44 lines
1.2 KiB
TypeScript
44 lines
1.2 KiB
TypeScript
interface Environment {
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global: typeof globalThis & Record<string, any>;
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captureErr: boolean;
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internals: any;
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}
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function setProps<
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TargetT extends object,
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DescT extends {
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[x in Exclude<keyof TargetT, 'constructor'> ]?: TargetT[x] extends ((...args: infer ArgsT) => infer RetT) ?
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((this: TargetT, ...args: ArgsT) => RetT) :
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TargetT[x]
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}
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>(target: TargetT, env: Environment, desc: DescT) {
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var props = env.internals.keys(desc, false);
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for (var i = 0; i < props.length; i++) {
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var key = props[i];
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env.internals.defineField(
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target, key, (desc as any)[key],
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true, // writable
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false, // enumerable
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true // configurable
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);
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}
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}
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function setConstr<ConstrT, T extends { constructor: ConstrT }>(target: T, constr: ConstrT, env: Environment) {
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env.internals.defineField(
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target, 'constructor', constr,
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true, // writable
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false, // enumerable
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true // configurable
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);
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}
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function wrapI(max: number, i: number) {
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i |= 0;
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if (i < 0) i = max + i;
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return i;
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}
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function clampI(max: number, i: number) {
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if (i < 0) i = 0;
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if (i > max) i = max;
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return i;
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} |