Updated client/utils/javascript.js to reflect changes in the CodeMirror's repository (#805)

* Updated client/utils/p5-javascript.js to reflect the latest one in CodeMirror's repository

* Template string bug fixed (#773)

client/utils/p5-javascript.js

@@ -1,7 +1,7 @@
 // CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
+// Distributed under an MIT license: https://codemirror.net/LICENSE
-/* eslint-disable */
 
+/*eslint-disable*/
 (function(mod) {
   if (typeof exports == "object" && typeof module == "object") // CommonJS
     mod(require("codemirror"));
@@ -12,11 +12,6 @@
 })(function(CodeMirror) {
 "use strict";
 
-function expressionAllowed(stream, state, backUp) {
-  return /^(?:operator|sof|keyword c|case|new|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
-    (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
-}
-
 CodeMirror.defineMode("javascript", function(config, parserConfig) {
   var indentUnit = config.indentUnit;
   var statementIndent = parserConfig.statementIndent;
@@ -26,13 +21,12 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
   var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
 
   // Tokenizer
-
   var keywords = function(){
     function kw(type) {return {type: type, style: "keyword"};}
     var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
     var operator = kw("operator"), atom = {type: "atom", style: "atom"};
-    var p5Function = {type: "p5-function", style: "p5-function"};
+    var p5Function = {type: "variable", style: "p5-function"};
-    var p5Variable = {type: "p5-variable", style: "p5-variable"};
+    var p5Variable = {type: "variable", style: "p5-variable"};
 
     var jsKeywords = {
       "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
@@ -151,7 +145,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     return jsKeywords;
 }();
 
-  var isOperatorChar = /[+\-*&%=<>!?|~^]/;
+  var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
   var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
 
   function readRegexp(stream) {
@@ -186,17 +180,10 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
       return ret(ch);
     } else if (ch == "=" && stream.eat(">")) {
       return ret("=>", "operator");
-    } else if (ch == "0" && stream.eat(/x/i)) {
+    } else if (ch == "0" && stream.match(/^(?:x[\da-f]+|o[0-7]+|b[01]+)n?/i)) {
-      stream.eatWhile(/[\da-f]/i);
-      return ret("number", "number");
-    } else if (ch == "0" && stream.eat(/o/i)) {
-      stream.eatWhile(/[0-7]/i);
-      return ret("number", "number");
-    } else if (ch == "0" && stream.eat(/b/i)) {
-      stream.eatWhile(/[01]/i);
       return ret("number", "number");
     } else if (/\d/.test(ch)) {
-      stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
+      stream.match(/^\d*(?:n|(?:\.\d*)?(?:[eE][+\-]?\d+)?)?/);
       return ret("number", "number");
     } else if (ch == "/") {
       if (stream.eat("*")) {
@@ -207,10 +194,10 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
         return ret("comment", "comment");
       } else if (expressionAllowed(stream, state, 1)) {
         readRegexp(stream);
-        stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
+        stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
         return ret("regexp", "string-2");
       } else {
-        stream.eatWhile(isOperatorChar);
+        stream.eat("=");
         return ret("operator", "operator", stream.current());
       }
     } else if (ch == "`") {
@@ -220,13 +207,27 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
       stream.skipToEnd();
       return ret("error", "error");
     } else if (isOperatorChar.test(ch)) {
-      stream.eatWhile(isOperatorChar);
+      if (ch != ">" || !state.lexical || state.lexical.type != ">") {
+        if (stream.eat("=")) {
+          if (ch == "!" || ch == "=") stream.eat("=")
+        } else if (/[<>*+\-]/.test(ch)) {
+          stream.eat(ch)
+          if (ch == ">") stream.eat(ch)
+        }
+      }
       return ret("operator", "operator", stream.current());
     } else if (wordRE.test(ch)) {
       stream.eatWhile(wordRE);
-      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
+      var word = stream.current()
-      return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
+      if (state.lastType != ".") {
-                     ret("variable", "variable", word);
+        if (keywords.propertyIsEnumerable(word)) {
+          var kw = keywords[word]
+          return ret(kw.type, kw.style, word)
+        }
+        if (word == "async" && stream.match(/^(\s|\/\*.*?\*\/)*[\[\(\w]/, false))
+          return ret("async", "keyword", word)
+      }
+      return ret("variable", "variable", word)
     }
   }
 
@@ -362,35 +363,69 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     pass.apply(null, arguments);
     return true;
   }
-  function register(varname) {
+  function inList(name, list) {
-    function inList(list) {
+    for (var v = list; v; v = v.next) if (v.name == name) return true
-      for (var v = list; v; v = v.next)
-        if (v.name == varname) return true;
     return false;
   }
+  function register(varname) {
     var state = cx.state;
     cx.marked = "def";
     if (state.context) {
-      if (inList(state.localVars)) return;
+      if (state.lexical.info == "var" && state.context && state.context.block) {
-      state.localVars = {name: varname, next: state.localVars};
+        // FIXME function decls are also not block scoped
-    } else {
+        var newContext = registerVarScoped(varname, state.context)
-      if (inList(state.globalVars)) return;
+        if (newContext != null) {
-      if (parserConfig.globalVars)
+          state.context = newContext
-        state.globalVars = {name: varname, next: state.globalVars};
+          return
         }
+      } else if (!inList(varname, state.localVars)) {
+        state.localVars = new Var(varname, state.localVars)
+        return
+      }
+    }
+    window.register = register;
+    // Fall through means this is global
+    if (parserConfig.globalVars && !inList(varname, state.globalVars))
+      state.globalVars = new Var(varname, state.globalVars)
+  }
+  function registerVarScoped(varname, context) {
+    if (!context) {
+      return null
+    } else if (context.block) {
+      var inner = registerVarScoped(varname, context.prev)
+      if (!inner) return null
+      if (inner == context.prev) return context
+      return new Context(inner, context.vars, true)
+    } else if (inList(varname, context.vars)) {
+      return context
+    } else {
+      return new Context(context.prev, new Var(varname, context.vars), false)
+    }
+  }
+
+  function isModifier(name) {
+    return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly"
   }
 
   // Combinators
 
-  var defaultVars = {name: "this", next: {name: "arguments"}};
+  function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block }
+  function Var(name, next) { this.name = name; this.next = next }
+
+  var defaultVars = new Var("this", new Var("arguments", null))
   function pushcontext() {
-    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
+    cx.state.context = new Context(cx.state.context, cx.state.localVars, false)
-    cx.state.localVars = defaultVars;
+    cx.state.localVars = defaultVars
+  }
+  function pushblockcontext() {
+    cx.state.context = new Context(cx.state.context, cx.state.localVars, true)
+    cx.state.localVars = null
   }
   function popcontext() {
-    cx.state.localVars = cx.state.context.vars;
+    cx.state.localVars = cx.state.context.vars
-    cx.state.context = cx.state.context.prev;
+    cx.state.context = cx.state.context.prev
   }
+  popcontext.lex = true
   function pushlex(type, info) {
     var result = function() {
       var state = cx.state, indent = state.indented;
@@ -415,17 +450,19 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
   function expect(wanted) {
     function exp(type) {
       if (type == wanted) return cont();
-      else if (wanted == ";") return pass();
+      else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass();
       else return cont(exp);
     };
     return exp;
   }
 
   function statement(type, value) {
-    if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
+    if (type == "var") return cont(pushlex("vardef", value), vardef, expect(";"), poplex);
     if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
     if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
-    if (type == "{") return cont(pushlex("}"), block, poplex);
+    if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex);
+    if (type == "debugger") return cont(expect(";"));
+    if (type == "{") return cont(pushlex("}"), pushblockcontext, block, poplex, popcontext);
     if (type == ";") return cont();
     if (type == "if") {
       if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
@@ -434,59 +471,78 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     }
     if (type == "function") return cont(functiondef);
     if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
-    if (type == "variable") return cont(pushlex("stat"), maybelabel);
+    if (type == "class" || (isTS && value == "interface")) {
-    if (type == "switch") return cont(pushlex("form"), parenExpr, pushlex("}", "switch"), expect("{"),
+      cx.marked = "keyword"
-                                      block, poplex, poplex);
+      return cont(pushlex("form", type == "class" ? type : value), className, poplex)
+    }
+    if (type == "variable") {
+      if (isTS && value == "declare") {
+        cx.marked = "keyword"
+        return cont(statement)
+      } else if (isTS && (value == "module" || value == "enum" || value == "type") && cx.stream.match(/^\s*\w/, false)) {
+        cx.marked = "keyword"
+        if (value == "enum") return cont(enumdef);
+        else if (value == "type") return cont(typeexpr, expect("operator"), typeexpr, expect(";"));
+        else return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex)
+      } else if (isTS && value == "namespace") {
+        cx.marked = "keyword"
+        return cont(pushlex("form"), expression, statement, poplex)
+      } else if (isTS && value == "abstract") {
+        cx.marked = "keyword"
+        return cont(statement)
+      } else {
+        return cont(pushlex("stat"), maybelabel);
+      }
+    }
+    if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"), pushblockcontext,
+                                      block, poplex, poplex, popcontext);
     if (type == "case") return cont(expression, expect(":"));
     if (type == "default") return cont(expect(":"));
-    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
+    if (type == "catch") return cont(pushlex("form"), pushcontext, maybeCatchBinding, statement, poplex, popcontext);
-                                     statement, poplex, popcontext);
-    if (type == "class") return cont(pushlex("form"), className, poplex);
     if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
     if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
-    if (type == "module") return cont(pushlex("form"), pattern, pushlex("}"), expect("{"), block, poplex, poplex)
-    if (type == "type") return cont(typeexpr, expect("operator"), typeexpr, expect(";"));
     if (type == "async") return cont(statement)
+    if (value == "@") return cont(expression, statement)
     return pass(pushlex("stat"), expression, expect(";"), poplex);
   }
-  function expression(type) {
+  function maybeCatchBinding(type) {
-    return expressionInner(type, false);
+    if (type == "(") return cont(funarg, expect(")"))
   }
-  function expressionNoComma(type) {
+  function expression(type, value) {
-    return expressionInner(type, true);
+    return expressionInner(type, value, false);
+  }
+  function expressionNoComma(type, value) {
+    return expressionInner(type, value, true);
   }
   function parenExpr(type) {
     if (type != "(") return pass()
     return cont(pushlex(")"), expression, expect(")"), poplex)
   }
-  function expressionInner(type, noComma) {
+  function expressionInner(type, value, noComma) {
     if (cx.state.fatArrowAt == cx.stream.start) {
       var body = noComma ? arrowBodyNoComma : arrowBody;
-      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
+      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext);
       else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
     }
 
     var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
     if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
     if (type == "function") return cont(functiondef, maybeop);
-    if (type == "class") return cont(pushlex("form"), classExpression, poplex);
+    if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), classExpression, poplex); }
-    if (type == "keyword c" || type == "async") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
+    if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression);
     if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
     if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
     if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
     if (type == "{") return contCommasep(objprop, "}", null, maybeop);
     if (type == "quasi") return pass(quasi, maybeop);
     if (type == "new") return cont(maybeTarget(noComma));
+    if (type == "import") return cont(expression);
     return cont();
   }
   function maybeexpression(type) {
     if (type.match(/[;\}\)\],]/)) return pass();
     return pass(expression);
   }
-  function maybeexpressionNoComma(type) {
-    if (type.match(/[;\}\)\],]/)) return pass();
-    return pass(expressionNoComma);
-  }
 
   function maybeoperatorComma(type, value) {
     if (type == ",") return cont(expression);
@@ -497,7 +553,9 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     var expr = noComma == false ? expression : expressionNoComma;
     if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
     if (type == "operator") {
-      if (/\+\+|--/.test(value)) return cont(me);
+      if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me);
+      if (isTS && value == "<" && cx.stream.match(/^([^>]|<.*?>)*>\s*\(/, false))
+        return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me);
       if (value == "?") return cont(expression, expect(":"), expr);
       return cont(expr);
     }
@@ -506,6 +564,12 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
     if (type == ".") return cont(property, me);
     if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
+    if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) }
+    if (type == "regexp") {
+      cx.state.lastType = cx.marked = "operator"
+      cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)
+      return cont(expr)
+    }
   }
   function quasi(type, value) {
     if (type != "quasi") return pass();
@@ -530,6 +594,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
   function maybeTarget(noComma) {
     return function(type) {
       if (type == ".") return cont(noComma ? targetNoComma : target);
+      else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)
       else return pass(noComma ? expressionNoComma : expression);
     };
   }
@@ -553,18 +618,25 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     } else if (type == "variable" || cx.style == "keyword") {
       cx.marked = "property";
       if (value == "get" || value == "set") return cont(getterSetter);
+      var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params
+      if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false)))
+        cx.state.fatArrowAt = cx.stream.pos + m[0].length
       return cont(afterprop);
     } else if (type == "number" || type == "string") {
       cx.marked = jsonldMode ? "property" : (cx.style + " property");
       return cont(afterprop);
     } else if (type == "jsonld-keyword") {
       return cont(afterprop);
-    } else if (type == "modifier") {
+    } else if (isTS && isModifier(value)) {
+      cx.marked = "keyword"
       return cont(objprop)
     } else if (type == "[") {
-      return cont(expression, expect("]"), afterprop);
+      return cont(expression, maybetype, expect("]"), afterprop);
     } else if (type == "spread") {
-      return cont(expression);
+      return cont(expressionNoComma, afterprop);
+    } else if (value == "*") {
+      cx.marked = "keyword";
+      return cont(objprop);
     } else if (type == ":") {
       return pass(afterprop)
     }
@@ -578,9 +650,9 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (type == ":") return cont(expressionNoComma);
     if (type == "(") return pass(functiondef);
   }
-  function commasep(what, end) {
+  function commasep(what, end, sep) {
     function proceed(type, value) {
-      if (type == ",") {
+      if (sep ? sep.indexOf(type) > -1 : type == ",") {
         var lex = cx.state.lexical;
         if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
         return cont(function(type, value) {
@@ -589,6 +661,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
         }, proceed);
       }
       if (type == end || value == end) return cont();
+      if (sep && sep.indexOf(";") > -1) return pass(what)
       return cont(expect(end));
     }
     return function(type, value) {
@@ -611,38 +684,79 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
       if (value == "?") return cont(maybetype);
     }
   }
-  function typeexpr(type) {
+  function mayberettype(type) {
-    if (type == "variable") {cx.marked = "variable-3"; return cont(afterType);}
+    if (isTS && type == ":") {
-    if (type == "{") return cont(commasep(typeprop, "}"))
+      if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr)
+      else return cont(typeexpr)
+    }
+  }
+  function isKW(_, value) {
+    if (value == "is") {
+      cx.marked = "keyword"
+      return cont()
+    }
+  }
+  function typeexpr(type, value) {
+    if (value == "keyof" || value == "typeof") {
+      cx.marked = "keyword"
+      return cont(value == "keyof" ? typeexpr : expressionNoComma)
+    }
+    if (type == "variable" || value == "void") {
+      cx.marked = "type"
+      return cont(afterType)
+    }
+    if (type == "string" || type == "number" || type == "atom") return cont(afterType);
+    if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType)
+    if (type == "{") return cont(pushlex("}"), commasep(typeprop, "}", ",;"), poplex, afterType)
     if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType)
+    if (type == "<") return cont(commasep(typeexpr, ">"), typeexpr)
   }
   function maybeReturnType(type) {
     if (type == "=>") return cont(typeexpr)
   }
-  function typeprop(type) {
+  function typeprop(type, value) {
     if (type == "variable" || cx.style == "keyword") {
       cx.marked = "property"
       return cont(typeprop)
+    } else if (value == "?") {
+      return cont(typeprop)
     } else if (type == ":") {
       return cont(typeexpr)
+    } else if (type == "[") {
+      return cont(expression, maybetype, expect("]"), typeprop)
+    } else if (type == "(") {
+      return cont(pushlex(")"), commasep(funarg, ")"), poplex, typeprop)
     }
   }
-  function typearg(type) {
+  function typearg(type, value) {
-    if (type == "variable") return cont(typearg)
+    if (type == "variable" && cx.stream.match(/^\s*[?:]/, false) || value == "?") return cont(typearg)
-    else if (type == ":") return cont(typeexpr)
+    if (type == ":") return cont(typeexpr)
+    return pass(typeexpr)
   }
   function afterType(type, value) {
-    if (value == "<") return cont(commasep(typeexpr, ">"), afterType)
+    if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+    if (value == "|" || type == "." || value == "&") return cont(typeexpr)
     if (type == "[") return cont(expect("]"), afterType)
+    if (value == "extends" || value == "implements") { cx.marked = "keyword"; return cont(typeexpr) }
   }
-  function vardef() {
+  function maybeTypeArgs(_, value) {
+    if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+  }
+  function typeparam() {
+    return pass(typeexpr, maybeTypeDefault)
+  }
+  function maybeTypeDefault(_, value) {
+    if (value == "=") return cont(typeexpr)
+  }
+  function vardef(_, value) {
+    if (value == "enum") {cx.marked = "keyword"; return cont(enumdef)}
     return pass(pattern, maybetype, maybeAssign, vardefCont);
   }
   function pattern(type, value) {
-    if (type == "modifier") return cont(pattern)
+    if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(pattern) }
     if (type == "variable") { register(value); return cont(); }
     if (type == "spread") return cont(pattern);
-    if (type == "[") return contCommasep(pattern, "]");
+    if (type == "[") return contCommasep(eltpattern, "]");
     if (type == "{") return contCommasep(proppattern, "}");
   }
   function proppattern(type, value) {
@@ -653,8 +767,12 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (type == "variable") cx.marked = "property";
     if (type == "spread") return cont(pattern);
     if (type == "}") return pass();
+    if (type == "[") return cont(expression, expect(']'), expect(':'), proppattern);
     return cont(expect(":"), pattern, maybeAssign);
   }
+  function eltpattern() {
+    return pass(pattern, maybeAssign)
+  }
   function maybeAssign(_type, value) {
     if (value == "=") return cont(expressionNoComma);
   }
@@ -664,7 +782,8 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
   function maybeelse(type, value) {
     if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
   }
-  function forspec(type) {
+  function forspec(type, value) {
+    if (value == "await") return cont(forspec);
     if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
   }
   function forspec1(type) {
@@ -688,10 +807,19 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
   function functiondef(type, value) {
     if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
     if (type == "variable") {register(value); return cont(functiondef);}
-    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, maybetype, statement, popcontext);
+    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext);
+    if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef)
   }
-  function funarg(type) {
+  function functiondecl(type, value) {
+    if (value == "*") {cx.marked = "keyword"; return cont(functiondecl);}
+    if (type == "variable") {register(value); return cont(functiondecl);}
+    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, popcontext);
+    if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondecl)
+  }
+  function funarg(type, value) {
+    if (value == "@") cont(expression, funarg)
     if (type == "spread") return cont(funarg);
+    if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(funarg); }
     return pass(pattern, maybetype, maybeAssign);
   }
   function classExpression(type, value) {
@@ -703,40 +831,56 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (type == "variable") {register(value); return cont(classNameAfter);}
   }
   function classNameAfter(type, value) {
-    if (value == "extends" || value == "implements") return cont(isTS ? typeexpr : expression, classNameAfter);
+    if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter)
+    if (value == "extends" || value == "implements" || (isTS && type == ",")) {
+      if (value == "implements") cx.marked = "keyword";
+      return cont(isTS ? typeexpr : expression, classNameAfter);
+    }
     if (type == "{") return cont(pushlex("}"), classBody, poplex);
   }
   function classBody(type, value) {
-    if (type == "variable" || cx.style == "keyword") {
+    if (type == "async" ||
-      if ((value == "static" || value == "get" || value == "set" ||
+        (type == "variable" &&
-           (isTS && (value == "public" || value == "private" || value == "protected" || value == "readonly" || value == "abstract"))) &&
+         (value == "static" || value == "get" || value == "set" || (isTS && isModifier(value))) &&
-          cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false)) {
+         cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) {
       cx.marked = "keyword";
       return cont(classBody);
     }
+    if (type == "variable" || cx.style == "keyword") {
       cx.marked = "property";
       return cont(isTS ? classfield : functiondef, classBody);
     }
+    if (type == "[")
+      return cont(expression, maybetype, expect("]"), isTS ? classfield : functiondef, classBody)
     if (value == "*") {
       cx.marked = "keyword";
       return cont(classBody);
     }
     if (type == ";") return cont(classBody);
     if (type == "}") return cont();
+    if (value == "@") return cont(expression, classBody)
   }
   function classfield(type, value) {
     if (value == "?") return cont(classfield)
     if (type == ":") return cont(typeexpr, maybeAssign)
-    return pass(functiondef)
+    if (value == "=") return cont(expressionNoComma)
+    var context = cx.state.lexical.prev, isInterface = context && context.info == "interface"
+    return pass(isInterface ? functiondecl : functiondef)
   }
-  function afterExport(_type, value) {
+  function afterExport(type, value) {
     if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
     if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
+    if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
     return pass(statement);
   }
+  function exportField(type, value) {
+    if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
+    if (type == "variable") return pass(expressionNoComma, exportField);
+  }
   function afterImport(type) {
     if (type == "string") return cont();
-    return pass(importSpec, maybeFrom);
+    if (type == "(") return pass(expression);
+    return pass(importSpec, maybeMoreImports, maybeFrom);
   }
   function importSpec(type, value) {
     if (type == "{") return contCommasep(importSpec, "}");
@@ -744,6 +888,9 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (value == "*") cx.marked = "keyword";
     return cont(maybeAs);
   }
+  function maybeMoreImports(type) {
+    if (type == ",") return cont(importSpec, maybeMoreImports)
+  }
   function maybeAs(_type, value) {
     if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
   }
@@ -754,6 +901,12 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     if (type == "]") return cont();
     return pass(commasep(expressionNoComma, "]"));
   }
+  function enumdef() {
+    return pass(pushlex("form"), pattern, expect("{"), pushlex("}"), commasep(enummember, "}"), poplex, poplex)
+  }
+  function enummember() {
+    return pass(pattern, maybeAssign);
+  }
 
   function isContinuedStatement(state, textAfter) {
     return state.lastType == "operator" || state.lastType == "," ||
@@ -761,6 +914,12 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
       /[,.]/.test(textAfter.charAt(0));
   }
 
+  function expressionAllowed(stream, state, backUp) {
+    return state.tokenize == tokenBase &&
+      /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
+      (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
+  }
+
   // Interface
 
   return {
@@ -771,7 +930,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
         cc: [],
         lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
         localVars: parserConfig.localVars,
-        context: parserConfig.localVars && {vars: parserConfig.localVars},
+        context: parserConfig.localVars && new Context(null, null, false),
         indented: basecolumn || 0
       };
       if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
@@ -812,7 +971,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
         lexical = lexical.prev;
       var type = lexical.type, closing = firstChar == type;
 
-      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
+      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0);
       else if (type == "form" && firstChar == "{") return lexical.indented;
       else if (type == "form") return lexical.indented + indentUnit;
       else if (type == "stat")
@@ -826,6 +985,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
     blockCommentStart: jsonMode ? null : "/*",
     blockCommentEnd: jsonMode ? null : "*/",
+    blockCommentContinue: jsonMode ? null : " * ",
     lineComment: jsonMode ? null : "//",
     fold: "brace",
     closeBrackets: "()[]{}''\"\"``",
@@ -835,6 +995,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     jsonMode: jsonMode,
 
     expressionAllowed: expressionAllowed,
+
     skipExpression: function(state) {
       var top = state.cc[state.cc.length - 1]
       if (top == expression || top == expressionNoComma) state.cc.pop()