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1 | import { IActivationContext, ILifetime, ILifetimeManager } from "./interfaces"; | |
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1 | import { IActivationContext, ILifetime, ILifetimeContext, ILifetimeManager, ILifetimeSlot } from "./interfaces"; | |
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2 | 2 | import { ActivationContext } from "./ActivationContext"; |
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3 | 3 | import { argumentNotNull, isDestroyable } from "./traits"; |
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4 | 4 | |
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5 | 5 | const safeCall = (item: () => void) => { |
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6 | 6 | try { |
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7 | 7 | item(); |
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8 | 8 | } catch { |
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9 | 9 | // silence! |
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10 | 10 | } |
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11 | 11 | }; |
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12 | 12 | |
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13 |
const _empty |
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14 |
has |
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15 | return false; | |
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16 | }, | |
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13 | const _emptySlot = Object.freeze({ | |
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14 | has: () => false, | |
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17 | 15 | |
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18 |
initialize |
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19 | }, | |
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16 | initialize: () => void (0), | |
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20 | 17 | |
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21 | get() { | |
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18 | get: () => { | |
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22 | 19 | throw new Error("The specified item isn't registered with this lifetime manager"); |
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23 | 20 | }, |
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24 | 21 | |
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25 |
store |
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26 | // does nothing | |
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27 | }, | |
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28 | ||
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29 | toString() { | |
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30 | return `[object EmptyLifetime]`; | |
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31 | } | |
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32 | ||
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22 | store: () => void (0) | |
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33 | 23 | }); |
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34 | 24 | |
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35 |
const _unkno |
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36 |
has |
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37 | return false; | |
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38 | }, | |
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39 | initialize() { | |
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25 | const _unknonwSlot = Object.freeze({ | |
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26 | has: () => false, | |
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27 | ||
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28 | initialize: () => { | |
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40 | 29 | throw new Error("Can't call initialize on the unknown lifetime object"); |
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41 | 30 | }, |
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42 | get() { | |
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31 | get: () => { | |
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43 | 32 | throw new Error("The lifetime object isn't initialized"); |
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44 | 33 | }, |
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45 | store() { | |
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34 | store: () => { | |
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46 | 35 | throw new Error("Can't store a value in the unknown lifetime object"); |
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47 | }, | |
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48 | ||
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49 | toString() { | |
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50 | return `[object UnknownLifetime]`; | |
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51 | 36 | } |
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52 | 37 | }); |
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53 | 38 | |
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54 | 39 | let nextId = 0; |
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55 | 40 | |
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56 | 41 | const singletons: { [K: string]: unknown } = {}; |
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57 | 42 | |
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58 | export class LifetimeManager implements ILifetimeManager { | |
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59 | private _cleanup: (() => void)[] = []; | |
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60 | private readonly _cache: { [K: string]: unknown } = {}; | |
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61 | private _destroyed = false; | |
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62 | 43 | |
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63 | private readonly _pending: { [K: string]: unknown } = {}; | |
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64 | ||
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65 | create<T>(): ILifetime<T> & { remove(): void; } { | |
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66 | const id = ++nextId; | |
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67 | return { | |
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68 | has: () => id in this._cache, | |
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44 | const pendingSlot = <T>(store: (item: T) => void) => ({ | |
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45 | has: () => false, | |
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69 | 46 | |
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70 | 47 |
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71 | const t = this._cache[id] as T; | |
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72 | if (t === undefined || t === null) | |
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73 | throw new Error(`The item with with the key ${id} isn't found`); | |
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74 | return t; | |
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48 | throw new Error("The value in this slot doesn't exist"); | |
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75 | 49 |
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76 | 50 | |
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77 | 51 |
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78 | if (this._pending[id]) | |
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79 | throw Error(`Cyclic reference detected: the item with the key ${id} is already activating.`); | |
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80 | this._pending[id] = true; | |
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52 | throw new Error("Cyclic reference detected"); | |
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53 | }, | |
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54 | ||
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55 | store | |
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56 | }); | |
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57 | ||
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58 | const noop = () => void(0); | |
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59 | ||
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60 | const valueSlot = <T>(value: T, cleanup: (item: T) => void) => ({ | |
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61 | has: () => true, | |
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62 | ||
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63 | get: () => value, | |
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64 | ||
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65 | initialize: () => { | |
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66 | throw new Error("The slot already has a value"); | |
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81 | 67 |
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82 | 68 | |
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83 | store: (item: NonNullable<T>, cleanup?: (item: NonNullable<T>) => void) => { | |
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84 | if (id in this._cache) | |
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85 | throw new Error(`The item with with the key ${id} already registered with this lifetime manager`); | |
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86 | if (this._destroyed) | |
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87 | throw new Error("Lifetime manager is destroyed"); | |
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69 | store: () => { | |
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70 | throw new Error("The slot already has a value"); | |
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71 | } | |
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72 | }); | |
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88 | 73 | |
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89 | delete this._pending[id]; | |
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74 | export class LifetimeManager implements ILifetimeManager { | |
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75 | private _destroyed = false; | |
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90 | 76 | |
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91 | this._cache[id] = item; | |
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77 | private readonly _slots: Record<string, ILifetimeSlot<unknown>> = {}; | |
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78 | ||
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79 | slot<T>(cookie: string): ILifetimeSlot<T> { | |
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80 | if (cookie in this._slots) | |
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81 | return this._slots[cookie] as ILifetimeSlot<T>; | |
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92 | 82 | |
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93 | if (cleanup) { | |
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94 | this._cleanup.push(() => cleanup(item)); | |
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95 | } else if (isDestroyable(item)) { | |
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96 | this._cleanup.push(() => item.destroy()); | |
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97 | } | |
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83 | const store = (item: T, cleanup?: (item: T) => void) => { | |
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84 | this._assertNotDestroyed(); | |
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85 | this._slots[cookie] = valueSlot( | |
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86 | item, | |
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87 | cleanup ?? isDestroyable(item) ? () => item.destroy() : noop | |
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88 | ); | |
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89 | }; | |
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90 | ||
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91 | return { | |
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92 | has: () => false, | |
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93 | get: () => { | |
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94 | throw new Error("The value isn't stored in this slot"); | |
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98 | 95 | }, |
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99 | ||
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100 |
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101 |
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102 | throw new Error(`The item '${id}' can't be removed before it has been stored`); | |
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103 | delete this._cache[id]; | |
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96 | store, | |
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97 | initialize: () => { | |
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98 | this._assertNotDestroyed(); | |
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99 | this._slots[cookie] = pendingSlot(store); | |
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104 | 100 | } |
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105 | 101 | }; |
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106 | 102 | } |
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107 | 103 | |
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104 | private _assertNotDestroyed() { | |
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105 | if (this._destroyed) | |
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106 | throw new Error("The lifetime manager is destroyed"); | |
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107 | ||
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108 | } | |
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109 | ||
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108 | 110 | destroy() { |
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109 | 111 | if (!this._destroyed) { |
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110 | 112 | this._destroyed = true; |
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111 | 113 | this._cleanup.forEach(safeCall); |
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112 | 114 | this._cleanup.length = 0; |
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113 | 115 | } |
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114 | 116 | } |
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115 | 117 | |
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116 | 118 | } |
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117 | 119 | |
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118 | 120 | export const emptyLifetime = <T>(): ILifetime<T> => { |
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119 | 121 | return _emptyLifetime; |
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120 | 122 | }; |
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121 | 123 | |
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122 | 124 | export const hierarchyLifetime = <T>(): ILifetime<T> => { |
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123 | 125 | let _lifetime: ILifetime<T> = _unknownLifetime; |
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124 | 126 | return { |
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125 |
initialize(context: I |
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127 | initialize(context: ILifetimeContext) { | |
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126 | 128 | if (_lifetime !== _unknownLifetime) |
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127 | 129 | throw new Error("Cyclic reference activation detected"); |
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128 | 130 | |
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129 | 131 | _lifetime = context.createContainerLifetime<T>(); |
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130 | 132 | }, |
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131 | 133 | get() { |
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132 | 134 | return _lifetime.get(); |
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133 | 135 | }, |
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134 | 136 | has() { |
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135 | 137 | return _lifetime.has(); |
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136 | 138 | }, |
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137 | 139 | store(item: NonNullable<T>, cleanup?: (item: NonNullable<T>) => void) { |
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138 | 140 | return _lifetime.store(item, cleanup); |
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139 | 141 | }, |
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140 | 142 | toString() { |
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141 | 143 | return `[object HierarchyLifetime, has=${String(this.has())}]`; |
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142 | 144 | } |
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143 | 145 | }; |
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144 | 146 | }; |
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145 | 147 | |
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148 | /** | |
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149 | * Creates a lifetime instance bound to the current activation context. This | |
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150 | * lifetime will store the service instance per activation context. Every | |
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151 | * top level service resolution will create a new activation context. This | |
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152 | * context is propagated to subsequent service resolution thus all services | |
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153 | * with context lifetime will be shared among their consumers. | |
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154 | * | |
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155 | * @returns The instance of the lifetime. | |
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156 | */ | |
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146 | 157 | export const contextLifetime = <T>(): ILifetime<T> => { |
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147 | 158 | let _lifetime: ILifetime<T> = _unknownLifetime; |
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148 | 159 | return { |
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149 |
initialize(context: |
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160 | initialize(context: ILifetimeContext) { | |
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150 | 161 | if (_lifetime !== _unknownLifetime) |
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151 | 162 | throw new Error("Cyclic reference detected"); |
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152 | 163 | _lifetime = context.createLifetime(); |
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153 | 164 | }, |
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154 | 165 | get() { |
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155 | 166 | return _lifetime.get(); |
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156 | 167 | }, |
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157 | 168 | has() { |
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158 | 169 | return _lifetime.has(); |
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159 | 170 | }, |
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160 | 171 | store(item: NonNullable<T>) { |
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161 | 172 | _lifetime.store(item); |
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162 | 173 | }, |
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163 | 174 | toString() { |
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164 | 175 | return `[object ContextLifetime, has=${String(this.has())}]`; |
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165 | 176 | } |
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166 | 177 | }; |
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167 | 178 | }; |
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168 | 179 | |
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180 | /** | |
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181 | * Creates the lifetime for the service which will allow existence only one | |
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182 | * instance with the specified {@linkcode typeId}. If there will be created | |
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183 | * several lifetime instances with same `typeId` in the runtime, they will | |
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184 | * share the same service instance. | |
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185 | * | |
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186 | * @param typeId The identified for the global instance, usually this is a | |
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187 | * fully qualified class name | |
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188 | * @returns The lifetime instance | |
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189 | */ | |
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169 | 190 | export const singletonLifetime = <T>(typeId: string): ILifetime<T> => { |
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170 | 191 | argumentNotNull(typeId, "typeId"); |
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171 | 192 | let pending = false; |
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172 | 193 | return { |
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173 | 194 | has() { |
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174 | 195 | return typeId in singletons; |
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175 | 196 | }, |
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176 | 197 | get() { |
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177 | 198 | if (!this.has()) |
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178 | 199 | throw new Error(`The instance ${typeId} doesn't exists`); |
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179 | 200 | return singletons[typeId] as NonNullable<T>; |
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180 | 201 | }, |
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181 | 202 | initialize() { |
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182 | 203 | if (pending) |
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183 | 204 | throw new Error("Cyclic reference detected"); |
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184 | 205 | pending = true; |
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185 | 206 | }, |
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186 | 207 | store(item: NonNullable<T>) { |
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187 | 208 | singletons[typeId] = item; |
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188 | 209 | pending = false; |
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189 | 210 | }, |
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190 | 211 | toString() { |
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191 | 212 | return `[object SingletonLifetime, has=${String(this.has())}, typeId=${typeId}]`; |
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192 | 213 | } |
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193 | 214 | }; |
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194 | 215 | }; |
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195 | 216 | |
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217 | /** Creates a lifetime bound to the specified container. Using this lifetime | |
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218 | * will create a single service instance per the specified container. | |
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219 | * | |
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220 | * @param container The container which will manage the lifetime for the service | |
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221 | */ | |
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196 | 222 | export const containerLifetime = <T>(container: { createLifetime<X>(): ILifetime<X> }) => { |
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197 | 223 | let _lifetime: ILifetime<T> = _unknownLifetime; |
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198 | 224 | return { |
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199 | 225 | initialize() { |
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200 | 226 | if (_lifetime !== _unknownLifetime) |
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201 | 227 | throw new Error("Cyclic reference detected"); |
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202 | 228 | _lifetime = container.createLifetime(); |
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203 | 229 | }, |
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204 | 230 | get() { |
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205 | 231 | return _lifetime.get(); |
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206 | 232 | }, |
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207 | 233 | has() { |
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208 | 234 | return _lifetime.has(); |
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209 | 235 | }, |
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210 | store(item: NonNullable<T>) { | |
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211 | _lifetime.store(item); | |
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236 | store(item: NonNullable<T>, cleanup?: (item: NonNullable<T>) => void) { | |
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237 | _lifetime.store(item, cleanup); | |
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212 | 238 | }, |
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213 | 239 | toString() { |
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214 | 240 | return `[object ContainerLifetime, has=${String(_lifetime.has())}]`; |
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215 | 241 | } |
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216 | 242 | }; |
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217 | 243 | }; |
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1 | 1 | import { key } from "./traits"; |
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2 | 2 | |
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3 | 3 | export interface IDestroyable { |
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4 | 4 | destroy(): void; |
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5 | 5 | } |
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6 | 6 | |
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7 | 7 | /** |
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8 | 8 | * @template S Карта доступных зависимостей |
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9 | 9 | */ |
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10 | 10 | export interface Resolver<S> { |
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11 | 11 | /** |
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12 | 12 | * Функция для разрешения зависимостей, поддерживает создание фабричных методов, |
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13 | 13 | * отложенную активацию и значение по-умолчанию для сервисов |
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14 | 14 | * @template K Ключ сервиса из {@linkcode S} |
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15 | 15 | * @template O Тип параметра {@linkcode opts} используется для выведения типа |
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16 | 16 | * возвращаемого значения. |
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17 | 17 | * @param name Ключ сервиса, который будет разрешен. |
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18 | 18 | * @param {boolean=} opts.lazy Признак того, что требуется отложенная активация, |
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19 | 19 | * будет возвращен фабричный метод для получения зависимости. Если не указан, |
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20 | 20 | * то считается `false`. |
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21 | 21 | * @param {any=} opts.default Значение по умолчанию, если в контейнере указанный |
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22 | 22 | * сервис не зарегистрирован |
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23 | 23 | * @returns Либо фабричный метод для получения зависимости, либо значение зависимости |
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24 | 24 | * @throws Error Если зависимость не найдена и не предоставлено значение по-умолчанию |
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25 | 25 | */ |
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26 | 26 | <K extends keyof S, O extends { lazy: true; }>(name: K, opts?: O): () => NonNullable<S[K]> | InferDefault<O>; |
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27 | 27 | <K extends keyof S, O extends { lazy?: false; }>(name: K, opts?: O): NonNullable<S[K]> | InferDefault<O>; |
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28 | 28 | } |
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29 | 29 | |
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30 | 30 | export type DepsMap<S> = { |
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31 | 31 | [k in key]: Refs<S> | keyof S; |
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32 | 32 | }; |
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33 | 33 | |
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34 | 34 | export type Refs<S> = { |
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35 | 35 | [k in keyof S]: Ref<k, S[k]>; |
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36 | 36 | }[keyof S]; |
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37 | 37 | |
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38 | 38 | export type Ref<K extends key, D> = { |
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39 | 39 | /** The name of the service */ |
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40 | 40 | name: K; |
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41 | 41 | |
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42 | 42 | /** Make a lazy reference, the resolved dependency will be a function */ |
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43 | 43 | lazy?: boolean; |
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44 | 44 | |
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45 | 45 | /** The default value for the case where the service isn't defined. |
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46 | 46 | * When specified the dependency becomes optional, the default value can be |
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47 | 47 | * `null` or `undefined` |
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48 | 48 | */ |
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49 | 49 | default?: D | null |
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50 | 50 | }; |
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51 | 51 | |
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52 | 52 | export type Lazy<T, L extends boolean> = L extends true ? () => T : T; |
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53 | 53 | |
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54 | 54 | /** Возвращает тип свойства `default` в типе {@link T} */ |
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55 | 55 | export type InferDefault<T> = T extends { default: infer D } ? D : never; |
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56 | 56 | |
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57 | 57 | export type InferLazy<R> = R extends { lazy: infer L } ? |
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58 | 58 | L extends true ? true : false : |
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59 | 59 | false; |
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60 | 60 | export type Resolve<S, R> = |
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61 | 61 | R extends keyof S ? NonNullable<S[R]> : |
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62 | 62 | R extends Ref<infer K, unknown> ? |
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63 | 63 | K extends keyof S ? |
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64 | 64 | Lazy<NonNullable<S[K]> | InferDefault<R>, InferLazy<R>> : |
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65 | 65 | never : |
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66 | 66 | never; |
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67 | 67 | |
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68 | 68 | /** |
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69 | 69 | * Интерфейс для конфигурирования сервиса в контейнере. Конфигурирование сервиса |
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70 | 70 | * состоит из настройки различных параметров вызовами методов {@linkcode wants}, |
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71 | 71 | * {@linkcode lifetime}, {@linkcode override}, {@linkcode cleanup}. Завершение настройки |
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72 | 72 | * сервиса осуществляется вызовом одного из методов {@linkcode factory} либо |
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73 | 73 | * {@linkcode value}. |
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74 | 74 | * |
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75 | 75 | * @template S Карта сервисов контейнера, доступных при описании дескриптора |
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76 | 76 | * @template T Тип сервиса |
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77 | 77 | * @template R Карта зависимостей, которая передается параметром фабрике |
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78 | 78 | * @template U Имена пользовательских сервисов, доступных для переопределения |
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79 | 79 | */ |
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80 | 80 | export interface IDescriptorBuilder<S, T, R, U extends keyof S> { |
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81 | 81 | |
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82 | 82 | /** Указывает фабрика для создания экземпляра сервиса, фабрика передается |
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83 | 83 | * в виде параметра. При вызове фабрике будет передан объект с зависимостями, |
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84 | 84 | * которые были предварительно указаны вызовами метода `wants(...)` |
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85 | 85 | * |
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86 | 86 | * Вызов данного метода завершает конфигурирование сервиса. |
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87 | 87 | * |
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88 | 88 | * @param f Фабрика для создания экземпляра сервиса. |
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89 | 89 | */ |
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90 | 90 | factory(f: (refs: R) => NonNullable<T>): void; |
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91 | 91 | |
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92 | 92 | /** |
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93 | 93 | * Используется для указания зависимостей, которые потребуются фабричному |
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94 | 94 | * методу при создании нового экземпляра сервиса. Данный метод может быть |
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95 | 95 | * вызван несколько раз подряд, при этом вызовы этого метода имеют |
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96 | 96 | * кумулятивный эффект. |
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97 | 97 | * |
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98 | 98 | * @template X Тип объекта с зависимостями, которые требуется получить при |
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99 | 99 | * создании экземпляра фабрики при помощи фабричного метода. |
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100 | 100 | * @param refs Объект с описанием зависимостей |
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101 | 101 | * @returns Возвращает дескриптор сервиса, в котором указаны необходимые |
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102 | 102 | * зависимости |
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103 | 103 | */ |
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104 | 104 | wants<X extends DepsMap<S> & Record<keyof R & keyof X, never>>(refs: X): |
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105 | 105 | IDescriptorBuilder<S, T, R & { |
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106 | 106 | [k in keyof X]: Resolve<S, X[k]>; |
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107 | 107 | }, U> |
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108 | 108 | |
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109 | 109 | override<K extends U>(name: K, builder: BuildDescriptorFn<S, S[K], U>): this; |
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110 | 110 | override<X extends ConfigurationMapConstraint<S, U, keyof X>>(services: X): this; |
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111 | 111 | |
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112 | 112 | lifetime(lifetime: "singleton", typeId: string | number | object): this; |
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113 | 113 | lifetime(lifetime: ILifetime<T> | Exclude<ActivationType, "singleton">): this; |
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114 | 114 | |
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115 | 115 | /** Указывает функцию для освобождения экземпляра сервиса для случаев, когда |
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116 | 116 | * время жизни привязано к контейнеру. |
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117 | 117 | */ |
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118 | 118 | cleanup(cb: (item: T) => void): this; |
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119 | 119 | |
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120 | 120 | /** |
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121 | 121 | * Регистрирует в контейнере постоянное значение в качестве реализации сервиса. |
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122 | 122 | * |
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123 | 123 | * @param v Экземпляр реализации сервиса. |
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124 | 124 | */ |
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125 | 125 | value(v: NonNullable<T>): void; |
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126 | 126 | } |
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127 | 127 | |
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128 | 128 | export type BuildDescriptorFn<S, T, U extends keyof S> = (d: IDescriptorBuilder<S, T, Record<never, never>, U>) => void; |
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129 | 129 | |
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130 | 130 | /** |
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131 | 131 | * Конфигурация контейнера, состоит из набора функций, которые выполняют конфигурацию. |
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132 | 132 | * |
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133 | 133 | * Все параметры конфигурации являются обязательными, если требуется ввести |
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134 | 134 | * необязательные параметры, то нужно ограничить параметр типа {@linkcode K} |
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135 | 135 | * |
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136 | 136 | * @template S Сервисы доступные в контейнере |
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137 | 137 | * @template K Сервисы участвующие в конфигурации |
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138 | 138 | */ |
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139 | 139 | export type ConfigurationMap<S, K extends keyof S, U extends keyof S> = { |
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140 | 140 | [k in K]-?: BuildDescriptorFn<S, S[k], U> |
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141 | 141 | }; |
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142 | 142 | |
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143 | 143 | export type ConfigurationMapConstraint<S, U extends keyof S, X extends string | number | symbol> = { |
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144 | 144 | [k in X]-?: k extends U ? BuildDescriptorFn<S, S[k], U> : never; |
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145 | 145 | }; |
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146 | 146 | |
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147 | 147 | /** |
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148 | 148 | * The type constraint useful to restrict type parameters to prevent defining |
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149 | 149 | * the services with the {@link ContainerKeys} names. |
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150 | 150 | * |
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151 | 151 | * The constraint doesn't exclude using this keys but declares them as `never` |
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152 | 152 | * which effectively will lead using this keys to the error. |
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153 | 153 | */ |
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154 | 154 | export type ContainerServicesConstraint<S> = { |
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155 | 155 | [k in keyof S]: k extends ContainerKeys ? never : S[k]; |
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156 | 156 | }; |
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157 | 157 | |
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158 | 158 | export interface Descriptor<S, T> { |
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159 | 159 | |
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160 | 160 | /** This flags indicates that this registration can be replaced or overridden. */ |
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161 | 161 | readonly configurable?: boolean; |
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162 | 162 | |
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163 | 163 | /** If specified signals the activation context that a new service scope |
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164 | 164 | * should be created to isolate service overrides. |
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165 | 165 | */ |
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166 | 166 | readonly hasOverrides?: boolean; |
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167 | 167 | |
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168 | 168 | activate(context: IActivationContext<S>): NonNullable<T>; |
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169 | 169 | } |
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170 | 170 | |
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171 | export interface IActivationContext<S> extends ServiceLocator<S> { | |
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171 | /** The context used to initialize lifetime instance {@linkcode ILifetime} */ | |
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172 | export interface ILifetimeContext { | |
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172 | 173 | createLifetime<T>(): ILifetime<T>; |
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173 | 174 | |
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174 | 175 | createContainerLifetime<T>(): ILifetime<T>; |
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175 | 176 | |
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177 | } | |
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178 | ||
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179 | export interface IActivationContext<S> extends ILifetimeContext, ServiceLocator<S> { | |
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180 | ||
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176 | 181 | register<K extends keyof S>(name: K, service: DescriptorMap<S>[K]): void; |
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177 | 182 | } |
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178 | 183 | |
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179 | 184 | /** |
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180 | 185 | * Descriptors map for the specified services {@linkcode S}. All entries are |
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181 | 186 | * optional regardless the required or optional services in the original map. |
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182 | 187 | * |
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183 | 188 | * @template S Сервисы контекста активации |
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184 | 189 | * @template U Карта сервисов которые создаются дескрипторами |
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185 | 190 | */ |
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186 | 191 | export type DescriptorMap<S> = { |
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187 | 192 | [k in keyof S]?: Descriptor<S, S[k]>; |
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188 | 193 | }; |
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189 | 194 | |
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190 | 195 | type ContainerKeys = keyof ContainerProvided<object>; |
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191 | 196 | |
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192 | 197 | export type ContainerProvided<S extends ContainerServicesConstraint<S>> = { |
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193 | 198 | container: ServiceLocator<ContainerServices<S>>; |
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194 | 199 | |
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195 | 200 | childContainer: IContainerBuilder<ContainerServices<S>, Exclude<keyof S, ContainerKeys>>; |
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196 | 201 | }; |
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197 | 202 | |
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198 | 203 | |
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199 | 204 | /** |
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200 | 205 | * Таблица сервисов, которые предоставляет контейнер. |
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201 | 206 | * |
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202 | 207 | * Сервисы, предоставляемые контейнером не могут быть null или undefined. |
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203 | 208 | */ |
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204 | 209 | export type ContainerServices<S extends ContainerServicesConstraint<S>> = { |
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205 | 210 | [k in keyof S | ContainerKeys]: |
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206 | 211 | k extends ContainerKeys ? ContainerProvided<S>[k] : |
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207 | 212 | k extends keyof S ? S[k] : never |
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208 | 213 | }; |
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209 | 214 | |
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210 | 215 | |
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211 | 216 | /** |
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212 | 217 | * Returns the service declared in the type map {@link S}. |
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213 | 218 | * |
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214 | 219 | * |
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215 | 220 | */ |
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216 | 221 | export interface ServiceLocator<S> { |
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217 | 222 | resolve<K extends keyof S>(name: K): NonNullable<S[K]>; |
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218 | 223 | resolve<K extends keyof S, T>(name: K, def: T): NonNullable<S[K]> | T; |
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219 | 224 | } |
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220 | 225 | |
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221 | 226 | export interface LifetimeContainer { |
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222 | 227 | createLifetime<T>(): ILifetime<T>; |
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223 | 228 | } |
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224 | 229 | |
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225 | 230 | export interface IContainerBuilder<S, U extends keyof S> { |
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226 | 231 | createServiceBuilder<K extends U>(name: K): |
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227 | 232 | IDescriptorBuilder<S, S[K], Record<never, never>, U>; |
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228 | 233 | |
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229 | 234 | build(): ServiceLocator<S>; |
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230 | 235 | } |
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231 | 236 | |
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232 | 237 | |
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233 | 238 | export type ActivationType = "singleton" | "container" | "hierarchy" | "context" | "call"; |
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234 | 239 | |
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235 | 240 | /** |
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236 | 241 | * Интерфейс для управления жизнью экземпляра объекта. Каждая регистрация имеет |
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237 | 242 | * свой собственный объект `ILifetime`, который создается при первой активации |
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238 | 243 | */ |
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239 | 244 | export interface ILifetime<T> { |
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240 | 245 | /** Проверяет, что уже создан экземпляр объекта */ |
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241 | 246 | has(): boolean; |
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242 | 247 | |
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243 | 248 | get(): NonNullable<T>; |
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244 | 249 | |
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245 |
initialize(context: I |
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250 | initialize(context: ILifetimeContext): void; | |
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246 | 251 | |
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247 | 252 | store(item: NonNullable<T>, cleanup?: (item: NonNullable<T>) => void): void; |
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248 | 253 | |
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249 | 254 | toString(): string; |
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250 | 255 | } |
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251 | 256 | |
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257 | export interface ILifetimeSlot<T> { | |
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258 | has: () => boolean; | |
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259 | ||
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260 | get: () => T; | |
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261 | ||
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262 | initialize: () => void; | |
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263 | ||
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264 | store(item: T, cleanup?: (item: T) => void): void; | |
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265 | } | |
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266 | ||
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252 | 267 | export interface ILifetimeManager extends IDestroyable { |
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253 | 268 | create<T>(): ILifetime<T>; |
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254 | 269 | } |
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255 | 270 | |
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256 | 271 | export type ExtractRequired<T, K extends keyof T = keyof T> = { [p in K as (undefined extends T[p] ? never : p)]-?: T[p] }; |
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257 | 272 | |
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258 | 273 | export type ExtractRequiredKeys<T, K extends keyof T = keyof T> = { [p in K]-?: undefined extends T[p] ? never : p }[K]; No newline at end of file |
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