mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-23 04:06:39 +00:00
886 lines
24 KiB
Go
886 lines
24 KiB
Go
/*
|
|
* Copyright 2021 ByteDance Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
package encoder
|
|
|
|
import (
|
|
`fmt`
|
|
`reflect`
|
|
`strconv`
|
|
`strings`
|
|
`unsafe`
|
|
|
|
`github.com/bytedance/sonic/internal/resolver`
|
|
`github.com/bytedance/sonic/internal/rt`
|
|
`github.com/bytedance/sonic/option`
|
|
)
|
|
|
|
type _Op uint8
|
|
|
|
const (
|
|
_OP_null _Op = iota + 1
|
|
_OP_empty_arr
|
|
_OP_empty_obj
|
|
_OP_bool
|
|
_OP_i8
|
|
_OP_i16
|
|
_OP_i32
|
|
_OP_i64
|
|
_OP_u8
|
|
_OP_u16
|
|
_OP_u32
|
|
_OP_u64
|
|
_OP_f32
|
|
_OP_f64
|
|
_OP_str
|
|
_OP_bin
|
|
_OP_quote
|
|
_OP_number
|
|
_OP_eface
|
|
_OP_iface
|
|
_OP_byte
|
|
_OP_text
|
|
_OP_deref
|
|
_OP_index
|
|
_OP_load
|
|
_OP_save
|
|
_OP_drop
|
|
_OP_drop_2
|
|
_OP_recurse
|
|
_OP_is_nil
|
|
_OP_is_nil_p1
|
|
_OP_is_zero_1
|
|
_OP_is_zero_2
|
|
_OP_is_zero_4
|
|
_OP_is_zero_8
|
|
_OP_is_zero_map
|
|
_OP_goto
|
|
_OP_map_iter
|
|
_OP_map_stop
|
|
_OP_map_check_key
|
|
_OP_map_write_key
|
|
_OP_map_value_next
|
|
_OP_slice_len
|
|
_OP_slice_next
|
|
_OP_marshal
|
|
_OP_marshal_p
|
|
_OP_marshal_text
|
|
_OP_marshal_text_p
|
|
_OP_cond_set
|
|
_OP_cond_testc
|
|
)
|
|
|
|
const (
|
|
_INT_SIZE = 32 << (^uint(0) >> 63)
|
|
_PTR_SIZE = 32 << (^uintptr(0) >> 63)
|
|
_PTR_BYTE = unsafe.Sizeof(uintptr(0))
|
|
)
|
|
|
|
const (
|
|
_MAX_ILBUF = 100000 // cutoff at 100k of IL instructions
|
|
_MAX_FIELDS = 50 // cutoff at 50 fields struct
|
|
)
|
|
|
|
var _OpNames = [256]string {
|
|
_OP_null : "null",
|
|
_OP_empty_arr : "empty_arr",
|
|
_OP_empty_obj : "empty_obj",
|
|
_OP_bool : "bool",
|
|
_OP_i8 : "i8",
|
|
_OP_i16 : "i16",
|
|
_OP_i32 : "i32",
|
|
_OP_i64 : "i64",
|
|
_OP_u8 : "u8",
|
|
_OP_u16 : "u16",
|
|
_OP_u32 : "u32",
|
|
_OP_u64 : "u64",
|
|
_OP_f32 : "f32",
|
|
_OP_f64 : "f64",
|
|
_OP_str : "str",
|
|
_OP_bin : "bin",
|
|
_OP_quote : "quote",
|
|
_OP_number : "number",
|
|
_OP_eface : "eface",
|
|
_OP_iface : "iface",
|
|
_OP_byte : "byte",
|
|
_OP_text : "text",
|
|
_OP_deref : "deref",
|
|
_OP_index : "index",
|
|
_OP_load : "load",
|
|
_OP_save : "save",
|
|
_OP_drop : "drop",
|
|
_OP_drop_2 : "drop_2",
|
|
_OP_recurse : "recurse",
|
|
_OP_is_nil : "is_nil",
|
|
_OP_is_nil_p1 : "is_nil_p1",
|
|
_OP_is_zero_1 : "is_zero_1",
|
|
_OP_is_zero_2 : "is_zero_2",
|
|
_OP_is_zero_4 : "is_zero_4",
|
|
_OP_is_zero_8 : "is_zero_8",
|
|
_OP_is_zero_map : "is_zero_map",
|
|
_OP_goto : "goto",
|
|
_OP_map_iter : "map_iter",
|
|
_OP_map_stop : "map_stop",
|
|
_OP_map_check_key : "map_check_key",
|
|
_OP_map_write_key : "map_write_key",
|
|
_OP_map_value_next : "map_value_next",
|
|
_OP_slice_len : "slice_len",
|
|
_OP_slice_next : "slice_next",
|
|
_OP_marshal : "marshal",
|
|
_OP_marshal_p : "marshal_p",
|
|
_OP_marshal_text : "marshal_text",
|
|
_OP_marshal_text_p : "marshal_text_p",
|
|
_OP_cond_set : "cond_set",
|
|
_OP_cond_testc : "cond_testc",
|
|
}
|
|
|
|
func (self _Op) String() string {
|
|
if ret := _OpNames[self]; ret != "" {
|
|
return ret
|
|
} else {
|
|
return "<invalid>"
|
|
}
|
|
}
|
|
|
|
func _OP_int() _Op {
|
|
switch _INT_SIZE {
|
|
case 32: return _OP_i32
|
|
case 64: return _OP_i64
|
|
default: panic("unsupported int size")
|
|
}
|
|
}
|
|
|
|
func _OP_uint() _Op {
|
|
switch _INT_SIZE {
|
|
case 32: return _OP_u32
|
|
case 64: return _OP_u64
|
|
default: panic("unsupported uint size")
|
|
}
|
|
}
|
|
|
|
func _OP_uintptr() _Op {
|
|
switch _PTR_SIZE {
|
|
case 32: return _OP_u32
|
|
case 64: return _OP_u64
|
|
default: panic("unsupported pointer size")
|
|
}
|
|
}
|
|
|
|
func _OP_is_zero_ints() _Op {
|
|
switch _INT_SIZE {
|
|
case 32: return _OP_is_zero_4
|
|
case 64: return _OP_is_zero_8
|
|
default: panic("unsupported integer size")
|
|
}
|
|
}
|
|
|
|
type _Instr struct {
|
|
u uint64 // union {op: 8, _: 8, vi: 48}, vi maybe int or len(str)
|
|
p unsafe.Pointer // maybe GoString.Ptr, or *GoType
|
|
}
|
|
|
|
func packOp(op _Op) uint64 {
|
|
return uint64(op) << 56
|
|
}
|
|
|
|
func newInsOp(op _Op) _Instr {
|
|
return _Instr{u: packOp(op)}
|
|
}
|
|
|
|
func newInsVi(op _Op, vi int) _Instr {
|
|
return _Instr{u: packOp(op) | rt.PackInt(vi)}
|
|
}
|
|
|
|
func newInsVs(op _Op, vs string) _Instr {
|
|
return _Instr {
|
|
u: packOp(op) | rt.PackInt(len(vs)),
|
|
p: (*rt.GoString)(unsafe.Pointer(&vs)).Ptr,
|
|
}
|
|
}
|
|
|
|
func newInsVt(op _Op, vt reflect.Type) _Instr {
|
|
return _Instr {
|
|
u: packOp(op),
|
|
p: unsafe.Pointer(rt.UnpackType(vt)),
|
|
}
|
|
}
|
|
|
|
func newInsVp(op _Op, vt reflect.Type, pv bool) _Instr {
|
|
i := 0
|
|
if pv {
|
|
i = 1
|
|
}
|
|
return _Instr {
|
|
u: packOp(op) | rt.PackInt(i),
|
|
p: unsafe.Pointer(rt.UnpackType(vt)),
|
|
}
|
|
}
|
|
|
|
func (self _Instr) op() _Op {
|
|
return _Op(self.u >> 56)
|
|
}
|
|
|
|
func (self _Instr) vi() int {
|
|
return rt.UnpackInt(self.u)
|
|
}
|
|
|
|
func (self _Instr) vf() uint8 {
|
|
return (*rt.GoType)(self.p).KindFlags
|
|
}
|
|
|
|
func (self _Instr) vs() (v string) {
|
|
(*rt.GoString)(unsafe.Pointer(&v)).Ptr = self.p
|
|
(*rt.GoString)(unsafe.Pointer(&v)).Len = self.vi()
|
|
return
|
|
}
|
|
|
|
func (self _Instr) vk() reflect.Kind {
|
|
return (*rt.GoType)(self.p).Kind()
|
|
}
|
|
|
|
func (self _Instr) vt() reflect.Type {
|
|
return (*rt.GoType)(self.p).Pack()
|
|
}
|
|
|
|
func (self _Instr) vp() (vt reflect.Type, pv bool) {
|
|
return (*rt.GoType)(self.p).Pack(), rt.UnpackInt(self.u) == 1
|
|
}
|
|
|
|
func (self _Instr) i64() int64 {
|
|
return int64(self.vi())
|
|
}
|
|
|
|
func (self _Instr) vlen() int {
|
|
return int((*rt.GoType)(self.p).Size)
|
|
}
|
|
|
|
func (self _Instr) isBranch() bool {
|
|
switch self.op() {
|
|
case _OP_goto : fallthrough
|
|
case _OP_is_nil : fallthrough
|
|
case _OP_is_nil_p1 : fallthrough
|
|
case _OP_is_zero_1 : fallthrough
|
|
case _OP_is_zero_2 : fallthrough
|
|
case _OP_is_zero_4 : fallthrough
|
|
case _OP_is_zero_8 : fallthrough
|
|
case _OP_map_check_key : fallthrough
|
|
case _OP_map_write_key : fallthrough
|
|
case _OP_slice_next : fallthrough
|
|
case _OP_cond_testc : return true
|
|
default : return false
|
|
}
|
|
}
|
|
|
|
func (self _Instr) disassemble() string {
|
|
switch self.op() {
|
|
case _OP_byte : return fmt.Sprintf("%-18s%s", self.op().String(), strconv.QuoteRune(rune(self.vi())))
|
|
case _OP_text : return fmt.Sprintf("%-18s%s", self.op().String(), strconv.Quote(self.vs()))
|
|
case _OP_index : return fmt.Sprintf("%-18s%d", self.op().String(), self.vi())
|
|
case _OP_recurse : fallthrough
|
|
case _OP_map_iter : fallthrough
|
|
case _OP_marshal : fallthrough
|
|
case _OP_marshal_p : fallthrough
|
|
case _OP_marshal_text : fallthrough
|
|
case _OP_marshal_text_p : return fmt.Sprintf("%-18s%s", self.op().String(), self.vt())
|
|
case _OP_goto : fallthrough
|
|
case _OP_is_nil : fallthrough
|
|
case _OP_is_nil_p1 : fallthrough
|
|
case _OP_is_zero_1 : fallthrough
|
|
case _OP_is_zero_2 : fallthrough
|
|
case _OP_is_zero_4 : fallthrough
|
|
case _OP_is_zero_8 : fallthrough
|
|
case _OP_is_zero_map : fallthrough
|
|
case _OP_cond_testc : fallthrough
|
|
case _OP_map_check_key : fallthrough
|
|
case _OP_map_write_key : return fmt.Sprintf("%-18sL_%d", self.op().String(), self.vi())
|
|
case _OP_slice_next : return fmt.Sprintf("%-18sL_%d, %s", self.op().String(), self.vi(), self.vt())
|
|
default : return self.op().String()
|
|
}
|
|
}
|
|
|
|
type (
|
|
_Program []_Instr
|
|
)
|
|
|
|
func (self _Program) pc() int {
|
|
return len(self)
|
|
}
|
|
|
|
func (self _Program) tag(n int) {
|
|
if n >= _MaxStack {
|
|
panic("type nesting too deep")
|
|
}
|
|
}
|
|
|
|
func (self _Program) pin(i int) {
|
|
v := &self[i]
|
|
v.u &= 0xffff000000000000
|
|
v.u |= rt.PackInt(self.pc())
|
|
}
|
|
|
|
func (self _Program) rel(v []int) {
|
|
for _, i := range v {
|
|
self.pin(i)
|
|
}
|
|
}
|
|
|
|
func (self *_Program) add(op _Op) {
|
|
*self = append(*self, newInsOp(op))
|
|
}
|
|
|
|
func (self *_Program) key(op _Op) {
|
|
*self = append(*self,
|
|
newInsVi(_OP_byte, '"'),
|
|
newInsOp(op),
|
|
newInsVi(_OP_byte, '"'),
|
|
)
|
|
}
|
|
|
|
func (self *_Program) int(op _Op, vi int) {
|
|
*self = append(*self, newInsVi(op, vi))
|
|
}
|
|
|
|
func (self *_Program) str(op _Op, vs string) {
|
|
*self = append(*self, newInsVs(op, vs))
|
|
}
|
|
|
|
func (self *_Program) rtt(op _Op, vt reflect.Type) {
|
|
*self = append(*self, newInsVt(op, vt))
|
|
}
|
|
|
|
func (self *_Program) vp(op _Op, vt reflect.Type, pv bool) {
|
|
*self = append(*self, newInsVp(op, vt, pv))
|
|
}
|
|
|
|
func (self _Program) disassemble() string {
|
|
nb := len(self)
|
|
tab := make([]bool, nb + 1)
|
|
ret := make([]string, 0, nb + 1)
|
|
|
|
/* prescan to get all the labels */
|
|
for _, ins := range self {
|
|
if ins.isBranch() {
|
|
tab[ins.vi()] = true
|
|
}
|
|
}
|
|
|
|
/* disassemble each instruction */
|
|
for i, ins := range self {
|
|
if !tab[i] {
|
|
ret = append(ret, "\t" + ins.disassemble())
|
|
} else {
|
|
ret = append(ret, fmt.Sprintf("L_%d:\n\t%s", i, ins.disassemble()))
|
|
}
|
|
}
|
|
|
|
/* add the last label, if needed */
|
|
if tab[nb] {
|
|
ret = append(ret, fmt.Sprintf("L_%d:", nb))
|
|
}
|
|
|
|
/* add an "end" indicator, and join all the strings */
|
|
return strings.Join(append(ret, "\tend"), "\n")
|
|
}
|
|
|
|
type _Compiler struct {
|
|
opts option.CompileOptions
|
|
pv bool
|
|
tab map[reflect.Type]bool
|
|
rec map[reflect.Type]uint8
|
|
}
|
|
|
|
func newCompiler() *_Compiler {
|
|
return &_Compiler {
|
|
opts: option.DefaultCompileOptions(),
|
|
tab: map[reflect.Type]bool{},
|
|
rec: map[reflect.Type]uint8{},
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) apply(opts option.CompileOptions) *_Compiler {
|
|
self.opts = opts
|
|
if self.opts.RecursiveDepth > 0 {
|
|
self.rec = map[reflect.Type]uint8{}
|
|
}
|
|
return self
|
|
}
|
|
|
|
func (self *_Compiler) rescue(ep *error) {
|
|
if val := recover(); val != nil {
|
|
if err, ok := val.(error); ok {
|
|
*ep = err
|
|
} else {
|
|
panic(val)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compile(vt reflect.Type, pv bool) (ret _Program, err error) {
|
|
defer self.rescue(&err)
|
|
self.compileOne(&ret, 0, vt, pv)
|
|
return
|
|
}
|
|
|
|
func (self *_Compiler) compileOne(p *_Program, sp int, vt reflect.Type, pv bool) {
|
|
if self.tab[vt] {
|
|
p.vp(_OP_recurse, vt, pv)
|
|
} else {
|
|
self.compileRec(p, sp, vt, pv)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileRec(p *_Program, sp int, vt reflect.Type, pv bool) {
|
|
pr := self.pv
|
|
pt := reflect.PtrTo(vt)
|
|
|
|
/* check for addressable `json.Marshaler` with pointer receiver */
|
|
if pv && pt.Implements(jsonMarshalerType) {
|
|
p.rtt(_OP_marshal_p, pt)
|
|
return
|
|
}
|
|
|
|
/* check for `json.Marshaler` */
|
|
if vt.Implements(jsonMarshalerType) {
|
|
self.compileMarshaler(p, _OP_marshal, vt, jsonMarshalerType)
|
|
return
|
|
}
|
|
|
|
/* check for addressable `encoding.TextMarshaler` with pointer receiver */
|
|
if pv && pt.Implements(encodingTextMarshalerType) {
|
|
p.rtt(_OP_marshal_text_p, pt)
|
|
return
|
|
}
|
|
|
|
/* check for `encoding.TextMarshaler` */
|
|
if vt.Implements(encodingTextMarshalerType) {
|
|
self.compileMarshaler(p, _OP_marshal_text, vt, encodingTextMarshalerType)
|
|
return
|
|
}
|
|
|
|
/* enter the recursion, and compile the type */
|
|
self.pv = pv
|
|
self.tab[vt] = true
|
|
self.compileOps(p, sp, vt)
|
|
|
|
/* exit the recursion */
|
|
self.pv = pr
|
|
delete(self.tab, vt)
|
|
}
|
|
|
|
func (self *_Compiler) compileOps(p *_Program, sp int, vt reflect.Type) {
|
|
switch vt.Kind() {
|
|
case reflect.Bool : p.add(_OP_bool)
|
|
case reflect.Int : p.add(_OP_int())
|
|
case reflect.Int8 : p.add(_OP_i8)
|
|
case reflect.Int16 : p.add(_OP_i16)
|
|
case reflect.Int32 : p.add(_OP_i32)
|
|
case reflect.Int64 : p.add(_OP_i64)
|
|
case reflect.Uint : p.add(_OP_uint())
|
|
case reflect.Uint8 : p.add(_OP_u8)
|
|
case reflect.Uint16 : p.add(_OP_u16)
|
|
case reflect.Uint32 : p.add(_OP_u32)
|
|
case reflect.Uint64 : p.add(_OP_u64)
|
|
case reflect.Uintptr : p.add(_OP_uintptr())
|
|
case reflect.Float32 : p.add(_OP_f32)
|
|
case reflect.Float64 : p.add(_OP_f64)
|
|
case reflect.String : self.compileString (p, vt)
|
|
case reflect.Array : self.compileArray (p, sp, vt.Elem(), vt.Len())
|
|
case reflect.Interface : self.compileInterface (p, vt)
|
|
case reflect.Map : self.compileMap (p, sp, vt)
|
|
case reflect.Ptr : self.compilePtr (p, sp, vt.Elem())
|
|
case reflect.Slice : self.compileSlice (p, sp, vt.Elem())
|
|
case reflect.Struct : self.compileStruct (p, sp, vt)
|
|
default : panic (error_type(vt))
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileNil(p *_Program, sp int, vt reflect.Type, nil_op _Op, fn func(*_Program, int, reflect.Type)) {
|
|
x := p.pc()
|
|
p.add(_OP_is_nil)
|
|
fn(p, sp, vt)
|
|
e := p.pc()
|
|
p.add(_OP_goto)
|
|
p.pin(x)
|
|
p.add(nil_op)
|
|
p.pin(e)
|
|
}
|
|
|
|
func (self *_Compiler) compilePtr(p *_Program, sp int, vt reflect.Type) {
|
|
self.compileNil(p, sp, vt, _OP_null, self.compilePtrBody)
|
|
}
|
|
|
|
func (self *_Compiler) compilePtrBody(p *_Program, sp int, vt reflect.Type) {
|
|
p.tag(sp)
|
|
p.add(_OP_save)
|
|
p.add(_OP_deref)
|
|
self.compileOne(p, sp + 1, vt, true)
|
|
p.add(_OP_drop)
|
|
}
|
|
|
|
func (self *_Compiler) compileMap(p *_Program, sp int, vt reflect.Type) {
|
|
self.compileNil(p, sp, vt, _OP_empty_obj, self.compileMapBody)
|
|
}
|
|
|
|
func (self *_Compiler) compileMapBody(p *_Program, sp int, vt reflect.Type) {
|
|
p.tag(sp + 1)
|
|
p.int(_OP_byte, '{')
|
|
p.add(_OP_save)
|
|
p.rtt(_OP_map_iter, vt)
|
|
p.add(_OP_save)
|
|
i := p.pc()
|
|
p.add(_OP_map_check_key)
|
|
u := p.pc()
|
|
p.add(_OP_map_write_key)
|
|
self.compileMapBodyKey(p, vt.Key())
|
|
p.pin(u)
|
|
p.int(_OP_byte, ':')
|
|
p.add(_OP_map_value_next)
|
|
self.compileOne(p, sp + 2, vt.Elem(), false)
|
|
j := p.pc()
|
|
p.add(_OP_map_check_key)
|
|
p.int(_OP_byte, ',')
|
|
v := p.pc()
|
|
p.add(_OP_map_write_key)
|
|
self.compileMapBodyKey(p, vt.Key())
|
|
p.pin(v)
|
|
p.int(_OP_byte, ':')
|
|
p.add(_OP_map_value_next)
|
|
self.compileOne(p, sp + 2, vt.Elem(), false)
|
|
p.int(_OP_goto, j)
|
|
p.pin(i)
|
|
p.pin(j)
|
|
p.add(_OP_map_stop)
|
|
p.add(_OP_drop_2)
|
|
p.int(_OP_byte, '}')
|
|
}
|
|
|
|
func (self *_Compiler) compileMapBodyKey(p *_Program, vk reflect.Type) {
|
|
if !vk.Implements(encodingTextMarshalerType) {
|
|
self.compileMapBodyTextKey(p, vk)
|
|
} else {
|
|
self.compileMapBodyUtextKey(p, vk)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileMapBodyTextKey(p *_Program, vk reflect.Type) {
|
|
switch vk.Kind() {
|
|
case reflect.Invalid : panic("map key is nil")
|
|
case reflect.Bool : p.key(_OP_bool)
|
|
case reflect.Int : p.key(_OP_int())
|
|
case reflect.Int8 : p.key(_OP_i8)
|
|
case reflect.Int16 : p.key(_OP_i16)
|
|
case reflect.Int32 : p.key(_OP_i32)
|
|
case reflect.Int64 : p.key(_OP_i64)
|
|
case reflect.Uint : p.key(_OP_uint())
|
|
case reflect.Uint8 : p.key(_OP_u8)
|
|
case reflect.Uint16 : p.key(_OP_u16)
|
|
case reflect.Uint32 : p.key(_OP_u32)
|
|
case reflect.Uint64 : p.key(_OP_u64)
|
|
case reflect.Uintptr : p.key(_OP_uintptr())
|
|
case reflect.Float32 : p.key(_OP_f32)
|
|
case reflect.Float64 : p.key(_OP_f64)
|
|
case reflect.String : self.compileString(p, vk)
|
|
default : panic(error_type(vk))
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileMapBodyUtextKey(p *_Program, vk reflect.Type) {
|
|
if vk.Kind() != reflect.Ptr {
|
|
p.rtt(_OP_marshal_text, vk)
|
|
} else {
|
|
self.compileMapBodyUtextPtr(p, vk)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileMapBodyUtextPtr(p *_Program, vk reflect.Type) {
|
|
i := p.pc()
|
|
p.add(_OP_is_nil)
|
|
p.rtt(_OP_marshal_text, vk)
|
|
j := p.pc()
|
|
p.add(_OP_goto)
|
|
p.pin(i)
|
|
p.str(_OP_text, "\"\"")
|
|
p.pin(j)
|
|
}
|
|
|
|
func (self *_Compiler) compileSlice(p *_Program, sp int, vt reflect.Type) {
|
|
self.compileNil(p, sp, vt, _OP_empty_arr, self.compileSliceBody)
|
|
}
|
|
|
|
func (self *_Compiler) compileSliceBody(p *_Program, sp int, vt reflect.Type) {
|
|
if isSimpleByte(vt) {
|
|
p.add(_OP_bin)
|
|
} else {
|
|
self.compileSliceArray(p, sp, vt)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileSliceArray(p *_Program, sp int, vt reflect.Type) {
|
|
p.tag(sp)
|
|
p.int(_OP_byte, '[')
|
|
p.add(_OP_save)
|
|
p.add(_OP_slice_len)
|
|
i := p.pc()
|
|
p.rtt(_OP_slice_next, vt)
|
|
self.compileOne(p, sp + 1, vt, true)
|
|
j := p.pc()
|
|
p.rtt(_OP_slice_next, vt)
|
|
p.int(_OP_byte, ',')
|
|
self.compileOne(p, sp + 1, vt, true)
|
|
p.int(_OP_goto, j)
|
|
p.pin(i)
|
|
p.pin(j)
|
|
p.add(_OP_drop)
|
|
p.int(_OP_byte, ']')
|
|
}
|
|
|
|
func (self *_Compiler) compileArray(p *_Program, sp int, vt reflect.Type, nb int) {
|
|
p.tag(sp)
|
|
p.int(_OP_byte, '[')
|
|
p.add(_OP_save)
|
|
|
|
/* first item */
|
|
if nb != 0 {
|
|
self.compileOne(p, sp + 1, vt, self.pv)
|
|
p.add(_OP_load)
|
|
}
|
|
|
|
/* remaining items */
|
|
for i := 1; i < nb; i++ {
|
|
p.int(_OP_byte, ',')
|
|
p.int(_OP_index, i * int(vt.Size()))
|
|
self.compileOne(p, sp + 1, vt, self.pv)
|
|
p.add(_OP_load)
|
|
}
|
|
|
|
/* end of array */
|
|
p.add(_OP_drop)
|
|
p.int(_OP_byte, ']')
|
|
}
|
|
|
|
func (self *_Compiler) compileString(p *_Program, vt reflect.Type) {
|
|
if vt != jsonNumberType {
|
|
p.add(_OP_str)
|
|
} else {
|
|
p.add(_OP_number)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileStruct(p *_Program, sp int, vt reflect.Type) {
|
|
if sp >= self.opts.MaxInlineDepth || p.pc() >= _MAX_ILBUF || (sp > 0 && vt.NumField() >= _MAX_FIELDS) {
|
|
p.vp(_OP_recurse, vt, self.pv)
|
|
if self.opts.RecursiveDepth > 0 {
|
|
if self.pv {
|
|
self.rec[vt] = 1
|
|
} else {
|
|
self.rec[vt] = 0
|
|
}
|
|
}
|
|
} else {
|
|
self.compileStructBody(p, sp, vt)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileStructBody(p *_Program, sp int, vt reflect.Type) {
|
|
p.tag(sp)
|
|
p.int(_OP_byte, '{')
|
|
p.add(_OP_save)
|
|
p.add(_OP_cond_set)
|
|
|
|
/* compile each field */
|
|
for _, fv := range resolver.ResolveStruct(vt) {
|
|
var s []int
|
|
var o resolver.Offset
|
|
|
|
/* "omitempty" for arrays */
|
|
if fv.Type.Kind() == reflect.Array {
|
|
if fv.Type.Len() == 0 && (fv.Opts & resolver.F_omitempty) != 0 {
|
|
continue
|
|
}
|
|
}
|
|
|
|
/* index to the field */
|
|
for _, o = range fv.Path {
|
|
if p.int(_OP_index, int(o.Size)); o.Kind == resolver.F_deref {
|
|
s = append(s, p.pc())
|
|
p.add(_OP_is_nil)
|
|
p.add(_OP_deref)
|
|
}
|
|
}
|
|
|
|
/* check for "omitempty" option */
|
|
if fv.Type.Kind() != reflect.Struct && fv.Type.Kind() != reflect.Array && (fv.Opts & resolver.F_omitempty) != 0 {
|
|
s = append(s, p.pc())
|
|
self.compileStructFieldZero(p, fv.Type)
|
|
}
|
|
|
|
/* add the comma if not the first element */
|
|
i := p.pc()
|
|
p.add(_OP_cond_testc)
|
|
p.int(_OP_byte, ',')
|
|
p.pin(i)
|
|
|
|
/* compile the key and value */
|
|
ft := fv.Type
|
|
p.str(_OP_text, Quote(fv.Name) + ":")
|
|
|
|
/* check for "stringnize" option */
|
|
if (fv.Opts & resolver.F_stringize) == 0 {
|
|
self.compileOne(p, sp + 1, ft, self.pv)
|
|
} else {
|
|
self.compileStructFieldStr(p, sp + 1, ft)
|
|
}
|
|
|
|
/* patch the skipping jumps and reload the struct pointer */
|
|
p.rel(s)
|
|
p.add(_OP_load)
|
|
}
|
|
|
|
/* end of object */
|
|
p.add(_OP_drop)
|
|
p.int(_OP_byte, '}')
|
|
}
|
|
|
|
func (self *_Compiler) compileStructFieldStr(p *_Program, sp int, vt reflect.Type) {
|
|
pc := -1
|
|
ft := vt
|
|
sv := false
|
|
|
|
/* dereference the pointer if needed */
|
|
if ft.Kind() == reflect.Ptr {
|
|
ft = ft.Elem()
|
|
}
|
|
|
|
/* check if it can be stringized */
|
|
switch ft.Kind() {
|
|
case reflect.Bool : sv = true
|
|
case reflect.Int : sv = true
|
|
case reflect.Int8 : sv = true
|
|
case reflect.Int16 : sv = true
|
|
case reflect.Int32 : sv = true
|
|
case reflect.Int64 : sv = true
|
|
case reflect.Uint : sv = true
|
|
case reflect.Uint8 : sv = true
|
|
case reflect.Uint16 : sv = true
|
|
case reflect.Uint32 : sv = true
|
|
case reflect.Uint64 : sv = true
|
|
case reflect.Uintptr : sv = true
|
|
case reflect.Float32 : sv = true
|
|
case reflect.Float64 : sv = true
|
|
case reflect.String : sv = true
|
|
}
|
|
|
|
/* if it's not, ignore the "string" and follow the regular path */
|
|
if !sv {
|
|
self.compileOne(p, sp, vt, self.pv)
|
|
return
|
|
}
|
|
|
|
/* dereference the pointer */
|
|
if vt.Kind() == reflect.Ptr {
|
|
pc = p.pc()
|
|
vt = vt.Elem()
|
|
p.add(_OP_is_nil)
|
|
p.add(_OP_deref)
|
|
}
|
|
|
|
/* special case of a double-quoted string */
|
|
if ft != jsonNumberType && ft.Kind() == reflect.String {
|
|
p.add(_OP_quote)
|
|
} else {
|
|
self.compileStructFieldQuoted(p, sp, vt)
|
|
}
|
|
|
|
/* the "null" case of the pointer */
|
|
if pc != -1 {
|
|
e := p.pc()
|
|
p.add(_OP_goto)
|
|
p.pin(pc)
|
|
p.add(_OP_null)
|
|
p.pin(e)
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileStructFieldZero(p *_Program, vt reflect.Type) {
|
|
switch vt.Kind() {
|
|
case reflect.Bool : p.add(_OP_is_zero_1)
|
|
case reflect.Int : p.add(_OP_is_zero_ints())
|
|
case reflect.Int8 : p.add(_OP_is_zero_1)
|
|
case reflect.Int16 : p.add(_OP_is_zero_2)
|
|
case reflect.Int32 : p.add(_OP_is_zero_4)
|
|
case reflect.Int64 : p.add(_OP_is_zero_8)
|
|
case reflect.Uint : p.add(_OP_is_zero_ints())
|
|
case reflect.Uint8 : p.add(_OP_is_zero_1)
|
|
case reflect.Uint16 : p.add(_OP_is_zero_2)
|
|
case reflect.Uint32 : p.add(_OP_is_zero_4)
|
|
case reflect.Uint64 : p.add(_OP_is_zero_8)
|
|
case reflect.Uintptr : p.add(_OP_is_nil)
|
|
case reflect.Float32 : p.add(_OP_is_zero_4)
|
|
case reflect.Float64 : p.add(_OP_is_zero_8)
|
|
case reflect.String : p.add(_OP_is_nil_p1)
|
|
case reflect.Interface : p.add(_OP_is_nil)
|
|
case reflect.Map : p.add(_OP_is_zero_map)
|
|
case reflect.Ptr : p.add(_OP_is_nil)
|
|
case reflect.Slice : p.add(_OP_is_nil_p1)
|
|
default : panic(error_type(vt))
|
|
}
|
|
}
|
|
|
|
func (self *_Compiler) compileStructFieldQuoted(p *_Program, sp int, vt reflect.Type) {
|
|
p.int(_OP_byte, '"')
|
|
self.compileOne(p, sp, vt, self.pv)
|
|
p.int(_OP_byte, '"')
|
|
}
|
|
|
|
func (self *_Compiler) compileInterface(p *_Program, vt reflect.Type) {
|
|
x := p.pc()
|
|
p.add(_OP_is_nil_p1)
|
|
|
|
/* iface and efaces are different */
|
|
if vt.NumMethod() == 0 {
|
|
p.add(_OP_eface)
|
|
} else {
|
|
p.add(_OP_iface)
|
|
}
|
|
|
|
/* the "null" value */
|
|
e := p.pc()
|
|
p.add(_OP_goto)
|
|
p.pin(x)
|
|
p.add(_OP_null)
|
|
p.pin(e)
|
|
}
|
|
|
|
func (self *_Compiler) compileMarshaler(p *_Program, op _Op, vt reflect.Type, mt reflect.Type) {
|
|
pc := p.pc()
|
|
vk := vt.Kind()
|
|
|
|
/* direct receiver */
|
|
if vk != reflect.Ptr {
|
|
p.rtt(op, vt)
|
|
return
|
|
}
|
|
|
|
/* value receiver with a pointer type, check for nil before calling the marshaler */
|
|
p.add(_OP_is_nil)
|
|
p.rtt(op, vt)
|
|
i := p.pc()
|
|
p.add(_OP_goto)
|
|
p.pin(pc)
|
|
p.add(_OP_null)
|
|
p.pin(i)
|
|
}
|