gcc/libgo/go/encoding/gob/dec_helpers.go
Ian Lance Taylor f8d9fa9e80 libgo, compiler: Upgrade libgo to Go 1.4, except for runtime.
This upgrades all of libgo other than the runtime package to
the Go 1.4 release.  In Go 1.4 much of the runtime was
rewritten into Go.  Merging that code will take more time and
will not change the API, so I'm putting it off for now.

There are a few runtime changes anyhow, to accomodate other
packages that rely on minor modifications to the runtime
support.

The compiler changes slightly to add a one-bit flag to each
type descriptor kind that is stored directly in an interface,
which for gccgo is currently only pointer types.  Another
one-bit flag (gcprog) is reserved because it is used by the gc
compiler, but gccgo does not currently use it.

There is another error check in the compiler since I ran
across it during testing.

gotools/:
	* Makefile.am (go_cmd_go_files): Sort entries.  Add generate.go.
	* Makefile.in: Rebuild.

From-SVN: r219627
2015-01-15 00:27:56 +00:00

469 lines
13 KiB
Go

// Created by decgen --output dec_helpers.go; DO NOT EDIT
// Copyright 2014 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 gob
import (
"math"
"reflect"
)
var decArrayHelper = map[reflect.Kind]decHelper{
reflect.Bool: decBoolArray,
reflect.Complex64: decComplex64Array,
reflect.Complex128: decComplex128Array,
reflect.Float32: decFloat32Array,
reflect.Float64: decFloat64Array,
reflect.Int: decIntArray,
reflect.Int16: decInt16Array,
reflect.Int32: decInt32Array,
reflect.Int64: decInt64Array,
reflect.Int8: decInt8Array,
reflect.String: decStringArray,
reflect.Uint: decUintArray,
reflect.Uint16: decUint16Array,
reflect.Uint32: decUint32Array,
reflect.Uint64: decUint64Array,
reflect.Uintptr: decUintptrArray,
}
var decSliceHelper = map[reflect.Kind]decHelper{
reflect.Bool: decBoolSlice,
reflect.Complex64: decComplex64Slice,
reflect.Complex128: decComplex128Slice,
reflect.Float32: decFloat32Slice,
reflect.Float64: decFloat64Slice,
reflect.Int: decIntSlice,
reflect.Int16: decInt16Slice,
reflect.Int32: decInt32Slice,
reflect.Int64: decInt64Slice,
reflect.Int8: decInt8Slice,
reflect.String: decStringSlice,
reflect.Uint: decUintSlice,
reflect.Uint16: decUint16Slice,
reflect.Uint32: decUint32Slice,
reflect.Uint64: decUint64Slice,
reflect.Uintptr: decUintptrSlice,
}
func decBoolArray(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decBoolSlice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decBoolSlice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]bool)
if !ok {
// It is kind bool but not type bool. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding bool array or slice: length exceeds input size (%d elements)", length)
}
slice[i] = state.decodeUint() != 0
}
return true
}
func decComplex64Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decComplex64Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decComplex64Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]complex64)
if !ok {
// It is kind complex64 but not type complex64. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding complex64 array or slice: length exceeds input size (%d elements)", length)
}
real := float32FromBits(state.decodeUint(), ovfl)
imag := float32FromBits(state.decodeUint(), ovfl)
slice[i] = complex(float32(real), float32(imag))
}
return true
}
func decComplex128Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decComplex128Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decComplex128Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]complex128)
if !ok {
// It is kind complex128 but not type complex128. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding complex128 array or slice: length exceeds input size (%d elements)", length)
}
real := float64FromBits(state.decodeUint())
imag := float64FromBits(state.decodeUint())
slice[i] = complex(real, imag)
}
return true
}
func decFloat32Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decFloat32Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decFloat32Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]float32)
if !ok {
// It is kind float32 but not type float32. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding float32 array or slice: length exceeds input size (%d elements)", length)
}
slice[i] = float32(float32FromBits(state.decodeUint(), ovfl))
}
return true
}
func decFloat64Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decFloat64Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decFloat64Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]float64)
if !ok {
// It is kind float64 but not type float64. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding float64 array or slice: length exceeds input size (%d elements)", length)
}
slice[i] = float64FromBits(state.decodeUint())
}
return true
}
func decIntArray(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decIntSlice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decIntSlice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]int)
if !ok {
// It is kind int but not type int. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding int array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeInt()
// MinInt and MaxInt
if x < ^int64(^uint(0)>>1) || int64(^uint(0)>>1) < x {
error_(ovfl)
}
slice[i] = int(x)
}
return true
}
func decInt16Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decInt16Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decInt16Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]int16)
if !ok {
// It is kind int16 but not type int16. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding int16 array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeInt()
if x < math.MinInt16 || math.MaxInt16 < x {
error_(ovfl)
}
slice[i] = int16(x)
}
return true
}
func decInt32Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decInt32Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decInt32Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]int32)
if !ok {
// It is kind int32 but not type int32. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding int32 array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeInt()
if x < math.MinInt32 || math.MaxInt32 < x {
error_(ovfl)
}
slice[i] = int32(x)
}
return true
}
func decInt64Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decInt64Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decInt64Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]int64)
if !ok {
// It is kind int64 but not type int64. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding int64 array or slice: length exceeds input size (%d elements)", length)
}
slice[i] = state.decodeInt()
}
return true
}
func decInt8Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decInt8Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decInt8Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]int8)
if !ok {
// It is kind int8 but not type int8. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding int8 array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeInt()
if x < math.MinInt8 || math.MaxInt8 < x {
error_(ovfl)
}
slice[i] = int8(x)
}
return true
}
func decStringArray(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decStringSlice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decStringSlice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]string)
if !ok {
// It is kind string but not type string. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding string array or slice: length exceeds input size (%d elements)", length)
}
u := state.decodeUint()
n := int(u)
if n < 0 || uint64(n) != u || n > state.b.Len() {
errorf("length of string exceeds input size (%d bytes)", u)
}
if n > state.b.Len() {
errorf("string data too long for buffer: %d", n)
}
// Read the data.
data := make([]byte, n)
if _, err := state.b.Read(data); err != nil {
errorf("error decoding string: %s", err)
}
slice[i] = string(data)
}
return true
}
func decUintArray(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decUintSlice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decUintSlice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]uint)
if !ok {
// It is kind uint but not type uint. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding uint array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeUint()
/*TODO if math.MaxUint32 < x {
error_(ovfl)
}*/
slice[i] = uint(x)
}
return true
}
func decUint16Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decUint16Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decUint16Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]uint16)
if !ok {
// It is kind uint16 but not type uint16. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding uint16 array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeUint()
if math.MaxUint16 < x {
error_(ovfl)
}
slice[i] = uint16(x)
}
return true
}
func decUint32Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decUint32Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decUint32Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]uint32)
if !ok {
// It is kind uint32 but not type uint32. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding uint32 array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeUint()
if math.MaxUint32 < x {
error_(ovfl)
}
slice[i] = uint32(x)
}
return true
}
func decUint64Array(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decUint64Slice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decUint64Slice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]uint64)
if !ok {
// It is kind uint64 but not type uint64. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding uint64 array or slice: length exceeds input size (%d elements)", length)
}
slice[i] = state.decodeUint()
}
return true
}
func decUintptrArray(state *decoderState, v reflect.Value, length int, ovfl error) bool {
// Can only slice if it is addressable.
if !v.CanAddr() {
return false
}
return decUintptrSlice(state, v.Slice(0, v.Len()), length, ovfl)
}
func decUintptrSlice(state *decoderState, v reflect.Value, length int, ovfl error) bool {
slice, ok := v.Interface().([]uintptr)
if !ok {
// It is kind uintptr but not type uintptr. TODO: We can handle this unsafely.
return false
}
for i := 0; i < length; i++ {
if state.b.Len() == 0 {
errorf("decoding uintptr array or slice: length exceeds input size (%d elements)", length)
}
x := state.decodeUint()
if uint64(^uintptr(0)) < x {
error_(ovfl)
}
slice[i] = uintptr(x)
}
return true
}