29 lines
786 B
JavaScript
29 lines
786 B
JavaScript
import ParseNode from '/imports/parser/parseTree/ParseNode.js';
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export default class IndexNode extends ParseNode {
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constructor({array, index}) {
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super(...arguments);
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this.array = array;
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this.index = index;
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}
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resolve(fn, scope, context){
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let index = this.index[fn](scope, context);
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if (index.isInteger){
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let selection = this.array.values[index.value - 1];
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if (selection){
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let result = selection[fn](scope, context);
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result.inheritDetails([index, this]);
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return result;
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}
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}
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return new IndexNode({
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array: this.array[fn](scope, context),
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index: this.index[fn](scope, context),
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previousNodes: [this],
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});
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}
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toString(){
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return `${this.array.toString()}[${this.index.toString()}]`;
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}
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}
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