diff options
Diffstat (limited to 'tools/eliminator/node_modules/uglify-js/tmp')
4 files changed, 284 insertions, 0 deletions
diff --git a/tools/eliminator/node_modules/uglify-js/tmp/hoist.js b/tools/eliminator/node_modules/uglify-js/tmp/hoist.js new file mode 100644 index 00000000..4bf2b94d --- /dev/null +++ b/tools/eliminator/node_modules/uglify-js/tmp/hoist.js @@ -0,0 +1,33 @@ +function foo(arg1, arg2, arg3, arg4, arg5, arg6) { + var a = 5; + { + var d = 10, mak = 20, buz = 30; + var q = buz * 2; + } + if (moo) { + var a, b, c; + } + for (var arg1 = 0, d = 20; arg1 < 10; ++arg1) + console.log(arg3); + for (var i in mak) {} + for (j in d) {} + var d; + + function test() { + + }; + + //test(); + + (function moo(first, second){ + console.log(first); + })(1); + + (function moo(first, second){ + console.log(moo()); + })(1); +} + + +var foo; +var bar; diff --git a/tools/eliminator/node_modules/uglify-js/tmp/instrument.js b/tools/eliminator/node_modules/uglify-js/tmp/instrument.js new file mode 100644 index 00000000..c6a9d798 --- /dev/null +++ b/tools/eliminator/node_modules/uglify-js/tmp/instrument.js @@ -0,0 +1,97 @@ +// sample on how to use the parser and walker API to instrument some code + +var jsp = require("uglify-js").parser; +var pro = require("uglify-js").uglify; + +function instrument(code) { + var ast = jsp.parse(code, false, true); // true for the third arg specifies that we want + // to have start/end tokens embedded in the + // statements + var w = pro.ast_walker(); + + // we're gonna need this to push elements that we're currently looking at, to avoid + // endless recursion. + var analyzing = []; + function do_stat() { + var ret; + if (this[0].start && analyzing.indexOf(this) < 0) { + // without the `analyzing' hack, w.walk(this) would re-enter here leading + // to infinite recursion + analyzing.push(this); + ret = [ "splice", // XXX: "block" is safer + [ [ "stat", + [ "call", [ "name", "trace" ], + [ [ "string", this[0].toString() ], + [ "num", this[0].start.line ], + [ "num", this[0].start.col ], + [ "num", this[0].end.line ], + [ "num", this[0].end.col ]]]], + w.walk(this) ]]; + analyzing.pop(this); + } + return ret; + }; + var new_ast = w.with_walkers({ + "stat" : do_stat, + "label" : do_stat, + "break" : do_stat, + "continue" : do_stat, + "debugger" : do_stat, + "var" : do_stat, + "const" : do_stat, + "return" : do_stat, + "throw" : do_stat, + "try" : do_stat, + "defun" : do_stat, + "if" : do_stat, + "while" : do_stat, + "do" : do_stat, + "for" : do_stat, + "for-in" : do_stat, + "switch" : do_stat, + "with" : do_stat + }, function(){ + return w.walk(ast); + }); + return pro.gen_code(new_ast, { beautify: true }); +} + + + + +////// test code follows. + +var code = instrument(test.toString()); +console.log(code); + +function test() { + // simple stats + a = 5; + c += a + b; + "foo"; + + // var + var foo = 5; + const bar = 6, baz = 7; + + // switch block. note we can't track case lines the same way. + switch ("foo") { + case "foo": + return 1; + case "bar": + return 2; + } + + // for/for in + for (var i = 0; i < 5; ++i) { + console.log("Hello " + i); + } + for (var i in [ 1, 2, 3]) { + console.log(i); + } + + // note however that the following is broken. I guess we + // should add the block brackets in this case... + for (var i = 0; i < 5; ++i) + console.log("foo"); +} diff --git a/tools/eliminator/node_modules/uglify-js/tmp/instrument2.js b/tools/eliminator/node_modules/uglify-js/tmp/instrument2.js new file mode 100644 index 00000000..6aee5f3f --- /dev/null +++ b/tools/eliminator/node_modules/uglify-js/tmp/instrument2.js @@ -0,0 +1,138 @@ +// sample on how to use the parser and walker API to instrument some code + +var jsp = require("uglify-js").parser; +var pro = require("uglify-js").uglify; + +function instrument(code) { + var ast = jsp.parse(code, false, true); // true for the third arg specifies that we want + // to have start/end tokens embedded in the + // statements + var w = pro.ast_walker(); + + function trace (line, comment) { + var code = pro.gen_code(line, { beautify: true }); + var data = line[0] + + var args = [] + if (!comment) comment = "" + if (typeof data === "object") { + code = code.split(/\n/).shift() + args = [ [ "string", data.toString() ], + [ "string", code ], + [ "num", data.start.line ], + [ "num", data.start.col ], + [ "num", data.end.line ], + [ "num", data.end.col ]] + } else { + args = [ [ "string", data ], + [ "string", code ]] + + } + return [ "call", [ "name", "trace" ], args ]; + } + + // we're gonna need this to push elements that we're currently looking at, to avoid + // endless recursion. + var analyzing = []; + function do_stat() { + var ret; + if (this[0].start && analyzing.indexOf(this) < 0) { + // without the `analyzing' hack, w.walk(this) would re-enter here leading + // to infinite recursion + analyzing.push(this); + ret = [ "splice", + [ [ "stat", trace(this) ], + w.walk(this) ]]; + analyzing.pop(this); + } + return ret; + } + + function do_cond(c, t, f) { + return [ this[0], w.walk(c), + ["seq", trace(t), w.walk(t) ], + ["seq", trace(f), w.walk(f) ]]; + } + + function do_binary(c, l, r) { + if (c !== "&&" && c !== "||") { + return [this[0], c, w.walk(l), w.walk(r)]; + } + return [ this[0], c, + ["seq", trace(l), w.walk(l) ], + ["seq", trace(r), w.walk(r) ]]; + } + + var new_ast = w.with_walkers({ + "stat" : do_stat, + "label" : do_stat, + "break" : do_stat, + "continue" : do_stat, + "debugger" : do_stat, + "var" : do_stat, + "const" : do_stat, + "return" : do_stat, + "throw" : do_stat, + "try" : do_stat, + "defun" : do_stat, + "if" : do_stat, + "while" : do_stat, + "do" : do_stat, + "for" : do_stat, + "for-in" : do_stat, + "switch" : do_stat, + "with" : do_stat, + "conditional" : do_cond, + "binary" : do_binary + }, function(){ + return w.walk(ast); + }); + return pro.gen_code(new_ast, { beautify: true }); +} + + +////// test code follows. + +var code = instrument(test.toString()); +console.log(code); + +function test() { + // simple stats + a = 5; + c += a + b; + "foo"; + + // var + var foo = 5; + const bar = 6, baz = 7; + + // switch block. note we can't track case lines the same way. + switch ("foo") { + case "foo": + return 1; + case "bar": + return 2; + } + + // for/for in + for (var i = 0; i < 5; ++i) { + console.log("Hello " + i); + } + for (var i in [ 1, 2, 3]) { + console.log(i); + } + + for (var i = 0; i < 5; ++i) + console.log("foo"); + + for (var i = 0; i < 5; ++i) { + console.log("foo"); + } + + var k = plurp() ? 1 : 0; + var x = a ? doX(y) && goZoo("zoo") + : b ? blerg({ x: y }) + : null; + + var x = X || Y; +} diff --git a/tools/eliminator/node_modules/uglify-js/tmp/test.js b/tools/eliminator/node_modules/uglify-js/tmp/test.js new file mode 100755 index 00000000..46842f60 --- /dev/null +++ b/tools/eliminator/node_modules/uglify-js/tmp/test.js @@ -0,0 +1,16 @@ +#! /usr/bin/env node + +global.sys = require(/^v0\.[012]/.test(process.version) ? "sys" : "util"); +var fs = require("fs"); +var uglify = require("uglify-js"), // symlink ~/.node_libraries/uglify-js.js to ../uglify-js.js + jsp = uglify.parser, + pro = uglify.uglify; + +var code = fs.readFileSync("hoist.js", "utf8"); +var ast = jsp.parse(code); + +ast = pro.ast_lift_variables(ast); + +console.log(pro.gen_code(ast, { + beautify: true +})); |