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							540 lines
						
					
					
						
							12 KiB
						
					
					
				
			
		
		
	
	
							540 lines
						
					
					
						
							12 KiB
						
					
					
				"use strict"; | 
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 | 
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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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 | 
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var _buffer = require("./buffer"); | 
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 | 
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var n = require("./node"); | 
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 | 
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var _t = require("@babel/types"); | 
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 | 
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var generatorFunctions = require("./generators"); | 
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 | 
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const { | 
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  isProgram, | 
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  isFile, | 
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  isEmptyStatement | 
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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 { | 
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  needsParens, | 
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  needsWhitespaceAfter, | 
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  needsWhitespaceBefore | 
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} = n; | 
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 | 
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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._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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 | 
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  generate(ast) { | 
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    this.print(ast); | 
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 | 
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    this._maybeAddAuxComment(); | 
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 | 
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    return this._buf.get(); | 
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  } | 
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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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 | 
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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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 | 
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  semicolon(force = false) { | 
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    this._maybeAddAuxComment(); | 
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 | 
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    this._append(";", !force); | 
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  } | 
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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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 | 
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    this.token("}"); | 
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  } | 
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 | 
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  space(force = false) { | 
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    if (this.format.compact) return; | 
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 | 
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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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 | 
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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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 | 
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  word(str) { | 
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    if (this._endsWithWord || this.endsWith(47) && str.charCodeAt(0) === 47) { | 
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      this._space(); | 
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    } | 
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 | 
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    this._maybeAddAuxComment(); | 
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 | 
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    this._append(str); | 
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 | 
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    this._endsWithWord = true; | 
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  } | 
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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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 | 
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  token(str) { | 
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    const lastChar = this.getLastChar(); | 
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    const strFirst = str.charCodeAt(0); | 
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 | 
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    if (str === "--" && lastChar === 33 || 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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 | 
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    this._maybeAddAuxComment(); | 
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 | 
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    this._append(str); | 
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  } | 
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 | 
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  newline(i = 1) { | 
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    if (this.format.retainLines || this.format.compact) return; | 
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 | 
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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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    const charBeforeNewline = this.endsWithCharAndNewline(); | 
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    if (charBeforeNewline === 10) return; | 
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 | 
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    if (charBeforeNewline === 123 || charBeforeNewline === 58) { | 
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      i--; | 
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    } | 
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 | 
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    if (i <= 0) return; | 
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 | 
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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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 | 
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  endsWith(char) { | 
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    return this.getLastChar() === char; | 
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  } | 
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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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 | 
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  endsWithCharAndNewline() { | 
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    return this._buf.endsWithCharAndNewline(); | 
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  } | 
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 | 
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  removeTrailingNewline() { | 
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    this._buf.removeTrailingNewline(); | 
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  } | 
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 | 
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  exactSource(loc, cb) { | 
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    this._catchUp("start", loc); | 
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 | 
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    this._buf.exactSource(loc, cb); | 
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  } | 
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 | 
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  source(prop, loc) { | 
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    this._catchUp(prop, loc); | 
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 | 
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    this._buf.source(prop, loc); | 
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  } | 
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 | 
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  withSource(prop, loc, cb) { | 
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    this._catchUp(prop, loc); | 
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 | 
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    this._buf.withSource(prop, loc, cb); | 
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  } | 
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 | 
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  _space() { | 
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    this._append(" ", true); | 
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  } | 
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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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 | 
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  _append(str, queue = false) { | 
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    this._maybeAddParen(str); | 
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 | 
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    this._maybeIndent(str); | 
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 | 
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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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 | 
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  _maybeIndent(str) { | 
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    if (this._indent && this.endsWith(10) && str.charCodeAt(0) !== 10) { | 
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      this._buf.queue(this._getIndent()); | 
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    } | 
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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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    let i; | 
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 | 
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    for (i = 0; i < str.length && str[i] === " "; i++) continue; | 
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 | 
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    if (i === str.length) { | 
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      return; | 
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    } | 
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 | 
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    const cha = str[i]; | 
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 | 
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    if (cha !== "\n") { | 
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      if (cha !== "/" || i + 1 === str.length) { | 
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        this._parenPushNewlineState = null; | 
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        return; | 
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      } | 
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 | 
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      const chaPost = str[i + 1]; | 
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 | 
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      if (chaPost === "*") { | 
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        if (PURE_ANNOTATION_RE.test(str.slice(i + 2, str.length - 2))) { | 
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          return; | 
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        } | 
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      } else if (chaPost !== "/") { | 
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        this._parenPushNewlineState = null; | 
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        return; | 
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      } | 
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    } | 
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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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 | 
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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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 | 
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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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 | 
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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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 | 
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  _getIndent() { | 
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    return this.format.indent.style.repeat(this._indent); | 
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  } | 
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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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 | 
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  endTerminatorless(state) { | 
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    this._noLineTerminator = false; | 
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 | 
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    if (state != null && 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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 | 
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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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 | 
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    if (node._compact) { | 
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      this.format.concise = true; | 
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    } | 
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 | 
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    const printMethod = this[node.type]; | 
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 | 
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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 == null ? void 0 : node.constructor.name)}`); | 
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    } | 
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 | 
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    this._printStack.push(node); | 
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 | 
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    const oldInAux = this._insideAux; | 
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    this._insideAux = !node.loc; | 
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 | 
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    this._maybeAddAuxComment(this._insideAux && !oldInAux); | 
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 | 
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    let shouldPrintParens = needsParens(node, parent, this._printStack); | 
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 | 
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    if (this.format.retainFunctionParens && node.type === "FunctionExpression" && node.extra && node.extra.parenthesized) { | 
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      shouldPrintParens = true; | 
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    } | 
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 | 
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    if (shouldPrintParens) this.token("("); | 
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 | 
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    this._printLeadingComments(node); | 
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 | 
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    const loc = isProgram(node) || 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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 | 
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    this._printTrailingComments(node); | 
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 | 
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    if (shouldPrintParens) this.token(")"); | 
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 | 
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    this._printStack.pop(); | 
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 | 
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    this.format.concise = oldConcise; | 
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    this._insideAux = oldInAux; | 
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  } | 
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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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 | 
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  _printAuxBeforeComment() { | 
						|
    if (this._printAuxAfterOnNextUserNode) return; | 
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    this._printAuxAfterOnNextUserNode = true; | 
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    const comment = this.format.auxiliaryCommentBefore; | 
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 | 
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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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 | 
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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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 | 
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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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 | 
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  getPossibleRaw(node) { | 
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    const extra = node.extra; | 
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 | 
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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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 | 
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  printJoin(nodes, parent, opts = {}) { | 
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    if (!(nodes != null && nodes.length)) return; | 
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    if (opts.indent) this.indent(); | 
						|
    const newlineOpts = { | 
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      addNewlines: opts.addNewlines | 
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    }; | 
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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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 | 
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      if (opts.iterator) { | 
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        opts.iterator(node, i); | 
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      } | 
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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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 | 
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      if (opts.statement) this._printNewline(false, node, parent, newlineOpts); | 
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    } | 
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 | 
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    if (opts.indent) this.dedent(); | 
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  } | 
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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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 | 
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  printBlock(parent) { | 
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    const node = parent.body; | 
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 | 
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    if (!isEmptyStatement(node)) { | 
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      this.space(); | 
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    } | 
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 | 
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    this.print(node, parent); | 
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  } | 
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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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 | 
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  _printLeadingComments(node) { | 
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    this._printComments(this._getComments(true, node), true); | 
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  } | 
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 | 
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  printInnerComments(node, indent = true) { | 
						|
    var _node$innerComments; | 
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 | 
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    if (!((_node$innerComments = node.innerComments) != null && _node$innerComments.length)) return; | 
						|
    if (indent) this.indent(); | 
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 | 
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    this._printComments(node.innerComments); | 
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 | 
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    if (indent) this.dedent(); | 
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  } | 
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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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 | 
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  printList(items, parent, opts = {}) { | 
						|
    if (opts.separator == null) { | 
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      opts.separator = commaSeparator; | 
						|
    } | 
						|
 | 
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    return this.printJoin(items, parent, opts); | 
						|
  } | 
						|
 | 
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  _printNewline(leading, node, parent, opts) { | 
						|
    if (this.format.retainLines || this.format.compact) return; | 
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 | 
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    if (this.format.concise) { | 
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      this.space(); | 
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      return; | 
						|
    } | 
						|
 | 
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    let lines = 0; | 
						|
 | 
						|
    if (this._buf.hasContent()) { | 
						|
      if (!leading) lines++; | 
						|
      if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0; | 
						|
      const needs = leading ? needsWhitespaceBefore : needsWhitespaceAfter; | 
						|
      if (needs(node, parent)) lines++; | 
						|
    } | 
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 | 
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    this.newline(Math.min(2, lines)); | 
						|
  } | 
						|
 | 
						|
  _getComments(leading, node) { | 
						|
    return node && (leading ? node.leadingComments : node.trailingComments) || []; | 
						|
  } | 
						|
 | 
						|
  _printComment(comment, skipNewLines) { | 
						|
    if (!this.format.shouldPrintComment(comment.value)) return; | 
						|
    if (comment.ignore) return; | 
						|
    if (this._printedComments.has(comment)) return; | 
						|
 | 
						|
    this._printedComments.add(comment); | 
						|
 | 
						|
    const isBlockComment = comment.type === "CommentBlock"; | 
						|
    const printNewLines = isBlockComment && !skipNewLines && !this._noLineTerminator; | 
						|
    if (printNewLines && this._buf.hasContent()) this.newline(1); | 
						|
    const lastCharCode = this.getLastChar(); | 
						|
 | 
						|
    if (lastCharCode !== 91 && lastCharCode !== 123) { | 
						|
      this.space(); | 
						|
    } | 
						|
 | 
						|
    let val = !isBlockComment && !this._noLineTerminator ? `//${comment.value}\n` : `/*${comment.value}*/`; | 
						|
 | 
						|
    if (isBlockComment && this.format.indent.adjustMultilineComment) { | 
						|
      var _comment$loc; | 
						|
 | 
						|
      const offset = (_comment$loc = comment.loc) == null ? void 0 : _comment$loc.start.column; | 
						|
 | 
						|
      if (offset) { | 
						|
        const newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g"); | 
						|
        val = val.replace(newlineRegex, "\n"); | 
						|
      } | 
						|
 | 
						|
      const indentSize = Math.max(this._getIndent().length, this.format.retainLines ? 0 : this._buf.getCurrentColumn()); | 
						|
      val = val.replace(/\n(?!$)/g, `\n${" ".repeat(indentSize)}`); | 
						|
    } | 
						|
 | 
						|
    if (this.endsWith(47)) this._space(); | 
						|
    this.withSource("start", comment.loc, () => { | 
						|
      this._append(val); | 
						|
    }); | 
						|
    if (printNewLines) this.newline(1); | 
						|
  } | 
						|
 | 
						|
  _printComments(comments, inlinePureAnnotation) { | 
						|
    if (!(comments != null && comments.length)) return; | 
						|
 | 
						|
    if (inlinePureAnnotation && comments.length === 1 && PURE_ANNOTATION_RE.test(comments[0].value)) { | 
						|
      this._printComment(comments[0], this._buf.hasContent() && !this.endsWith(10)); | 
						|
    } else { | 
						|
      for (const comment of comments) { | 
						|
        this._printComment(comment); | 
						|
      } | 
						|
    } | 
						|
  } | 
						|
 | 
						|
  printAssertions(node) { | 
						|
    var _node$assertions; | 
						|
 | 
						|
    if ((_node$assertions = node.assertions) != null && _node$assertions.length) { | 
						|
      this.space(); | 
						|
      this.word("assert"); | 
						|
      this.space(); | 
						|
      this.token("{"); | 
						|
      this.space(); | 
						|
      this.printList(node.assertions, node); | 
						|
      this.space(); | 
						|
      this.token("}"); | 
						|
    } | 
						|
  } | 
						|
 | 
						|
} | 
						|
 | 
						|
Object.assign(Printer.prototype, generatorFunctions); | 
						|
{ | 
						|
  Printer.prototype.Noop = function Noop() {}; | 
						|
} | 
						|
var _default = Printer; | 
						|
exports.default = _default; | 
						|
 | 
						|
function commaSeparator() { | 
						|
  this.token(","); | 
						|
  this.space(); | 
						|
} |