github.com/cloudwego/frugal@v0.1.15/internal/binary/encoder/state.go (about) 1 /* 2 * Copyright 2022 ByteDance Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package encoder 18 19 import ( 20 `math` 21 `unsafe` 22 23 `github.com/cloudwego/frugal/internal/binary/defs` 24 `github.com/cloudwego/frugal/internal/rt` 25 ) 26 27 const ( 28 LnOffset = int64(unsafe.Offsetof(StateItem{}.Ln)) 29 MiOffset = int64(unsafe.Offsetof(StateItem{}.Mi)) 30 WpOffset = int64(unsafe.Offsetof(StateItem{}.Wp)) 31 BmOffset = int64(unsafe.Offsetof(RuntimeState{}.Bm)) 32 ) 33 34 const ( 35 MiKeyOffset = int64(unsafe.Offsetof(rt.GoMapIterator{}.K)) 36 MiValueOffset = int64(unsafe.Offsetof(rt.GoMapIterator{}.V)) 37 ) 38 39 const ( 40 StateMax = (defs.StackSize - 1) * StateSize 41 StateSize = int64(unsafe.Sizeof(StateItem{})) 42 ) 43 44 const ( 45 RangeUint8 = math.MaxUint8 + 1 46 RangeUint16 = math.MaxUint16 + 1 47 ) 48 49 type StateItem struct { 50 Ln uintptr 51 Wp unsafe.Pointer 52 Mi rt.GoMapIterator 53 } 54 55 type RuntimeState struct { 56 St [defs.StackSize]StateItem // Must be the first field. 57 Bm [1024]uint64 // Bitmap, used for uniqueness check of set<i8> and set<i16>. 58 Val unsafe.Pointer // Pointer to the object to be encoded 59 }