111 lines
2.5 KiB
JavaScript
111 lines
2.5 KiB
JavaScript
"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.needsParens = needsParens;
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exports.needsWhitespace = needsWhitespace;
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exports.needsWhitespaceAfter = needsWhitespaceAfter;
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exports.needsWhitespaceBefore = needsWhitespaceBefore;
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var whitespace = require("./whitespace");
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var parens = require("./parentheses");
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var _t = require("@babel/types");
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const {
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FLIPPED_ALIAS_KEYS,
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isCallExpression,
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isExpressionStatement,
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isMemberExpression,
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isNewExpression
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} = _t;
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function expandAliases(obj) {
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const newObj = {};
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function add(type, func) {
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const fn = newObj[type];
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newObj[type] = fn ? function (node, parent, stack) {
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const result = fn(node, parent, stack);
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return result == null ? func(node, parent, stack) : result;
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} : func;
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}
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for (const type of Object.keys(obj)) {
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const aliases = FLIPPED_ALIAS_KEYS[type];
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if (aliases) {
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for (const alias of aliases) {
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add(alias, obj[type]);
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}
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} else {
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add(type, obj[type]);
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}
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}
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return newObj;
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}
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const expandedParens = expandAliases(parens);
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const expandedWhitespaceNodes = expandAliases(whitespace.nodes);
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const expandedWhitespaceList = expandAliases(whitespace.list);
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function find(obj, node, parent, printStack) {
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const fn = obj[node.type];
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return fn ? fn(node, parent, printStack) : null;
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}
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function isOrHasCallExpression(node) {
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if (isCallExpression(node)) {
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return true;
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}
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return isMemberExpression(node) && isOrHasCallExpression(node.object);
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}
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function needsWhitespace(node, parent, type) {
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if (!node) return 0;
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if (isExpressionStatement(node)) {
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node = node.expression;
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}
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let linesInfo = find(expandedWhitespaceNodes, node, parent);
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if (!linesInfo) {
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const items = find(expandedWhitespaceList, node, parent);
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if (items) {
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for (let i = 0; i < items.length; i++) {
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linesInfo = needsWhitespace(items[i], node, type);
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if (linesInfo) break;
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}
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}
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}
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if (typeof linesInfo === "object" && linesInfo !== null) {
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return linesInfo[type] || 0;
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}
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return 0;
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}
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function needsWhitespaceBefore(node, parent) {
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return needsWhitespace(node, parent, "before");
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}
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function needsWhitespaceAfter(node, parent) {
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return needsWhitespace(node, parent, "after");
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}
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function needsParens(node, parent, printStack) {
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if (!parent) return false;
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if (isNewExpression(parent) && parent.callee === node) {
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if (isOrHasCallExpression(node)) return true;
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}
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return find(expandedParens, node, parent, printStack);
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} |