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node_modules/uglify-js/lib/mozilla-ast.js

@@ -43,11 +43,9 @@
 
 "use strict";
 
-(function(){
-
-    var normalize_directives = function(body) {
+(function() {
+    function normalize_directives(body) {
         var in_directive = true;
-
         for (var i = 0; i < body.length; i++) {
             if (in_directive && body[i] instanceof AST_Statement && body[i].body instanceof AST_String) {
                 body[i] = new AST_Directive({
@@ -59,9 +57,8 @@
                 in_directive = false;
             }
         }
-
         return body;
-    };
+    }
 
     var MOZ_TO_ME = {
         Program: function(M) {
@@ -129,7 +126,7 @@
             return new AST_Array({
                 start    : my_start_token(M),
                 end      : my_end_token(M),
-                elements : M.elements.map(function(elem){
+                elements : M.elements.map(function(elem) {
                     return elem === null ? new AST_Hole() : from_moz(elem);
                 })
             });
@@ -138,14 +135,18 @@
             return new AST_Object({
                 start      : my_start_token(M),
                 end        : my_end_token(M),
-                properties : M.properties.map(function(prop){
+                properties : M.properties.map(function(prop) {
                     prop.type = "Property";
                     return from_moz(prop)
                 })
             });
         },
         SequenceExpression: function(M) {
-            return AST_Seq.from_array(M.expressions.map(from_moz));
+            return new AST_Sequence({
+                start      : my_start_token(M),
+                end        : my_end_token(M),
+                expressions: M.expressions.map(from_moz)
+            });
         },
         MemberExpression: function(M) {
             return new (M.computed ? AST_Sub : AST_Dot)({
@@ -164,7 +165,7 @@
             });
         },
         VariableDeclaration: function(M) {
-            return new (M.kind === "const" ? AST_Const : AST_Var)({
+            return new AST_Var({
                 start       : my_start_token(M),
                 end         : my_end_token(M),
                 definitions : M.declarations.map(from_moz)
@@ -176,6 +177,17 @@
                 end    : my_end_token(M)
             };
             if (val === null) return new AST_Null(args);
+            var rx = M.regex;
+            if (rx && rx.pattern) {
+                // RegExpLiteral as per ESTree AST spec
+                args.value = new RegExp(rx.pattern, rx.flags);
+                args.value.raw_source = rx.pattern;
+                return new AST_RegExp(args);
+            } else if (rx) {
+                // support legacy RegExp
+                args.value = M.regex && M.raw ? M.raw : val;
+                return new AST_RegExp(args);
+            }
             switch (typeof val) {
               case "string":
                 args.value = val;
@@ -185,22 +197,12 @@
                 return new AST_Number(args);
               case "boolean":
                 return new (val ? AST_True : AST_False)(args);
-              default:
-                var rx = M.regex;
-                if (rx && rx.pattern) {
-                    // RegExpLiteral as per ESTree AST spec
-                    args.value = new RegExp(rx.pattern, rx.flags).toString();
-                } else {
-                    // support legacy RegExp
-                    args.value = M.regex && M.raw ? M.raw : val;
-                }
-                return new AST_RegExp(args);
             }
         },
         Identifier: function(M) {
             var p = FROM_MOZ_STACK[FROM_MOZ_STACK.length - 2];
             return new (  p.type == "LabeledStatement" ? AST_Label
-                        : p.type == "VariableDeclarator" && p.id === M ? (p.kind == "const" ? AST_SymbolConst : AST_SymbolVar)
+                        : p.type == "VariableDeclarator" && p.id === M ? AST_SymbolVar
                         : p.type == "FunctionExpression" ? (p.id === M ? AST_SymbolLambda : AST_SymbolFunarg)
                         : p.type == "FunctionDeclaration" ? (p.id === M ? AST_SymbolDefun : AST_SymbolFunarg)
                         : p.type == "CatchClause" ? AST_SymbolCatch
@@ -320,15 +322,15 @@
     def_to_moz(AST_Definitions, function To_Moz_VariableDeclaration(M) {
         return {
             type: "VariableDeclaration",
-            kind: M instanceof AST_Const ? "const" : "var",
+            kind: "var",
             declarations: M.definitions.map(to_moz)
         };
     });
 
-    def_to_moz(AST_Seq, function To_Moz_SequenceExpression(M) {
+    def_to_moz(AST_Sequence, function To_Moz_SequenceExpression(M) {
         return {
             type: "SequenceExpression",
-            expressions: M.to_array().map(to_moz)
+            expressions: M.expressions.map(to_moz)
         };
     });
 
@@ -406,14 +408,15 @@
     });
 
     def_to_moz(AST_RegExp, function To_Moz_RegExpLiteral(M) {
-        var value = M.value;
+        var flags = M.value.toString().match(/[gimuy]*$/)[0];
+        var value = "/" + M.value.raw_source + "/" + flags;
         return {
             type: "Literal",
             value: value,
-            raw: value.toString(),
+            raw: value,
             regex: {
-                pattern: value.source,
-                flags: value.toString().match(/[gimuy]*$/)[0]
+                pattern: M.value.raw_source,
+                flags: flags
             }
         };
     });
@@ -474,7 +477,7 @@
             endpos  : range ? range[0] : moznode.start,
             raw     : raw_token(moznode),
         });
-    };
+    }
 
     function my_end_token(moznode) {
         var loc = moznode.loc, end = loc && loc.end;
@@ -489,7 +492,7 @@
             endpos  : range ? range[1] : moznode.end,
             raw     : raw_token(moznode),
         });
-    };
+    }
 
     function map(moztype, mytype, propmap) {
         var moz_to_me = "function From_Moz_" + moztype + "(M){\n";
@@ -501,7 +504,7 @@
         me_to_moz += "return {\n" +
             "type: " + JSON.stringify(moztype);
 
-        if (propmap) propmap.split(/\s*,\s*/).forEach(function(prop){
+        if (propmap) propmap.split(/\s*,\s*/).forEach(function(prop) {
             var m = /([a-z0-9$_]+)(=|@|>|%)([a-z0-9$_]+)/i.exec(prop);
             if (!m) throw new Error("Can't understand property map: " + prop);
             var moz = m[1], how = m[2], my = m[3];
@@ -544,7 +547,7 @@
         );
         MOZ_TO_ME[moztype] = moz_to_me;
         def_to_moz(mytype, me_to_moz);
-    };
+    }
 
     var FROM_MOZ_STACK = null;
 
@@ -553,13 +556,28 @@
         var ret = node != null ? MOZ_TO_ME[node.type](node) : null;
         FROM_MOZ_STACK.pop();
         return ret;
-    };
+    }
 
-    AST_Node.from_mozilla_ast = function(node){
+    AST_Node.from_mozilla_ast = function(node) {
         var save_stack = FROM_MOZ_STACK;
         FROM_MOZ_STACK = [];
         var ast = from_moz(node);
         FROM_MOZ_STACK = save_stack;
+        ast.walk(new TreeWalker(function(node) {
+            if (node instanceof AST_LabelRef) {
+                for (var level = 0, parent; parent = this.parent(level); level++) {
+                    if (parent instanceof AST_Scope) break;
+                    if (parent instanceof AST_LabeledStatement && parent.label.name == node.name) {
+                        node.thedef = parent.label;
+                        break;
+                    }
+                }
+                if (!node.thedef) {
+                    var s = node.start;
+                    js_error("Undefined label " + node.name, s.file, s.line, s.col, s.pos);
+                }
+            }
+        }));
         return ast;
     };
 
@@ -579,24 +597,24 @@
             }
         }
         return moznode;
-    };
+    }
 
     function def_to_moz(mytype, handler) {
         mytype.DEFMETHOD("to_mozilla_ast", function() {
             return set_moz_loc(this, handler(this));
         });
-    };
+    }
 
     function to_moz(node) {
         return node != null ? node.to_mozilla_ast() : null;
-    };
+    }
 
     function to_moz_block(node) {
         return {
             type: "BlockStatement",
             body: node.body.map(to_moz)
         };
-    };
+    }
 
     function to_moz_scope(type, node) {
         var body = node.body.map(to_moz);
@@ -607,5 +625,5 @@
             type: type,
             body: body
         };
-    };
+    }
 })();