1161 lines
38 KiB
JavaScript
1161 lines
38 KiB
JavaScript
// Generated by CoffeeScript 2.0.0-beta1
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(function() {
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var BOM, BOOL, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_ALIAS_MAP, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, HERECOMMENT_ILLEGAL, HEREDOC_DOUBLE, HEREDOC_INDENT, HEREDOC_SINGLE, HEREGEX, HEREGEX_OMIT, HERE_JSTOKEN, IDENTIFIER, INDENTABLE_CLOSERS, INDEXABLE, INVERSES, JSTOKEN, JS_KEYWORDS, LEADING_BLANK_LINE, LINE_BREAK, LINE_CONTINUER, Lexer, MATH, MULTI_DENT, NOT_REGEX, NUMBER, OPERATOR, POSSIBLY_DIVISION, REGEX, REGEX_FLAGS, REGEX_ILLEGAL, REGEX_INVALID_ESCAPE, RELATION, RESERVED, Rewriter, SHIFT, SIMPLE_STRING_OMIT, STRICT_PROSCRIBED, STRING_DOUBLE, STRING_INVALID_ESCAPE, STRING_OMIT, STRING_SINGLE, STRING_START, TRAILING_BLANK_LINE, TRAILING_SPACES, UNARY, UNARY_MATH, UNICODE_CODE_POINT_ESCAPE, VALID_FLAGS, WHITESPACE, compact, count, invertLiterate, isForFrom, isUnassignable, key, locationDataToString, repeat, starts, throwSyntaxError,
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indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
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({Rewriter, INVERSES} = require('./rewriter'));
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({count, starts, compact, repeat, invertLiterate, locationDataToString, throwSyntaxError} = require('./helpers'));
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exports.Lexer = Lexer = class Lexer {
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tokenize(code, opts = {}) {
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var consumed, end, i;
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this.literate = opts.literate;
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this.indent = 0;
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this.baseIndent = 0;
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this.indebt = 0;
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this.outdebt = 0;
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this.indents = [];
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this.indentLiteral = '';
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this.ends = [];
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this.tokens = [];
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this.seenFor = false;
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this.seenImport = false;
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this.seenExport = false;
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this.importSpecifierList = false;
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this.exportSpecifierList = false;
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this.chunkLine = opts.line || 0;
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this.chunkColumn = opts.column || 0;
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code = this.clean(code);
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i = 0;
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while (this.chunk = code.slice(i)) {
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consumed = this.identifierToken() || this.commentToken() || this.whitespaceToken() || this.lineToken() || this.stringToken() || this.numberToken() || this.regexToken() || this.jsToken() || this.literalToken();
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[this.chunkLine, this.chunkColumn] = this.getLineAndColumnFromChunk(consumed);
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i += consumed;
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if (opts.untilBalanced && this.ends.length === 0) {
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return {
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tokens: this.tokens,
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index: i
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};
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}
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}
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this.closeIndentation();
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if (end = this.ends.pop()) {
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this.error(`missing ${end.tag}`, end.origin[2]);
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}
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if (opts.rewrite === false) {
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return this.tokens;
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}
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return (new Rewriter).rewrite(this.tokens);
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}
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clean(code) {
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if (code.charCodeAt(0) === BOM) {
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code = code.slice(1);
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}
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code = code.replace(/\r/g, '').replace(TRAILING_SPACES, '');
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if (WHITESPACE.test(code)) {
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code = `\n${code}`;
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this.chunkLine--;
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}
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if (this.literate) {
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code = invertLiterate(code);
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}
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return code;
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}
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identifierToken() {
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var alias, colon, colonOffset, id, idLength, input, match, poppedToken, prev, prevprev, ref, ref1, ref2, ref3, ref4, ref5, ref6, ref7, tag, tagToken;
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if (!(match = IDENTIFIER.exec(this.chunk))) {
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return 0;
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}
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[input, id, colon] = match;
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idLength = id.length;
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poppedToken = void 0;
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if (id === 'own' && this.tag() === 'FOR') {
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this.token('OWN', id);
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return id.length;
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}
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if (id === 'from' && this.tag() === 'YIELD') {
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this.token('FROM', id);
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return id.length;
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}
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if (id === 'as' && this.seenImport) {
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if (this.value() === '*') {
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this.tokens[this.tokens.length - 1][0] = 'IMPORT_ALL';
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} else if (ref = this.value(), indexOf.call(COFFEE_KEYWORDS, ref) >= 0) {
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this.tokens[this.tokens.length - 1][0] = 'IDENTIFIER';
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}
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if ((ref1 = this.tag()) === 'DEFAULT' || ref1 === 'IMPORT_ALL' || ref1 === 'IDENTIFIER') {
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this.token('AS', id);
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return id.length;
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}
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}
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if (id === 'as' && this.seenExport && ((ref2 = this.tag()) === 'IDENTIFIER' || ref2 === 'DEFAULT')) {
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this.token('AS', id);
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return id.length;
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}
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if (id === 'default' && this.seenExport && ((ref3 = this.tag()) === 'EXPORT' || ref3 === 'AS')) {
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this.token('DEFAULT', id);
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return id.length;
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}
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prev = this.prev();
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tag = colon || (prev != null) && (((ref4 = prev[0]) === '.' || ref4 === '?.' || ref4 === '::' || ref4 === '?::') || !prev.spaced && prev[0] === '@') ? 'PROPERTY' : 'IDENTIFIER';
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if (tag === 'IDENTIFIER' && (indexOf.call(JS_KEYWORDS, id) >= 0 || indexOf.call(COFFEE_KEYWORDS, id) >= 0) && !(this.exportSpecifierList && indexOf.call(COFFEE_KEYWORDS, id) >= 0)) {
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tag = id.toUpperCase();
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if (tag === 'WHEN' && (ref5 = this.tag(), indexOf.call(LINE_BREAK, ref5) >= 0)) {
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tag = 'LEADING_WHEN';
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} else if (tag === 'FOR') {
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this.seenFor = true;
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} else if (tag === 'UNLESS') {
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tag = 'IF';
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} else if (tag === 'IMPORT') {
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this.seenImport = true;
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} else if (tag === 'EXPORT') {
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this.seenExport = true;
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} else if (indexOf.call(UNARY, tag) >= 0) {
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tag = 'UNARY';
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} else if (indexOf.call(RELATION, tag) >= 0) {
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if (tag !== 'INSTANCEOF' && this.seenFor) {
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tag = 'FOR' + tag;
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this.seenFor = false;
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} else {
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tag = 'RELATION';
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if (this.value() === '!') {
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poppedToken = this.tokens.pop();
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id = '!' + id;
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}
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}
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}
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} else if (tag === 'IDENTIFIER' && this.seenFor && id === 'from' && isForFrom(prev)) {
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tag = 'FORFROM';
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this.seenFor = false;
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} else if (tag === 'PROPERTY' && prev) {
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if (prev.spaced && (ref6 = prev[0], indexOf.call(CALLABLE, ref6) >= 0) && /^[gs]et$/.test(prev[1])) {
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this.error(`'${prev[1]}' cannot be used as a keyword, or as a function call without parentheses`, prev[2]);
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} else {
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prevprev = this.tokens[this.tokens.length - 2];
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if (((ref7 = prev[0]) === '@' || ref7 === 'THIS') && prevprev && prevprev.spaced && /^[gs]et$/.test(prevprev[1])) {
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this.error(`'${prevprev[1]}' cannot be used as a keyword, or as a function call without parentheses`, prevprev[2]);
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}
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}
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}
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if (tag === 'IDENTIFIER' && indexOf.call(RESERVED, id) >= 0) {
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this.error(`reserved word '${id}'`, {
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length: id.length
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});
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}
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if (tag !== 'PROPERTY') {
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if (indexOf.call(COFFEE_ALIASES, id) >= 0) {
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alias = id;
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id = COFFEE_ALIAS_MAP[id];
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}
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tag = (function() {
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switch (id) {
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case '!':
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return 'UNARY';
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case '==':
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case '!=':
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return 'COMPARE';
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case 'true':
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case 'false':
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return 'BOOL';
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case 'break':
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case 'continue':
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case 'debugger':
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return 'STATEMENT';
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case '&&':
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case '||':
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return id;
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default:
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return tag;
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}
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})();
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}
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tagToken = this.token(tag, id, 0, idLength);
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if (alias) {
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tagToken.origin = [tag, alias, tagToken[2]];
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}
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if (poppedToken) {
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[tagToken[2].first_line, tagToken[2].first_column] = [poppedToken[2].first_line, poppedToken[2].first_column];
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}
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if (colon) {
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colonOffset = input.lastIndexOf(':');
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this.token(':', ':', colonOffset, colon.length);
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}
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return input.length;
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}
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numberToken() {
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var base, lexedLength, match, number, numberValue, tag;
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if (!(match = NUMBER.exec(this.chunk))) {
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return 0;
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}
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number = match[0];
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lexedLength = number.length;
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switch (false) {
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case !/^0[BOX]/.test(number):
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this.error(`radix prefix in '${number}' must be lowercase`, {
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offset: 1
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});
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break;
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case !/^(?!0x).*E/.test(number):
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this.error(`exponential notation in '${number}' must be indicated with a lowercase 'e'`, {
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offset: number.indexOf('E')
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});
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break;
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case !/^0\d*[89]/.test(number):
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this.error(`decimal literal '${number}' must not be prefixed with '0'`, {
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length: lexedLength
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});
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break;
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case !/^0\d+/.test(number):
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this.error(`octal literal '${number}' must be prefixed with '0o'`, {
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length: lexedLength
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});
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}
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base = (function() {
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switch (number.charAt(1)) {
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case 'b':
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return 2;
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case 'o':
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return 8;
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case 'x':
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return 16;
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default:
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return null;
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}
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})();
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numberValue = base != null ? parseInt(number.slice(2), base) : parseFloat(number);
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tag = numberValue === 2e308 ? 'INFINITY' : 'NUMBER';
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this.token(tag, number, 0, lexedLength);
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return lexedLength;
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}
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stringToken() {
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var $, attempt, delimiter, doc, end, heredoc, i, indent, indentRegex, match, prev, quote, ref, regex, token, tokens;
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[quote] = STRING_START.exec(this.chunk) || [];
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if (!quote) {
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return 0;
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}
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prev = this.prev();
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if (prev && this.value() === 'from' && (this.seenImport || this.seenExport)) {
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prev[0] = 'FROM';
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}
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regex = (function() {
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switch (quote) {
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case "'":
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return STRING_SINGLE;
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case '"':
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return STRING_DOUBLE;
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case "'''":
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return HEREDOC_SINGLE;
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case '"""':
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return HEREDOC_DOUBLE;
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}
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})();
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heredoc = quote.length === 3;
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({
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tokens,
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index: end
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} = this.matchWithInterpolations(regex, quote));
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$ = tokens.length - 1;
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delimiter = quote.charAt(0);
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if (heredoc) {
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indent = null;
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doc = ((function() {
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var j, len, results;
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results = [];
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for (i = j = 0, len = tokens.length; j < len; i = ++j) {
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token = tokens[i];
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if (token[0] === 'NEOSTRING') {
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results.push(token[1]);
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}
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}
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return results;
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})()).join('#{}');
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while (match = HEREDOC_INDENT.exec(doc)) {
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attempt = match[1];
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if (indent === null || (0 < (ref = attempt.length) && ref < indent.length)) {
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indent = attempt;
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}
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}
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if (indent) {
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indentRegex = RegExp(`\\n${indent}`, "g");
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}
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this.mergeInterpolationTokens(tokens, {delimiter}, (value, i) => {
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value = this.formatString(value, {
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delimiter: quote
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});
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if (indentRegex) {
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value = value.replace(indentRegex, '\n');
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}
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if (i === 0) {
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value = value.replace(LEADING_BLANK_LINE, '');
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}
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if (i === $) {
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value = value.replace(TRAILING_BLANK_LINE, '');
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}
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return value;
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});
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} else {
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this.mergeInterpolationTokens(tokens, {delimiter}, (value, i) => {
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value = this.formatString(value, {
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delimiter: quote
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});
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value = value.replace(SIMPLE_STRING_OMIT, function(match, offset) {
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if ((i === 0 && offset === 0) || (i === $ && offset + match.length === value.length)) {
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return '';
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} else {
|
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return ' ';
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}
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});
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return value;
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});
|
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}
|
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return end;
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}
|
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commentToken() {
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var comment, here, match;
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if (!(match = this.chunk.match(COMMENT))) {
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return 0;
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}
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[comment, here] = match;
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if (here) {
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if (match = HERECOMMENT_ILLEGAL.exec(comment)) {
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this.error(`block comments cannot contain ${match[0]}`, {
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offset: match.index,
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length: match[0].length
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});
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}
|
|
if (here.indexOf('\n') >= 0) {
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here = here.replace(RegExp(`\\n${repeat(' ', this.indent)}`, "g"), '\n');
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}
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this.token('HERECOMMENT', here, 0, comment.length);
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}
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return comment.length;
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}
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jsToken() {
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var match, script;
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if (!(this.chunk.charAt(0) === '`' && (match = HERE_JSTOKEN.exec(this.chunk) || JSTOKEN.exec(this.chunk)))) {
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return 0;
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|
}
|
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script = match[1].replace(/\\+(`|$)/g, function(string) {
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return string.slice(-Math.ceil(string.length / 2));
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});
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this.token('JS', script, 0, match[0].length);
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return match[0].length;
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}
|
|
|
|
regexToken() {
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|
var body, closed, end, flags, index, match, origin, prev, ref, ref1, regex, tokens;
|
|
switch (false) {
|
|
case !(match = REGEX_ILLEGAL.exec(this.chunk)):
|
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this.error(`regular expressions cannot begin with ${match[2]}`, {
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offset: match.index + match[1].length
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});
|
|
break;
|
|
case !(match = this.matchWithInterpolations(HEREGEX, '///')):
|
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({tokens, index} = match);
|
|
break;
|
|
case !(match = REGEX.exec(this.chunk)):
|
|
[regex, body, closed] = match;
|
|
this.validateEscapes(body, {
|
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isRegex: true,
|
|
offsetInChunk: 1
|
|
});
|
|
body = this.formatRegex(body, {
|
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delimiter: '/'
|
|
});
|
|
index = regex.length;
|
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prev = this.prev();
|
|
if (prev) {
|
|
if (prev.spaced && (ref = prev[0], indexOf.call(CALLABLE, ref) >= 0)) {
|
|
if (!closed || POSSIBLY_DIVISION.test(regex)) {
|
|
return 0;
|
|
}
|
|
} else if (ref1 = prev[0], indexOf.call(NOT_REGEX, ref1) >= 0) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (!closed) {
|
|
this.error('missing / (unclosed regex)');
|
|
}
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
[flags] = REGEX_FLAGS.exec(this.chunk.slice(index));
|
|
end = index + flags.length;
|
|
origin = this.makeToken('REGEX', null, 0, end);
|
|
switch (false) {
|
|
case !!VALID_FLAGS.test(flags):
|
|
this.error(`invalid regular expression flags ${flags}`, {
|
|
offset: index,
|
|
length: flags.length
|
|
});
|
|
break;
|
|
case !(regex || tokens.length === 1):
|
|
if (body == null) {
|
|
body = this.formatHeregex(tokens[0][1]);
|
|
}
|
|
this.token('REGEX', `${this.makeDelimitedLiteral(body, {
|
|
delimiter: '/'
|
|
})}${flags}`, 0, end, origin);
|
|
break;
|
|
default:
|
|
this.token('REGEX_START', '(', 0, 0, origin);
|
|
this.token('IDENTIFIER', 'RegExp', 0, 0);
|
|
this.token('CALL_START', '(', 0, 0);
|
|
this.mergeInterpolationTokens(tokens, {
|
|
delimiter: '"',
|
|
double: true
|
|
}, this.formatHeregex);
|
|
if (flags) {
|
|
this.token(',', ',', index - 1, 0);
|
|
this.token('STRING', '"' + flags + '"', index - 1, flags.length);
|
|
}
|
|
this.token(')', ')', end - 1, 0);
|
|
this.token('REGEX_END', ')', end - 1, 0);
|
|
}
|
|
return end;
|
|
}
|
|
|
|
lineToken() {
|
|
var diff, indent, match, minLiteralLength, newIndentLiteral, noNewlines, size;
|
|
if (!(match = MULTI_DENT.exec(this.chunk))) {
|
|
return 0;
|
|
}
|
|
indent = match[0];
|
|
this.seenFor = false;
|
|
if (!this.importSpecifierList) {
|
|
this.seenImport = false;
|
|
}
|
|
if (!this.exportSpecifierList) {
|
|
this.seenExport = false;
|
|
}
|
|
size = indent.length - 1 - indent.lastIndexOf('\n');
|
|
noNewlines = this.unfinished();
|
|
newIndentLiteral = size > 0 ? indent.slice(-size) : '';
|
|
if (!/^(.?)\1*$/.exec(newIndentLiteral)) {
|
|
this.error('mixed indentation', {
|
|
offset: indent.length
|
|
});
|
|
return indent.length;
|
|
}
|
|
minLiteralLength = Math.min(newIndentLiteral.length, this.indentLiteral.length);
|
|
if (newIndentLiteral.slice(0, minLiteralLength) !== this.indentLiteral.slice(0, minLiteralLength)) {
|
|
this.error('indentation mismatch', {
|
|
offset: indent.length
|
|
});
|
|
return indent.length;
|
|
}
|
|
if (size - this.indebt === this.indent) {
|
|
if (noNewlines) {
|
|
this.suppressNewlines();
|
|
} else {
|
|
this.newlineToken(0);
|
|
}
|
|
return indent.length;
|
|
}
|
|
if (size > this.indent) {
|
|
if (noNewlines) {
|
|
this.indebt = size - this.indent;
|
|
this.suppressNewlines();
|
|
return indent.length;
|
|
}
|
|
if (!this.tokens.length) {
|
|
this.baseIndent = this.indent = size;
|
|
this.indentLiteral = newIndentLiteral;
|
|
return indent.length;
|
|
}
|
|
diff = size - this.indent + this.outdebt;
|
|
this.token('INDENT', diff, indent.length - size, size);
|
|
this.indents.push(diff);
|
|
this.ends.push({
|
|
tag: 'OUTDENT'
|
|
});
|
|
this.outdebt = this.indebt = 0;
|
|
this.indent = size;
|
|
this.indentLiteral = newIndentLiteral;
|
|
} else if (size < this.baseIndent) {
|
|
this.error('missing indentation', {
|
|
offset: indent.length
|
|
});
|
|
} else {
|
|
this.indebt = 0;
|
|
this.outdentToken(this.indent - size, noNewlines, indent.length);
|
|
}
|
|
return indent.length;
|
|
}
|
|
|
|
outdentToken(moveOut, noNewlines, outdentLength) {
|
|
var decreasedIndent, dent, lastIndent, ref;
|
|
decreasedIndent = this.indent - moveOut;
|
|
while (moveOut > 0) {
|
|
lastIndent = this.indents[this.indents.length - 1];
|
|
if (!lastIndent) {
|
|
moveOut = 0;
|
|
} else if (this.outdebt && moveOut <= this.outdebt) {
|
|
this.outdebt -= moveOut;
|
|
moveOut = 0;
|
|
} else {
|
|
dent = this.indents.pop() + this.outdebt;
|
|
if (outdentLength && (ref = this.chunk[outdentLength], indexOf.call(INDENTABLE_CLOSERS, ref) >= 0)) {
|
|
decreasedIndent -= dent - moveOut;
|
|
moveOut = dent;
|
|
}
|
|
this.outdebt = 0;
|
|
this.pair('OUTDENT');
|
|
this.token('OUTDENT', moveOut, 0, outdentLength);
|
|
moveOut -= dent;
|
|
}
|
|
}
|
|
if (dent) {
|
|
this.outdebt -= moveOut;
|
|
}
|
|
while (this.value() === ';') {
|
|
this.tokens.pop();
|
|
}
|
|
if (!(this.tag() === 'TERMINATOR' || noNewlines)) {
|
|
this.token('TERMINATOR', '\n', outdentLength, 0);
|
|
}
|
|
this.indent = decreasedIndent;
|
|
this.indentLiteral = this.indentLiteral.slice(0, decreasedIndent);
|
|
return this;
|
|
}
|
|
|
|
whitespaceToken() {
|
|
var match, nline, prev;
|
|
if (!((match = WHITESPACE.exec(this.chunk)) || (nline = this.chunk.charAt(0) === '\n'))) {
|
|
return 0;
|
|
}
|
|
prev = this.prev();
|
|
if (prev) {
|
|
prev[match ? 'spaced' : 'newLine'] = true;
|
|
}
|
|
if (match) {
|
|
return match[0].length;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
newlineToken(offset) {
|
|
while (this.value() === ';') {
|
|
this.tokens.pop();
|
|
}
|
|
if (this.tag() !== 'TERMINATOR') {
|
|
this.token('TERMINATOR', '\n', offset, 0);
|
|
}
|
|
return this;
|
|
}
|
|
|
|
suppressNewlines() {
|
|
if (this.value() === '\\') {
|
|
this.tokens.pop();
|
|
}
|
|
return this;
|
|
}
|
|
|
|
literalToken() {
|
|
var match, message, origin, prev, ref, ref1, ref2, ref3, skipToken, tag, token, value;
|
|
if (match = OPERATOR.exec(this.chunk)) {
|
|
[value] = match;
|
|
if (CODE.test(value)) {
|
|
this.tagParameters();
|
|
}
|
|
} else {
|
|
value = this.chunk.charAt(0);
|
|
}
|
|
tag = value;
|
|
prev = this.prev();
|
|
if (prev && indexOf.call(['=', ...COMPOUND_ASSIGN], value) >= 0) {
|
|
skipToken = false;
|
|
if (value === '=' && ((ref = prev[1]) === '||' || ref === '&&') && !prev.spaced) {
|
|
prev[0] = 'COMPOUND_ASSIGN';
|
|
prev[1] += '=';
|
|
prev = this.tokens[this.tokens.length - 2];
|
|
skipToken = true;
|
|
}
|
|
if (prev && prev[0] !== 'PROPERTY') {
|
|
origin = (ref1 = prev.origin) != null ? ref1 : prev;
|
|
message = isUnassignable(prev[1], origin[1]);
|
|
if (message) {
|
|
this.error(message, origin[2]);
|
|
}
|
|
}
|
|
if (skipToken) {
|
|
return value.length;
|
|
}
|
|
}
|
|
if (value === '{' && this.seenImport) {
|
|
this.importSpecifierList = true;
|
|
} else if (this.importSpecifierList && value === '}') {
|
|
this.importSpecifierList = false;
|
|
} else if (value === '{' && (prev != null ? prev[0] : void 0) === 'EXPORT') {
|
|
this.exportSpecifierList = true;
|
|
} else if (this.exportSpecifierList && value === '}') {
|
|
this.exportSpecifierList = false;
|
|
}
|
|
if (value === ';') {
|
|
this.seenFor = this.seenImport = this.seenExport = false;
|
|
tag = 'TERMINATOR';
|
|
} else if (value === '*' && prev[0] === 'EXPORT') {
|
|
tag = 'EXPORT_ALL';
|
|
} else if (indexOf.call(MATH, value) >= 0) {
|
|
tag = 'MATH';
|
|
} else if (indexOf.call(COMPARE, value) >= 0) {
|
|
tag = 'COMPARE';
|
|
} else if (indexOf.call(COMPOUND_ASSIGN, value) >= 0) {
|
|
tag = 'COMPOUND_ASSIGN';
|
|
} else if (indexOf.call(UNARY, value) >= 0) {
|
|
tag = 'UNARY';
|
|
} else if (indexOf.call(UNARY_MATH, value) >= 0) {
|
|
tag = 'UNARY_MATH';
|
|
} else if (indexOf.call(SHIFT, value) >= 0) {
|
|
tag = 'SHIFT';
|
|
} else if (value === '?' && (prev != null ? prev.spaced : void 0)) {
|
|
tag = 'BIN?';
|
|
} else if (prev && !prev.spaced) {
|
|
if (value === '(' && (ref2 = prev[0], indexOf.call(CALLABLE, ref2) >= 0)) {
|
|
if (prev[0] === '?') {
|
|
prev[0] = 'FUNC_EXIST';
|
|
}
|
|
tag = 'CALL_START';
|
|
} else if (value === '[' && (ref3 = prev[0], indexOf.call(INDEXABLE, ref3) >= 0)) {
|
|
tag = 'INDEX_START';
|
|
switch (prev[0]) {
|
|
case '?':
|
|
prev[0] = 'INDEX_SOAK';
|
|
}
|
|
}
|
|
}
|
|
token = this.makeToken(tag, value);
|
|
switch (value) {
|
|
case '(':
|
|
case '{':
|
|
case '[':
|
|
this.ends.push({
|
|
tag: INVERSES[value],
|
|
origin: token
|
|
});
|
|
break;
|
|
case ')':
|
|
case '}':
|
|
case ']':
|
|
this.pair(value);
|
|
}
|
|
this.tokens.push(token);
|
|
return value.length;
|
|
}
|
|
|
|
tagParameters() {
|
|
var i, stack, tok, tokens;
|
|
if (this.tag() !== ')') {
|
|
return this;
|
|
}
|
|
stack = [];
|
|
({tokens} = this);
|
|
i = tokens.length;
|
|
tokens[--i][0] = 'PARAM_END';
|
|
while (tok = tokens[--i]) {
|
|
switch (tok[0]) {
|
|
case ')':
|
|
stack.push(tok);
|
|
break;
|
|
case '(':
|
|
case 'CALL_START':
|
|
if (stack.length) {
|
|
stack.pop();
|
|
} else if (tok[0] === '(') {
|
|
tok[0] = 'PARAM_START';
|
|
return this;
|
|
} else {
|
|
return this;
|
|
}
|
|
}
|
|
}
|
|
return this;
|
|
}
|
|
|
|
closeIndentation() {
|
|
return this.outdentToken(this.indent);
|
|
}
|
|
|
|
matchWithInterpolations(regex, delimiter) {
|
|
var close, column, firstToken, index, lastToken, line, nested, offsetInChunk, open, ref, str, strPart, tokens;
|
|
tokens = [];
|
|
offsetInChunk = delimiter.length;
|
|
if (this.chunk.slice(0, offsetInChunk) !== delimiter) {
|
|
return null;
|
|
}
|
|
str = this.chunk.slice(offsetInChunk);
|
|
while (true) {
|
|
[strPart] = regex.exec(str);
|
|
this.validateEscapes(strPart, {
|
|
isRegex: delimiter.charAt(0) === '/',
|
|
offsetInChunk
|
|
});
|
|
tokens.push(this.makeToken('NEOSTRING', strPart, offsetInChunk));
|
|
str = str.slice(strPart.length);
|
|
offsetInChunk += strPart.length;
|
|
if (str.slice(0, 2) !== '#{') {
|
|
break;
|
|
}
|
|
[line, column] = this.getLineAndColumnFromChunk(offsetInChunk + 1);
|
|
({
|
|
tokens: nested,
|
|
index
|
|
} = new Lexer().tokenize(str.slice(1), {
|
|
line: line,
|
|
column: column,
|
|
untilBalanced: true
|
|
}));
|
|
index += 1;
|
|
open = nested[0], close = nested[nested.length - 1];
|
|
open[0] = open[1] = '(';
|
|
close[0] = close[1] = ')';
|
|
close.origin = ['', 'end of interpolation', close[2]];
|
|
if (((ref = nested[1]) != null ? ref[0] : void 0) === 'TERMINATOR') {
|
|
nested.splice(1, 1);
|
|
}
|
|
tokens.push(['TOKENS', nested]);
|
|
str = str.slice(index);
|
|
offsetInChunk += index;
|
|
}
|
|
if (str.slice(0, delimiter.length) !== delimiter) {
|
|
this.error(`missing ${delimiter}`, {
|
|
length: delimiter.length
|
|
});
|
|
}
|
|
firstToken = tokens[0], lastToken = tokens[tokens.length - 1];
|
|
firstToken[2].first_column -= delimiter.length;
|
|
if (lastToken[1].substr(-1) === '\n') {
|
|
lastToken[2].last_line += 1;
|
|
lastToken[2].last_column = delimiter.length - 1;
|
|
} else {
|
|
lastToken[2].last_column += delimiter.length;
|
|
}
|
|
if (lastToken[1].length === 0) {
|
|
lastToken[2].last_column -= 1;
|
|
}
|
|
return {
|
|
tokens,
|
|
index: offsetInChunk + delimiter.length
|
|
};
|
|
}
|
|
|
|
mergeInterpolationTokens(tokens, options, fn) {
|
|
var converted, firstEmptyStringIndex, firstIndex, i, j, lastToken, len, locationToken, lparen, plusToken, rparen, tag, token, tokensToPush, value;
|
|
if (tokens.length > 1) {
|
|
lparen = this.token('STRING_START', '(', 0, 0);
|
|
}
|
|
firstIndex = this.tokens.length;
|
|
for (i = j = 0, len = tokens.length; j < len; i = ++j) {
|
|
token = tokens[i];
|
|
[tag, value] = token;
|
|
switch (tag) {
|
|
case 'TOKENS':
|
|
if (value.length === 2) {
|
|
continue;
|
|
}
|
|
locationToken = value[0];
|
|
tokensToPush = value;
|
|
break;
|
|
case 'NEOSTRING':
|
|
converted = fn.call(this, token[1], i);
|
|
if (converted.length === 0) {
|
|
if (i === 0) {
|
|
firstEmptyStringIndex = this.tokens.length;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
if (i === 2 && (firstEmptyStringIndex != null)) {
|
|
this.tokens.splice(firstEmptyStringIndex, 2);
|
|
}
|
|
token[0] = 'STRING';
|
|
token[1] = this.makeDelimitedLiteral(converted, options);
|
|
locationToken = token;
|
|
tokensToPush = [token];
|
|
}
|
|
if (this.tokens.length > firstIndex) {
|
|
plusToken = this.token('+', '+');
|
|
plusToken[2] = {
|
|
first_line: locationToken[2].first_line,
|
|
first_column: locationToken[2].first_column,
|
|
last_line: locationToken[2].first_line,
|
|
last_column: locationToken[2].first_column
|
|
};
|
|
}
|
|
this.tokens.push(...tokensToPush);
|
|
}
|
|
if (lparen) {
|
|
lastToken = tokens[tokens.length - 1];
|
|
lparen.origin = [
|
|
'STRING', null, {
|
|
first_line: lparen[2].first_line,
|
|
first_column: lparen[2].first_column,
|
|
last_line: lastToken[2].last_line,
|
|
last_column: lastToken[2].last_column
|
|
}
|
|
];
|
|
rparen = this.token('STRING_END', ')');
|
|
return rparen[2] = {
|
|
first_line: lastToken[2].last_line,
|
|
first_column: lastToken[2].last_column,
|
|
last_line: lastToken[2].last_line,
|
|
last_column: lastToken[2].last_column
|
|
};
|
|
}
|
|
}
|
|
|
|
pair(tag) {
|
|
var lastIndent, prev, ref, ref1, wanted;
|
|
ref = this.ends, prev = ref[ref.length - 1];
|
|
if (tag !== (wanted = prev != null ? prev.tag : void 0)) {
|
|
if ('OUTDENT' !== wanted) {
|
|
this.error(`unmatched ${tag}`);
|
|
}
|
|
ref1 = this.indents, lastIndent = ref1[ref1.length - 1];
|
|
this.outdentToken(lastIndent, true);
|
|
return this.pair(tag);
|
|
}
|
|
return this.ends.pop();
|
|
}
|
|
|
|
getLineAndColumnFromChunk(offset) {
|
|
var column, lastLine, lineCount, ref, string;
|
|
if (offset === 0) {
|
|
return [this.chunkLine, this.chunkColumn];
|
|
}
|
|
if (offset >= this.chunk.length) {
|
|
string = this.chunk;
|
|
} else {
|
|
string = this.chunk.slice(0, +(offset - 1) + 1 || 9e9);
|
|
}
|
|
lineCount = count(string, '\n');
|
|
column = this.chunkColumn;
|
|
if (lineCount > 0) {
|
|
ref = string.split('\n'), lastLine = ref[ref.length - 1];
|
|
column = lastLine.length;
|
|
} else {
|
|
column += string.length;
|
|
}
|
|
return [this.chunkLine + lineCount, column];
|
|
}
|
|
|
|
makeToken(tag, value, offsetInChunk = 0, length = value.length) {
|
|
var lastCharacter, locationData, token;
|
|
locationData = {};
|
|
[locationData.first_line, locationData.first_column] = this.getLineAndColumnFromChunk(offsetInChunk);
|
|
lastCharacter = length > 0 ? length - 1 : 0;
|
|
[locationData.last_line, locationData.last_column] = this.getLineAndColumnFromChunk(offsetInChunk + lastCharacter);
|
|
token = [tag, value, locationData];
|
|
return token;
|
|
}
|
|
|
|
token(tag, value, offsetInChunk, length, origin) {
|
|
var token;
|
|
token = this.makeToken(tag, value, offsetInChunk, length);
|
|
if (origin) {
|
|
token.origin = origin;
|
|
}
|
|
this.tokens.push(token);
|
|
return token;
|
|
}
|
|
|
|
tag() {
|
|
var ref, token;
|
|
ref = this.tokens, token = ref[ref.length - 1];
|
|
return token != null ? token[0] : void 0;
|
|
}
|
|
|
|
value() {
|
|
var ref, token;
|
|
ref = this.tokens, token = ref[ref.length - 1];
|
|
return token != null ? token[1] : void 0;
|
|
}
|
|
|
|
prev() {
|
|
return this.tokens[this.tokens.length - 1];
|
|
}
|
|
|
|
unfinished() {
|
|
var ref;
|
|
return LINE_CONTINUER.test(this.chunk) || ((ref = this.tag()) === '\\' || ref === '.' || ref === '?.' || ref === '?::' || ref === 'UNARY' || ref === 'MATH' || ref === 'UNARY_MATH' || ref === '+' || ref === '-' || ref === '**' || ref === 'SHIFT' || ref === 'RELATION' || ref === 'COMPARE' || ref === '&' || ref === '^' || ref === '|' || ref === '&&' || ref === '||' || ref === 'BIN?' || ref === 'THROW' || ref === 'EXTENDS');
|
|
}
|
|
|
|
formatString(str, options) {
|
|
return this.replaceUnicodeCodePointEscapes(str.replace(STRING_OMIT, '$1'), options);
|
|
}
|
|
|
|
formatHeregex(str) {
|
|
return this.formatRegex(str.replace(HEREGEX_OMIT, '$1$2'), {
|
|
delimiter: '///'
|
|
});
|
|
}
|
|
|
|
formatRegex(str, options) {
|
|
return this.replaceUnicodeCodePointEscapes(str, options);
|
|
}
|
|
|
|
unicodeCodePointToUnicodeEscapes(codePoint) {
|
|
var high, low, toUnicodeEscape;
|
|
toUnicodeEscape = function(val) {
|
|
var str;
|
|
str = val.toString(16);
|
|
return `\\u${repeat('0', 4 - str.length)}${str}`;
|
|
};
|
|
if (codePoint < 0x10000) {
|
|
return toUnicodeEscape(codePoint);
|
|
}
|
|
high = Math.floor((codePoint - 0x10000) / 0x400) + 0xD800;
|
|
low = (codePoint - 0x10000) % 0x400 + 0xDC00;
|
|
return `${toUnicodeEscape(high)}${toUnicodeEscape(low)}`;
|
|
}
|
|
|
|
replaceUnicodeCodePointEscapes(str, options) {
|
|
return str.replace(UNICODE_CODE_POINT_ESCAPE, (match, escapedBackslash, codePointHex, offset) => {
|
|
var codePointDecimal;
|
|
if (escapedBackslash) {
|
|
return escapedBackslash;
|
|
}
|
|
codePointDecimal = parseInt(codePointHex, 16);
|
|
if (codePointDecimal > 0x10ffff) {
|
|
this.error("unicode code point escapes greater than \\u{10ffff} are not allowed", {
|
|
offset: offset + options.delimiter.length,
|
|
length: codePointHex.length + 4
|
|
});
|
|
}
|
|
return this.unicodeCodePointToUnicodeEscapes(codePointDecimal);
|
|
});
|
|
}
|
|
|
|
validateEscapes(str, options = {}) {
|
|
var before, hex, invalidEscape, invalidEscapeRegex, match, message, octal, ref, unicode, unicodeCodePoint;
|
|
invalidEscapeRegex = options.isRegex ? REGEX_INVALID_ESCAPE : STRING_INVALID_ESCAPE;
|
|
match = invalidEscapeRegex.exec(str);
|
|
if (!match) {
|
|
return;
|
|
}
|
|
match[0], before = match[1], octal = match[2], hex = match[3], unicodeCodePoint = match[4], unicode = match[5];
|
|
message = octal ? "octal escape sequences are not allowed" : "invalid escape sequence";
|
|
invalidEscape = `\\${octal || hex || unicodeCodePoint || unicode}`;
|
|
return this.error(`${message} ${invalidEscape}`, {
|
|
offset: ((ref = options.offsetInChunk) != null ? ref : 0) + match.index + before.length,
|
|
length: invalidEscape.length
|
|
});
|
|
}
|
|
|
|
makeDelimitedLiteral(body, options = {}) {
|
|
var regex;
|
|
if (body === '' && options.delimiter === '/') {
|
|
body = '(?:)';
|
|
}
|
|
regex = RegExp(`(\\\\\\\\)|(\\\\0(?=[1-7]))|\\\\?(${options.delimiter})|\\\\?(?:(\\n)|(\\r)|(\\u2028)|(\\u2029))|(\\\\.)`, "g");
|
|
body = body.replace(regex, function(match, backslash, nul, delimiter, lf, cr, ls, ps, other) {
|
|
switch (false) {
|
|
case !backslash:
|
|
if (options.double) {
|
|
return backslash + backslash;
|
|
} else {
|
|
return backslash;
|
|
}
|
|
case !nul:
|
|
return '\\x00';
|
|
case !delimiter:
|
|
return `\\${delimiter}`;
|
|
case !lf:
|
|
return '\\n';
|
|
case !cr:
|
|
return '\\r';
|
|
case !ls:
|
|
return '\\u2028';
|
|
case !ps:
|
|
return '\\u2029';
|
|
case !other:
|
|
if (options.double) {
|
|
return `\\${other}`;
|
|
} else {
|
|
return other;
|
|
}
|
|
}
|
|
});
|
|
return `${options.delimiter}${body}${options.delimiter}`;
|
|
}
|
|
|
|
error(message, options = {}) {
|
|
var first_column, first_line, location, ref, ref1;
|
|
location = 'first_line' in options ? options : ([first_line, first_column] = this.getLineAndColumnFromChunk((ref = options.offset) != null ? ref : 0), {
|
|
first_line,
|
|
first_column,
|
|
last_column: first_column + ((ref1 = options.length) != null ? ref1 : 1) - 1
|
|
});
|
|
return throwSyntaxError(message, location);
|
|
}
|
|
|
|
};
|
|
|
|
isUnassignable = function(name, displayName = name) {
|
|
switch (false) {
|
|
case indexOf.call([...JS_KEYWORDS, ...COFFEE_KEYWORDS], name) < 0:
|
|
return `keyword '${displayName}' can't be assigned`;
|
|
case indexOf.call(STRICT_PROSCRIBED, name) < 0:
|
|
return `'${displayName}' can't be assigned`;
|
|
case indexOf.call(RESERVED, name) < 0:
|
|
return `reserved word '${displayName}' can't be assigned`;
|
|
default:
|
|
return false;
|
|
}
|
|
};
|
|
|
|
exports.isUnassignable = isUnassignable;
|
|
|
|
isForFrom = function(prev) {
|
|
var ref;
|
|
if (prev[0] === 'IDENTIFIER') {
|
|
if (prev[1] === 'from') {
|
|
prev[1][0] = 'IDENTIFIER';
|
|
true;
|
|
}
|
|
return true;
|
|
} else if (prev[0] === 'FOR') {
|
|
return false;
|
|
} else if ((ref = prev[1]) === '{' || ref === '[' || ref === ',' || ref === ':') {
|
|
return false;
|
|
} else {
|
|
return true;
|
|
}
|
|
};
|
|
|
|
JS_KEYWORDS = ['true', 'false', 'null', 'this', 'new', 'delete', 'typeof', 'in', 'instanceof', 'return', 'throw', 'break', 'continue', 'debugger', 'yield', 'await', 'if', 'else', 'switch', 'for', 'while', 'do', 'try', 'catch', 'finally', 'class', 'extends', 'super', 'import', 'export', 'default'];
|
|
|
|
COFFEE_KEYWORDS = ['undefined', 'Infinity', 'NaN', 'then', 'unless', 'until', 'loop', 'of', 'by', 'when'];
|
|
|
|
COFFEE_ALIAS_MAP = {
|
|
and: '&&',
|
|
or: '||',
|
|
is: '==',
|
|
isnt: '!=',
|
|
not: '!',
|
|
yes: 'true',
|
|
no: 'false',
|
|
on: 'true',
|
|
off: 'false'
|
|
};
|
|
|
|
COFFEE_ALIASES = (function() {
|
|
var results;
|
|
results = [];
|
|
for (key in COFFEE_ALIAS_MAP) {
|
|
results.push(key);
|
|
}
|
|
return results;
|
|
})();
|
|
|
|
COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat(COFFEE_ALIASES);
|
|
|
|
RESERVED = ['case', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'native', 'implements', 'interface', 'package', 'private', 'protected', 'public', 'static'];
|
|
|
|
STRICT_PROSCRIBED = ['arguments', 'eval'];
|
|
|
|
exports.JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED).concat(STRICT_PROSCRIBED);
|
|
|
|
BOM = 65279;
|
|
|
|
IDENTIFIER = /^(?!\d)((?:(?!\s)[$\w\x7f-\uffff])+)([^\n\S]*:(?!:))?/;
|
|
|
|
NUMBER = /^0b[01]+|^0o[0-7]+|^0x[\da-f]+|^\d*\.?\d+(?:e[+-]?\d+)?/i;
|
|
|
|
OPERATOR = /^(?:[-=]>|[-+*\/%<>&|^!?=]=|>>>=?|([-+:])\1|([&|<>*\/%])\2=?|\?(\.|::)|\.{2,3})/;
|
|
|
|
WHITESPACE = /^[^\n\S]+/;
|
|
|
|
COMMENT = /^###([^#][\s\S]*?)(?:###[^\n\S]*|###$)|^(?:\s*#(?!##[^#]).*)+/;
|
|
|
|
CODE = /^[-=]>/;
|
|
|
|
MULTI_DENT = /^(?:\n[^\n\S]*)+/;
|
|
|
|
JSTOKEN = /^`(?!``)((?:[^`\\]|\\[\s\S])*)`/;
|
|
|
|
HERE_JSTOKEN = /^```((?:[^`\\]|\\[\s\S]|`(?!``))*)```/;
|
|
|
|
STRING_START = /^(?:'''|"""|'|")/;
|
|
|
|
STRING_SINGLE = /^(?:[^\\']|\\[\s\S])*/;
|
|
|
|
STRING_DOUBLE = /^(?:[^\\"#]|\\[\s\S]|\#(?!\{))*/;
|
|
|
|
HEREDOC_SINGLE = /^(?:[^\\']|\\[\s\S]|'(?!''))*/;
|
|
|
|
HEREDOC_DOUBLE = /^(?:[^\\"#]|\\[\s\S]|"(?!"")|\#(?!\{))*/;
|
|
|
|
STRING_OMIT = /((?:\\\\)+)|\\[^\S\n]*\n\s*/g;
|
|
|
|
SIMPLE_STRING_OMIT = /\s*\n\s*/g;
|
|
|
|
HEREDOC_INDENT = /\n+([^\n\S]*)(?=\S)/g;
|
|
|
|
REGEX = /^\/(?!\/)((?:[^[\/\n\\]|\\[^\n]|\[(?:\\[^\n]|[^\]\n\\])*\])*)(\/)?/;
|
|
|
|
REGEX_FLAGS = /^\w*/;
|
|
|
|
VALID_FLAGS = /^(?!.*(.).*\1)[imguy]*$/;
|
|
|
|
HEREGEX = /^(?:[^\\\/#]|\\[\s\S]|\/(?!\/\/)|\#(?!\{))*/;
|
|
|
|
HEREGEX_OMIT = /((?:\\\\)+)|\\(\s)|\s+(?:#.*)?/g;
|
|
|
|
REGEX_ILLEGAL = /^(\/|\/{3}\s*)(\*)/;
|
|
|
|
POSSIBLY_DIVISION = /^\/=?\s/;
|
|
|
|
HERECOMMENT_ILLEGAL = /\*\//;
|
|
|
|
LINE_CONTINUER = /^\s*(?:,|\??\.(?![.\d])|::)/;
|
|
|
|
STRING_INVALID_ESCAPE = /((?:^|[^\\])(?:\\\\)*)\\(?:(0[0-7]|[1-7])|(x(?![\da-fA-F]{2}).{0,2})|(u\{(?![\da-fA-F]{1,}\})[^}]*\}?)|(u(?!\{|[\da-fA-F]{4}).{0,4}))/;
|
|
|
|
REGEX_INVALID_ESCAPE = /((?:^|[^\\])(?:\\\\)*)\\(?:(0[0-7])|(x(?![\da-fA-F]{2}).{0,2})|(u\{(?![\da-fA-F]{1,}\})[^}]*\}?)|(u(?!\{|[\da-fA-F]{4}).{0,4}))/;
|
|
|
|
UNICODE_CODE_POINT_ESCAPE = /(\\\\)|\\u\{([\da-fA-F]+)\}/g;
|
|
|
|
LEADING_BLANK_LINE = /^[^\n\S]*\n/;
|
|
|
|
TRAILING_BLANK_LINE = /\n[^\n\S]*$/;
|
|
|
|
TRAILING_SPACES = /\s+$/;
|
|
|
|
COMPOUND_ASSIGN = ['-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=', '<<=', '>>=', '>>>=', '&=', '^=', '|=', '**=', '//=', '%%='];
|
|
|
|
UNARY = ['NEW', 'TYPEOF', 'DELETE', 'DO'];
|
|
|
|
UNARY_MATH = ['!', '~'];
|
|
|
|
SHIFT = ['<<', '>>', '>>>'];
|
|
|
|
COMPARE = ['==', '!=', '<', '>', '<=', '>='];
|
|
|
|
MATH = ['*', '/', '%', '//', '%%'];
|
|
|
|
RELATION = ['IN', 'OF', 'INSTANCEOF'];
|
|
|
|
BOOL = ['TRUE', 'FALSE'];
|
|
|
|
CALLABLE = ['IDENTIFIER', 'PROPERTY', ')', ']', '?', '@', 'THIS', 'SUPER'];
|
|
|
|
INDEXABLE = CALLABLE.concat(['NUMBER', 'INFINITY', 'NAN', 'STRING', 'STRING_END', 'REGEX', 'REGEX_END', 'BOOL', 'NULL', 'UNDEFINED', '}', '::']);
|
|
|
|
NOT_REGEX = INDEXABLE.concat(['++', '--']);
|
|
|
|
LINE_BREAK = ['INDENT', 'OUTDENT', 'TERMINATOR'];
|
|
|
|
INDENTABLE_CLOSERS = [')', '}', ']'];
|
|
|
|
}).call(this);
|