50 lines
1.1 KiB
JavaScript
50 lines
1.1 KiB
JavaScript
import Parser from "./index";
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import { SourceLocation } from "../util/location";
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// Start an AST node, attaching a start offset.
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const pp = Parser.prototype;
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export class Node {
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constructor(parser, pos, loc) {
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this.type = "";
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this.start = pos;
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this.end = 0;
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this.loc = new SourceLocation(loc);
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}
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__clone() {
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var node2 = new Node;
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for (var key in this) node2[key] = this[key];
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return node2;
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}
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}
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pp.startNode = function () {
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return new Node(this, this.state.start, this.state.startLoc);
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};
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pp.startNodeAt = function (pos, loc) {
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return new Node(this, pos, loc);
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};
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function finishNodeAt(node, type, pos, loc) {
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node.type = type;
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node.end = pos;
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node.loc.end = loc;
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this.processComment(node);
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return node;
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}
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// Finish an AST node, adding `type` and `end` properties.
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pp.finishNode = function (node, type) {
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return finishNodeAt.call(this, node, type, this.state.lastTokEnd, this.state.lastTokEndLoc);
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};
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// Finish node at given position
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pp.finishNodeAt = function (node, type, pos, loc) {
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return finishNodeAt.call(this, node, type, pos, loc);
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};
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