| 64 | } |
| 65 | |
| 66 | export class Boundary { |
| 67 | /** @type {Boundary | null} */ |
| 68 | parent; |
| 69 | |
| 70 | is_pending = false; |
| 71 | |
| 72 | /** |
| 73 | * API-level transformError transform function. Transforms errors before they reach the `failed` snippet. |
| 74 | * Inherited from parent boundary, or defaults to identity. |
| 75 | * @type {(error: unknown) => unknown} |
| 76 | */ |
| 77 | transform_error; |
| 78 | |
| 79 | /** @type {TemplateNode} */ |
| 80 | #anchor; |
| 81 | |
| 82 | /** @type {TemplateNode | null} */ |
| 83 | #hydrate_open = hydrating ? hydrate_node : null; |
| 84 | |
| 85 | /** @type {BoundaryProps} */ |
| 86 | #props; |
| 87 | |
| 88 | /** @type {((anchor: Node) => void)} */ |
| 89 | #children; |
| 90 | |
| 91 | /** @type {Effect} */ |
| 92 | #effect; |
| 93 | |
| 94 | /** @type {Effect | null} */ |
| 95 | #main_effect = null; |
| 96 | |
| 97 | /** @type {Effect | null} */ |
| 98 | #pending_effect = null; |
| 99 | |
| 100 | /** @type {Effect | null} */ |
| 101 | #failed_effect = null; |
| 102 | |
| 103 | /** @type {DocumentFragment | null} */ |
| 104 | #offscreen_fragment = null; |
| 105 | |
| 106 | #local_pending_count = 0; |
| 107 | #pending_count = 0; |
| 108 | #pending_count_update_queued = false; |
| 109 | |
| 110 | /** @type {Set<Effect>} */ |
| 111 | #dirty_effects = new Set(); |
| 112 | |
| 113 | /** @type {Set<Effect>} */ |
| 114 | #maybe_dirty_effects = new Set(); |
| 115 | |
| 116 | /** |
| 117 | * A source containing the number of pending async deriveds/expressions. |
| 118 | * Only created if `$effect.pending()` is used inside the boundary, |
| 119 | * otherwise updating the source results in needless `Batch.ensure()` |
| 120 | * calls followed by no-op flushes |
| 121 | * @type {Source<number> | null} |
| 122 | */ |
| 123 | #effect_pending = null; |
nothing calls this directly
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