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path: root/vendor/golang.org/x/text/message/print.go
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Diffstat (limited to 'vendor/golang.org/x/text/message/print.go')
-rw-r--r--vendor/golang.org/x/text/message/print.go979
1 files changed, 0 insertions, 979 deletions
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 = "<nil>"
- nilParenString = "(nil)"
- nilString = "nil"
- mapString = "map["
- percentBangString = "%!"
- missingString = "(MISSING)"
- badIndexString = "(BADINDEX)"
- panicString = "(PANIC="
- extraString = "%!(EXTRA "
- badWidthString = "%!(BADWIDTH)"
- badPrecString = "%!(BADPREC)"
- noVerbString = "%!(NOVERB)"
-
- invReflectString = "<invalid reflect.Value>"
-)
-
-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 "<nil>". The likeliest causes are a
- // Stringer that fails to guard against nil or a nil pointer for a
- // value receiver, and in either case, "<nil>" 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')
-}