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app_vue/node_modules/@babel/generator/lib/token-map.js
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191
app_vue/node_modules/@babel/generator/lib/token-map.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.TokenMap = void 0;
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var _t = require("@babel/types");
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const {
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traverseFast,
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VISITOR_KEYS
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} = _t;
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class TokenMap {
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constructor(ast, tokens, source) {
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this._tokens = void 0;
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this._source = void 0;
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this._nodesToTokenIndexes = new Map();
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this._nodesOccurrencesCountCache = new Map();
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this._tokensCache = new Map();
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this._tokens = tokens;
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this._source = source;
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traverseFast(ast, node => {
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const indexes = this._getTokensIndexesOfNode(node);
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if (indexes.length > 0) this._nodesToTokenIndexes.set(node, indexes);
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});
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this._tokensCache = null;
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}
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has(node) {
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return this._nodesToTokenIndexes.has(node);
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}
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getIndexes(node) {
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return this._nodesToTokenIndexes.get(node);
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}
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find(node, condition) {
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const indexes = this._nodesToTokenIndexes.get(node);
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if (indexes) {
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for (let k = 0; k < indexes.length; k++) {
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const index = indexes[k];
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const tok = this._tokens[index];
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if (condition(tok, index)) return tok;
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}
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}
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return null;
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}
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findLastIndex(node, condition) {
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const indexes = this._nodesToTokenIndexes.get(node);
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if (indexes) {
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for (let k = indexes.length - 1; k >= 0; k--) {
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const index = indexes[k];
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const tok = this._tokens[index];
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if (condition(tok, index)) return index;
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}
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}
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return -1;
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}
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findMatching(node, test, occurrenceCount = 0) {
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const indexes = this._nodesToTokenIndexes.get(node);
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if (indexes) {
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let i = 0;
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const count = occurrenceCount;
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if (count > 1) {
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const cache = this._nodesOccurrencesCountCache.get(node);
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if (cache && cache.test === test && cache.count < count) {
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i = cache.i + 1;
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occurrenceCount -= cache.count + 1;
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}
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}
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for (; i < indexes.length; i++) {
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const tok = this._tokens[indexes[i]];
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if (this.matchesOriginal(tok, test)) {
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if (occurrenceCount === 0) {
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if (count > 0) {
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this._nodesOccurrencesCountCache.set(node, {
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test,
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count,
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i
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});
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}
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return tok;
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}
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occurrenceCount--;
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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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matchesOriginal(token, test) {
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if (token.end - token.start !== test.length) return false;
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if (token.value != null) return token.value === test;
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return this._source.startsWith(test, token.start);
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}
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startMatches(node, test) {
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const indexes = this._nodesToTokenIndexes.get(node);
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if (!indexes) return false;
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const tok = this._tokens[indexes[0]];
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if (tok.start !== node.start) return false;
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return this.matchesOriginal(tok, test);
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}
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endMatches(node, test) {
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const indexes = this._nodesToTokenIndexes.get(node);
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if (!indexes) return false;
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const tok = this._tokens[indexes[indexes.length - 1]];
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if (tok.end !== node.end) return false;
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return this.matchesOriginal(tok, test);
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}
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_getTokensIndexesOfNode(node) {
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if (node.start == null || node.end == null) return [];
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const {
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first,
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last
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} = this._findTokensOfNode(node, 0, this._tokens.length - 1);
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let low = first;
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const children = childrenIterator(node);
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if ((node.type === "ExportNamedDeclaration" || node.type === "ExportDefaultDeclaration") && node.declaration && node.declaration.type === "ClassDeclaration") {
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children.next();
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}
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const indexes = [];
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for (const child of children) {
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if (child == null) continue;
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if (child.start == null || child.end == null) continue;
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const childTok = this._findTokensOfNode(child, low, last);
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const high = childTok.first;
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for (let k = low; k < high; k++) indexes.push(k);
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low = childTok.last + 1;
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}
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for (let k = low; k <= last; k++) indexes.push(k);
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return indexes;
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}
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_findTokensOfNode(node, low, high) {
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const cached = this._tokensCache.get(node);
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if (cached) return cached;
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const first = this._findFirstTokenOfNode(node.start, low, high);
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const last = this._findLastTokenOfNode(node.end, first, high);
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this._tokensCache.set(node, {
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first,
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last
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});
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return {
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first,
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last
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};
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}
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_findFirstTokenOfNode(start, low, high) {
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while (low <= high) {
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const mid = high + low >> 1;
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if (start < this._tokens[mid].start) {
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high = mid - 1;
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} else if (start > this._tokens[mid].start) {
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low = mid + 1;
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} else {
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return mid;
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}
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}
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return low;
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}
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_findLastTokenOfNode(end, low, high) {
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while (low <= high) {
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const mid = high + low >> 1;
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if (end < this._tokens[mid].end) {
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high = mid - 1;
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} else if (end > this._tokens[mid].end) {
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low = mid + 1;
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} else {
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return mid;
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}
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}
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return high;
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}
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}
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exports.TokenMap = TokenMap;
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function* childrenIterator(node) {
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if (node.type === "TemplateLiteral") {
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yield node.quasis[0];
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for (let i = 1; i < node.quasis.length; i++) {
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yield node.expressions[i - 1];
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yield node.quasis[i];
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}
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return;
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}
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const keys = VISITOR_KEYS[node.type];
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for (const key of keys) {
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const child = node[key];
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if (!child) continue;
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if (Array.isArray(child)) {
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yield* child;
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} else {
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yield child;
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}
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}
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}
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//# sourceMappingURL=token-map.js.map
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