Relates to #892, update esprima to 2.7.2

Author: jrburke

build/jslib/esprima.js

@@ -1136,6 +1136,7 @@
         }
 
         if (quote !== '') {
+            index = start;
             throwUnexpectedToken();
         }
 
@@ -2728,7 +2729,7 @@
 
                 return node.finishProperty(
                     'init', key, false,
-                    new WrappingNode(keyToken).finishAssignmentPattern(key, init), false, false);
+                    new WrappingNode(keyToken).finishAssignmentPattern(key, init), false, true);
             } else if (!match(':')) {
                 params.push(keyToken);
                 return node.finishProperty('init', key, false, key, false, true);
@@ -3263,6 +3264,9 @@
             if (!strict && state.allowYield && matchKeyword('yield')) {
                 return parseNonComputedProperty();
             }
+            if (!strict && matchKeyword('let')) {
+                return node.finishIdentifier(lex().value);
+            }
             isAssignmentTarget = isBindingElement = false;
             if (matchKeyword('function')) {
                 return parseFunctionExpression();
@@ -3274,9 +3278,6 @@
             if (matchKeyword('class')) {
                 return parseClassExpression();
             }
-            if (!strict && matchKeyword('let')) {
-                return node.finishIdentifier(lex().value);
-            }
             throwUnexpectedToken(lex());
         } else if (type === Token.BooleanLiteral) {
             isAssignmentTarget = isBindingElement = false;
@@ -3854,6 +3855,7 @@
 
         argument = null;
         expr = new Node();
+        delegate = false;
 
         expectKeyword('yield');
 
@@ -4059,15 +4061,15 @@
     }
 
     function parseVariableDeclarationList(options) {
-        var list = [];
+        var opt, list;
 
-        do {
-            list.push(parseVariableDeclaration({ inFor: options.inFor }));
-            if (!match(',')) {
-                break;
-            }
+        opt = { inFor: options.inFor };
+        list = [parseVariableDeclaration(opt)];
+
+        while (match(',')) {
             lex();
-        } while (startIndex < length);
+            list.push(parseVariableDeclaration(opt));
+        }
 
         return list;
     }
@@ -4110,15 +4112,12 @@
     }
 
     function parseBindingList(kind, options) {
-        var list = [];
+        var list = [parseLexicalBinding(kind, options)];
 
-        do {
-            list.push(parseLexicalBinding(kind, options));
-            if (!match(',')) {
-                break;
-            }
+        while (match(',')) {
             lex();
-        } while (startIndex < length);
+            list.push(parseLexicalBinding(kind, options));
+        }
 
         return list;
     }
@@ -4822,7 +4821,7 @@
 
     function parseFunctionSourceElements() {
         var statement, body = [], token, directive, firstRestricted,
-            oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, oldParenthesisCount,
+            oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody,
             node = new Node();
 
         expect('{');
@@ -4856,13 +4855,11 @@
         oldInIteration = state.inIteration;
         oldInSwitch = state.inSwitch;
         oldInFunctionBody = state.inFunctionBody;
-        oldParenthesisCount = state.parenthesizedCount;
 
         state.labelSet = {};
         state.inIteration = false;
         state.inSwitch = false;
         state.inFunctionBody = true;
-        state.parenthesizedCount = 0;
 
         while (startIndex < length) {
             if (match('}')) {
@@ -4877,7 +4874,6 @@
         state.inIteration = oldInIteration;
         state.inSwitch = oldInSwitch;
         state.inFunctionBody = oldInFunctionBody;
-        state.parenthesizedCount = oldParenthesisCount;
 
         return node.finishBlockStatement(body);
     }
@@ -5711,7 +5707,7 @@
     }
 
     // Sync with *.json manifests.
-    exports.version = '2.7.0';
+    exports.version = '2.7.2';
 
     exports.tokenize = tokenize;