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cmd/compile: use printer in vconv

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Change-Id: Ib30ed686448c4c0a5777cdf1d505ea06eb8b2a47
Reviewed-on: https://go-review.googlesource.com/27917
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Robert Griesemer 2016-08-24 22:15:07 -07:00
parent dc2a0d59a2
commit 73be5d82d4
1 changed files with 32 additions and 22 deletions
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54
src/cmd/compile/internal/gc/fmt.go
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@ -338,6 +338,8 @@ func jconv(n *Node, flag FmtFlag) string {
// Fmt "%V": Values
func vconv(v Val, flag FmtFlag) string {
var p printer
switch u := v.U.(type) {
case *Mpint:
if !u.Rune {
@ -347,17 +349,19 @@ func vconv(v Val, flag FmtFlag) string {
return bconv(u, 0)
}
x := u.Int64()
if ' ' <= x && x < utf8.RuneSelf && x != '\\' && x != '\'' {
return fmt.Sprintf("'%c'", int(x))
switch x := u.Int64(); {
case ' ' <= x && x < utf8.RuneSelf && x != '\\' && x != '\'':
p.f("'%c'", int(x))
case 0 <= x && x < 1<<16:
p.f("'\\u%04x'", uint(int(x)))
case 0 <= x && x <= utf8.MaxRune:
p.f("'\\U%08x'", uint64(x))
default:
p.f("('\\x00' + %v)", u)
}
if 0 <= x && x < 1<<16 {
return fmt.Sprintf("'\\u%04x'", uint(int(x)))
}
if 0 <= x && x <= utf8.MaxRune {
return fmt.Sprintf("'\\U%08x'", uint64(x))
}
return fmt.Sprintf("('\\x00' + %v)", u)
case *Mpflt:
if flag&FmtSharp != 0 {
@ -366,19 +370,22 @@ func vconv(v Val, flag FmtFlag) string {
return fconv(u, FmtSharp)
case *Mpcplx:
if flag&FmtSharp != 0 {
return fmt.Sprintf("(%v+%vi)", &u.Real, &u.Imag)
}
if v.U.(*Mpcplx).Real.CmpFloat64(0) == 0 {
return fmt.Sprintf("%vi", fconv(&u.Imag, FmtSharp))
}
if v.U.(*Mpcplx).Imag.CmpFloat64(0) == 0 {
switch {
case flag&FmtSharp != 0:
p.f("(%v+%vi)", &u.Real, &u.Imag)
case v.U.(*Mpcplx).Real.CmpFloat64(0) == 0:
p.f("%vi", fconv(&u.Imag, FmtSharp))
case v.U.(*Mpcplx).Imag.CmpFloat64(0) == 0:
return fconv(&u.Real, FmtSharp)
case v.U.(*Mpcplx).Imag.CmpFloat64(0) < 0:
p.f("(%v%vi)", fconv(&u.Real, FmtSharp), fconv(&u.Imag, FmtSharp))
default:
p.f("(%v+%vi)", fconv(&u.Real, FmtSharp), fconv(&u.Imag, FmtSharp))
}
if v.U.(*Mpcplx).Imag.CmpFloat64(0) < 0 {
return fmt.Sprintf("(%v%vi)", fconv(&u.Real, FmtSharp), fconv(&u.Imag, FmtSharp))
}
return fmt.Sprintf("(%v+%vi)", fconv(&u.Real, FmtSharp), fconv(&u.Imag, FmtSharp))
case string:
return strconv.Quote(u)
@ -391,9 +398,12 @@ func vconv(v Val, flag FmtFlag) string {
case *NilVal:
return "nil"
default:
p.f("<ctype=%d>", v.Ctype())
}
return fmt.Sprintf("<ctype=%d>", v.Ctype())
return p.String()
}
/*