347 lines
10 KiB
JavaScript
347 lines
10 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._getKey = _getKey;
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exports._getPattern = _getPattern;
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exports.get = get;
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exports.getAllNextSiblings = getAllNextSiblings;
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exports.getAllPrevSiblings = getAllPrevSiblings;
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exports.getAssignmentIdentifiers = getAssignmentIdentifiers;
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exports.getBindingIdentifierPaths = getBindingIdentifierPaths;
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exports.getBindingIdentifiers = getBindingIdentifiers;
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exports.getCompletionRecords = getCompletionRecords;
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exports.getNextSibling = getNextSibling;
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exports.getOpposite = getOpposite;
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exports.getOuterBindingIdentifierPaths = getOuterBindingIdentifierPaths;
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exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;
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exports.getPrevSibling = getPrevSibling;
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exports.getSibling = getSibling;
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var _index = require("./index.js");
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var _t = require("@babel/types");
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const {
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getAssignmentIdentifiers: _getAssignmentIdentifiers,
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getBindingIdentifiers: _getBindingIdentifiers,
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getOuterBindingIdentifiers: _getOuterBindingIdentifiers,
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numericLiteral,
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unaryExpression
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} = _t;
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const NORMAL_COMPLETION = 0;
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const BREAK_COMPLETION = 1;
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function NormalCompletion(path) {
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return {
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type: NORMAL_COMPLETION,
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path
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};
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}
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function BreakCompletion(path) {
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return {
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type: BREAK_COMPLETION,
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path
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};
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}
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function getOpposite() {
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if (this.key === "left") {
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return this.getSibling("right");
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} else if (this.key === "right") {
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return this.getSibling("left");
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}
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return null;
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}
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function addCompletionRecords(path, records, context) {
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if (path) {
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records.push(..._getCompletionRecords(path, context));
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}
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return records;
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}
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function completionRecordForSwitch(cases, records, context) {
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let lastNormalCompletions = [];
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for (let i = 0; i < cases.length; i++) {
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const casePath = cases[i];
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const caseCompletions = _getCompletionRecords(casePath, context);
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const normalCompletions = [];
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const breakCompletions = [];
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for (const c of caseCompletions) {
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if (c.type === NORMAL_COMPLETION) {
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normalCompletions.push(c);
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}
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if (c.type === BREAK_COMPLETION) {
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breakCompletions.push(c);
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}
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}
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if (normalCompletions.length) {
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lastNormalCompletions = normalCompletions;
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}
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records.push(...breakCompletions);
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}
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records.push(...lastNormalCompletions);
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return records;
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}
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function normalCompletionToBreak(completions) {
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completions.forEach(c => {
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c.type = BREAK_COMPLETION;
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});
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}
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function replaceBreakStatementInBreakCompletion(completions, reachable) {
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completions.forEach(c => {
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if (c.path.isBreakStatement({
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label: null
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})) {
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if (reachable) {
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c.path.replaceWith(unaryExpression("void", numericLiteral(0)));
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} else {
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c.path.remove();
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}
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}
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});
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}
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function getStatementListCompletion(paths, context) {
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const completions = [];
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if (context.canHaveBreak) {
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let lastNormalCompletions = [];
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for (let i = 0; i < paths.length; i++) {
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const path = paths[i];
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const newContext = Object.assign({}, context, {
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inCaseClause: false
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});
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if (path.isBlockStatement() && (context.inCaseClause || context.shouldPopulateBreak)) {
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newContext.shouldPopulateBreak = true;
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} else {
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newContext.shouldPopulateBreak = false;
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}
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const statementCompletions = _getCompletionRecords(path, newContext);
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if (statementCompletions.length > 0 && statementCompletions.every(c => c.type === BREAK_COMPLETION)) {
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if (lastNormalCompletions.length > 0 && statementCompletions.every(c => c.path.isBreakStatement({
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label: null
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}))) {
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normalCompletionToBreak(lastNormalCompletions);
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completions.push(...lastNormalCompletions);
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if (lastNormalCompletions.some(c => c.path.isDeclaration())) {
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completions.push(...statementCompletions);
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if (!context.shouldPreserveBreak) {
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replaceBreakStatementInBreakCompletion(statementCompletions, true);
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}
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}
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if (!context.shouldPreserveBreak) {
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replaceBreakStatementInBreakCompletion(statementCompletions, false);
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}
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} else {
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completions.push(...statementCompletions);
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if (!context.shouldPopulateBreak && !context.shouldPreserveBreak) {
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replaceBreakStatementInBreakCompletion(statementCompletions, true);
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}
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}
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break;
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}
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if (i === paths.length - 1) {
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completions.push(...statementCompletions);
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} else {
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lastNormalCompletions = [];
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for (let i = 0; i < statementCompletions.length; i++) {
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const c = statementCompletions[i];
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if (c.type === BREAK_COMPLETION) {
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completions.push(c);
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}
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if (c.type === NORMAL_COMPLETION) {
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lastNormalCompletions.push(c);
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}
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}
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}
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}
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} else if (paths.length) {
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for (let i = paths.length - 1; i >= 0; i--) {
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const pathCompletions = _getCompletionRecords(paths[i], context);
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if (pathCompletions.length > 1 || pathCompletions.length === 1 && !pathCompletions[0].path.isVariableDeclaration() && !pathCompletions[0].path.isEmptyStatement()) {
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completions.push(...pathCompletions);
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break;
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}
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}
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}
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return completions;
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}
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function _getCompletionRecords(path, context) {
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let records = [];
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if (path.isIfStatement()) {
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records = addCompletionRecords(path.get("consequent"), records, context);
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records = addCompletionRecords(path.get("alternate"), records, context);
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} else if (path.isDoExpression() || path.isFor() || path.isWhile() || path.isLabeledStatement()) {
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return addCompletionRecords(path.get("body"), records, context);
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} else if (path.isProgram() || path.isBlockStatement()) {
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return getStatementListCompletion(path.get("body"), context);
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} else if (path.isFunction()) {
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return _getCompletionRecords(path.get("body"), context);
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} else if (path.isTryStatement()) {
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records = addCompletionRecords(path.get("block"), records, context);
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records = addCompletionRecords(path.get("handler"), records, context);
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} else if (path.isCatchClause()) {
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return addCompletionRecords(path.get("body"), records, context);
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} else if (path.isSwitchStatement()) {
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return completionRecordForSwitch(path.get("cases"), records, context);
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} else if (path.isSwitchCase()) {
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return getStatementListCompletion(path.get("consequent"), {
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canHaveBreak: true,
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shouldPopulateBreak: false,
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inCaseClause: true,
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shouldPreserveBreak: context.shouldPreserveBreak
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});
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} else if (path.isBreakStatement()) {
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records.push(BreakCompletion(path));
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} else {
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records.push(NormalCompletion(path));
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}
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return records;
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}
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function getCompletionRecords(shouldPreserveBreak = false) {
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const records = _getCompletionRecords(this, {
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canHaveBreak: false,
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shouldPopulateBreak: false,
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inCaseClause: false,
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shouldPreserveBreak
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});
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return records.map(r => r.path);
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}
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function getSibling(key) {
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return _index.default.get({
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parentPath: this.parentPath,
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parent: this.parent,
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container: this.container,
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listKey: this.listKey,
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key: key
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}).setContext(this.context);
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}
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function getPrevSibling() {
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return this.getSibling(this.key - 1);
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}
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function getNextSibling() {
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return this.getSibling(this.key + 1);
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}
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function getAllNextSiblings() {
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let _key = this.key;
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let sibling = this.getSibling(++_key);
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const siblings = [];
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while (sibling.node) {
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siblings.push(sibling);
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sibling = this.getSibling(++_key);
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}
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return siblings;
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}
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function getAllPrevSiblings() {
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let _key = this.key;
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let sibling = this.getSibling(--_key);
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const siblings = [];
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while (sibling.node) {
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siblings.push(sibling);
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sibling = this.getSibling(--_key);
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}
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return siblings;
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}
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function get(key, context = true) {
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if (context === true) context = this.context;
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const parts = key.split(".");
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if (parts.length === 1) {
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return _getKey.call(this, key, context);
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} else {
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return _getPattern.call(this, parts, context);
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}
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}
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function _getKey(key, context) {
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const node = this.node;
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const container = node[key];
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if (Array.isArray(container)) {
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return container.map((_, i) => {
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return _index.default.get({
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listKey: key,
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parentPath: this,
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parent: node,
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container: container,
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key: i
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}).setContext(context);
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});
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} else {
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return _index.default.get({
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parentPath: this,
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parent: node,
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container: node,
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key: key
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}).setContext(context);
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}
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}
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function _getPattern(parts, context) {
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let path = this;
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for (const part of parts) {
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if (part === ".") {
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path = path.parentPath;
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} else {
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if (Array.isArray(path)) {
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path = path[part];
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} else {
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path = path.get(part, context);
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}
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}
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}
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return path;
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}
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function getAssignmentIdentifiers() {
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return _getAssignmentIdentifiers(this.node);
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}
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function getBindingIdentifiers(duplicates) {
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return _getBindingIdentifiers(this.node, duplicates);
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}
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function getOuterBindingIdentifiers(duplicates) {
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return _getOuterBindingIdentifiers(this.node, duplicates);
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}
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function getBindingIdentifierPaths(duplicates = false, outerOnly = false) {
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const path = this;
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const search = [path];
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const ids = Object.create(null);
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while (search.length) {
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const id = search.shift();
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if (!id) continue;
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if (!id.node) continue;
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const keys = _getBindingIdentifiers.keys[id.node.type];
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if (id.isIdentifier()) {
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if (duplicates) {
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const _ids = ids[id.node.name] = ids[id.node.name] || [];
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_ids.push(id);
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} else {
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ids[id.node.name] = id;
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}
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continue;
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}
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if (id.isExportDeclaration()) {
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const declaration = id.get("declaration");
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if (declaration.isDeclaration()) {
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search.push(declaration);
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}
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continue;
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}
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if (outerOnly) {
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if (id.isFunctionDeclaration()) {
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search.push(id.get("id"));
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continue;
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}
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if (id.isFunctionExpression()) {
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continue;
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}
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}
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if (keys) {
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for (let i = 0; i < keys.length; i++) {
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const key = keys[i];
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const child = id.get(key);
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if (Array.isArray(child)) {
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search.push(...child);
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} else if (child.node) {
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search.push(child);
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}
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}
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}
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}
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return ids;
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}
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function getOuterBindingIdentifierPaths(duplicates = false) {
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return this.getBindingIdentifierPaths(duplicates, true);
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}
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//# sourceMappingURL=family.js.map
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