@visactor/vchart/esm/compile/state-manager.js

charts lib based @visactor/VGrammar

import { merge } from "@visactor/vutils";

import { CompilableBase } from "./compilable-base";

export class StateManager extends CompilableBase {
    compile() {}
    getStateMap() {
        return this._stateMap;
    }
    _getDefaultStateMap() {
        return {};
    }
    constructor(options) {
        super(options), this.initStateMap();
    }
    initStateMap(state) {
        this._stateMap = null != state ? state : this._getDefaultStateMap();
    }
    updateState(newState, noRender) {
        if (newState && (merge(this._stateMap, newState), !noRender)) return this.getCompiler().renderNextTick();
    }
}
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