removed some unused variables

diff --git a/lib/compress.js b/lib/compress.js
index 10c1d22..fcf022e 100644 (file)
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -210,7 +210,6 @@ merge(Compressor.prototype, {
         function handle_if_return(statements, compressor) {
             var self = compressor.self();
             var in_lambda = self instanceof AST_Lambda;
-            var last = statements.length - 1;
             var ret = [];
             loop: for (var i = statements.length; --i >= 0;) {
                 var stat = statements[i];
@@ -1378,8 +1377,8 @@ merge(Compressor.prototype, {
         }
         if (compressor.option("booleans") && compressor.in_boolean_context()) switch (self.operator) {
           case "&&":
-            var ll = self.left.evaluate(compressor), left = ll[0];
-            var rr = self.right.evaluate(compressor), right = rr[0];
+            var ll = self.left.evaluate(compressor);
+            var rr = self.right.evaluate(compressor);
             if ((ll.length > 1 && !ll[1]) || (rr.length > 1 && !rr[1])) {
                 compressor.warn("Boolean && always false [{file}:{line},{col}]", self.start);
                 return make_node(AST_False, self);
@@ -1392,8 +1391,8 @@ merge(Compressor.prototype, {
             }
             break;
           case "||":
-            var ll = self.left.evaluate(compressor), left = ll[0];
-            var rr = self.right.evaluate(compressor), right = rr[0];
+            var ll = self.left.evaluate(compressor);
+            var rr = self.right.evaluate(compressor);
             if ((ll.length > 1 && ll[1]) || (rr.length > 1 && rr[1])) {
                 compressor.warn("Boolean || always true [{file}:{line},{col}]", self.start);
                 return make_node(AST_True, self);
@@ -1406,8 +1405,8 @@ merge(Compressor.prototype, {
             }
             break;
           case "+":
-            var ll = self.left.evaluate(compressor), left = ll[0];
-            var rr = self.right.evaluate(compressor), right = rr[0];
+            var ll = self.left.evaluate(compressor);
+            var rr = self.right.evaluate(compressor);
             if ((ll.length > 1 && ll[0] instanceof AST_String && ll[1]) ||
                 (rr.length > 1 && rr[0] instanceof AST_String && rr[1])) {
                 compressor.warn("+ in boolean context always true [{file}:{line},{col}]", self.start);

diff --git a/lib/parse.js b/lib/parse.js
index 3bf8d29..10a0f1a 100644 (file)
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -304,10 +304,6 @@ function tokenizer($TEXT, filename) {
         return ch;
     };
 
-    function eof() {
-        return !S.peek();
-    };
-
     function find(what, signal_eof) {
         var pos = S.text.indexOf(what, S.pos);
         if (signal_eof && pos == -1) throw EX_EOF;
@@ -909,7 +905,7 @@ function parse($TEXT, options) {
         }
         expect(":");
         S.labels.push(label);
-        var start = S.token, stat = statement();
+        var stat = statement();
         S.labels.pop();
         return new AST_LabeledStatement({ body: stat, label: label });
     };
@@ -1036,7 +1032,7 @@ function parse($TEXT, options) {
 
     var switch_body_ = curry(in_loop, function(){
         expect("{");
-        var a = [], cur = null, branch = null, start = S.token;
+        var a = [], cur = null, branch = null;
         while (!is("punc", "}")) {
             if (is("eof")) unexpected();
             if (is("keyword", "case")) {

diff --git a/lib/scope.js b/lib/scope.js
index 54839c4..5f4a64a 100644 (file)
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -243,7 +243,7 @@ AST_Lambda.DEFMETHOD("init_scope_vars", function(){
 AST_SymbolRef.DEFMETHOD("reference", function() {
     var def = this.definition();
     def.references.push(this);
-    var orig_scope = def.scope, s = this.scope;
+    var s = this.scope;
     while (s) {
         push_uniq(s.enclosed, def);
         s = s.parent_scope;