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479 lines
12 KiB
479 lines
12 KiB
"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.default = void 0;
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var _isInteger = _interopRequireDefault(require("lodash/isInteger"));
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var _repeat = _interopRequireDefault(require("lodash/repeat"));
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var _buffer = _interopRequireDefault(require("./buffer"));
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var n = _interopRequireWildcard(require("./node"));
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var t = _interopRequireWildcard(require("@babel/types"));
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var generatorFunctions = _interopRequireWildcard(require("./generators"));
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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const SCIENTIFIC_NOTATION = /e/i;
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const ZERO_DECIMAL_INTEGER = /\.0+$/;
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const NON_DECIMAL_LITERAL = /^0[box]/;
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class Printer {
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constructor(format, map) {
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this.inForStatementInitCounter = 0;
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this._printStack = [];
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this._indent = 0;
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this._insideAux = false;
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this._printedCommentStarts = {};
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this._parenPushNewlineState = null;
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this._noLineTerminator = false;
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this._printAuxAfterOnNextUserNode = false;
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this._printedComments = new WeakSet();
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this._endsWithInteger = false;
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this._endsWithWord = false;
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this.format = format || {};
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this._buf = new _buffer.default(map);
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}
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generate(ast) {
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this.print(ast);
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this._maybeAddAuxComment();
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return this._buf.get();
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}
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indent() {
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if (this.format.compact || this.format.concise) return;
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this._indent++;
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}
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dedent() {
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if (this.format.compact || this.format.concise) return;
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this._indent--;
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}
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semicolon(force = false) {
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this._maybeAddAuxComment();
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this._append(";", !force);
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}
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rightBrace() {
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if (this.format.minified) {
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this._buf.removeLastSemicolon();
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}
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this.token("}");
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}
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space(force = false) {
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if (this.format.compact) return;
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if (this._buf.hasContent() && !this.endsWith(" ") && !this.endsWith("\n") || force) {
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this._space();
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}
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}
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word(str) {
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if (this._endsWithWord || this.endsWith("/") && str.indexOf("/") === 0) {
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this._space();
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}
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this._maybeAddAuxComment();
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this._append(str);
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this._endsWithWord = true;
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}
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number(str) {
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this.word(str);
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this._endsWithInteger = (0, _isInteger.default)(+str) && !NON_DECIMAL_LITERAL.test(str) && !SCIENTIFIC_NOTATION.test(str) && !ZERO_DECIMAL_INTEGER.test(str) && str[str.length - 1] !== ".";
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}
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token(str) {
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if (str === "--" && this.endsWith("!") || str[0] === "+" && this.endsWith("+") || str[0] === "-" && this.endsWith("-") || str[0] === "." && this._endsWithInteger) {
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this._space();
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}
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this._maybeAddAuxComment();
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this._append(str);
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}
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newline(i) {
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if (this.format.retainLines || this.format.compact) return;
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if (this.format.concise) {
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this.space();
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return;
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}
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if (this.endsWith("\n\n")) return;
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if (typeof i !== "number") i = 1;
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i = Math.min(2, i);
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if (this.endsWith("{\n") || this.endsWith(":\n")) i--;
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if (i <= 0) return;
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for (let j = 0; j < i; j++) {
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this._newline();
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}
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}
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endsWith(str) {
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return this._buf.endsWith(str);
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}
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removeTrailingNewline() {
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this._buf.removeTrailingNewline();
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}
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exactSource(loc, cb) {
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this._catchUp("start", loc);
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this._buf.exactSource(loc, cb);
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}
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source(prop, loc) {
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this._catchUp(prop, loc);
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this._buf.source(prop, loc);
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}
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withSource(prop, loc, cb) {
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this._catchUp(prop, loc);
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this._buf.withSource(prop, loc, cb);
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}
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_space() {
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this._append(" ", true);
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}
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_newline() {
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this._append("\n", true);
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}
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_append(str, queue = false) {
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this._maybeAddParen(str);
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this._maybeIndent(str);
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if (queue) this._buf.queue(str);else this._buf.append(str);
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this._endsWithWord = false;
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this._endsWithInteger = false;
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}
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_maybeIndent(str) {
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if (this._indent && this.endsWith("\n") && str[0] !== "\n") {
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this._buf.queue(this._getIndent());
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}
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}
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_maybeAddParen(str) {
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const parenPushNewlineState = this._parenPushNewlineState;
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if (!parenPushNewlineState) return;
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this._parenPushNewlineState = null;
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let i;
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for (i = 0; i < str.length && str[i] === " "; i++) continue;
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if (i === str.length) return;
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const cha = str[i];
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if (cha !== "\n") {
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if (cha !== "/") return;
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if (i + 1 === str.length) return;
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const chaPost = str[i + 1];
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if (chaPost !== "/" && chaPost !== "*") return;
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}
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this.token("(");
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this.indent();
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parenPushNewlineState.printed = true;
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}
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_catchUp(prop, loc) {
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if (!this.format.retainLines) return;
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const pos = loc ? loc[prop] : null;
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if (pos && pos.line !== null) {
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const count = pos.line - this._buf.getCurrentLine();
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for (let i = 0; i < count; i++) {
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this._newline();
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}
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}
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}
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_getIndent() {
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return (0, _repeat.default)(this.format.indent.style, this._indent);
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}
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startTerminatorless(isLabel = false) {
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if (isLabel) {
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this._noLineTerminator = true;
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return null;
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} else {
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return this._parenPushNewlineState = {
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printed: false
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};
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}
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}
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endTerminatorless(state) {
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this._noLineTerminator = false;
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if (state && state.printed) {
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this.dedent();
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this.newline();
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this.token(")");
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}
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}
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print(node, parent) {
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if (!node) return;
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const oldConcise = this.format.concise;
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if (node._compact) {
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this.format.concise = true;
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}
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const printMethod = this[node.type];
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if (!printMethod) {
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throw new ReferenceError(`unknown node of type ${JSON.stringify(node.type)} with constructor ${JSON.stringify(node && node.constructor.name)}`);
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}
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this._printStack.push(node);
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const oldInAux = this._insideAux;
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this._insideAux = !node.loc;
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this._maybeAddAuxComment(this._insideAux && !oldInAux);
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let needsParens = n.needsParens(node, parent, this._printStack);
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if (this.format.retainFunctionParens && node.type === "FunctionExpression" && node.extra && node.extra.parenthesized) {
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needsParens = true;
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}
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if (needsParens) this.token("(");
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this._printLeadingComments(node);
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const loc = t.isProgram(node) || t.isFile(node) ? null : node.loc;
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this.withSource("start", loc, () => {
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printMethod.call(this, node, parent);
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});
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this._printTrailingComments(node);
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if (needsParens) this.token(")");
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this._printStack.pop();
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this.format.concise = oldConcise;
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this._insideAux = oldInAux;
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}
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_maybeAddAuxComment(enteredPositionlessNode) {
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if (enteredPositionlessNode) this._printAuxBeforeComment();
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if (!this._insideAux) this._printAuxAfterComment();
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}
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_printAuxBeforeComment() {
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if (this._printAuxAfterOnNextUserNode) return;
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this._printAuxAfterOnNextUserNode = true;
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const comment = this.format.auxiliaryCommentBefore;
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if (comment) {
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this._printComment({
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type: "CommentBlock",
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value: comment
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});
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}
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}
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_printAuxAfterComment() {
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if (!this._printAuxAfterOnNextUserNode) return;
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this._printAuxAfterOnNextUserNode = false;
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const comment = this.format.auxiliaryCommentAfter;
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if (comment) {
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this._printComment({
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type: "CommentBlock",
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value: comment
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});
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}
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}
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getPossibleRaw(node) {
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const extra = node.extra;
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if (extra && extra.raw != null && extra.rawValue != null && node.value === extra.rawValue) {
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return extra.raw;
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}
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}
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printJoin(nodes, parent, opts = {}) {
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if (!nodes || !nodes.length) return;
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if (opts.indent) this.indent();
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const newlineOpts = {
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addNewlines: opts.addNewlines
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};
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for (let i = 0; i < nodes.length; i++) {
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const node = nodes[i];
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if (!node) continue;
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if (opts.statement) this._printNewline(true, node, parent, newlineOpts);
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this.print(node, parent);
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if (opts.iterator) {
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opts.iterator(node, i);
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}
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if (opts.separator && i < nodes.length - 1) {
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opts.separator.call(this);
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}
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if (opts.statement) this._printNewline(false, node, parent, newlineOpts);
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}
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if (opts.indent) this.dedent();
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}
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printAndIndentOnComments(node, parent) {
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const indent = node.leadingComments && node.leadingComments.length > 0;
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if (indent) this.indent();
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this.print(node, parent);
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if (indent) this.dedent();
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}
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printBlock(parent) {
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const node = parent.body;
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if (!t.isEmptyStatement(node)) {
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this.space();
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}
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this.print(node, parent);
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}
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_printTrailingComments(node) {
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this._printComments(this._getComments(false, node));
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}
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_printLeadingComments(node) {
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this._printComments(this._getComments(true, node));
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}
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printInnerComments(node, indent = true) {
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if (!node.innerComments || !node.innerComments.length) return;
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if (indent) this.indent();
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this._printComments(node.innerComments);
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if (indent) this.dedent();
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}
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printSequence(nodes, parent, opts = {}) {
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opts.statement = true;
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return this.printJoin(nodes, parent, opts);
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}
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printList(items, parent, opts = {}) {
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if (opts.separator == null) {
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opts.separator = commaSeparator;
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}
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return this.printJoin(items, parent, opts);
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}
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_printNewline(leading, node, parent, opts) {
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if (this.format.retainLines || this.format.compact) return;
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if (this.format.concise) {
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this.space();
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return;
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}
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let lines = 0;
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if (this._buf.hasContent()) {
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if (!leading) lines++;
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if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0;
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const needs = leading ? n.needsWhitespaceBefore : n.needsWhitespaceAfter;
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if (needs(node, parent)) lines++;
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}
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this.newline(lines);
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}
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_getComments(leading, node) {
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return node && (leading ? node.leadingComments : node.trailingComments) || [];
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}
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_printComment(comment) {
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if (!this.format.shouldPrintComment(comment.value)) return;
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if (comment.ignore) return;
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if (this._printedComments.has(comment)) return;
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this._printedComments.add(comment);
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if (comment.start != null) {
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if (this._printedCommentStarts[comment.start]) return;
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this._printedCommentStarts[comment.start] = true;
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}
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const isBlockComment = comment.type === "CommentBlock";
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this.newline(this._buf.hasContent() && !this._noLineTerminator && isBlockComment ? 1 : 0);
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if (!this.endsWith("[") && !this.endsWith("{")) this.space();
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let val = !isBlockComment && !this._noLineTerminator ? `//${comment.value}\n` : `/*${comment.value}*/`;
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if (isBlockComment && this.format.indent.adjustMultilineComment) {
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const offset = comment.loc && comment.loc.start.column;
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if (offset) {
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const newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g");
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val = val.replace(newlineRegex, "\n");
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}
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const indentSize = Math.max(this._getIndent().length, this._buf.getCurrentColumn());
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val = val.replace(/\n(?!$)/g, `\n${(0, _repeat.default)(" ", indentSize)}`);
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}
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if (this.endsWith("/")) this._space();
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this.withSource("start", comment.loc, () => {
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this._append(val);
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});
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this.newline(isBlockComment && !this._noLineTerminator ? 1 : 0);
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}
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_printComments(comments) {
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if (!comments || !comments.length) return;
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for (const comment of comments) {
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this._printComment(comment);
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}
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}
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}
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exports.default = Printer;
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Object.assign(Printer.prototype, generatorFunctions);
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function commaSeparator() {
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this.token(",");
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this.space();
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}
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