"use strict";
|
|
Object.defineProperty(exports, "__esModule", {
|
value: true
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});
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exports.default = void 0;
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var _buffer = require("./buffer");
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var n = require("./node");
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var _t = require("@babel/types");
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var generatorFunctions = require("./generators");
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const {
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isFunction,
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isStatement,
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isClassBody,
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isTSInterfaceBody,
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isTSEnumDeclaration
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} = _t;
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const SCIENTIFIC_NOTATION = /e/i;
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const ZERO_DECIMAL_INTEGER = /\.0+$/;
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const NON_DECIMAL_LITERAL = /^0[box]/;
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const PURE_ANNOTATION_RE = /^\s*[@#]__PURE__\s*$/;
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const HAS_NEWLINE = /[\n\r\u2028\u2029]/;
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const HAS_BlOCK_COMMENT_END = /\*\//;
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const {
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needsParens
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} = n;
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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._indentChar = 0;
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this._indentRepeat = 0;
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this._insideAux = false;
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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 Set();
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this._endsWithInteger = false;
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this._endsWithWord = false;
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this._lastCommentLine = 0;
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this._endsWithInnerRaw = false;
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this._indentInnerComments = true;
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this.format = format;
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this._buf = new _buffer.default(map);
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this._indentChar = format.indent.style.charCodeAt(0);
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this._indentRepeat = format.indent.style.length;
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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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if (force) {
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this._appendChar(59);
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} else {
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this._queue(59);
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}
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this._noLineTerminator = false;
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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.tokenChar(125);
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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 (force) {
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this._space();
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} else if (this._buf.hasContent()) {
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const lastCp = this.getLastChar();
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if (lastCp !== 32 && lastCp !== 10) {
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this._space();
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}
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}
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}
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word(str, noLineTerminatorAfter = false) {
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this._maybePrintInnerComments();
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if (this._endsWithWord || str.charCodeAt(0) === 47 && this.endsWith(47)) {
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this._space();
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}
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this._maybeAddAuxComment();
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this._append(str, false);
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this._endsWithWord = true;
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this._noLineTerminator = noLineTerminatorAfter;
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}
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number(str) {
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this.word(str);
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this._endsWithInteger = Number.isInteger(+str) && !NON_DECIMAL_LITERAL.test(str) && !SCIENTIFIC_NOTATION.test(str) && !ZERO_DECIMAL_INTEGER.test(str) && str.charCodeAt(str.length - 1) !== 46;
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}
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token(str, maybeNewline = false) {
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this._maybePrintInnerComments();
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const lastChar = this.getLastChar();
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const strFirst = str.charCodeAt(0);
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if (lastChar === 33 && str === "--" || strFirst === 43 && lastChar === 43 || strFirst === 45 && lastChar === 45 || strFirst === 46 && 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, maybeNewline);
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this._noLineTerminator = false;
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}
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tokenChar(char) {
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this._maybePrintInnerComments();
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const lastChar = this.getLastChar();
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if (char === 43 && lastChar === 43 || char === 45 && lastChar === 45 || char === 46 && this._endsWithInteger) {
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this._space();
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}
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this._maybeAddAuxComment();
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this._appendChar(char);
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this._noLineTerminator = false;
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}
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newline(i = 1, force) {
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if (i <= 0) return;
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if (!force) {
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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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}
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if (i > 2) i = 2;
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i -= this._buf.getNewlineCount();
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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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return;
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}
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endsWith(char) {
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return this.getLastChar() === char;
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}
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getLastChar() {
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return this._buf.getLastChar();
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}
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endsWithCharAndNewline() {
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return this._buf.endsWithCharAndNewline();
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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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if (!loc) return 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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if (!loc) return;
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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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sourceWithOffset(prop, loc, lineOffset, columnOffset) {
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if (!loc) return;
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this._catchUp(prop, loc);
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this._buf.sourceWithOffset(prop, loc, lineOffset, columnOffset);
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}
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withSource(prop, loc, cb) {
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if (!loc) return 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._queue(32);
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}
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_newline() {
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this._queue(10);
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}
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_append(str, maybeNewline) {
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this._maybeAddParen(str);
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this._maybeIndent(str.charCodeAt(0));
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this._buf.append(str, maybeNewline);
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this._endsWithWord = false;
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this._endsWithInteger = false;
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}
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_appendChar(char) {
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this._maybeAddParenChar(char);
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this._maybeIndent(char);
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this._buf.appendChar(char);
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this._endsWithWord = false;
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this._endsWithInteger = false;
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}
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_queue(char) {
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this._maybeAddParenChar(char);
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this._maybeIndent(char);
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this._buf.queue(char);
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this._endsWithWord = false;
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this._endsWithInteger = false;
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}
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_maybeIndent(firstChar) {
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if (this._indent && firstChar !== 10 && this.endsWith(10)) {
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this._buf.queueIndentation(this._indentChar, this._getIndent());
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}
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}
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_shouldIndent(firstChar) {
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if (this._indent && firstChar !== 10 && this.endsWith(10)) {
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return true;
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}
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}
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_maybeAddParenChar(char) {
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const parenPushNewlineState = this._parenPushNewlineState;
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if (!parenPushNewlineState) return;
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if (char === 32) {
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return;
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}
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if (char !== 10) {
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this._parenPushNewlineState = null;
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return;
|
}
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this.tokenChar(40);
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this.indent();
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parenPushNewlineState.printed = true;
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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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const len = str.length;
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let i;
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for (i = 0; i < len && str.charCodeAt(i) === 32; i++) continue;
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if (i === len) {
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return;
|
}
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const cha = str.charCodeAt(i);
|
if (cha !== 10) {
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if (cha !== 47 || i + 1 === len) {
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this._parenPushNewlineState = null;
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return;
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}
|
const chaPost = str.charCodeAt(i + 1);
|
if (chaPost === 42) {
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if (PURE_ANNOTATION_RE.test(str.slice(i + 2, len - 2))) {
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return;
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}
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} else if (chaPost !== 47) {
|
this._parenPushNewlineState = null;
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return;
|
}
|
}
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this.tokenChar(40);
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this.indent();
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parenPushNewlineState.printed = true;
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}
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catchUp(line) {
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if (!this.format.retainLines) return;
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const count = 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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_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 == null ? void 0 : 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 this._indentRepeat * this._indent;
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}
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printTerminatorless(node, parent, isLabel) {
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if (isLabel) {
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this._noLineTerminator = true;
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this.print(node, parent);
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} else {
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const terminatorState = {
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printed: false
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};
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this._parenPushNewlineState = terminatorState;
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this.print(node, parent);
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if (terminatorState.printed) {
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this.dedent();
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this.newline();
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this.tokenChar(41);
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}
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}
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}
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print(node, parent, noLineTerminatorAfter, trailingCommentsLineOffset, forceParens) {
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if (!node) return;
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this._endsWithInnerRaw = false;
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const nodeType = node.type;
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const format = this.format;
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const oldConcise = format.concise;
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if (node._compact) {
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format.concise = true;
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}
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const printMethod = this[nodeType];
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if (printMethod === undefined) {
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throw new ReferenceError(`unknown node of type ${JSON.stringify(nodeType)} with constructor ${JSON.stringify(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 == undefined;
|
this._maybeAddAuxComment(this._insideAux && !oldInAux);
|
let shouldPrintParens = false;
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if (forceParens) {
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shouldPrintParens = true;
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} else if (format.retainFunctionParens && nodeType === "FunctionExpression" && node.extra && node.extra.parenthesized) {
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shouldPrintParens = true;
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} else {
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shouldPrintParens = needsParens(node, parent, this._printStack);
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}
|
if (shouldPrintParens) {
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this.tokenChar(40);
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this._endsWithInnerRaw = false;
|
}
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this._lastCommentLine = 0;
|
this._printLeadingComments(node, parent);
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const loc = nodeType === "Program" || nodeType === "File" ? null : node.loc;
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this.exactSource(loc, printMethod.bind(this, node, parent));
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if (shouldPrintParens) {
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this._printTrailingComments(node, parent);
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this.tokenChar(41);
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this._noLineTerminator = noLineTerminatorAfter;
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} else if (noLineTerminatorAfter && !this._noLineTerminator) {
|
this._noLineTerminator = true;
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this._printTrailingComments(node, parent);
|
} else {
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this._printTrailingComments(node, parent, trailingCommentsLineOffset);
|
}
|
this._printStack.pop();
|
format.concise = oldConcise;
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this._insideAux = oldInAux;
|
this._endsWithInnerRaw = false;
|
}
|
_maybeAddAuxComment(enteredPositionlessNode) {
|
if (enteredPositionlessNode) this._printAuxBeforeComment();
|
if (!this._insideAux) this._printAuxAfterComment();
|
}
|
_printAuxBeforeComment() {
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if (this._printAuxAfterOnNextUserNode) return;
|
this._printAuxAfterOnNextUserNode = true;
|
const comment = this.format.auxiliaryCommentBefore;
|
if (comment) {
|
this._printComment({
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type: "CommentBlock",
|
value: comment
|
}, 0);
|
}
|
}
|
_printAuxAfterComment() {
|
if (!this._printAuxAfterOnNextUserNode) return;
|
this._printAuxAfterOnNextUserNode = false;
|
const comment = this.format.auxiliaryCommentAfter;
|
if (comment) {
|
this._printComment({
|
type: "CommentBlock",
|
value: comment
|
}, 0);
|
}
|
}
|
getPossibleRaw(node) {
|
const extra = node.extra;
|
if (extra && extra.raw != null && extra.rawValue != null && node.value === extra.rawValue) {
|
return extra.raw;
|
}
|
}
|
printJoin(nodes, parent, opts = {}) {
|
if (!(nodes != null && nodes.length)) return;
|
if (opts.indent) this.indent();
|
const newlineOpts = {
|
addNewlines: opts.addNewlines,
|
nextNodeStartLine: 0
|
};
|
const separator = opts.separator ? opts.separator.bind(this) : null;
|
const len = nodes.length;
|
for (let i = 0; i < len; i++) {
|
const node = nodes[i];
|
if (!node) continue;
|
if (opts.statement) this._printNewline(i === 0, newlineOpts);
|
this.print(node, parent, undefined, opts.trailingCommentsLineOffset || 0);
|
opts.iterator == null ? void 0 : opts.iterator(node, i);
|
if (i < len - 1) separator == null ? void 0 : separator();
|
if (opts.statement) {
|
if (i + 1 === len) {
|
this.newline(1);
|
} else {
|
var _nextNode$loc;
|
const nextNode = nodes[i + 1];
|
newlineOpts.nextNodeStartLine = ((_nextNode$loc = nextNode.loc) == null ? void 0 : _nextNode$loc.start.line) || 0;
|
this._printNewline(true, newlineOpts);
|
}
|
}
|
}
|
if (opts.indent) this.dedent();
|
}
|
printAndIndentOnComments(node, parent) {
|
const indent = node.leadingComments && node.leadingComments.length > 0;
|
if (indent) this.indent();
|
this.print(node, parent);
|
if (indent) this.dedent();
|
}
|
printBlock(parent) {
|
const node = parent.body;
|
if (node.type !== "EmptyStatement") {
|
this.space();
|
}
|
this.print(node, parent);
|
}
|
_printTrailingComments(node, parent, lineOffset) {
|
const {
|
innerComments,
|
trailingComments
|
} = node;
|
if (innerComments != null && innerComments.length) {
|
this._printComments(2, innerComments, node, parent, lineOffset);
|
}
|
if (trailingComments != null && trailingComments.length) {
|
this._printComments(2, trailingComments, node, parent, lineOffset);
|
}
|
}
|
_printLeadingComments(node, parent) {
|
const comments = node.leadingComments;
|
if (!(comments != null && comments.length)) return;
|
this._printComments(0, comments, node, parent);
|
}
|
_maybePrintInnerComments() {
|
if (this._endsWithInnerRaw) this.printInnerComments();
|
this._endsWithInnerRaw = true;
|
this._indentInnerComments = true;
|
}
|
printInnerComments() {
|
const node = this._printStack[this._printStack.length - 1];
|
const comments = node.innerComments;
|
if (!(comments != null && comments.length)) return;
|
const hasSpace = this.endsWith(32);
|
const indent = this._indentInnerComments;
|
const printedCommentsCount = this._printedComments.size;
|
if (indent) this.indent();
|
this._printComments(1, comments, node);
|
if (hasSpace && printedCommentsCount !== this._printedComments.size) {
|
this.space();
|
}
|
if (indent) this.dedent();
|
}
|
noIndentInnerCommentsHere() {
|
this._indentInnerComments = false;
|
}
|
printSequence(nodes, parent, opts = {}) {
|
opts.statement = true;
|
return this.printJoin(nodes, parent, opts);
|
}
|
printList(items, parent, opts = {}) {
|
if (opts.separator == null) {
|
opts.separator = commaSeparator;
|
}
|
return this.printJoin(items, parent, opts);
|
}
|
_printNewline(newLine, opts) {
|
if (this.format.retainLines || this.format.compact) return;
|
if (this.format.concise) {
|
this.space();
|
return;
|
}
|
if (!newLine) {
|
return;
|
}
|
const startLine = opts.nextNodeStartLine;
|
const lastCommentLine = this._lastCommentLine;
|
if (startLine > 0 && lastCommentLine > 0) {
|
const offset = startLine - lastCommentLine;
|
if (offset >= 0) {
|
this.newline(offset || 1);
|
return;
|
}
|
}
|
if (this._buf.hasContent()) {
|
this.newline(1);
|
}
|
}
|
_shouldPrintComment(comment) {
|
if (comment.ignore) return 0;
|
if (this._printedComments.has(comment)) return 0;
|
if (this._noLineTerminator && (HAS_NEWLINE.test(comment.value) || HAS_BlOCK_COMMENT_END.test(comment.value))) {
|
return 2;
|
}
|
this._printedComments.add(comment);
|
if (!this.format.shouldPrintComment(comment.value)) {
|
return 0;
|
}
|
return 1;
|
}
|
_printComment(comment, skipNewLines) {
|
const noLineTerminator = this._noLineTerminator;
|
const isBlockComment = comment.type === "CommentBlock";
|
const printNewLines = isBlockComment && skipNewLines !== 1 && !this._noLineTerminator;
|
if (printNewLines && this._buf.hasContent() && skipNewLines !== 2) {
|
this.newline(1);
|
}
|
const lastCharCode = this.getLastChar();
|
if (lastCharCode !== 91 && lastCharCode !== 123) {
|
this.space();
|
}
|
let val;
|
if (isBlockComment) {
|
val = `/*${comment.value}*/`;
|
if (this.format.indent.adjustMultilineComment) {
|
var _comment$loc;
|
const offset = (_comment$loc = comment.loc) == null ? void 0 : _comment$loc.start.column;
|
if (offset) {
|
const newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g");
|
val = val.replace(newlineRegex, "\n");
|
}
|
let indentSize = this.format.retainLines ? 0 : this._buf.getCurrentColumn();
|
if (this._shouldIndent(47) || this.format.retainLines) {
|
indentSize += this._getIndent();
|
}
|
val = val.replace(/\n(?!$)/g, `\n${" ".repeat(indentSize)}`);
|
}
|
} else if (!noLineTerminator) {
|
val = `//${comment.value}`;
|
} else {
|
val = `/*${comment.value}*/`;
|
}
|
if (this.endsWith(47)) this._space();
|
this.source("start", comment.loc);
|
this._append(val, isBlockComment);
|
if (!isBlockComment && !noLineTerminator) {
|
this.newline(1, true);
|
}
|
if (printNewLines && skipNewLines !== 3) {
|
this.newline(1);
|
}
|
}
|
_printComments(type, comments, node, parent, lineOffset = 0) {
|
const nodeLoc = node.loc;
|
const len = comments.length;
|
let hasLoc = !!nodeLoc;
|
const nodeStartLine = hasLoc ? nodeLoc.start.line : 0;
|
const nodeEndLine = hasLoc ? nodeLoc.end.line : 0;
|
let lastLine = 0;
|
let leadingCommentNewline = 0;
|
const maybeNewline = this._noLineTerminator ? function () {} : this.newline.bind(this);
|
for (let i = 0; i < len; i++) {
|
const comment = comments[i];
|
const shouldPrint = this._shouldPrintComment(comment);
|
if (shouldPrint === 2) {
|
hasLoc = false;
|
break;
|
}
|
if (hasLoc && comment.loc && shouldPrint === 1) {
|
const commentStartLine = comment.loc.start.line;
|
const commentEndLine = comment.loc.end.line;
|
if (type === 0) {
|
let offset = 0;
|
if (i === 0) {
|
if (this._buf.hasContent() && (comment.type === "CommentLine" || commentStartLine != commentEndLine)) {
|
offset = leadingCommentNewline = 1;
|
}
|
} else {
|
offset = commentStartLine - lastLine;
|
}
|
lastLine = commentEndLine;
|
maybeNewline(offset);
|
this._printComment(comment, 1);
|
if (i + 1 === len) {
|
maybeNewline(Math.max(nodeStartLine - lastLine, leadingCommentNewline));
|
lastLine = nodeStartLine;
|
}
|
} else if (type === 1) {
|
const offset = commentStartLine - (i === 0 ? nodeStartLine : lastLine);
|
lastLine = commentEndLine;
|
maybeNewline(offset);
|
this._printComment(comment, 1);
|
if (i + 1 === len) {
|
maybeNewline(Math.min(1, nodeEndLine - lastLine));
|
lastLine = nodeEndLine;
|
}
|
} else {
|
const offset = commentStartLine - (i === 0 ? nodeEndLine - lineOffset : lastLine);
|
lastLine = commentEndLine;
|
maybeNewline(offset);
|
this._printComment(comment, 1);
|
}
|
} else {
|
hasLoc = false;
|
if (shouldPrint !== 1) {
|
continue;
|
}
|
if (len === 1) {
|
const singleLine = comment.loc ? comment.loc.start.line === comment.loc.end.line : !HAS_NEWLINE.test(comment.value);
|
const shouldSkipNewline = singleLine && !isStatement(node) && !isClassBody(parent) && !isTSInterfaceBody(parent) && !isTSEnumDeclaration(parent);
|
if (type === 0) {
|
this._printComment(comment, shouldSkipNewline && node.type !== "ObjectExpression" || singleLine && isFunction(parent, {
|
body: node
|
}) ? 1 : 0);
|
} else if (shouldSkipNewline && type === 2) {
|
this._printComment(comment, 1);
|
} else {
|
this._printComment(comment, 0);
|
}
|
} else if (type === 1 && !(node.type === "ObjectExpression" && node.properties.length > 1) && node.type !== "ClassBody" && node.type !== "TSInterfaceBody") {
|
this._printComment(comment, i === 0 ? 2 : i === len - 1 ? 3 : 0);
|
} else {
|
this._printComment(comment, 0);
|
}
|
}
|
}
|
if (type === 2 && hasLoc && lastLine) {
|
this._lastCommentLine = lastLine;
|
}
|
}
|
}
|
Object.assign(Printer.prototype, generatorFunctions);
|
{
|
Printer.prototype.Noop = function Noop() {};
|
}
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var _default = Printer;
|
exports.default = _default;
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function commaSeparator() {
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this.tokenChar(44);
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this.space();
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}
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//# sourceMappingURL=printer.js.map
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