - return false -} - -// getField gets the i'th field of the struct value. -// If the field is itself is an interface, return a value for -// the thing inside the interface, not the interface itself. -func getField(v reflect.Value, i int) reflect.Value { - val := v.Field(i) - if val.Kind() == reflect.Interface && !val.IsNil() { - val = val.Elem() - } - return val -} - -func (p *printer) unknownType(v reflect.Value) { - if !v.IsValid() { - p.WriteString(nilAngleString) - return - } - p.WriteByte('?') - p.WriteString(v.Type().String()) - p.WriteByte('?') -} - -func (p *printer) badVerb(verb rune) { - p.erroring = true - p.WriteString(percentBangString) - p.WriteRune(verb) - p.WriteByte('(') - switch { - case p.arg != nil: - p.WriteString(reflect.TypeOf(p.arg).String()) - p.WriteByte('=') - p.printArg(p.arg, 'v') - case p.value.IsValid(): - p.WriteString(p.value.Type().String()) - p.WriteByte('=') - p.printValue(p.value, 'v', 0) - default: - p.WriteString(nilAngleString) - } - p.WriteByte(')') - p.erroring = false -} - -func (p *printer) fmtBool(v bool, verb rune) { - switch verb { - case 't', 'v': - p.fmt.fmt_boolean(v) - default: - p.badVerb(verb) - } -} - -// fmt0x64 formats a uint64 in hexadecimal and prefixes it with 0x or -// not, as requested, by temporarily setting the sharp flag. -func (p *printer) fmt0x64(v uint64, leading0x bool) { - sharp := p.fmt.Sharp - p.fmt.Sharp = leading0x - p.fmt.fmt_integer(v, 16, unsigned, ldigits) - p.fmt.Sharp = sharp -} - -// fmtInteger formats a signed or unsigned integer. -func (p *printer) fmtInteger(v uint64, isSigned bool, verb rune) { - switch verb { - case 'v': - if p.fmt.SharpV && !isSigned { - p.fmt0x64(v, true) - return - } - fallthrough - case 'd': - if p.fmt.Sharp || p.fmt.SharpV { - p.fmt.fmt_integer(v, 10, isSigned, ldigits) - } else { - p.fmtDecimalInt(v, isSigned) - } - case 'b': - p.fmt.fmt_integer(v, 2, isSigned, ldigits) - case 'o': - p.fmt.fmt_integer(v, 8, isSigned, ldigits) - case 'x': - p.fmt.fmt_integer(v, 16, isSigned, ldigits) - case 'X': - p.fmt.fmt_integer(v, 16, isSigned, udigits) - case 'c': - p.fmt.fmt_c(v) - case 'q': - if v <= utf8.MaxRune { - p.fmt.fmt_qc(v) - } else { - p.badVerb(verb) - } - case 'U': - p.fmt.fmt_unicode(v) - default: - p.badVerb(verb) - } -} - -// fmtFloat formats a float. The default precision for each verb -// is specified as last argument in the call to fmt_float. -func (p *printer) fmtFloat(v float64, size int, verb rune) { - switch verb { - case 'b': - p.fmt.fmt_float(v, size, verb, -1) - case 'v': - verb = 'g' - fallthrough - case 'g', 'G': - if p.fmt.Sharp || p.fmt.SharpV { - p.fmt.fmt_float(v, size, verb, -1) - } else { - p.fmtVariableFloat(v, size) - } - case 'e', 'E': - if p.fmt.Sharp || p.fmt.SharpV { - p.fmt.fmt_float(v, size, verb, 6) - } else { - p.fmtScientific(v, size, 6) - } - case 'f', 'F': - if p.fmt.Sharp || p.fmt.SharpV { - p.fmt.fmt_float(v, size, verb, 6) - } else { - p.fmtDecimalFloat(v, size, 6) - } - default: - p.badVerb(verb) - } -} - -func (p *printer) setFlags(f *number.Formatter) { - f.Flags &^= number.ElideSign - if p.fmt.Plus || p.fmt.Space { - f.Flags |= number.AlwaysSign - if !p.fmt.Plus { - f.Flags |= number.ElideSign - } - } else { - f.Flags &^= number.AlwaysSign - } -} - -func (p *printer) updatePadding(f *number.Formatter) { - f.Flags &^= number.PadMask - if p.fmt.Minus { - f.Flags |= number.PadAfterSuffix - } else { - f.Flags |= number.PadBeforePrefix - } - f.PadRune = ' ' - f.FormatWidth = uint16(p.fmt.Width) -} - -func (p *printer) initDecimal(minFrac, maxFrac int) { - f := &p.toDecimal - f.MinIntegerDigits = 1 - f.MaxIntegerDigits = 0 - f.MinFractionDigits = uint8(minFrac) - f.MaxFractionDigits = int16(maxFrac) - p.setFlags(f) - f.PadRune = 0 - if p.fmt.WidthPresent { - if p.fmt.Zero { - wid := p.fmt.Width - // Use significant integers for this. - // TODO: this is not the same as width, but so be it. - if f.MinFractionDigits > 0 { - wid -= 1 + int(f.MinFractionDigits) - } - if p.fmt.Plus || p.fmt.Space { - wid-- - } - if wid > 0 && wid > int(f.MinIntegerDigits) { - f.MinIntegerDigits = uint8(wid) - } - } - p.updatePadding(f) - } -} - -func (p *printer) initScientific(minFrac, maxFrac int) { - f := &p.toScientific - if maxFrac < 0 { - f.SetPrecision(maxFrac) - } else { - f.SetPrecision(maxFrac + 1) - f.MinFractionDigits = uint8(minFrac) - f.MaxFractionDigits = int16(maxFrac) - } - f.MinExponentDigits = 2 - p.setFlags(f) - f.PadRune = 0 - if p.fmt.WidthPresent { - f.Flags &^= number.PadMask - if p.fmt.Zero { - f.PadRune = f.Digit(0) - f.Flags |= number.PadAfterPrefix - } else { - f.PadRune = ' ' - f.Flags |= number.PadBeforePrefix - } - p.updatePadding(f) - } -} - -func (p *printer) fmtDecimalInt(v uint64, isSigned bool) { - var d number.Decimal - - f := &p.toDecimal - if p.fmt.PrecPresent { - p.setFlags(f) - f.MinIntegerDigits = uint8(p.fmt.Prec) - f.MaxIntegerDigits = 0 - f.MinFractionDigits = 0 - f.MaxFractionDigits = 0 - if p.fmt.WidthPresent { - p.updatePadding(f) - } - } else { - p.initDecimal(0, 0) - } - d.ConvertInt(p.toDecimal.RoundingContext, isSigned, v) - - out := p.toDecimal.Format([]byte(nil), &d) - p.Buffer.Write(out) -} - -func (p *printer) fmtDecimalFloat(v float64, size, prec int) { - var d number.Decimal - if p.fmt.PrecPresent { - prec = p.fmt.Prec - } - p.initDecimal(prec, prec) - d.ConvertFloat(p.toDecimal.RoundingContext, v, size) - - out := p.toDecimal.Format([]byte(nil), &d) - p.Buffer.Write(out) -} - -func (p *printer) fmtVariableFloat(v float64, size int) { - prec := -1 - if p.fmt.PrecPresent { - prec = p.fmt.Prec - } - var d number.Decimal - p.initScientific(0, prec) - d.ConvertFloat(p.toScientific.RoundingContext, v, size) - - // Copy logic of 'g' formatting from strconv. It is simplified a bit as - // we don't have to mind having prec > len(d.Digits). - shortest := prec < 0 - ePrec := prec - if shortest { - prec = len(d.Digits) - ePrec = 6 - } else if prec == 0 { - prec = 1 - ePrec = 1 - } - exp := int(d.Exp) - 1 - if exp < -4 || exp >= ePrec { - p.initScientific(0, prec) - - out := p.toScientific.Format([]byte(nil), &d) - p.Buffer.Write(out) - } else { - if prec > int(d.Exp) { - prec = len(d.Digits) - } - if prec -= int(d.Exp); prec < 0 { - prec = 0 - } - p.initDecimal(0, prec) - - out := p.toDecimal.Format([]byte(nil), &d) - p.Buffer.Write(out) - } -} - -func (p *printer) fmtScientific(v float64, size, prec int) { - var d number.Decimal - if p.fmt.PrecPresent { - prec = p.fmt.Prec - } - p.initScientific(prec, prec) - rc := p.toScientific.RoundingContext - d.ConvertFloat(rc, v, size) - - out := p.toScientific.Format([]byte(nil), &d) - p.Buffer.Write(out) - -} - -// fmtComplex formats a complex number v with -// r = real(v) and j = imag(v) as (r+ji) using -// fmtFloat for r and j formatting. -func (p *printer) fmtComplex(v complex128, size int, verb rune) { - // Make sure any unsupported verbs are found before the - // calls to fmtFloat to not generate an incorrect error string. - switch verb { - case 'v', 'b', 'g', 'G', 'f', 'F', 'e', 'E': - p.WriteByte('(') - p.fmtFloat(real(v), size/2, verb) - // Imaginary part always has a sign. - if math.IsNaN(imag(v)) { - // By CLDR's rules, NaNs do not use patterns or signs. As this code - // relies on AlwaysSign working for imaginary parts, we need to - // manually handle NaNs. - f := &p.toScientific - p.setFlags(f) - p.updatePadding(f) - p.setFlags(f) - nan := f.Symbol(number.SymNan) - extra := 0 - if w, ok := p.Width(); ok { - extra = w - utf8.RuneCountInString(nan) - 1 - } - if f.Flags&number.PadAfterNumber == 0 { - for ; extra > 0; extra-- { - p.WriteRune(f.PadRune) - } - } - p.WriteString(f.Symbol(number.SymPlusSign)) - p.WriteString(nan) - for ; extra > 0; extra-- { - p.WriteRune(f.PadRune) - } - p.WriteString("i)") - return - } - oldPlus := p.fmt.Plus - p.fmt.Plus = true - p.fmtFloat(imag(v), size/2, verb) - p.WriteString("i)") // TODO: use symbol? - p.fmt.Plus = oldPlus - default: - p.badVerb(verb) - } -} - -func (p *printer) fmtString(v string, verb rune) { - switch verb { - case 'v': - if p.fmt.SharpV { - p.fmt.fmt_q(v) - } else { - p.fmt.fmt_s(v) - } - case 's': - p.fmt.fmt_s(v) - case 'x': - p.fmt.fmt_sx(v, ldigits) - case 'X': - p.fmt.fmt_sx(v, udigits) - case 'q': - p.fmt.fmt_q(v) - default: - p.badVerb(verb) - } -} - -func (p *printer) fmtBytes(v []byte, verb rune, typeString string) { - switch verb { - case 'v', 'd': - if p.fmt.SharpV { - p.WriteString(typeString) - if v == nil { - p.WriteString(nilParenString) - return - } - p.WriteByte('{') - for i, c := range v { - if i > 0 { - p.WriteString(commaSpaceString) - } - p.fmt0x64(uint64(c), true) - } - p.WriteByte('}') - } else { - p.WriteByte('[') - for i, c := range v { - if i > 0 { - p.WriteByte(' ') - } - p.fmt.fmt_integer(uint64(c), 10, unsigned, ldigits) - } - p.WriteByte(']') - } - case 's': - p.fmt.fmt_s(string(v)) - case 'x': - p.fmt.fmt_bx(v, ldigits) - case 'X': - p.fmt.fmt_bx(v, udigits) - case 'q': - p.fmt.fmt_q(string(v)) - default: - p.printValue(reflect.ValueOf(v), verb, 0) - } -} - -func (p *printer) fmtPointer(value reflect.Value, verb rune) { - var u uintptr - switch value.Kind() { - case reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr, reflect.Slice, reflect.UnsafePointer: - u = value.Pointer() - default: - p.badVerb(verb) - return - } - - switch verb { - case 'v': - if p.fmt.SharpV { - p.WriteByte('(') - p.WriteString(value.Type().String()) - p.WriteString(")(") - if u == 0 { - p.WriteString(nilString) - } else { - p.fmt0x64(uint64(u), true) - } - p.WriteByte(')') - } else { - if u == 0 { - p.fmt.padString(nilAngleString) - } else { - p.fmt0x64(uint64(u), !p.fmt.Sharp) - } - } - case 'p': - p.fmt0x64(uint64(u), !p.fmt.Sharp) - case 'b', 'o', 'd', 'x', 'X': - if verb == 'd' { - p.fmt.Sharp = true // Print as standard go. TODO: does this make sense? - } - p.fmtInteger(uint64(u), unsigned, verb) - default: - p.badVerb(verb) - } -} - -func (p *printer) catchPanic(arg interface{}, verb rune) { - if err := recover(); err != nil { - // If it's a nil pointer, just say "". The likeliest causes are a - // Stringer that fails to guard against nil or a nil pointer for a - // value receiver, and in either case, "" is a nice result. - if v := reflect.ValueOf(arg); v.Kind() == reflect.Ptr && v.IsNil() { - p.WriteString(nilAngleString) - return - } - // Otherwise print a concise panic message. Most of the time the panic - // value will print itself nicely. - if p.panicking { - // Nested panics; the recursion in printArg cannot succeed. - panic(err) - } - - oldFlags := p.fmt.Parser - // For this output we want default behavior. - p.fmt.ClearFlags() - - p.WriteString(percentBangString) - p.WriteRune(verb) - p.WriteString(panicString) - p.panicking = true - p.printArg(err, 'v') - p.panicking = false - p.WriteByte(')') - - p.fmt.Parser = oldFlags - } -} - -func (p *printer) handleMethods(verb rune) (handled bool) { - if p.erroring { - return - } - // Is it a Formatter? - if formatter, ok := p.arg.(format.Formatter); ok { - handled = true - defer p.catchPanic(p.arg, verb) - formatter.Format(p, verb) - return - } - if formatter, ok := p.arg.(fmt.Formatter); ok { - handled = true - defer p.catchPanic(p.arg, verb) - formatter.Format(p, verb) - return - } - - // If we're doing Go syntax and the argument knows how to supply it, take care of it now. - if p.fmt.SharpV { - if stringer, ok := p.arg.(fmt.GoStringer); ok { - handled = true - defer p.catchPanic(p.arg, verb) - // Print the result of GoString unadorned. - p.fmt.fmt_s(stringer.GoString()) - return - } - } else { - // If a string is acceptable according to the format, see if - // the value satisfies one of the string-valued interfaces. - // Println etc. set verb to %v, which is "stringable". - switch verb { - case 'v', 's', 'x', 'X', 'q': - // Is it an error or Stringer? - // The duplication in the bodies is necessary: - // setting handled and deferring catchPanic - // must happen before calling the method. - switch v := p.arg.(type) { - case error: - handled = true - defer p.catchPanic(p.arg, verb) - p.fmtString(v.Error(), verb) - return - - case fmt.Stringer: - handled = true - defer p.catchPanic(p.arg, verb) - p.fmtString(v.String(), verb) - return - } - } - } - return false -} - -func (p *printer) printArg(arg interface{}, verb rune) { - p.arg = arg - p.value = reflect.Value{} - - if arg == nil { - switch verb { - case 'T', 'v': - p.fmt.padString(nilAngleString) - default: - p.badVerb(verb) - } - return - } - - // Special processing considerations. - // %T (the value's type) and %p (its address) are special; we always do them first. - switch verb { - case 'T': - p.fmt.fmt_s(reflect.TypeOf(arg).String()) - return - case 'p': - p.fmtPointer(reflect.ValueOf(arg), 'p') - return - } - - // Some types can be done without reflection. - switch f := arg.(type) { - case bool: - p.fmtBool(f, verb) - case float32: - p.fmtFloat(float64(f), 32, verb) - case float64: - p.fmtFloat(f, 64, verb) - case complex64: - p.fmtComplex(complex128(f), 64, verb) - case complex128: - p.fmtComplex(f, 128, verb) - case int: - p.fmtInteger(uint64(f), signed, verb) - case int8: - p.fmtInteger(uint64(f), signed, verb) - case int16: - p.fmtInteger(uint64(f), signed, verb) - case int32: - p.fmtInteger(uint64(f), signed, verb) - case int64: - p.fmtInteger(uint64(f), signed, verb) - case uint: - p.fmtInteger(uint64(f), unsigned, verb) - case uint8: - p.fmtInteger(uint64(f), unsigned, verb) - case uint16: - p.fmtInteger(uint64(f), unsigned, verb) - case uint32: - p.fmtInteger(uint64(f), unsigned, verb) - case uint64: - p.fmtInteger(f, unsigned, verb) - case uintptr: - p.fmtInteger(uint64(f), unsigned, verb) - case string: - p.fmtString(f, verb) - case []byte: - p.fmtBytes(f, verb, "[]byte") - case reflect.Value: - // Handle extractable values with special methods - // since printValue does not handle them at depth 0. - if f.IsValid() && f.CanInterface() { - p.arg = f.Interface() - if p.handleMethods(verb) { - return - } - } - p.printValue(f, verb, 0) - default: - // If the type is not simple, it might have methods. - if !p.handleMethods(verb) { - // Need to use reflection, since the type had no - // interface methods that could be used for formatting. - p.printValue(reflect.ValueOf(f), verb, 0) - } - } -} - -// printValue is similar to printArg but starts with a reflect value, not an interface{} value. -// It does not handle 'p' and 'T' verbs because these should have been already handled by printArg. -func (p *printer) printValue(value reflect.Value, verb rune, depth int) { - // Handle values with special methods if not already handled by printArg (depth == 0). - if depth > 0 && value.IsValid() && value.CanInterface() { - p.arg = value.Interface() - if p.handleMethods(verb) { - return - } - } - p.arg = nil - p.value = value - - switch f := value; value.Kind() { - case reflect.Invalid: - if depth == 0 { - p.WriteString(invReflectString) - } else { - switch verb { - case 'v': - p.WriteString(nilAngleString) - default: - p.badVerb(verb) - } - } - case reflect.Bool: - p.fmtBool(f.Bool(), verb) - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - p.fmtInteger(uint64(f.Int()), signed, verb) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - p.fmtInteger(f.Uint(), unsigned, verb) - case reflect.Float32: - p.fmtFloat(f.Float(), 32, verb) - case reflect.Float64: - p.fmtFloat(f.Float(), 64, verb) - case reflect.Complex64: - p.fmtComplex(f.Complex(), 64, verb) - case reflect.Complex128: - p.fmtComplex(f.Complex(), 128, verb) - case reflect.String: - p.fmtString(f.String(), verb) - case reflect.Map: - if p.fmt.SharpV { - p.WriteString(f.Type().String()) - if f.IsNil() { - p.WriteString(nilParenString) - return - } - p.WriteByte('{') - } else { - p.WriteString(mapString) - } - keys := f.MapKeys() - for i, key := range keys { - if i > 0 { - if p.fmt.SharpV { - p.WriteString(commaSpaceString) - } else { - p.WriteByte(' ') - } - } - p.printValue(key, verb, depth+1) - p.WriteByte(':') - p.printValue(f.MapIndex(key), verb, depth+1) - } - if p.fmt.SharpV { - p.WriteByte('}') - } else { - p.WriteByte(']') - } - case reflect.Struct: - if p.fmt.SharpV { - p.WriteString(f.Type().String()) - } - p.WriteByte('{') - for i := 0; i < f.NumField(); i++ { - if i > 0 { - if p.fmt.SharpV { - p.WriteString(commaSpaceString) - } else { - p.WriteByte(' ') - } - } - if p.fmt.PlusV || p.fmt.SharpV { - if name := f.Type().Field(i).Name; name != "" { - p.WriteString(name) - p.WriteByte(':') - } - } - p.printValue(getField(f, i), verb, depth+1) - } - p.WriteByte('}') - case reflect.Interface: - value := f.Elem() - if !value.IsValid() { - if p.fmt.SharpV { - p.WriteString(f.Type().String()) - p.WriteString(nilParenString) - } else { - p.WriteString(nilAngleString) - } - } else { - p.printValue(value, verb, depth+1) - } - case reflect.Array, reflect.Slice: - switch verb { - case 's', 'q', 'x', 'X': - // Handle byte and uint8 slices and arrays special for the above verbs. - t := f.Type() - if t.Elem().Kind() == reflect.Uint8 { - var bytes []byte - if f.Kind() == reflect.Slice { - bytes = f.Bytes() - } else if f.CanAddr() { - bytes = f.Slice(0, f.Len()).Bytes() - } else { - // We have an array, but we cannot Slice() a non-addressable array, - // so we build a slice by hand. This is a rare case but it would be nice - // if reflection could help a little more. - bytes = make([]byte, f.Len()) - for i := range bytes { - bytes[i] = byte(f.Index(i).Uint()) - } - } - p.fmtBytes(bytes, verb, t.String()) - return - } - } - if p.fmt.SharpV { - p.WriteString(f.Type().String()) - if f.Kind() == reflect.Slice && f.IsNil() { - p.WriteString(nilParenString) - return - } - p.WriteByte('{') - for i := 0; i < f.Len(); i++ { - if i > 0 { - p.WriteString(commaSpaceString) - } - p.printValue(f.Index(i), verb, depth+1) - } - p.WriteByte('}') - } else { - p.WriteByte('[') - for i := 0; i < f.Len(); i++ { - if i > 0 { - p.WriteByte(' ') - } - p.printValue(f.Index(i), verb, depth+1) - } - p.WriteByte(']') - } - case reflect.Ptr: - // pointer to array or slice or struct? ok at top level - // but not embedded (avoid loops) - if depth == 0 && f.Pointer() != 0 { - switch a := f.Elem(); a.Kind() { - case reflect.Array, reflect.Slice, reflect.Struct, reflect.Map: - p.WriteByte('&') - p.printValue(a, verb, depth+1) - return - } - } - fallthrough - case reflect.Chan, reflect.Func, reflect.UnsafePointer: - p.fmtPointer(f, verb) - default: - p.unknownType(f) - } -} - -func (p *printer) badArgNum(verb rune) { - p.WriteString(percentBangString) - p.WriteRune(verb) - p.WriteString(badIndexString) -} - -func (p *printer) missingArg(verb rune) { - p.WriteString(percentBangString) - p.WriteRune(verb) - p.WriteString(missingString) -} - -func (p *printer) doPrintf(fmt string) { - for p.fmt.Parser.SetFormat(fmt); p.fmt.Scan(); { - switch p.fmt.Status { - case format.StatusText: - p.WriteString(p.fmt.Text()) - case format.StatusSubstitution: - p.printArg(p.Arg(p.fmt.ArgNum), p.fmt.Verb) - case format.StatusBadWidthSubstitution: - p.WriteString(badWidthString) - p.printArg(p.Arg(p.fmt.ArgNum), p.fmt.Verb) - case format.StatusBadPrecSubstitution: - p.WriteString(badPrecString) - p.printArg(p.Arg(p.fmt.ArgNum), p.fmt.Verb) - case format.StatusNoVerb: - p.WriteString(noVerbString) - case format.StatusBadArgNum: - p.badArgNum(p.fmt.Verb) - case format.StatusMissingArg: - p.missingArg(p.fmt.Verb) - default: - panic("unreachable") - } - } - - // Check for extra arguments, but only if there was at least one ordered - // argument. Note that this behavior is necessarily different from fmt: - // different variants of messages may opt to drop some or all of the - // arguments. - if !p.fmt.Reordered && p.fmt.ArgNum < len(p.fmt.Args) && p.fmt.ArgNum != 0 { - p.fmt.ClearFlags() - p.WriteString(extraString) - for i, arg := range p.fmt.Args[p.fmt.ArgNum:] { - if i > 0 { - p.WriteString(commaSpaceString) - } - if arg == nil { - p.WriteString(nilAngleString) - } else { - p.WriteString(reflect.TypeOf(arg).String()) - p.WriteString("=") - p.printArg(arg, 'v') - } - } - p.WriteByte(')') - } -} - -func (p *printer) doPrint(a []interface{}) { - prevString := false - for argNum, arg := range a { - isString := arg != nil && reflect.TypeOf(arg).Kind() == reflect.String - // Add a space between two non-string arguments. - if argNum > 0 && !isString && !prevString { - p.WriteByte(' ') - } - p.printArg(arg, 'v') - prevString = isString - } -} - -// doPrintln is like doPrint but always adds a space between arguments -// and a newline after the last argument. -func (p *printer) doPrintln(a []interface{}) { - for argNum, arg := range a { - if argNum > 0 { - p.WriteByte(' ') - } - p.printArg(arg, 'v') - } - p.WriteByte('\n') -} -- cgit v1.2.3