mirror of
https://github.com/Instadapp/Swap-Aggregator-Subgraph.git
synced 2024-07-29 21:57:12 +00:00
246 lines
8.1 KiB
JavaScript
246 lines
8.1 KiB
JavaScript
import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
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import _createClass from "@babel/runtime/helpers/createClass";
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import _defineProperty from "@babel/runtime/helpers/defineProperty";
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import { Char, Type } from '../constants';
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import { YAMLSyntaxError } from '../errors';
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import { Alias } from './Alias';
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import { BlockValue } from './BlockValue';
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import { Collection } from './Collection';
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import { CollectionItem } from './CollectionItem';
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import { FlowCollection } from './FlowCollection';
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import { Node } from './Node';
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import { PlainValue } from './PlainValue';
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import { QuoteDouble } from './QuoteDouble';
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import { QuoteSingle } from './QuoteSingle';
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import { Range } from './Range';
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function createNewNode(type, props) {
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switch (type) {
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case Type.ALIAS:
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return new Alias(type, props);
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case Type.BLOCK_FOLDED:
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case Type.BLOCK_LITERAL:
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return new BlockValue(type, props);
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case Type.FLOW_MAP:
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case Type.FLOW_SEQ:
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return new FlowCollection(type, props);
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case Type.MAP_KEY:
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case Type.MAP_VALUE:
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case Type.SEQ_ITEM:
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return new CollectionItem(type, props);
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case Type.COMMENT:
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case Type.PLAIN:
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return new PlainValue(type, props);
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case Type.QUOTE_DOUBLE:
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return new QuoteDouble(type, props);
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case Type.QUOTE_SINGLE:
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return new QuoteSingle(type, props);
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/* istanbul ignore next */
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default:
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return null;
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// should never happen
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}
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}
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/**
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* @param {boolean} atLineStart - Node starts at beginning of line
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* @param {boolean} inFlow - true if currently in a flow context
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* @param {boolean} inCollection - true if currently in a collection context
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* @param {number} indent - Current level of indentation
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* @param {number} lineStart - Start of the current line
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* @param {Node} parent - The parent of the node
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* @param {string} src - Source of the YAML document
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*/
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export var ParseContext = /*#__PURE__*/function () {
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_createClass(ParseContext, null, [{
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key: "parseType",
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value: function parseType(src, offset, inFlow) {
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switch (src[offset]) {
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case '*':
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return Type.ALIAS;
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case '>':
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return Type.BLOCK_FOLDED;
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case '|':
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return Type.BLOCK_LITERAL;
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case '{':
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return Type.FLOW_MAP;
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case '[':
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return Type.FLOW_SEQ;
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case '?':
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return !inFlow && Node.atBlank(src, offset + 1, true) ? Type.MAP_KEY : Type.PLAIN;
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case ':':
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return !inFlow && Node.atBlank(src, offset + 1, true) ? Type.MAP_VALUE : Type.PLAIN;
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case '-':
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return !inFlow && Node.atBlank(src, offset + 1, true) ? Type.SEQ_ITEM : Type.PLAIN;
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case '"':
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return Type.QUOTE_DOUBLE;
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case "'":
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return Type.QUOTE_SINGLE;
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default:
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return Type.PLAIN;
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}
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}
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}]);
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function ParseContext() {
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var _this = this;
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var orig = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
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atLineStart = _ref.atLineStart,
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inCollection = _ref.inCollection,
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inFlow = _ref.inFlow,
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indent = _ref.indent,
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lineStart = _ref.lineStart,
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parent = _ref.parent;
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_classCallCheck(this, ParseContext);
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_defineProperty(this, "parseNode", function (overlay, start) {
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if (Node.atDocumentBoundary(_this.src, start)) return null;
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var context = new ParseContext(_this, overlay);
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var _context$parseProps = context.parseProps(start),
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props = _context$parseProps.props,
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type = _context$parseProps.type,
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valueStart = _context$parseProps.valueStart;
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var node = createNewNode(type, props);
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var offset = node.parse(context, valueStart);
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node.range = new Range(start, offset);
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/* istanbul ignore if */
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if (offset <= start) {
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// This should never happen, but if it does, let's make sure to at least
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// step one character forward to avoid a busy loop.
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node.error = new Error("Node#parse consumed no characters");
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node.error.parseEnd = offset;
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node.error.source = node;
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node.range.end = start + 1;
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}
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if (context.nodeStartsCollection(node)) {
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if (!node.error && !context.atLineStart && context.parent.type === Type.DOCUMENT) {
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node.error = new YAMLSyntaxError(node, 'Block collection must not have preceding content here (e.g. directives-end indicator)');
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}
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var collection = new Collection(node);
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offset = collection.parse(new ParseContext(context), offset);
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collection.range = new Range(start, offset);
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return collection;
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}
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return node;
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});
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this.atLineStart = atLineStart != null ? atLineStart : orig.atLineStart || false;
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this.inCollection = inCollection != null ? inCollection : orig.inCollection || false;
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this.inFlow = inFlow != null ? inFlow : orig.inFlow || false;
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this.indent = indent != null ? indent : orig.indent;
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this.lineStart = lineStart != null ? lineStart : orig.lineStart;
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this.parent = parent != null ? parent : orig.parent || {};
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this.root = orig.root;
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this.src = orig.src;
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}
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_createClass(ParseContext, [{
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key: "nodeStartsCollection",
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value: function nodeStartsCollection(node) {
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var inCollection = this.inCollection,
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inFlow = this.inFlow,
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src = this.src;
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if (inCollection || inFlow) return false;
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if (node instanceof CollectionItem) return true; // check for implicit key
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var offset = node.range.end;
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if (src[offset] === '\n' || src[offset - 1] === '\n') return false;
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offset = Node.endOfWhiteSpace(src, offset);
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return src[offset] === ':';
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} // Anchor and tag are before type, which determines the node implementation
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// class; hence this intermediate step.
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}, {
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key: "parseProps",
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value: function parseProps(offset) {
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var inFlow = this.inFlow,
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parent = this.parent,
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src = this.src;
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var props = [];
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var lineHasProps = false;
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offset = Node.endOfWhiteSpace(src, offset);
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var ch = src[offset];
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while (ch === Char.ANCHOR || ch === Char.COMMENT || ch === Char.TAG || ch === '\n') {
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if (ch === '\n') {
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var lineStart = offset + 1;
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var inEnd = Node.endOfIndent(src, lineStart);
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var indentDiff = inEnd - (lineStart + this.indent);
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var noIndicatorAsIndent = parent.type === Type.SEQ_ITEM && parent.context.atLineStart;
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if (!Node.nextNodeIsIndented(src[inEnd], indentDiff, !noIndicatorAsIndent)) break;
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this.atLineStart = true;
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this.lineStart = lineStart;
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lineHasProps = false;
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offset = inEnd;
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} else if (ch === Char.COMMENT) {
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var end = Node.endOfLine(src, offset + 1);
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props.push(new Range(offset, end));
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offset = end;
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} else {
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var _end = Node.endOfIdentifier(src, offset + 1);
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if (ch === Char.TAG && src[_end] === ',' && /^[a-zA-Z0-9-]+\.[a-zA-Z0-9-]+,\d\d\d\d(-\d\d){0,2}\/\S/.test(src.slice(offset + 1, _end + 13))) {
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// Let's presume we're dealing with a YAML 1.0 domain tag here, rather
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// than an empty but 'foo.bar' private-tagged node in a flow collection
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// followed without whitespace by a plain string starting with a year
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// or date divided by something.
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_end = Node.endOfIdentifier(src, _end + 5);
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}
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props.push(new Range(offset, _end));
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lineHasProps = true;
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offset = Node.endOfWhiteSpace(src, _end);
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}
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ch = src[offset];
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} // '- &a : b' has an anchor on an empty node
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if (lineHasProps && ch === ':' && Node.atBlank(src, offset + 1, true)) offset -= 1;
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var type = ParseContext.parseType(src, offset, inFlow);
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return {
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props: props,
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type: type,
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valueStart: offset
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};
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}
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/**
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* Parses a node from the source
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* @param {ParseContext} overlay
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* @param {number} start - Index of first non-whitespace character for the node
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* @returns {?Node} - null if at a document boundary
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*/
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}]);
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return ParseContext;
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}(); |