mirror of https://github.com/sveltejs/svelte
- `AbstractBlock` contains the Block' specific rules - extends a `Node` - has a `block` and `children` - can warn if emptypull/2608/head
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import Block from '../../render-dom/Block';
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import Component from './../../Component';
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import Node from './Node';
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export default class AbstractBlock extends Node {
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block: Block;
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children: Node[];
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constructor(component: Component, parent, scope, info: any) {
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super(component, parent, scope, info);
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}
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warn_if_empty_block() {
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if (!this.children || this.children.length > 1) return;
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const child = this.children[0];
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if (!child || (child.type === 'Text' && !/[^ \r\n\f\v\t]/.test(child.data))) {
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this.component.warn(this, {
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code: 'empty-block',
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message: 'Empty block'
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});
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}
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}
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}
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