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Commit Description:
fix wrong merge
Commit Description:
fix wrong merge
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node_modules/restructure/src/Struct.coffee
| 79 lines
| 1.7 KiB
| text/coffeescript
| CoffeeScriptLexer
|
| r789 | utils = require './utils' | |||
| class Struct | ||||
| constructor: (@fields = {}) -> | ||||
| decode: (stream, parent, length = 0) -> | ||||
| res = @_setup stream, parent, length | ||||
| @_parseFields stream, res, @fields | ||||
| @process?.call(res, stream) | ||||
| return res | ||||
| _setup: (stream, parent, length) -> | ||||
| res = {} | ||||
| # define hidden properties | ||||
| Object.defineProperties res, | ||||
| parent: { value: parent } | ||||
| _startOffset: { value: stream.pos } | ||||
| _currentOffset: { value: 0, writable: true } | ||||
| _length: { value: length } | ||||
| return res | ||||
| _parseFields: (stream, res, fields) -> | ||||
| for key, type of fields | ||||
| if typeof type is 'function' | ||||
| val = type.call(res, res) | ||||
| else | ||||
| val = type.decode(stream, res) | ||||
| unless val is undefined | ||||
| if val instanceof utils.PropertyDescriptor | ||||
| Object.defineProperty res, key, val | ||||
| else | ||||
| res[key] = val | ||||
| res._currentOffset = stream.pos - res._startOffset | ||||
| return | ||||
| size: (val = {}, parent, includePointers = true) -> | ||||
| ctx = | ||||
| parent: parent | ||||
| val: val | ||||
| pointerSize: 0 | ||||
| size = 0 | ||||
| for key, type of @fields when type.size? | ||||
| size += type.size(val[key], ctx) | ||||
| if includePointers | ||||
| size += ctx.pointerSize | ||||
| return size | ||||
| encode: (stream, val, parent) -> | ||||
| @preEncode?.call(val, stream) | ||||
| ctx = | ||||
| pointers: [] | ||||
| startOffset: stream.pos | ||||
| parent: parent | ||||
| val: val | ||||
| pointerSize: 0 | ||||
| ctx.pointerOffset = stream.pos + @size(val, ctx, false) | ||||
| for key, type of @fields when type.encode? | ||||
| type.encode(stream, val[key], ctx) | ||||
| i = 0 | ||||
| while i < ctx.pointers.length | ||||
| ptr = ctx.pointers[i++] | ||||
| ptr.type.encode(stream, ptr.val, ptr.parent) | ||||
| return | ||||
| module.exports = Struct | ||||