50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
export function APIPathGen(obj, callback, path) {
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return new Proxy(obj, {
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get(target, key) {
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let nextPath;
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if (path === undefined) {
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nextPath = [key.toString()];
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}
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else {
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nextPath = [...path, key.toString()];
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}
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const varType = target.__nextVarType;
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let next;
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if (varType !== undefined) {
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if (typeof key !== varType) {
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throw `${key} is not ${varType}`;
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}
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next = target.next;
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}
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else if (key in target) {
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next = target[key];
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}
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else {
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throw `${nextPath} is not exists`;
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}
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if (typeof (next) === 'function') {
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return callback(nextPath);
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}
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return APIPathGen(next, callback, nextPath);
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}
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})
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}
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//generic 인자로 '자동'을 주려면 생략해야하므로 2단 호출
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export function StrVar() {
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return (next) => {
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return {
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__nextVarType: 'string',
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next
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}
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}
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}
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export function NumVar(next) {
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return {
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__nextVarType: 'number',
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next
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}
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} |