diff options
| -rw-r--r-- | lib/compress.js | 14 | ||||
| -rw-r--r-- | test/compress/issue-281.js | 50 |
2 files changed, 58 insertions, 6 deletions
diff --git a/lib/compress.js b/lib/compress.js index 969acd61..e3846c31 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -3183,19 +3183,21 @@ merge(Compressor.prototype, { if (body) { var fn = exp.clone(); fn.argnames = []; - fn.body = [ - make_node(AST_Var, self, { + fn.body = []; + if (exp.argnames.length > 0) { + fn.body.push(make_node(AST_Var, self, { definitions: exp.argnames.map(function(sym, i) { + var arg = self.args[i]; return make_node(AST_VarDef, sym, { name: sym, - value: self.args[i] || make_node(AST_Undefined, self) + value: arg ? arg.clone(true) : make_node(AST_Undefined, self) }); }) - }) - ]; + })); + } if (self.args.length > exp.argnames.length) { fn.body.push(make_node(AST_SimpleStatement, self, { - body: make_sequence(self, self.args.slice(exp.argnames.length)) + body: make_sequence(self, self.args.slice(exp.argnames.length)).clone(true) })); } fn.body.push(make_node(AST_Return, self, { diff --git a/test/compress/issue-281.js b/test/compress/issue-281.js index 6b1b4b40..7a6c03bc 100644 --- a/test/compress/issue-281.js +++ b/test/compress/issue-281.js @@ -431,3 +431,53 @@ pure_annotation: { } expect_exact: "" } + +drop_fargs: { + options = { + cascade: true, + inline: true, + keep_fargs: false, + side_effects: true, + unused: true, + } + input: { + var a = 1; + !function(a_1) { + a++; + }(a++ + (a && a.var)); + console.log(a); + } + expect: { + var a = 1; + !function() { + a++; + }(++a && a.var); + console.log(a); + } + expect_stdout: "3" +} + +keep_fargs: { + options = { + cascade: true, + inline: true, + keep_fargs: true, + side_effects: true, + unused: true, + } + input: { + var a = 1; + !function(a_1) { + a++; + }(a++ + (a && a.var)); + console.log(a); + } + expect: { + var a = 1; + !function(a_1) { + a++; + }(++a && a.var); + console.log(a); + } + expect_stdout: "3" +} |