1 /* CodeMirror version: 5.40.2 */
2 // CodeMirror, copyright (c) by Marijn Haverbeke and others
3 // Distributed under an MIT license: https://codemirror.net/LICENSE
6 if (typeof exports == "object" && typeof module == "object") // CommonJS
7 mod(require("../../lib/codemirror"));
8 else if (typeof define == "function" && define.amd) // AMD
9 define(["../../lib/codemirror"], mod);
10 else // Plain browser env
12 })(function(CodeMirror) {
15 CodeMirror.defineMode("javascript", function(config, parserConfig) {
16 var indentUnit = config.indentUnit;
17 var statementIndent = parserConfig.statementIndent;
18 var jsonldMode = parserConfig.jsonld;
19 var jsonMode = parserConfig.json || jsonldMode;
20 var isTS = parserConfig.typescript;
21 var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
25 var keywords = function(){
26 function kw(type) {return {type: type, style: "keyword"};}
27 var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"), D = kw("keyword d");
28 var operator = kw("operator"), atom = {type: "atom", style: "atom"};
31 "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
32 "return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C,
33 "debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"),
34 "function": kw("function"), "catch": kw("catch"),
35 "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
36 "in": operator, "typeof": operator, "instanceof": operator,
37 "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
38 "this": kw("this"), "class": kw("class"), "super": kw("atom"),
39 "yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
44 var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
45 var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
47 function readRegexp(stream) {
48 var escaped = false, next, inSet = false;
49 while ((next = stream.next()) != null) {
51 if (next == "/" && !inSet) return;
52 if (next == "[") inSet = true;
53 else if (inSet && next == "]") inSet = false;
55 escaped = !escaped && next == "\\";
59 // Used as scratch variables to communicate multiple values without
60 // consing up tons of objects.
62 function ret(tp, style, cont) {
63 type = tp; content = cont;
66 function tokenBase(stream, state) {
67 var ch = stream.next();
68 if (ch == '"' || ch == "'") {
69 state.tokenize = tokenString(ch);
70 return state.tokenize(stream, state);
71 } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
72 return ret("number", "number");
73 } else if (ch == "." && stream.match("..")) {
74 return ret("spread", "meta");
75 } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
77 } else if (ch == "=" && stream.eat(">")) {
78 return ret("=>", "operator");
79 } else if (ch == "0" && stream.match(/^(?:x[\da-f]+|o[0-7]+|b[01]+)n?/i)) {
80 return ret("number", "number");
81 } else if (/\d/.test(ch)) {
82 stream.match(/^\d*(?:n|(?:\.\d*)?(?:[eE][+\-]?\d+)?)?/);
83 return ret("number", "number");
84 } else if (ch == "/") {
85 if (stream.eat("*")) {
86 state.tokenize = tokenComment;
87 return tokenComment(stream, state);
88 } else if (stream.eat("/")) {
90 return ret("comment", "comment");
91 } else if (expressionAllowed(stream, state, 1)) {
93 stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
94 return ret("regexp", "string-2");
97 return ret("operator", "operator", stream.current());
99 } else if (ch == "`") {
100 state.tokenize = tokenQuasi;
101 return tokenQuasi(stream, state);
102 } else if (ch == "#") {
104 return ret("error", "error");
105 } else if (isOperatorChar.test(ch)) {
106 if (ch != ">" || !state.lexical || state.lexical.type != ">") {
107 if (stream.eat("=")) {
108 if (ch == "!" || ch == "=") stream.eat("=")
109 } else if (/[<>*+\-]/.test(ch)) {
111 if (ch == ">") stream.eat(ch)
114 return ret("operator", "operator", stream.current());
115 } else if (wordRE.test(ch)) {
116 stream.eatWhile(wordRE);
117 var word = stream.current()
118 if (state.lastType != ".") {
119 if (keywords.propertyIsEnumerable(word)) {
120 var kw = keywords[word]
121 return ret(kw.type, kw.style, word)
123 if (word == "async" && stream.match(/^(\s|\/\*.*?\*\/)*[\[\(\w]/, false))
124 return ret("async", "keyword", word)
126 return ret("variable", "variable", word)
130 function tokenString(quote) {
131 return function(stream, state) {
132 var escaped = false, next;
133 if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
134 state.tokenize = tokenBase;
135 return ret("jsonld-keyword", "meta");
137 while ((next = stream.next()) != null) {
138 if (next == quote && !escaped) break;
139 escaped = !escaped && next == "\\";
141 if (!escaped) state.tokenize = tokenBase;
142 return ret("string", "string");
146 function tokenComment(stream, state) {
147 var maybeEnd = false, ch;
148 while (ch = stream.next()) {
149 if (ch == "/" && maybeEnd) {
150 state.tokenize = tokenBase;
153 maybeEnd = (ch == "*");
155 return ret("comment", "comment");
158 function tokenQuasi(stream, state) {
159 var escaped = false, next;
160 while ((next = stream.next()) != null) {
161 if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
162 state.tokenize = tokenBase;
165 escaped = !escaped && next == "\\";
167 return ret("quasi", "string-2", stream.current());
170 var brackets = "([{}])";
171 // This is a crude lookahead trick to try and notice that we're
172 // parsing the argument patterns for a fat-arrow function before we
173 // actually hit the arrow token. It only works if the arrow is on
174 // the same line as the arguments and there's no strange noise
175 // (comments) in between. Fallback is to only notice when we hit the
176 // arrow, and not declare the arguments as locals for the arrow
178 function findFatArrow(stream, state) {
179 if (state.fatArrowAt) state.fatArrowAt = null;
180 var arrow = stream.string.indexOf("=>", stream.start);
181 if (arrow < 0) return;
183 if (isTS) { // Try to skip TypeScript return type declarations after the arguments
184 var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow))
185 if (m) arrow = m.index
188 var depth = 0, sawSomething = false;
189 for (var pos = arrow - 1; pos >= 0; --pos) {
190 var ch = stream.string.charAt(pos);
191 var bracket = brackets.indexOf(ch);
192 if (bracket >= 0 && bracket < 3) {
193 if (!depth) { ++pos; break; }
194 if (--depth == 0) { if (ch == "(") sawSomething = true; break; }
195 } else if (bracket >= 3 && bracket < 6) {
197 } else if (wordRE.test(ch)) {
199 } else if (/["'\/]/.test(ch)) {
201 } else if (sawSomething && !depth) {
206 if (sawSomething && !depth) state.fatArrowAt = pos;
211 var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
213 function JSLexical(indented, column, type, align, prev, info) {
214 this.indented = indented;
215 this.column = column;
219 if (align != null) this.align = align;
222 function inScope(state, varname) {
223 for (var v = state.localVars; v; v = v.next)
224 if (v.name == varname) return true;
225 for (var cx = state.context; cx; cx = cx.prev) {
226 for (var v = cx.vars; v; v = v.next)
227 if (v.name == varname) return true;
231 function parseJS(state, style, type, content, stream) {
233 // Communicate our context to the combinators.
234 // (Less wasteful than consing up a hundred closures on every call.)
235 cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
237 if (!state.lexical.hasOwnProperty("align"))
238 state.lexical.align = true;
241 var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
242 if (combinator(type, content)) {
243 while(cc.length && cc[cc.length - 1].lex)
245 if (cx.marked) return cx.marked;
246 if (type == "variable" && inScope(state, content)) return "variable-2";
254 var cx = {state: null, column: null, marked: null, cc: null};
256 for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
259 pass.apply(null, arguments);
262 function inList(name, list) {
263 for (var v = list; v; v = v.next) if (v.name == name) return true
266 function register(varname) {
267 var state = cx.state;
270 if (state.lexical.info == "var" && state.context && state.context.block) {
271 // FIXME function decls are also not block scoped
272 var newContext = registerVarScoped(varname, state.context)
273 if (newContext != null) {
274 state.context = newContext
277 } else if (!inList(varname, state.localVars)) {
278 state.localVars = new Var(varname, state.localVars)
282 // Fall through means this is global
283 if (parserConfig.globalVars && !inList(varname, state.globalVars))
284 state.globalVars = new Var(varname, state.globalVars)
286 function registerVarScoped(varname, context) {
289 } else if (context.block) {
290 var inner = registerVarScoped(varname, context.prev)
291 if (!inner) return null
292 if (inner == context.prev) return context
293 return new Context(inner, context.vars, true)
294 } else if (inList(varname, context.vars)) {
297 return new Context(context.prev, new Var(varname, context.vars), false)
301 function isModifier(name) {
302 return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly"
307 function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block }
308 function Var(name, next) { this.name = name; this.next = next }
310 var defaultVars = new Var("this", new Var("arguments", null))
311 function pushcontext() {
312 cx.state.context = new Context(cx.state.context, cx.state.localVars, false)
313 cx.state.localVars = defaultVars
315 function pushblockcontext() {
316 cx.state.context = new Context(cx.state.context, cx.state.localVars, true)
317 cx.state.localVars = null
319 function popcontext() {
320 cx.state.localVars = cx.state.context.vars
321 cx.state.context = cx.state.context.prev
323 popcontext.lex = true
324 function pushlex(type, info) {
325 var result = function() {
326 var state = cx.state, indent = state.indented;
327 if (state.lexical.type == "stat") indent = state.lexical.indented;
328 else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
329 indent = outer.indented;
330 state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
336 var state = cx.state;
337 if (state.lexical.prev) {
338 if (state.lexical.type == ")")
339 state.indented = state.lexical.indented;
340 state.lexical = state.lexical.prev;
345 function expect(wanted) {
347 if (type == wanted) return cont();
348 else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass();
349 else return cont(exp);
354 function statement(type, value) {
355 if (type == "var") return cont(pushlex("vardef", value), vardef, expect(";"), poplex);
356 if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
357 if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
358 if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex);
359 if (type == "debugger") return cont(expect(";"));
360 if (type == "{") return cont(pushlex("}"), pushblockcontext, block, poplex, popcontext);
361 if (type == ";") return cont();
363 if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
365 return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse);
367 if (type == "function") return cont(functiondef);
368 if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
369 if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), className, poplex); }
370 if (type == "variable") {
371 if (isTS && value == "declare") {
372 cx.marked = "keyword"
373 return cont(statement)
374 } else if (isTS && (value == "module" || value == "enum" || value == "type") && cx.stream.match(/^\s*\w/, false)) {
375 cx.marked = "keyword"
376 if (value == "enum") return cont(enumdef);
377 else if (value == "type") return cont(typeexpr, expect("operator"), typeexpr, expect(";"));
378 else return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex)
379 } else if (isTS && value == "namespace") {
380 cx.marked = "keyword"
381 return cont(pushlex("form"), expression, block, poplex)
382 } else if (isTS && value == "abstract") {
383 cx.marked = "keyword"
384 return cont(statement)
386 return cont(pushlex("stat"), maybelabel);
389 if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"), pushblockcontext,
390 block, poplex, poplex, popcontext);
391 if (type == "case") return cont(expression, expect(":"));
392 if (type == "default") return cont(expect(":"));
393 if (type == "catch") return cont(pushlex("form"), pushcontext, maybeCatchBinding, statement, poplex, popcontext);
394 if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
395 if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
396 if (type == "async") return cont(statement)
397 if (value == "@") return cont(expression, statement)
398 return pass(pushlex("stat"), expression, expect(";"), poplex);
400 function maybeCatchBinding(type) {
401 if (type == "(") return cont(funarg, expect(")"))
403 function expression(type, value) {
404 return expressionInner(type, value, false);
406 function expressionNoComma(type, value) {
407 return expressionInner(type, value, true);
409 function parenExpr(type) {
410 if (type != "(") return pass()
411 return cont(pushlex(")"), expression, expect(")"), poplex)
413 function expressionInner(type, value, noComma) {
414 if (cx.state.fatArrowAt == cx.stream.start) {
415 var body = noComma ? arrowBodyNoComma : arrowBody;
416 if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext);
417 else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
420 var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
421 if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
422 if (type == "function") return cont(functiondef, maybeop);
423 if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), classExpression, poplex); }
424 if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression);
425 if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
426 if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
427 if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
428 if (type == "{") return contCommasep(objprop, "}", null, maybeop);
429 if (type == "quasi") return pass(quasi, maybeop);
430 if (type == "new") return cont(maybeTarget(noComma));
431 if (type == "import") return cont(expression);
434 function maybeexpression(type) {
435 if (type.match(/[;\}\)\],]/)) return pass();
436 return pass(expression);
439 function maybeoperatorComma(type, value) {
440 if (type == ",") return cont(expression);
441 return maybeoperatorNoComma(type, value, false);
443 function maybeoperatorNoComma(type, value, noComma) {
444 var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
445 var expr = noComma == false ? expression : expressionNoComma;
446 if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
447 if (type == "operator") {
448 if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me);
449 if (isTS && value == "<" && cx.stream.match(/^([^>]|<.*?>)*>\s*\(/, false))
450 return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me);
451 if (value == "?") return cont(expression, expect(":"), expr);
454 if (type == "quasi") { return pass(quasi, me); }
455 if (type == ";") return;
456 if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
457 if (type == ".") return cont(property, me);
458 if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
459 if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) }
460 if (type == "regexp") {
461 cx.state.lastType = cx.marked = "operator"
462 cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)
466 function quasi(type, value) {
467 if (type != "quasi") return pass();
468 if (value.slice(value.length - 2) != "${") return cont(quasi);
469 return cont(expression, continueQuasi);
471 function continueQuasi(type) {
473 cx.marked = "string-2";
474 cx.state.tokenize = tokenQuasi;
478 function arrowBody(type) {
479 findFatArrow(cx.stream, cx.state);
480 return pass(type == "{" ? statement : expression);
482 function arrowBodyNoComma(type) {
483 findFatArrow(cx.stream, cx.state);
484 return pass(type == "{" ? statement : expressionNoComma);
486 function maybeTarget(noComma) {
487 return function(type) {
488 if (type == ".") return cont(noComma ? targetNoComma : target);
489 else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)
490 else return pass(noComma ? expressionNoComma : expression);
493 function target(_, value) {
494 if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
496 function targetNoComma(_, value) {
497 if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
499 function maybelabel(type) {
500 if (type == ":") return cont(poplex, statement);
501 return pass(maybeoperatorComma, expect(";"), poplex);
503 function property(type) {
504 if (type == "variable") {cx.marked = "property"; return cont();}
506 function objprop(type, value) {
507 if (type == "async") {
508 cx.marked = "property";
509 return cont(objprop);
510 } else if (type == "variable" || cx.style == "keyword") {
511 cx.marked = "property";
512 if (value == "get" || value == "set") return cont(getterSetter);
513 var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params
514 if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false)))
515 cx.state.fatArrowAt = cx.stream.pos + m[0].length
516 return cont(afterprop);
517 } else if (type == "number" || type == "string") {
518 cx.marked = jsonldMode ? "property" : (cx.style + " property");
519 return cont(afterprop);
520 } else if (type == "jsonld-keyword") {
521 return cont(afterprop);
522 } else if (isTS && isModifier(value)) {
523 cx.marked = "keyword"
525 } else if (type == "[") {
526 return cont(expression, maybetype, expect("]"), afterprop);
527 } else if (type == "spread") {
528 return cont(expressionNoComma, afterprop);
529 } else if (value == "*") {
530 cx.marked = "keyword";
531 return cont(objprop);
532 } else if (type == ":") {
533 return pass(afterprop)
536 function getterSetter(type) {
537 if (type != "variable") return pass(afterprop);
538 cx.marked = "property";
539 return cont(functiondef);
541 function afterprop(type) {
542 if (type == ":") return cont(expressionNoComma);
543 if (type == "(") return pass(functiondef);
545 function commasep(what, end, sep) {
546 function proceed(type, value) {
547 if (sep ? sep.indexOf(type) > -1 : type == ",") {
548 var lex = cx.state.lexical;
549 if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
550 return cont(function(type, value) {
551 if (type == end || value == end) return pass()
555 if (type == end || value == end) return cont();
556 return cont(expect(end));
558 return function(type, value) {
559 if (type == end || value == end) return cont();
560 return pass(what, proceed);
563 function contCommasep(what, end, info) {
564 for (var i = 3; i < arguments.length; i++)
565 cx.cc.push(arguments[i]);
566 return cont(pushlex(end, info), commasep(what, end), poplex);
568 function block(type) {
569 if (type == "}") return cont();
570 return pass(statement, block);
572 function maybetype(type, value) {
574 if (type == ":") return cont(typeexpr);
575 if (value == "?") return cont(maybetype);
578 function mayberettype(type) {
579 if (isTS && type == ":") {
580 if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr)
581 else return cont(typeexpr)
584 function isKW(_, value) {
586 cx.marked = "keyword"
590 function typeexpr(type, value) {
591 if (value == "keyof" || value == "typeof") {
592 cx.marked = "keyword"
593 return cont(value == "keyof" ? typeexpr : expressionNoComma)
595 if (type == "variable" || value == "void") {
597 return cont(afterType)
599 if (type == "string" || type == "number" || type == "atom") return cont(afterType);
600 if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType)
601 if (type == "{") return cont(pushlex("}"), commasep(typeprop, "}", ",;"), poplex, afterType)
602 if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType)
603 if (type == "<") return cont(commasep(typeexpr, ">"), typeexpr)
605 function maybeReturnType(type) {
606 if (type == "=>") return cont(typeexpr)
608 function typeprop(type, value) {
609 if (type == "variable" || cx.style == "keyword") {
610 cx.marked = "property"
611 return cont(typeprop)
612 } else if (value == "?") {
613 return cont(typeprop)
614 } else if (type == ":") {
615 return cont(typeexpr)
616 } else if (type == "[") {
617 return cont(expression, maybetype, expect("]"), typeprop)
620 function typearg(type, value) {
621 if (type == "variable" && cx.stream.match(/^\s*[?:]/, false) || value == "?") return cont(typearg)
622 if (type == ":") return cont(typeexpr)
623 return pass(typeexpr)
625 function afterType(type, value) {
626 if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
627 if (value == "|" || type == "." || value == "&") return cont(typeexpr)
628 if (type == "[") return cont(expect("]"), afterType)
629 if (value == "extends" || value == "implements") { cx.marked = "keyword"; return cont(typeexpr) }
631 function maybeTypeArgs(_, value) {
632 if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
634 function typeparam() {
635 return pass(typeexpr, maybeTypeDefault)
637 function maybeTypeDefault(_, value) {
638 if (value == "=") return cont(typeexpr)
640 function vardef(_, value) {
641 if (value == "enum") {cx.marked = "keyword"; return cont(enumdef)}
642 return pass(pattern, maybetype, maybeAssign, vardefCont);
644 function pattern(type, value) {
645 if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(pattern) }
646 if (type == "variable") { register(value); return cont(); }
647 if (type == "spread") return cont(pattern);
648 if (type == "[") return contCommasep(eltpattern, "]");
649 if (type == "{") return contCommasep(proppattern, "}");
651 function proppattern(type, value) {
652 if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
654 return cont(maybeAssign);
656 if (type == "variable") cx.marked = "property";
657 if (type == "spread") return cont(pattern);
658 if (type == "}") return pass();
659 return cont(expect(":"), pattern, maybeAssign);
661 function eltpattern() {
662 return pass(pattern, maybeAssign)
664 function maybeAssign(_type, value) {
665 if (value == "=") return cont(expressionNoComma);
667 function vardefCont(type) {
668 if (type == ",") return cont(vardef);
670 function maybeelse(type, value) {
671 if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
673 function forspec(type, value) {
674 if (value == "await") return cont(forspec);
675 if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
677 function forspec1(type) {
678 if (type == "var") return cont(vardef, expect(";"), forspec2);
679 if (type == ";") return cont(forspec2);
680 if (type == "variable") return cont(formaybeinof);
681 return pass(expression, expect(";"), forspec2);
683 function formaybeinof(_type, value) {
684 if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
685 return cont(maybeoperatorComma, forspec2);
687 function forspec2(type, value) {
688 if (type == ";") return cont(forspec3);
689 if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
690 return pass(expression, expect(";"), forspec3);
692 function forspec3(type) {
693 if (type != ")") cont(expression);
695 function functiondef(type, value) {
696 if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
697 if (type == "variable") {register(value); return cont(functiondef);}
698 if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext);
699 if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef)
701 function funarg(type, value) {
702 if (value == "@") cont(expression, funarg)
703 if (type == "spread") return cont(funarg);
704 if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(funarg); }
705 return pass(pattern, maybetype, maybeAssign);
707 function classExpression(type, value) {
708 // Class expressions may have an optional name.
709 if (type == "variable") return className(type, value);
710 return classNameAfter(type, value);
712 function className(type, value) {
713 if (type == "variable") {register(value); return cont(classNameAfter);}
715 function classNameAfter(type, value) {
716 if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter)
717 if (value == "extends" || value == "implements" || (isTS && type == ",")) {
718 if (value == "implements") cx.marked = "keyword";
719 return cont(isTS ? typeexpr : expression, classNameAfter);
721 if (type == "{") return cont(pushlex("}"), classBody, poplex);
723 function classBody(type, value) {
724 if (type == "async" ||
725 (type == "variable" &&
726 (value == "static" || value == "get" || value == "set" || (isTS && isModifier(value))) &&
727 cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) {
728 cx.marked = "keyword";
729 return cont(classBody);
731 if (type == "variable" || cx.style == "keyword") {
732 cx.marked = "property";
733 return cont(isTS ? classfield : functiondef, classBody);
736 return cont(expression, maybetype, expect("]"), isTS ? classfield : functiondef, classBody)
738 cx.marked = "keyword";
739 return cont(classBody);
741 if (type == ";") return cont(classBody);
742 if (type == "}") return cont();
743 if (value == "@") return cont(expression, classBody)
745 function classfield(type, value) {
746 if (value == "?") return cont(classfield)
747 if (type == ":") return cont(typeexpr, maybeAssign)
748 if (value == "=") return cont(expressionNoComma)
749 return pass(functiondef)
751 function afterExport(type, value) {
752 if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
753 if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
754 if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
755 return pass(statement);
757 function exportField(type, value) {
758 if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
759 if (type == "variable") return pass(expressionNoComma, exportField);
761 function afterImport(type) {
762 if (type == "string") return cont();
763 if (type == "(") return pass(expression);
764 return pass(importSpec, maybeMoreImports, maybeFrom);
766 function importSpec(type, value) {
767 if (type == "{") return contCommasep(importSpec, "}");
768 if (type == "variable") register(value);
769 if (value == "*") cx.marked = "keyword";
770 return cont(maybeAs);
772 function maybeMoreImports(type) {
773 if (type == ",") return cont(importSpec, maybeMoreImports)
775 function maybeAs(_type, value) {
776 if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
778 function maybeFrom(_type, value) {
779 if (value == "from") { cx.marked = "keyword"; return cont(expression); }
781 function arrayLiteral(type) {
782 if (type == "]") return cont();
783 return pass(commasep(expressionNoComma, "]"));
786 return pass(pushlex("form"), pattern, expect("{"), pushlex("}"), commasep(enummember, "}"), poplex, poplex)
788 function enummember() {
789 return pass(pattern, maybeAssign);
792 function isContinuedStatement(state, textAfter) {
793 return state.lastType == "operator" || state.lastType == "," ||
794 isOperatorChar.test(textAfter.charAt(0)) ||
795 /[,.]/.test(textAfter.charAt(0));
798 function expressionAllowed(stream, state, backUp) {
799 return state.tokenize == tokenBase &&
800 /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
801 (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
807 startState: function(basecolumn) {
812 lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
813 localVars: parserConfig.localVars,
814 context: parserConfig.localVars && new Context(null, null, false),
815 indented: basecolumn || 0
817 if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
818 state.globalVars = parserConfig.globalVars;
822 token: function(stream, state) {
824 if (!state.lexical.hasOwnProperty("align"))
825 state.lexical.align = false;
826 state.indented = stream.indentation();
827 findFatArrow(stream, state);
829 if (state.tokenize != tokenComment && stream.eatSpace()) return null;
830 var style = state.tokenize(stream, state);
831 if (type == "comment") return style;
832 state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
833 return parseJS(state, style, type, content, stream);
836 indent: function(state, textAfter) {
837 if (state.tokenize == tokenComment) return CodeMirror.Pass;
838 if (state.tokenize != tokenBase) return 0;
839 var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top
840 // Kludge to prevent 'maybelse' from blocking lexical scope pops
841 if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
843 if (c == poplex) lexical = lexical.prev;
844 else if (c != maybeelse) break;
846 while ((lexical.type == "stat" || lexical.type == "form") &&
847 (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
848 (top == maybeoperatorComma || top == maybeoperatorNoComma) &&
849 !/^[,\.=+\-*:?[\(]/.test(textAfter))))
850 lexical = lexical.prev;
851 if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
852 lexical = lexical.prev;
853 var type = lexical.type, closing = firstChar == type;
855 if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0);
856 else if (type == "form" && firstChar == "{") return lexical.indented;
857 else if (type == "form") return lexical.indented + indentUnit;
858 else if (type == "stat")
859 return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
860 else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
861 return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
862 else if (lexical.align) return lexical.column + (closing ? 0 : 1);
863 else return lexical.indented + (closing ? 0 : indentUnit);
866 electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
867 blockCommentStart: jsonMode ? null : "/*",
868 blockCommentEnd: jsonMode ? null : "*/",
869 blockCommentContinue: jsonMode ? null : " * ",
870 lineComment: jsonMode ? null : "//",
872 closeBrackets: "()[]{}''\"\"``",
874 helperType: jsonMode ? "json" : "javascript",
875 jsonldMode: jsonldMode,
878 expressionAllowed: expressionAllowed,
880 skipExpression: function(state) {
881 var top = state.cc[state.cc.length - 1]
882 if (top == expression || top == expressionNoComma) state.cc.pop()
887 CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
889 CodeMirror.defineMIME("text/javascript", "javascript");
890 CodeMirror.defineMIME("text/ecmascript", "javascript");
891 CodeMirror.defineMIME("application/javascript", "javascript");
892 CodeMirror.defineMIME("application/x-javascript", "javascript");
893 CodeMirror.defineMIME("application/ecmascript", "javascript");
894 CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
895 CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
896 CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
897 CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
898 CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });