mirror of
https://github.com/Instadapp/Swap-Aggregator-Subgraph.git
synced 2024-07-29 21:57:12 +00:00
360 lines
8.5 KiB
JavaScript
360 lines
8.5 KiB
JavaScript
"use strict";
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exports.Node = void 0;
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var _constants = require("../constants");
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var _sourceUtils = require("./source-utils");
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var _Range = require("./Range");
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/** Root class of all nodes */
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class Node {
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static addStringTerminator(src, offset, str) {
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if (str[str.length - 1] === '\n') return str;
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const next = Node.endOfWhiteSpace(src, offset);
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return next >= src.length || src[next] === '\n' ? str + '\n' : str;
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} // ^(---|...)
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static atDocumentBoundary(src, offset, sep) {
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const ch0 = src[offset];
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if (!ch0) return true;
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const prev = src[offset - 1];
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if (prev && prev !== '\n') return false;
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if (sep) {
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if (ch0 !== sep) return false;
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} else {
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if (ch0 !== _constants.Char.DIRECTIVES_END && ch0 !== _constants.Char.DOCUMENT_END) return false;
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}
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const ch1 = src[offset + 1];
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const ch2 = src[offset + 2];
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if (ch1 !== ch0 || ch2 !== ch0) return false;
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const ch3 = src[offset + 3];
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return !ch3 || ch3 === '\n' || ch3 === '\t' || ch3 === ' ';
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}
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static endOfIdentifier(src, offset) {
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let ch = src[offset];
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const isVerbatim = ch === '<';
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const notOk = isVerbatim ? ['\n', '\t', ' ', '>'] : ['\n', '\t', ' ', '[', ']', '{', '}', ','];
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while (ch && notOk.indexOf(ch) === -1) ch = src[offset += 1];
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if (isVerbatim && ch === '>') offset += 1;
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return offset;
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}
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static endOfIndent(src, offset) {
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let ch = src[offset];
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while (ch === ' ') ch = src[offset += 1];
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return offset;
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}
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static endOfLine(src, offset) {
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let ch = src[offset];
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while (ch && ch !== '\n') ch = src[offset += 1];
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return offset;
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}
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static endOfWhiteSpace(src, offset) {
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let ch = src[offset];
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while (ch === '\t' || ch === ' ') ch = src[offset += 1];
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return offset;
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}
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static startOfLine(src, offset) {
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let ch = src[offset - 1];
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if (ch === '\n') return offset;
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while (ch && ch !== '\n') ch = src[offset -= 1];
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return offset + 1;
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}
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/**
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* End of indentation, or null if the line's indent level is not more
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* than `indent`
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*
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* @param {string} src
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* @param {number} indent
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* @param {number} lineStart
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* @returns {?number}
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*/
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static endOfBlockIndent(src, indent, lineStart) {
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const inEnd = Node.endOfIndent(src, lineStart);
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if (inEnd > lineStart + indent) {
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return inEnd;
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} else {
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const wsEnd = Node.endOfWhiteSpace(src, inEnd);
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const ch = src[wsEnd];
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if (!ch || ch === '\n') return wsEnd;
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}
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return null;
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}
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static atBlank(src, offset, endAsBlank) {
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const ch = src[offset];
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return ch === '\n' || ch === '\t' || ch === ' ' || endAsBlank && !ch;
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}
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static nextNodeIsIndented(ch, indentDiff, indicatorAsIndent) {
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if (!ch || indentDiff < 0) return false;
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if (indentDiff > 0) return true;
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return indicatorAsIndent && ch === '-';
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} // should be at line or string end, or at next non-whitespace char
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static normalizeOffset(src, offset) {
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const ch = src[offset];
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return !ch ? offset : ch !== '\n' && src[offset - 1] === '\n' ? offset - 1 : Node.endOfWhiteSpace(src, offset);
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} // fold single newline into space, multiple newlines to N - 1 newlines
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// presumes src[offset] === '\n'
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static foldNewline(src, offset, indent) {
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let inCount = 0;
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let error = false;
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let fold = '';
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let ch = src[offset + 1];
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while (ch === ' ' || ch === '\t' || ch === '\n') {
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switch (ch) {
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case '\n':
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inCount = 0;
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offset += 1;
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fold += '\n';
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break;
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case '\t':
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if (inCount <= indent) error = true;
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offset = Node.endOfWhiteSpace(src, offset + 2) - 1;
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break;
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case ' ':
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inCount += 1;
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offset += 1;
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break;
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}
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ch = src[offset + 1];
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}
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if (!fold) fold = ' ';
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if (ch && inCount <= indent) error = true;
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return {
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fold,
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offset,
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error
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};
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}
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constructor(type, props, context) {
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Object.defineProperty(this, 'context', {
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value: context || null,
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writable: true
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});
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this.error = null;
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this.range = null;
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this.valueRange = null;
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this.props = props || [];
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this.type = type;
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this.value = null;
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}
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getPropValue(idx, key, skipKey) {
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if (!this.context) return null;
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const {
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src
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} = this.context;
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const prop = this.props[idx];
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return prop && src[prop.start] === key ? src.slice(prop.start + (skipKey ? 1 : 0), prop.end) : null;
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}
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get anchor() {
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for (let i = 0; i < this.props.length; ++i) {
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const anchor = this.getPropValue(i, _constants.Char.ANCHOR, true);
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if (anchor != null) return anchor;
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}
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return null;
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}
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get comment() {
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const comments = [];
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for (let i = 0; i < this.props.length; ++i) {
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const comment = this.getPropValue(i, _constants.Char.COMMENT, true);
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if (comment != null) comments.push(comment);
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}
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return comments.length > 0 ? comments.join('\n') : null;
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}
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commentHasRequiredWhitespace(start) {
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const {
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src
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} = this.context;
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if (this.header && start === this.header.end) return false;
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if (!this.valueRange) return false;
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const {
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end
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} = this.valueRange;
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return start !== end || Node.atBlank(src, end - 1);
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}
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get hasComment() {
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if (this.context) {
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const {
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src
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} = this.context;
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for (let i = 0; i < this.props.length; ++i) {
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if (src[this.props[i].start] === _constants.Char.COMMENT) return true;
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}
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}
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return false;
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}
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get hasProps() {
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if (this.context) {
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const {
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src
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} = this.context;
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for (let i = 0; i < this.props.length; ++i) {
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if (src[this.props[i].start] !== _constants.Char.COMMENT) return true;
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}
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}
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return false;
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}
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get includesTrailingLines() {
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return false;
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}
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get jsonLike() {
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const jsonLikeTypes = [_constants.Type.FLOW_MAP, _constants.Type.FLOW_SEQ, _constants.Type.QUOTE_DOUBLE, _constants.Type.QUOTE_SINGLE];
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return jsonLikeTypes.indexOf(this.type) !== -1;
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}
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get rangeAsLinePos() {
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if (!this.range || !this.context) return undefined;
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const start = (0, _sourceUtils.getLinePos)(this.range.start, this.context.root);
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if (!start) return undefined;
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const end = (0, _sourceUtils.getLinePos)(this.range.end, this.context.root);
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return {
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start,
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end
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};
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}
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get rawValue() {
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if (!this.valueRange || !this.context) return null;
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const {
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start,
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end
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} = this.valueRange;
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return this.context.src.slice(start, end);
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}
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get tag() {
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for (let i = 0; i < this.props.length; ++i) {
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const tag = this.getPropValue(i, _constants.Char.TAG, false);
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if (tag != null) {
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if (tag[1] === '<') {
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return {
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verbatim: tag.slice(2, -1)
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};
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} else {
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// eslint-disable-next-line no-unused-vars
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const [_, handle, suffix] = tag.match(/^(.*!)([^!]*)$/);
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return {
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handle,
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suffix
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};
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}
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}
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}
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return null;
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}
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get valueRangeContainsNewline() {
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if (!this.valueRange || !this.context) return false;
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const {
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start,
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end
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} = this.valueRange;
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const {
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src
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} = this.context;
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for (let i = start; i < end; ++i) {
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if (src[i] === '\n') return true;
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}
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return false;
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}
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parseComment(start) {
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const {
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src
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} = this.context;
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if (src[start] === _constants.Char.COMMENT) {
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const end = Node.endOfLine(src, start + 1);
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const commentRange = new _Range.Range(start, end);
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this.props.push(commentRange);
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return end;
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}
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return start;
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}
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/**
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* Populates the `origStart` and `origEnd` values of all ranges for this
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* node. Extended by child classes to handle descendant nodes.
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*
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* @param {number[]} cr - Positions of dropped CR characters
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* @param {number} offset - Starting index of `cr` from the last call
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* @returns {number} - The next offset, matching the one found for `origStart`
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*/
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setOrigRanges(cr, offset) {
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if (this.range) offset = this.range.setOrigRange(cr, offset);
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if (this.valueRange) this.valueRange.setOrigRange(cr, offset);
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this.props.forEach(prop => prop.setOrigRange(cr, offset));
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return offset;
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}
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toString() {
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const {
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context: {
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src
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},
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range,
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value
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} = this;
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if (value != null) return value;
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const str = src.slice(range.start, range.end);
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return Node.addStringTerminator(src, range.end, str);
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}
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}
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exports.Node = Node; |