@visactor/vchart/esm/util/spec/transform.js

charts lib based @visactor/VGrammar

import { isArray, isFunction, isPlainObject, isString } from "@visactor/vutils";

export function specTransform(spec, special = {
    data: v => v
}) {
    if (!spec) return spec;
    if (spec.constructor === Object) {
        const result = {};
        for (const key in spec) if (Object.prototype.hasOwnProperty.call(spec, key)) {
            if (special[key]) {
                result[key] = special[key](spec[key]);
                continue;
            }
            result[key] = specTransform(spec[key], special);
        }
        return result;
    }
    return isArray(spec) ? spec.map((s => specTransform(s, special))) : spec;
}

export function functionTransform(value, registry) {
    var _a;
    if (!value) return value;
    if (isString(value)) return null !== (_a = registry.getFunction(value)) && void 0 !== _a ? _a : value;
    if (isPlainObject(value)) {
        const result = {};
        for (const key in value) Object.prototype.hasOwnProperty.call(value, key) && (result[key] = functionTransform(value[key], registry));
        return result;
    }
    return isArray(value) ? value.map((item => functionTransform(item, registry))) : value;
}

export function transformFunctionAttribute(att, ...args) {
    return isFunction(att) ? att(...args) : att;
}
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