michael@0: // TODO actually recognize syntax of TypeScript constructs
michael@0: 
michael@0: (function(mod) {
michael@0:   if (typeof exports == "object" && typeof module == "object") // CommonJS
michael@0:     mod(require("../../lib/codemirror"));
michael@0:   else if (typeof define == "function" && define.amd) // AMD
michael@0:     define(["../../lib/codemirror"], mod);
michael@0:   else // Plain browser env
michael@0:     mod(CodeMirror);
michael@0: })(function(CodeMirror) {
michael@0: "use strict";
michael@0: 
michael@0: CodeMirror.defineMode("javascript", function(config, parserConfig) {
michael@0:   var indentUnit = config.indentUnit;
michael@0:   var statementIndent = parserConfig.statementIndent;
michael@0:   var jsonldMode = parserConfig.jsonld;
michael@0:   var jsonMode = parserConfig.json || jsonldMode;
michael@0:   var isTS = parserConfig.typescript;
michael@0: 
michael@0:   // Tokenizer
michael@0: 
michael@0:   var keywords = function(){
michael@0:     function kw(type) {return {type: type, style: "keyword"};}
michael@0:     var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
michael@0:     var operator = kw("operator"), atom = {type: "atom", style: "atom"};
michael@0: 
michael@0:     var jsKeywords = {
michael@0:       "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
michael@0:       "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C, "debugger": C,
michael@0:       "var": kw("var"), "const": kw("var"), "let": kw("var"),
michael@0:       "function": kw("function"), "catch": kw("catch"),
michael@0:       "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
michael@0:       "in": operator, "typeof": operator, "instanceof": operator,
michael@0:       "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
michael@0:       "this": kw("this"), "module": kw("module"), "class": kw("class"), "super": kw("atom"),
michael@0:       "yield": C, "export": kw("export"), "import": kw("import"), "extends": C
michael@0:     };
michael@0: 
michael@0:     // Extend the 'normal' keywords with the TypeScript language extensions
michael@0:     if (isTS) {
michael@0:       var type = {type: "variable", style: "variable-3"};
michael@0:       var tsKeywords = {
michael@0:         // object-like things
michael@0:         "interface": kw("interface"),
michael@0:         "extends": kw("extends"),
michael@0:         "constructor": kw("constructor"),
michael@0: 
michael@0:         // scope modifiers
michael@0:         "public": kw("public"),
michael@0:         "private": kw("private"),
michael@0:         "protected": kw("protected"),
michael@0:         "static": kw("static"),
michael@0: 
michael@0:         // types
michael@0:         "string": type, "number": type, "bool": type, "any": type
michael@0:       };
michael@0: 
michael@0:       for (var attr in tsKeywords) {
michael@0:         jsKeywords[attr] = tsKeywords[attr];
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     return jsKeywords;
michael@0:   }();
michael@0: 
michael@0:   var isOperatorChar = /[+\-*&%=<>!?|~^]/;
michael@0:   var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
michael@0: 
michael@0:   function readRegexp(stream) {
michael@0:     var escaped = false, next, inSet = false;
michael@0:     while ((next = stream.next()) != null) {
michael@0:       if (!escaped) {
michael@0:         if (next == "/" && !inSet) return;
michael@0:         if (next == "[") inSet = true;
michael@0:         else if (inSet && next == "]") inSet = false;
michael@0:       }
michael@0:       escaped = !escaped && next == "\\";
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // Used as scratch variables to communicate multiple values without
michael@0:   // consing up tons of objects.
michael@0:   var type, content;
michael@0:   function ret(tp, style, cont) {
michael@0:     type = tp; content = cont;
michael@0:     return style;
michael@0:   }
michael@0:   function tokenBase(stream, state) {
michael@0:     var ch = stream.next();
michael@0:     if (ch == '"' || ch == "'") {
michael@0:       state.tokenize = tokenString(ch);
michael@0:       return state.tokenize(stream, state);
michael@0:     } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
michael@0:       return ret("number", "number");
michael@0:     } else if (ch == "." && stream.match("..")) {
michael@0:       return ret("spread", "meta");
michael@0:     } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
michael@0:       return ret(ch);
michael@0:     } else if (ch == "=" && stream.eat(">")) {
michael@0:       return ret("=>", "operator");
michael@0:     } else if (ch == "0" && stream.eat(/x/i)) {
michael@0:       stream.eatWhile(/[\da-f]/i);
michael@0:       return ret("number", "number");
michael@0:     } else if (/\d/.test(ch)) {
michael@0:       stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
michael@0:       return ret("number", "number");
michael@0:     } else if (ch == "/") {
michael@0:       if (stream.eat("*")) {
michael@0:         state.tokenize = tokenComment;
michael@0:         return tokenComment(stream, state);
michael@0:       } else if (stream.eat("/")) {
michael@0:         stream.skipToEnd();
michael@0:         return ret("comment", "comment");
michael@0:       } else if (state.lastType == "operator" || state.lastType == "keyword c" ||
michael@0:                state.lastType == "sof" || /^[\[{}\(,;:]$/.test(state.lastType)) {
michael@0:         readRegexp(stream);
michael@0:         stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
michael@0:         return ret("regexp", "string-2");
michael@0:       } else {
michael@0:         stream.eatWhile(isOperatorChar);
michael@0:         return ret("operator", "operator", stream.current());
michael@0:       }
michael@0:     } else if (ch == "`") {
michael@0:       state.tokenize = tokenQuasi;
michael@0:       return tokenQuasi(stream, state);
michael@0:     } else if (ch == "#") {
michael@0:       stream.skipToEnd();
michael@0:       return ret("error", "error");
michael@0:     } else if (isOperatorChar.test(ch)) {
michael@0:       stream.eatWhile(isOperatorChar);
michael@0:       return ret("operator", "operator", stream.current());
michael@0:     } else {
michael@0:       stream.eatWhile(/[\w\$_]/);
michael@0:       var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
michael@0:       return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
michael@0:                      ret("variable", "variable", word);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   function tokenString(quote) {
michael@0:     return function(stream, state) {
michael@0:       var escaped = false, next;
michael@0:       if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
michael@0:         state.tokenize = tokenBase;
michael@0:         return ret("jsonld-keyword", "meta");
michael@0:       }
michael@0:       while ((next = stream.next()) != null) {
michael@0:         if (next == quote && !escaped) break;
michael@0:         escaped = !escaped && next == "\\";
michael@0:       }
michael@0:       if (!escaped) state.tokenize = tokenBase;
michael@0:       return ret("string", "string");
michael@0:     };
michael@0:   }
michael@0: 
michael@0:   function tokenComment(stream, state) {
michael@0:     var maybeEnd = false, ch;
michael@0:     while (ch = stream.next()) {
michael@0:       if (ch == "/" && maybeEnd) {
michael@0:         state.tokenize = tokenBase;
michael@0:         break;
michael@0:       }
michael@0:       maybeEnd = (ch == "*");
michael@0:     }
michael@0:     return ret("comment", "comment");
michael@0:   }
michael@0: 
michael@0:   function tokenQuasi(stream, state) {
michael@0:     var escaped = false, next;
michael@0:     while ((next = stream.next()) != null) {
michael@0:       if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
michael@0:         state.tokenize = tokenBase;
michael@0:         break;
michael@0:       }
michael@0:       escaped = !escaped && next == "\\";
michael@0:     }
michael@0:     return ret("quasi", "string-2", stream.current());
michael@0:   }
michael@0: 
michael@0:   var brackets = "([{}])";
michael@0:   // This is a crude lookahead trick to try and notice that we're
michael@0:   // parsing the argument patterns for a fat-arrow function before we
michael@0:   // actually hit the arrow token. It only works if the arrow is on
michael@0:   // the same line as the arguments and there's no strange noise
michael@0:   // (comments) in between. Fallback is to only notice when we hit the
michael@0:   // arrow, and not declare the arguments as locals for the arrow
michael@0:   // body.
michael@0:   function findFatArrow(stream, state) {
michael@0:     if (state.fatArrowAt) state.fatArrowAt = null;
michael@0:     var arrow = stream.string.indexOf("=>", stream.start);
michael@0:     if (arrow < 0) return;
michael@0: 
michael@0:     var depth = 0, sawSomething = false;
michael@0:     for (var pos = arrow - 1; pos >= 0; --pos) {
michael@0:       var ch = stream.string.charAt(pos);
michael@0:       var bracket = brackets.indexOf(ch);
michael@0:       if (bracket >= 0 && bracket < 3) {
michael@0:         if (!depth) { ++pos; break; }
michael@0:         if (--depth == 0) break;
michael@0:       } else if (bracket >= 3 && bracket < 6) {
michael@0:         ++depth;
michael@0:       } else if (/[$\w]/.test(ch)) {
michael@0:         sawSomething = true;
michael@0:       } else if (sawSomething && !depth) {
michael@0:         ++pos;
michael@0:         break;
michael@0:       }
michael@0:     }
michael@0:     if (sawSomething && !depth) state.fatArrowAt = pos;
michael@0:   }
michael@0: 
michael@0:   // Parser
michael@0: 
michael@0:   var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
michael@0: 
michael@0:   function JSLexical(indented, column, type, align, prev, info) {
michael@0:     this.indented = indented;
michael@0:     this.column = column;
michael@0:     this.type = type;
michael@0:     this.prev = prev;
michael@0:     this.info = info;
michael@0:     if (align != null) this.align = align;
michael@0:   }
michael@0: 
michael@0:   function inScope(state, varname) {
michael@0:     for (var v = state.localVars; v; v = v.next)
michael@0:       if (v.name == varname) return true;
michael@0:     for (var cx = state.context; cx; cx = cx.prev) {
michael@0:       for (var v = cx.vars; v; v = v.next)
michael@0:         if (v.name == varname) return true;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   function parseJS(state, style, type, content, stream) {
michael@0:     var cc = state.cc;
michael@0:     // Communicate our context to the combinators.
michael@0:     // (Less wasteful than consing up a hundred closures on every call.)
michael@0:     cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
michael@0: 
michael@0:     if (!state.lexical.hasOwnProperty("align"))
michael@0:       state.lexical.align = true;
michael@0: 
michael@0:     while(true) {
michael@0:       var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
michael@0:       if (combinator(type, content)) {
michael@0:         while(cc.length && cc[cc.length - 1].lex)
michael@0:           cc.pop()();
michael@0:         if (cx.marked) return cx.marked;
michael@0:         if (type == "variable" && inScope(state, content)) return "variable-2";
michael@0:         return style;
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // Combinator utils
michael@0: 
michael@0:   var cx = {state: null, column: null, marked: null, cc: null};
michael@0:   function pass() {
michael@0:     for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
michael@0:   }
michael@0:   function cont() {
michael@0:     pass.apply(null, arguments);
michael@0:     return true;
michael@0:   }
michael@0:   function register(varname) {
michael@0:     function inList(list) {
michael@0:       for (var v = list; v; v = v.next)
michael@0:         if (v.name == varname) return true;
michael@0:       return false;
michael@0:     }
michael@0:     var state = cx.state;
michael@0:     if (state.context) {
michael@0:       cx.marked = "def";
michael@0:       if (inList(state.localVars)) return;
michael@0:       state.localVars = {name: varname, next: state.localVars};
michael@0:     } else {
michael@0:       if (inList(state.globalVars)) return;
michael@0:       if (parserConfig.globalVars)
michael@0:         state.globalVars = {name: varname, next: state.globalVars};
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // Combinators
michael@0: 
michael@0:   var defaultVars = {name: "this", next: {name: "arguments"}};
michael@0:   function pushcontext() {
michael@0:     cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
michael@0:     cx.state.localVars = defaultVars;
michael@0:   }
michael@0:   function popcontext() {
michael@0:     cx.state.localVars = cx.state.context.vars;
michael@0:     cx.state.context = cx.state.context.prev;
michael@0:   }
michael@0:   function pushlex(type, info) {
michael@0:     var result = function() {
michael@0:       var state = cx.state, indent = state.indented;
michael@0:       if (state.lexical.type == "stat") indent = state.lexical.indented;
michael@0:       state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
michael@0:     };
michael@0:     result.lex = true;
michael@0:     return result;
michael@0:   }
michael@0:   function poplex() {
michael@0:     var state = cx.state;
michael@0:     if (state.lexical.prev) {
michael@0:       if (state.lexical.type == ")")
michael@0:         state.indented = state.lexical.indented;
michael@0:       state.lexical = state.lexical.prev;
michael@0:     }
michael@0:   }
michael@0:   poplex.lex = true;
michael@0: 
michael@0:   function expect(wanted) {
michael@0:     function exp(type) {
michael@0:       if (type == wanted) return cont();
michael@0:       else if (wanted == ";") return pass();
michael@0:       else return cont(exp);
michael@0:     };
michael@0:     return exp;
michael@0:   }
michael@0: 
michael@0:   function statement(type, value) {
michael@0:     if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
michael@0:     if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
michael@0:     if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
michael@0:     if (type == "{") return cont(pushlex("}"), block, poplex);
michael@0:     if (type == ";") return cont();
michael@0:     if (type == "if") return cont(pushlex("form"), expression, statement, poplex, maybeelse);
michael@0:     if (type == "function") return cont(functiondef);
michael@0:     if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
michael@0:     if (type == "variable") return cont(pushlex("stat"), maybelabel);
michael@0:     if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
michael@0:                                       block, poplex, poplex);
michael@0:     if (type == "case") return cont(expression, expect(":"));
michael@0:     if (type == "default") return cont(expect(":"));
michael@0:     if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
michael@0:                                      statement, poplex, popcontext);
michael@0:     if (type == "module") return cont(pushlex("form"), pushcontext, afterModule, popcontext, poplex);
michael@0:     if (type == "class") return cont(pushlex("form"), className, objlit, poplex);
michael@0:     if (type == "export") return cont(pushlex("form"), afterExport, poplex);
michael@0:     if (type == "import") return cont(pushlex("form"), afterImport, poplex);
michael@0:     return pass(pushlex("stat"), expression, expect(";"), poplex);
michael@0:   }
michael@0:   function expression(type) {
michael@0:     return expressionInner(type, false);
michael@0:   }
michael@0:   function expressionNoComma(type) {
michael@0:     return expressionInner(type, true);
michael@0:   }
michael@0:   function expressionInner(type, noComma) {
michael@0:     if (cx.state.fatArrowAt == cx.stream.start) {
michael@0:       var body = noComma ? arrowBodyNoComma : arrowBody;
michael@0:       if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
michael@0:       else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
michael@0:     }
michael@0: 
michael@0:     var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
michael@0:     if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
michael@0:     if (type == "function") return cont(functiondef);
michael@0:     if (type == "keyword c") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
michael@0:     if (type == "(") return cont(pushlex(")"), maybeexpression, comprehension, expect(")"), poplex, maybeop);
michael@0:     if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
michael@0:     if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
michael@0:     if (type == "{") return contCommasep(objprop, "}", null, maybeop);
michael@0:     return cont();
michael@0:   }
michael@0:   function maybeexpression(type) {
michael@0:     if (type.match(/[;\}\)\],]/)) return pass();
michael@0:     return pass(expression);
michael@0:   }
michael@0:   function maybeexpressionNoComma(type) {
michael@0:     if (type.match(/[;\}\)\],]/)) return pass();
michael@0:     return pass(expressionNoComma);
michael@0:   }
michael@0: 
michael@0:   function maybeoperatorComma(type, value) {
michael@0:     if (type == ",") return cont(expression);
michael@0:     return maybeoperatorNoComma(type, value, false);
michael@0:   }
michael@0:   function maybeoperatorNoComma(type, value, noComma) {
michael@0:     var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
michael@0:     var expr = noComma == false ? expression : expressionNoComma;
michael@0:     if (value == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
michael@0:     if (type == "operator") {
michael@0:       if (/\+\+|--/.test(value)) return cont(me);
michael@0:       if (value == "?") return cont(expression, expect(":"), expr);
michael@0:       return cont(expr);
michael@0:     }
michael@0:     if (type == "quasi") { cx.cc.push(me); return quasi(value); }
michael@0:     if (type == ";") return;
michael@0:     if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
michael@0:     if (type == ".") return cont(property, me);
michael@0:     if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
michael@0:   }
michael@0:   function quasi(value) {
michael@0:     if (value.slice(value.length - 2) != "${") return cont();
michael@0:     return cont(expression, continueQuasi);
michael@0:   }
michael@0:   function continueQuasi(type) {
michael@0:     if (type == "}") {
michael@0:       cx.marked = "string-2";
michael@0:       cx.state.tokenize = tokenQuasi;
michael@0:       return cont();
michael@0:     }
michael@0:   }
michael@0:   function arrowBody(type) {
michael@0:     findFatArrow(cx.stream, cx.state);
michael@0:     if (type == "{") return pass(statement);
michael@0:     return pass(expression);
michael@0:   }
michael@0:   function arrowBodyNoComma(type) {
michael@0:     findFatArrow(cx.stream, cx.state);
michael@0:     if (type == "{") return pass(statement);
michael@0:     return pass(expressionNoComma);
michael@0:   }
michael@0:   function maybelabel(type) {
michael@0:     if (type == ":") return cont(poplex, statement);
michael@0:     return pass(maybeoperatorComma, expect(";"), poplex);
michael@0:   }
michael@0:   function property(type) {
michael@0:     if (type == "variable") {cx.marked = "property"; return cont();}
michael@0:   }
michael@0:   function objprop(type, value) {
michael@0:     if (type == "variable") {
michael@0:       cx.marked = "property";
michael@0:       if (value == "get" || value == "set") return cont(getterSetter);
michael@0:     } else if (type == "number" || type == "string") {
michael@0:       cx.marked = jsonldMode ? "property" : (type + " property");
michael@0:     } else if (type == "[") {
michael@0:       return cont(expression, expect("]"), afterprop);
michael@0:     }
michael@0:     if (atomicTypes.hasOwnProperty(type)) return cont(afterprop);
michael@0:   }
michael@0:   function getterSetter(type) {
michael@0:     if (type != "variable") return pass(afterprop);
michael@0:     cx.marked = "property";
michael@0:     return cont(functiondef);
michael@0:   }
michael@0:   function afterprop(type) {
michael@0:     if (type == ":") return cont(expressionNoComma);
michael@0:     if (type == "(") return pass(functiondef);
michael@0:   }
michael@0:   function commasep(what, end) {
michael@0:     function proceed(type) {
michael@0:       if (type == ",") {
michael@0:         var lex = cx.state.lexical;
michael@0:         if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
michael@0:         return cont(what, proceed);
michael@0:       }
michael@0:       if (type == end) return cont();
michael@0:       return cont(expect(end));
michael@0:     }
michael@0:     return function(type) {
michael@0:       if (type == end) return cont();
michael@0:       return pass(what, proceed);
michael@0:     };
michael@0:   }
michael@0:   function contCommasep(what, end, info) {
michael@0:     for (var i = 3; i < arguments.length; i++)
michael@0:       cx.cc.push(arguments[i]);
michael@0:     return cont(pushlex(end, info), commasep(what, end), poplex);
michael@0:   }
michael@0:   function block(type) {
michael@0:     if (type == "}") return cont();
michael@0:     return pass(statement, block);
michael@0:   }
michael@0:   function maybetype(type) {
michael@0:     if (isTS && type == ":") return cont(typedef);
michael@0:   }
michael@0:   function typedef(type) {
michael@0:     if (type == "variable"){cx.marked = "variable-3"; return cont();}
michael@0:   }
michael@0:   function vardef() {
michael@0:     return pass(pattern, maybetype, maybeAssign, vardefCont);
michael@0:   }
michael@0:   function pattern(type, value) {
michael@0:     if (type == "variable") { register(value); return cont(); }
michael@0:     if (type == "[") return contCommasep(pattern, "]");
michael@0:     if (type == "{") return contCommasep(proppattern, "}");
michael@0:   }
michael@0:   function proppattern(type, value) {
michael@0:     if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
michael@0:       register(value);
michael@0:       return cont(maybeAssign);
michael@0:     }
michael@0:     if (type == "variable") cx.marked = "property";
michael@0:     return cont(expect(":"), pattern, maybeAssign);
michael@0:   }
michael@0:   function maybeAssign(_type, value) {
michael@0:     if (value == "=") return cont(expressionNoComma);
michael@0:   }
michael@0:   function vardefCont(type) {
michael@0:     if (type == ",") return cont(vardef);
michael@0:   }
michael@0:   function maybeelse(type, value) {
michael@0:     if (type == "keyword b" && value == "else") return cont(pushlex("form"), statement, poplex);
michael@0:   }
michael@0:   function forspec(type) {
michael@0:     if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
michael@0:   }
michael@0:   function forspec1(type) {
michael@0:     if (type == "var") return cont(vardef, expect(";"), forspec2);
michael@0:     if (type == ";") return cont(forspec2);
michael@0:     if (type == "variable") return cont(formaybeinof);
michael@0:     return pass(expression, expect(";"), forspec2);
michael@0:   }
michael@0:   function formaybeinof(_type, value) {
michael@0:     if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
michael@0:     return cont(maybeoperatorComma, forspec2);
michael@0:   }
michael@0:   function forspec2(type, value) {
michael@0:     if (type == ";") return cont(forspec3);
michael@0:     if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
michael@0:     return pass(expression, expect(";"), forspec3);
michael@0:   }
michael@0:   function forspec3(type) {
michael@0:     if (type != ")") cont(expression);
michael@0:   }
michael@0:   function functiondef(type, value) {
michael@0:     if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
michael@0:     if (type == "variable") {register(value); return cont(functiondef);}
michael@0:     if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, statement, popcontext);
michael@0:   }
michael@0:   function funarg(type) {
michael@0:     if (type == "spread") return cont(funarg);
michael@0:     return pass(pattern, maybetype);
michael@0:   }
michael@0:   function className(type, value) {
michael@0:     if (type == "variable") {register(value); return cont(classNameAfter);}
michael@0:   }
michael@0:   function classNameAfter(_type, value) {
michael@0:     if (value == "extends") return cont(expression);
michael@0:   }
michael@0:   function objlit(type) {
michael@0:     if (type == "{") return contCommasep(objprop, "}");
michael@0:   }
michael@0:   function afterModule(type, value) {
michael@0:     if (type == "string") return cont(statement);
michael@0:     if (type == "variable") { register(value); return cont(maybeFrom); }
michael@0:   }
michael@0:   function afterExport(_type, value) {
michael@0:     if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
michael@0:     if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
michael@0:     return pass(statement);
michael@0:   }
michael@0:   function afterImport(type) {
michael@0:     if (type == "string") return cont();
michael@0:     return pass(importSpec, maybeFrom);
michael@0:   }
michael@0:   function importSpec(type, value) {
michael@0:     if (type == "{") return contCommasep(importSpec, "}");
michael@0:     if (type == "variable") register(value);
michael@0:     return cont();
michael@0:   }
michael@0:   function maybeFrom(_type, value) {
michael@0:     if (value == "from") { cx.marked = "keyword"; return cont(expression); }
michael@0:   }
michael@0:   function arrayLiteral(type) {
michael@0:     if (type == "]") return cont();
michael@0:     return pass(expressionNoComma, maybeArrayComprehension);
michael@0:   }
michael@0:   function maybeArrayComprehension(type) {
michael@0:     if (type == "for") return pass(comprehension, expect("]"));
michael@0:     if (type == ",") return cont(commasep(expressionNoComma, "]"));
michael@0:     return pass(commasep(expressionNoComma, "]"));
michael@0:   }
michael@0:   function comprehension(type) {
michael@0:     if (type == "for") return cont(forspec, comprehension);
michael@0:     if (type == "if") return cont(expression, comprehension);
michael@0:   }
michael@0: 
michael@0:   // Interface
michael@0: 
michael@0:   return {
michael@0:     startState: function(basecolumn) {
michael@0:       var state = {
michael@0:         tokenize: tokenBase,
michael@0:         lastType: "sof",
michael@0:         cc: [],
michael@0:         lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
michael@0:         localVars: parserConfig.localVars,
michael@0:         context: parserConfig.localVars && {vars: parserConfig.localVars},
michael@0:         indented: 0
michael@0:       };
michael@0:       if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
michael@0:         state.globalVars = parserConfig.globalVars;
michael@0:       return state;
michael@0:     },
michael@0: 
michael@0:     token: function(stream, state) {
michael@0:       if (stream.sol()) {
michael@0:         if (!state.lexical.hasOwnProperty("align"))
michael@0:           state.lexical.align = false;
michael@0:         state.indented = stream.indentation();
michael@0:         findFatArrow(stream, state);
michael@0:       }
michael@0:       if (state.tokenize != tokenComment && stream.eatSpace()) return null;
michael@0:       var style = state.tokenize(stream, state);
michael@0:       if (type == "comment") return style;
michael@0:       state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
michael@0:       return parseJS(state, style, type, content, stream);
michael@0:     },
michael@0: 
michael@0:     indent: function(state, textAfter) {
michael@0:       if (state.tokenize == tokenComment) return CodeMirror.Pass;
michael@0:       if (state.tokenize != tokenBase) return 0;
michael@0:       var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
michael@0:       // Kludge to prevent 'maybelse' from blocking lexical scope pops
michael@0:       for (var i = state.cc.length - 1; i >= 0; --i) {
michael@0:         var c = state.cc[i];
michael@0:         if (c == poplex) lexical = lexical.prev;
michael@0:         else if (c != maybeelse) break;
michael@0:       }
michael@0:       if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
michael@0:       if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
michael@0:         lexical = lexical.prev;
michael@0:       var type = lexical.type, closing = firstChar == type;
michael@0: 
michael@0:       if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
michael@0:       else if (type == "form" && firstChar == "{") return lexical.indented;
michael@0:       else if (type == "form") return lexical.indented + indentUnit;
michael@0:       else if (type == "stat")
michael@0:         return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? statementIndent || indentUnit : 0);
michael@0:       else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
michael@0:         return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
michael@0:       else if (lexical.align) return lexical.column + (closing ? 0 : 1);
michael@0:       else return lexical.indented + (closing ? 0 : indentUnit);
michael@0:     },
michael@0: 
michael@0:     electricChars: ":{}",
michael@0:     blockCommentStart: jsonMode ? null : "/*",
michael@0:     blockCommentEnd: jsonMode ? null : "*/",
michael@0:     lineComment: jsonMode ? null : "//",
michael@0:     fold: "brace",
michael@0: 
michael@0:     helperType: jsonMode ? "json" : "javascript",
michael@0:     jsonldMode: jsonldMode,
michael@0:     jsonMode: jsonMode
michael@0:   };
michael@0: });
michael@0: 
michael@0: CodeMirror.defineMIME("text/javascript", "javascript");
michael@0: CodeMirror.defineMIME("text/ecmascript", "javascript");
michael@0: CodeMirror.defineMIME("application/javascript", "javascript");
michael@0: CodeMirror.defineMIME("application/ecmascript", "javascript");
michael@0: CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
michael@0: CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
michael@0: CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
michael@0: CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
michael@0: CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
michael@0: 
michael@0: });