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