26 lines
661 B
JavaScript
26 lines
661 B
JavaScript
import ParseNode from '/imports/parser/parseTree/ParseNode.js';
|
|
|
|
export default class IndexNode extends ParseNode {
|
|
constructor({array, index}) {
|
|
super();
|
|
this.array = array;
|
|
this.index = index;
|
|
}
|
|
compile(){
|
|
let index = this.index.compile();
|
|
if (index.constructor.name === 'ConstantNode' && index.type === 'number'){
|
|
let selection = this.array.values[index.value];
|
|
if (selection){
|
|
return selection.compile();
|
|
}
|
|
}
|
|
return new IndexNode({
|
|
array: this.array.compile(),
|
|
index: this.index.compile(),
|
|
});
|
|
}
|
|
toString(){
|
|
return `${this.array.toString()}[${this.index.toString()}]`;
|
|
}
|
|
}
|