diff options
Diffstat (limited to 'node_modules/babel-generator/lib/printer.js')
| -rw-r--r-- | node_modules/babel-generator/lib/printer.js | 555 |
1 files changed, 555 insertions, 0 deletions
diff --git a/node_modules/babel-generator/lib/printer.js b/node_modules/babel-generator/lib/printer.js new file mode 100644 index 0000000..8eb3edd --- /dev/null +++ b/node_modules/babel-generator/lib/printer.js @@ -0,0 +1,555 @@ +"use strict"; + +exports.__esModule = true; + +var _assign = require("babel-runtime/core-js/object/assign"); + +var _assign2 = _interopRequireDefault(_assign); + +var _getIterator2 = require("babel-runtime/core-js/get-iterator"); + +var _getIterator3 = _interopRequireDefault(_getIterator2); + +var _stringify = require("babel-runtime/core-js/json/stringify"); + +var _stringify2 = _interopRequireDefault(_stringify); + +var _weakSet = require("babel-runtime/core-js/weak-set"); + +var _weakSet2 = _interopRequireDefault(_weakSet); + +var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck"); + +var _classCallCheck3 = _interopRequireDefault(_classCallCheck2); + +var _find = require("lodash/find"); + +var _find2 = _interopRequireDefault(_find); + +var _findLast = require("lodash/findLast"); + +var _findLast2 = _interopRequireDefault(_findLast); + +var _isInteger = require("lodash/isInteger"); + +var _isInteger2 = _interopRequireDefault(_isInteger); + +var _repeat = require("lodash/repeat"); + +var _repeat2 = _interopRequireDefault(_repeat); + +var _buffer = require("./buffer"); + +var _buffer2 = _interopRequireDefault(_buffer); + +var _node = require("./node"); + +var n = _interopRequireWildcard(_node); + +var _whitespace = require("./whitespace"); + +var _whitespace2 = _interopRequireDefault(_whitespace); + +var _babelTypes = require("babel-types"); + +var t = _interopRequireWildcard(_babelTypes); + +function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +var SCIENTIFIC_NOTATION = /e/i; +var ZERO_DECIMAL_INTEGER = /\.0+$/; +var NON_DECIMAL_LITERAL = /^0[box]/; + +var Printer = function () { + function Printer(format, map, tokens) { + (0, _classCallCheck3.default)(this, Printer); + this.inForStatementInitCounter = 0; + this._printStack = []; + this._indent = 0; + this._insideAux = false; + this._printedCommentStarts = {}; + this._parenPushNewlineState = null; + this._printAuxAfterOnNextUserNode = false; + this._printedComments = new _weakSet2.default(); + this._endsWithInteger = false; + this._endsWithWord = false; + + this.format = format || {}; + this._buf = new _buffer2.default(map); + this._whitespace = tokens.length > 0 ? new _whitespace2.default(tokens) : null; + } + + Printer.prototype.generate = function generate(ast) { + this.print(ast); + this._maybeAddAuxComment(); + + return this._buf.get(); + }; + + Printer.prototype.indent = function indent() { + if (this.format.compact || this.format.concise) return; + + this._indent++; + }; + + Printer.prototype.dedent = function dedent() { + if (this.format.compact || this.format.concise) return; + + this._indent--; + }; + + Printer.prototype.semicolon = function semicolon() { + var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false; + + this._maybeAddAuxComment(); + this._append(";", !force); + }; + + Printer.prototype.rightBrace = function rightBrace() { + if (this.format.minified) { + this._buf.removeLastSemicolon(); + } + this.token("}"); + }; + + Printer.prototype.space = function space() { + var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false; + + if (this.format.compact) return; + + if (this._buf.hasContent() && !this.endsWith(" ") && !this.endsWith("\n") || force) { + this._space(); + } + }; + + Printer.prototype.word = function word(str) { + if (this._endsWithWord) this._space(); + + this._maybeAddAuxComment(); + this._append(str); + + this._endsWithWord = true; + }; + + Printer.prototype.number = function number(str) { + this.word(str); + + this._endsWithInteger = (0, _isInteger2.default)(+str) && !NON_DECIMAL_LITERAL.test(str) && !SCIENTIFIC_NOTATION.test(str) && !ZERO_DECIMAL_INTEGER.test(str) && str[str.length - 1] !== "."; + }; + + Printer.prototype.token = function token(str) { + if (str === "--" && this.endsWith("!") || str[0] === "+" && this.endsWith("+") || str[0] === "-" && this.endsWith("-") || str[0] === "." && this._endsWithInteger) { + this._space(); + } + + this._maybeAddAuxComment(); + this._append(str); + }; + + Printer.prototype.newline = function newline(i) { + if (this.format.retainLines || this.format.compact) return; + + if (this.format.concise) { + this.space(); + return; + } + + if (this.endsWith("\n\n")) return; + + if (typeof i !== "number") i = 1; + + i = Math.min(2, i); + if (this.endsWith("{\n") || this.endsWith(":\n")) i--; + if (i <= 0) return; + + for (var j = 0; j < i; j++) { + this._newline(); + } + }; + + Printer.prototype.endsWith = function endsWith(str) { + return this._buf.endsWith(str); + }; + + Printer.prototype.removeTrailingNewline = function removeTrailingNewline() { + this._buf.removeTrailingNewline(); + }; + + Printer.prototype.source = function source(prop, loc) { + this._catchUp(prop, loc); + + this._buf.source(prop, loc); + }; + + Printer.prototype.withSource = function withSource(prop, loc, cb) { + this._catchUp(prop, loc); + + this._buf.withSource(prop, loc, cb); + }; + + Printer.prototype._space = function _space() { + this._append(" ", true); + }; + + Printer.prototype._newline = function _newline() { + this._append("\n", true); + }; + + Printer.prototype._append = function _append(str) { + var queue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false; + + this._maybeAddParen(str); + this._maybeIndent(str); + + if (queue) this._buf.queue(str);else this._buf.append(str); + + this._endsWithWord = false; + this._endsWithInteger = false; + }; + + Printer.prototype._maybeIndent = function _maybeIndent(str) { + if (this._indent && this.endsWith("\n") && str[0] !== "\n") { + this._buf.queue(this._getIndent()); + } + }; + + Printer.prototype._maybeAddParen = function _maybeAddParen(str) { + var parenPushNewlineState = this._parenPushNewlineState; + if (!parenPushNewlineState) return; + this._parenPushNewlineState = null; + + var i = void 0; + for (i = 0; i < str.length && str[i] === " "; i++) { + continue; + }if (i === str.length) return; + + var cha = str[i]; + if (cha === "\n" || cha === "/") { + this.token("("); + this.indent(); + parenPushNewlineState.printed = true; + } + }; + + Printer.prototype._catchUp = function _catchUp(prop, loc) { + if (!this.format.retainLines) return; + + var pos = loc ? loc[prop] : null; + if (pos && pos.line !== null) { + var count = pos.line - this._buf.getCurrentLine(); + + for (var i = 0; i < count; i++) { + this._newline(); + } + } + }; + + Printer.prototype._getIndent = function _getIndent() { + return (0, _repeat2.default)(this.format.indent.style, this._indent); + }; + + Printer.prototype.startTerminatorless = function startTerminatorless() { + return this._parenPushNewlineState = { + printed: false + }; + }; + + Printer.prototype.endTerminatorless = function endTerminatorless(state) { + if (state.printed) { + this.dedent(); + this.newline(); + this.token(")"); + } + }; + + Printer.prototype.print = function print(node, parent) { + var _this = this; + + if (!node) return; + + var oldConcise = this.format.concise; + if (node._compact) { + this.format.concise = true; + } + + var printMethod = this[node.type]; + if (!printMethod) { + throw new ReferenceError("unknown node of type " + (0, _stringify2.default)(node.type) + " with constructor " + (0, _stringify2.default)(node && node.constructor.name)); + } + + this._printStack.push(node); + + var oldInAux = this._insideAux; + this._insideAux = !node.loc; + this._maybeAddAuxComment(this._insideAux && !oldInAux); + + var needsParens = n.needsParens(node, parent, this._printStack); + if (this.format.retainFunctionParens && node.type === "FunctionExpression" && node.extra && node.extra.parenthesized) { + needsParens = true; + } + if (needsParens) this.token("("); + + this._printLeadingComments(node, parent); + + var loc = t.isProgram(node) || t.isFile(node) ? null : node.loc; + this.withSource("start", loc, function () { + _this[node.type](node, parent); + }); + + this._printTrailingComments(node, parent); + + if (needsParens) this.token(")"); + + this._printStack.pop(); + + this.format.concise = oldConcise; + this._insideAux = oldInAux; + }; + + Printer.prototype._maybeAddAuxComment = function _maybeAddAuxComment(enteredPositionlessNode) { + if (enteredPositionlessNode) this._printAuxBeforeComment(); + if (!this._insideAux) this._printAuxAfterComment(); + }; + + Printer.prototype._printAuxBeforeComment = function _printAuxBeforeComment() { + if (this._printAuxAfterOnNextUserNode) return; + this._printAuxAfterOnNextUserNode = true; + + var comment = this.format.auxiliaryCommentBefore; + if (comment) { + this._printComment({ + type: "CommentBlock", + value: comment + }); + } + }; + + Printer.prototype._printAuxAfterComment = function _printAuxAfterComment() { + if (!this._printAuxAfterOnNextUserNode) return; + this._printAuxAfterOnNextUserNode = false; + + var comment = this.format.auxiliaryCommentAfter; + if (comment) { + this._printComment({ + type: "CommentBlock", + value: comment + }); + } + }; + + Printer.prototype.getPossibleRaw = function getPossibleRaw(node) { + var extra = node.extra; + if (extra && extra.raw != null && extra.rawValue != null && node.value === extra.rawValue) { + return extra.raw; + } + }; + + Printer.prototype.printJoin = function printJoin(nodes, parent) { + var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {}; + + if (!nodes || !nodes.length) return; + + if (opts.indent) this.indent(); + + var newlineOpts = { + addNewlines: opts.addNewlines + }; + + for (var i = 0; i < nodes.length; i++) { + var node = nodes[i]; + if (!node) continue; + + if (opts.statement) this._printNewline(true, node, parent, newlineOpts); + + this.print(node, parent); + + if (opts.iterator) { + opts.iterator(node, i); + } + + if (opts.separator && i < nodes.length - 1) { + opts.separator.call(this); + } + + if (opts.statement) this._printNewline(false, node, parent, newlineOpts); + } + + if (opts.indent) this.dedent(); + }; + + Printer.prototype.printAndIndentOnComments = function printAndIndentOnComments(node, parent) { + var indent = !!node.leadingComments; + if (indent) this.indent(); + this.print(node, parent); + if (indent) this.dedent(); + }; + + Printer.prototype.printBlock = function printBlock(parent) { + var node = parent.body; + + if (!t.isEmptyStatement(node)) { + this.space(); + } + + this.print(node, parent); + }; + + Printer.prototype._printTrailingComments = function _printTrailingComments(node, parent) { + this._printComments(this._getComments(false, node, parent)); + }; + + Printer.prototype._printLeadingComments = function _printLeadingComments(node, parent) { + this._printComments(this._getComments(true, node, parent)); + }; + + Printer.prototype.printInnerComments = function printInnerComments(node) { + var indent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true; + + if (!node.innerComments) return; + if (indent) this.indent(); + this._printComments(node.innerComments); + if (indent) this.dedent(); + }; + + Printer.prototype.printSequence = function printSequence(nodes, parent) { + var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {}; + + opts.statement = true; + return this.printJoin(nodes, parent, opts); + }; + + Printer.prototype.printList = function printList(items, parent) { + var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {}; + + if (opts.separator == null) { + opts.separator = commaSeparator; + } + + return this.printJoin(items, parent, opts); + }; + + Printer.prototype._printNewline = function _printNewline(leading, node, parent, opts) { + var _this2 = this; + + if (this.format.retainLines || this.format.compact) return; + + if (this.format.concise) { + this.space(); + return; + } + + var lines = 0; + + if (node.start != null && !node._ignoreUserWhitespace && this._whitespace) { + if (leading) { + var _comments = node.leadingComments; + var _comment = _comments && (0, _find2.default)(_comments, function (comment) { + return !!comment.loc && _this2.format.shouldPrintComment(comment.value); + }); + + lines = this._whitespace.getNewlinesBefore(_comment || node); + } else { + var _comments2 = node.trailingComments; + var _comment2 = _comments2 && (0, _findLast2.default)(_comments2, function (comment) { + return !!comment.loc && _this2.format.shouldPrintComment(comment.value); + }); + + lines = this._whitespace.getNewlinesAfter(_comment2 || node); + } + } else { + if (!leading) lines++; + if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0; + + var needs = n.needsWhitespaceAfter; + if (leading) needs = n.needsWhitespaceBefore; + if (needs(node, parent)) lines++; + + if (!this._buf.hasContent()) lines = 0; + } + + this.newline(lines); + }; + + Printer.prototype._getComments = function _getComments(leading, node) { + return node && (leading ? node.leadingComments : node.trailingComments) || []; + }; + + Printer.prototype._printComment = function _printComment(comment) { + var _this3 = this; + + if (!this.format.shouldPrintComment(comment.value)) return; + + if (comment.ignore) return; + + if (this._printedComments.has(comment)) return; + this._printedComments.add(comment); + + if (comment.start != null) { + if (this._printedCommentStarts[comment.start]) return; + this._printedCommentStarts[comment.start] = true; + } + + this.newline(this._whitespace ? this._whitespace.getNewlinesBefore(comment) : 0); + + if (!this.endsWith("[") && !this.endsWith("{")) this.space(); + + var val = comment.type === "CommentLine" ? "//" + comment.value + "\n" : "/*" + comment.value + "*/"; + + if (comment.type === "CommentBlock" && this.format.indent.adjustMultilineComment) { + var offset = comment.loc && comment.loc.start.column; + if (offset) { + var newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g"); + val = val.replace(newlineRegex, "\n"); + } + + var indentSize = Math.max(this._getIndent().length, this._buf.getCurrentColumn()); + val = val.replace(/\n(?!$)/g, "\n" + (0, _repeat2.default)(" ", indentSize)); + } + + this.withSource("start", comment.loc, function () { + _this3._append(val); + }); + + this.newline((this._whitespace ? this._whitespace.getNewlinesAfter(comment) : 0) + (comment.type === "CommentLine" ? -1 : 0)); + }; + + Printer.prototype._printComments = function _printComments(comments) { + if (!comments || !comments.length) return; + + for (var _iterator = comments, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) { + var _ref; + + if (_isArray) { + if (_i >= _iterator.length) break; + _ref = _iterator[_i++]; + } else { + _i = _iterator.next(); + if (_i.done) break; + _ref = _i.value; + } + + var _comment3 = _ref; + + this._printComment(_comment3); + } + }; + + return Printer; +}(); + +exports.default = Printer; + + +function commaSeparator() { + this.token(","); + this.space(); +} + +var _arr = [require("./generators/template-literals"), require("./generators/expressions"), require("./generators/statements"), require("./generators/classes"), require("./generators/methods"), require("./generators/modules"), require("./generators/types"), require("./generators/flow"), require("./generators/base"), require("./generators/jsx")]; +for (var _i2 = 0; _i2 < _arr.length; _i2++) { + var generator = _arr[_i2]; + (0, _assign2.default)(Printer.prototype, generator); +} +module.exports = exports["default"];
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