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import { ClassHash } from "../../src/defs" |
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3
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// Nope |
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// type tExcluder<S extends Record<string, ClassHash>> |
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// = ( |
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// <E extends{[K in keyof S]?: ClassHash}>(exclude: E) => typeof exclude extends Record<infer E, ClassHash> |
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// ? { [P in Exclude<keyof S, keyof E>]: ClassHash; } & tExcluder<{ [P in Exclude<keyof S, keyof E>]: ClassHash; }> |
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8
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// : never |
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// ); |
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12
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// type tExcluder<S extends Record<string, ClassHash>> |
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// = ( |
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// <E extends Record<string, ClassHash>>(exclude: E) => { [P in Exclude<keyof S, keyof E>]: ClassHash; } |
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// & tExcluder<{ [P in Exclude<keyof S, keyof E>]: ClassHash; }> |
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// ); |
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// type tExcluder<S extends Record<string, ClassHash>> |
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// = ( |
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// <E extends Record<string, ClassHash>>(exclude: E) => keyof E extends keyof S |
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// ? { [P in Exclude<keyof S, keyof E>]: ClassHash; } |
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// & tExcluder<{ [P in Exclude<keyof S, keyof E>]: ClassHash; }> |
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// : {[P in Exclude<keyof E, keyof S>]: never;} |
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// ); |
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type tExcluder<S extends Record<string, ClassHash>> |
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= ( |
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<E extends {[K in keyof S]?: ClassHash}>(exclude: E) => |
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// keyof E extends keyof S ? |
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{ [K in Exclude<keyof S, keyof E>]: ClassHash; } |
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& tExcluder<{ [P in Exclude<keyof S, keyof E>]: ClassHash; }> |
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// : {[P in Exclude<keyof E, keyof S>]: never;} |
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); |
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function exclusion< |
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S extends Record<string, ClassHash>, |
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E extends {[K in keyof S]?: ClassHash} |
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>( |
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source: S, ex: E |
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) { |
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const filtered = {...source} |
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for (const k in ex) { |
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delete filtered[k] |
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} |
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const host = ( |
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e: { [P in Exclude<keyof S, keyof E>]?: ClassHash; } |
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) => exclusion( |
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filtered as { [P in Exclude<keyof S, keyof E>]: ClassHash; }, |
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e |
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) |
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54
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for (const key in filtered) |
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//@ts-expect-error |
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host[key] |
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= filtered[key] |
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60
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return host as tExcluder<{ [P in Exclude<keyof S, keyof E>]: ClassHash; }> |
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} |
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63
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const source: Record<"a"|"b"|"c"|"d"|"e", ClassHash> = {a: "a", b: undefined, c: "c", d: undefined, e: undefined} |
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64
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65
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const step0 = exclusion( |
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source, |
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//@ts-expect-error 'z' does not exist in type |
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{z: undefined} |
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) |
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, answ0: typeof step0 = { |
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//@ts-expect-error |
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whatever: true |
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} |
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, step1 = exclusion(source, {a: "a", b: undefined}) |
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76
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//@ts-expect-error |
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step1({"c": undefined, "z": undefined}) |
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() |
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79
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80
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const step2 = step1({"c": undefined}) |
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//@ts-expect-error |
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, {c} = step2 |
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, step3 = {...step2({ |
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//@ts-expect-error |
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"z": "" |
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86
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})} |
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, result = {...step2} |
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, checks: Record<string, typeof result> = { |
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89
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"output": {d: "", e: ""}, |
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90
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"unknown": { |
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//@ts-expect-error |
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unknown: "" |
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93
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}, |
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94
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//@ts-expect-error |
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95
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"lost": { |
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96
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d: "" |
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97
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}, |
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98
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"previously ommited": { |
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99
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d: "", e: "", |
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100
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//@ts-expect-error |
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101
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a: "" |
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102
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} |
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103
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} |
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104
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105
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const unknown0 = exclusion({} as Record<string, ClassHash>, {a: "a"}) |
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106
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//todo @ts-error |
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107
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, unknown1 = unknown0({a: "a"}) |
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108
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109
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export {answ0, step3, checks, unknown1} |
askirmas /
react-classnaming
