diff options
Diffstat (limited to 'vendor/github.com/pquerna/ffjson/fflib/v1/iota.go')
| -rw-r--r-- | vendor/github.com/pquerna/ffjson/fflib/v1/iota.go | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/vendor/github.com/pquerna/ffjson/fflib/v1/iota.go b/vendor/github.com/pquerna/ffjson/fflib/v1/iota.go deleted file mode 100644 index 3e50f0c41..000000000 --- a/vendor/github.com/pquerna/ffjson/fflib/v1/iota.go +++ /dev/null @@ -1,161 +0,0 @@ -/** - * Copyright 2014 Paul Querna - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -/* Portions of this file are on Go stdlib's strconv/iota.go */ -// Copyright 2009 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 v1 - -import ( - "io" -) - -const ( - digits = "0123456789abcdefghijklmnopqrstuvwxyz" - digits01 = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789" - digits10 = "0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999" -) - -var shifts = [len(digits) + 1]uint{ - 1 << 1: 1, - 1 << 2: 2, - 1 << 3: 3, - 1 << 4: 4, - 1 << 5: 5, -} - -var smallNumbers = [][]byte{ - []byte("0"), - []byte("1"), - []byte("2"), - []byte("3"), - []byte("4"), - []byte("5"), - []byte("6"), - []byte("7"), - []byte("8"), - []byte("9"), - []byte("10"), -} - -type FormatBitsWriter interface { - io.Writer - io.ByteWriter -} - -type FormatBitsScratch struct{} - -// -// DEPRECIATED: `scratch` is no longer used, FormatBits2 is available. -// -// FormatBits computes the string representation of u in the given base. -// If neg is set, u is treated as negative int64 value. If append_ is -// set, the string is appended to dst and the resulting byte slice is -// returned as the first result value; otherwise the string is returned -// as the second result value. -// -func FormatBits(scratch *FormatBitsScratch, dst FormatBitsWriter, u uint64, base int, neg bool) { - FormatBits2(dst, u, base, neg) -} - -// FormatBits2 computes the string representation of u in the given base. -// If neg is set, u is treated as negative int64 value. If append_ is -// set, the string is appended to dst and the resulting byte slice is -// returned as the first result value; otherwise the string is returned -// as the second result value. -// -func FormatBits2(dst FormatBitsWriter, u uint64, base int, neg bool) { - if base < 2 || base > len(digits) { - panic("strconv: illegal AppendInt/FormatInt base") - } - // fast path for small common numbers - if u <= 10 { - if neg { - dst.WriteByte('-') - } - dst.Write(smallNumbers[u]) - return - } - - // 2 <= base && base <= len(digits) - - var a = makeSlice(65) - // var a [64 + 1]byte // +1 for sign of 64bit value in base 2 - i := len(a) - - if neg { - u = -u - } - - // convert bits - if base == 10 { - // common case: use constants for / and % because - // the compiler can optimize it into a multiply+shift, - // and unroll loop - for u >= 100 { - i -= 2 - q := u / 100 - j := uintptr(u - q*100) - a[i+1] = digits01[j] - a[i+0] = digits10[j] - u = q - } - if u >= 10 { - i-- - q := u / 10 - a[i] = digits[uintptr(u-q*10)] - u = q - } - - } else if s := shifts[base]; s > 0 { - // base is power of 2: use shifts and masks instead of / and % - b := uint64(base) - m := uintptr(b) - 1 // == 1<<s - 1 - for u >= b { - i-- - a[i] = digits[uintptr(u)&m] - u >>= s - } - - } else { - // general case - b := uint64(base) - for u >= b { - i-- - a[i] = digits[uintptr(u%b)] - u /= b - } - } - - // u < base - i-- - a[i] = digits[uintptr(u)] - - // add sign, if any - if neg { - i-- - a[i] = '-' - } - - dst.Write(a[i:]) - - Pool(a) - - return -} |