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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | 26x 26x 3586x 26x 18x 10x 8x | import { OptionalType, RequiredType } from "@jonloucks/contracts-ts/api/Types";
/**
* Binding strategy. Enumish type.
* <p>
* Used to dictate how or if binding should happen when the Contract is already bound.
* </p>
*/
export type BindStrategy =
/**
* Bind the new promisor to the given contract always or else throws an error.
*/
"ALWAYS" |
/**
* Bind the new promisor to the given contract if not already bound.
*/
"IF_NOT_BOUND" |
/**
* Bind the new promisor to the given contract only if replacement is allowed
*/
"IF_ALLOWED";
/**
* The default binding strategy
*/
export const DEFAULT_BIND_STRATEGY: BindStrategy = "IF_ALLOWED"
/**
* Type alias for optional BindStrategy
*/
export type BindStrategyType = OptionalType<BindStrategy>;
/**
* Resolve the given BindStrategy or return the default
*
* @param bindStrategy the bind strategy to resolve
* @return the resolved bind strategy
*/
export function resolveBindStrategy(bindStrategy: OptionalType<BindStrategy>): RequiredType<BindStrategy> {
return bindStrategy ?? DEFAULT_BIND_STRATEGY;
}
/**
* Check if given value is a BindStrategy or null/undefined
* @param instance the value to check
* @returns true if value is a BindStrategy or null/undefined
*/
export function guard(instance: unknown): instance is OptionalType<BindStrategy> {
switch (instance) {
case undefined:
case null:
case "ALWAYS":
case "IF_NOT_BOUND":
case "IF_ALLOWED":
return true;
default:
return false;
}
}
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