Imported Upstream version 4.7.2

install/ui/util/uglifyjs/lib/squeeze-more.js

@@ -1,78 +0,0 @@
-var jsp = require("./parse-js"),
-    pro = require("./process"),
-    slice = jsp.slice,
-    member = jsp.member,
-    curry = jsp.curry,
-    MAP = pro.MAP,
-    PRECEDENCE = jsp.PRECEDENCE,
-    OPERATORS = jsp.OPERATORS;
-
-function ast_squeeze_more(ast) {
-    var w = pro.ast_walker(), walk = w.walk, scope;
-    function with_scope(s, cont) {
-        var save = scope, ret;
-        scope = s;
-        ret = cont();
-        scope = save;
-        return ret;
-    };
-    function _lambda(name, args, body) {
-        return [ this[0], name, args, with_scope(body.scope, curry(MAP, body, walk)) ];
-    };
-    return w.with_walkers({
-        "toplevel": function(body) {
-            return [ this[0], with_scope(this.scope, curry(MAP, body, walk)) ];
-        },
-        "function": _lambda,
-        "defun": _lambda,
-        "new": function(ctor, args) {
-            if (ctor[0] == "name") {
-                if (ctor[1] == "Array" && !scope.has("Array")) {
-                    if (args.length != 1) {
-                        return [ "array", args ];
-                    } else {
-                        return walk([ "call", [ "name", "Array" ], args ]);
-                    }
-                } else if (ctor[1] == "Object" && !scope.has("Object")) {
-                    if (!args.length) {
-                        return [ "object", [] ];
-                    } else {
-                        return walk([ "call", [ "name", "Object" ], args ]);
-                    }
-                } else if ((ctor[1] == "RegExp" || ctor[1] == "Function" || ctor[1] == "Error") && !scope.has(ctor[1])) {
-                    return walk([ "call", [ "name", ctor[1] ], args]);
-                }
-            }
-        },
-        "call": function(expr, args) {
-            if (expr[0] == "dot" && expr[1][0] == "string" && args.length == 1
-                && (args[0][1] > 0 && expr[2] == "substring" || expr[2] == "substr")) {
-                return [ "call", [ "dot", expr[1], "slice"], args];
-            }
-            if (expr[0] == "dot" && expr[2] == "toString" && args.length == 0) {
-                // foo.toString()  ==>  foo+""
-                if (expr[1][0] == "string") return expr[1];
-                return [ "binary", "+", expr[1], [ "string", "" ]];
-            }
-            if (expr[0] == "name") {
-                if (expr[1] == "Array" && args.length != 1 && !scope.has("Array")) {
-                    return [ "array", args ];
-                }
-                if (expr[1] == "Object" && !args.length && !scope.has("Object")) {
-                    return [ "object", [] ];
-                }
-                if (expr[1] == "String" && !scope.has("String")) {
-                    return [ "binary", "+", args[0], [ "string", "" ]];
-                }
-            }
-        }
-    }, function() {
-        return walk(pro.ast_add_scope(ast));
-    });
-};
-
-exports.ast_squeeze_more = ast_squeeze_more;
-
-// Local variables:
-// js-indent-level: 4
-// End: