lepu-test-platform-web/node_modules/babel-generator/lib/printer.js

555 lines
16 KiB
JavaScript

"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"];