34 lines
894 B
JavaScript
34 lines
894 B
JavaScript
import ParseNode from '/imports/parser/parseTree/ParseNode.js';
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import ConstantNode from '/imports/parser/parseTree/ConstantNode.js';
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export default class UnaryOperatorNode extends ParseNode {
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constructor({operator, right}) {
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super(...arguments);
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this.operator = operator;
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this.right = right;
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}
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resolve(fn, scope, context){
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let rightNode = this.right[fn](scope, context);
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if (rightNode.type !== 'number'){
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return new UnaryOperatorNode({
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operator: this.operator,
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right: rightNode,
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});
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}
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let right = rightNode.value;
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let result;
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switch(this.operator){
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case '-': result = -right; break;
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case '+': result = +right; break;
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}
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return new ConstantNode({
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value: result,
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type: typeof result,
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});
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}
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toString(){
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let {right, operator} = this;
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return `${operator}${right.toString()}`;
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}
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}
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