diff options
| -rw-r--r-- | lib/compress.js | 25 | ||||
| -rw-r--r-- | test/compress/evaluate.js | 28 |
2 files changed, 53 insertions, 0 deletions
diff --git a/lib/compress.js b/lib/compress.js index 32a4d603..a928d7b7 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -1665,6 +1665,26 @@ merge(Compressor.prototype, { } throw def; }); + def(AST_Call, function(compressor){ + var exp = this.expression; + if (compressor.option("unsafe") && exp instanceof AST_PropAccess) { + var key = exp.property; + if (key instanceof AST_Node) { + key = ev(key, compressor); + } + var val = ev(exp.expression, compressor); + var fn = val[key]; + if (typeof fn == "function") { + return fn.apply(val, this.args.map(function(arg) { + return ev(arg, compressor); + })); + } + } + throw def; + }); + def(AST_New, function(compressor){ + throw def; + }); })(function(node, func){ node.DEFMETHOD("_eval", func); }); @@ -3144,6 +3164,11 @@ merge(Compressor.prototype, { && is_iife_call(self)) { return self.negate(compressor, true); } + var ev = self.evaluate(compressor); + if (ev !== self) { + ev = make_node_from_constant(ev, self).optimize(compressor); + return best_of(compressor, ev, self); + } return self; }); diff --git a/test/compress/evaluate.js b/test/compress/evaluate.js index a1e3d0be..020d7cf3 100644 --- a/test/compress/evaluate.js +++ b/test/compress/evaluate.js @@ -1037,3 +1037,31 @@ issue_1964_2: { } expect_stdout: "b" } + +array_slice_index: { + options = { + evaluate: true, + unsafe: true, + } + input: { + console.log([1,2,3].slice(1)[1]); + } + expect: { + console.log(3); + } + expect_stdout: "3" +} + +string_charCodeAt: { + options = { + evaluate: true, + unsafe: true, + } + input: { + console.log("foo".charCodeAt("bar".length)); + } + expect: { + console.log(NaN); + } + expect_stdout: "NaN" +} |