diff options
| -rw-r--r-- | lib/compress.js | 15 | ||||
| -rw-r--r-- | test/compress/switch.js | 26 |
2 files changed, 34 insertions, 7 deletions
diff --git a/lib/compress.js b/lib/compress.js index 8350ba25..9ed368c7 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -2560,10 +2560,9 @@ merge(Compressor.prototype, { fallthrough = !aborts(exact_match); } while (i < len) extract_declarations_from_unreachable_code(compressor, self.body[i++], decl); - if (body.length == 0) return make_node(AST_BlockStatement, self, { - body: decl - }).optimize(compressor); - body[0].body = decl.concat(body[0].body); + if (body.length > 0) { + body[0].body = decl.concat(body[0].body); + } self.body = body; } while (branch = self.body[self.body.length - 1]) { @@ -2575,9 +2574,11 @@ merge(Compressor.prototype, { && branch.expression.has_side_effects(compressor)) break; self.body.pop(); } - if (compressor.option("conditionals") && self.body.length == 0) { - return make_node(AST_SimpleStatement, self, { - body: self.expression + if (decl && self.body.length == 0) { + return make_node(AST_BlockStatement, self, { + body: decl.concat(make_node(AST_SimpleStatement, self.expression, { + body: self.expression + })) }).optimize(compressor); } if (body && body.length == 1 && (body[0] === exact_match || body[0] === default_branch)) { diff --git a/test/compress/switch.js b/test/compress/switch.js index 2025d91b..654a838b 100644 --- a/test/compress/switch.js +++ b/test/compress/switch.js @@ -553,3 +553,29 @@ issue_1680_2: { } expect_stdout: true } + +issue_1690_1: { + options = { + dead_code: true, + } + input: { + switch (console.log("PASS")) {} + } + expect: { + console.log("PASS"); + } + expect_stdout: "PASS" +} + +issue_1690_2: { + options = { + dead_code: false, + } + input: { + switch (console.log("PASS")) {} + } + expect: { + switch (console.log("PASS")) {} + } + expect_stdout: "PASS" +} |