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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2020-12-22 23:01:50 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-12-23 07:01:50 +0800 |
| commit | cb4a02949e14a8ffad88c327204f016407218ce9 (patch) | |
| tree | edac127ab6f870595e7146f5b17c16f2eca9c870 /lib/compress.js | |
| parent | f85a206b9ed5b39726a2da39680056c09d3f9687 (diff) | |
| download | tracifyjs-cb4a02949e14a8ffad88c327204f016407218ce9.tar.gz tracifyjs-cb4a02949e14a8ffad88c327204f016407218ce9.zip | |
fix corner case with `NaN` (#4437)
fixes #4436
Diffstat (limited to 'lib/compress.js')
| -rw-r--r-- | lib/compress.js | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/lib/compress.js b/lib/compress.js index 81fe8866..38342326 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -9297,10 +9297,9 @@ merge(Compressor.prototype, { OPT(AST_Infinity, function(self, compressor) { var lhs = is_lhs(compressor.self(), compressor.parent()); if (lhs && is_atomic(lhs, self)) return self; - if (compressor.option("keep_infinity") - && !(lhs && !is_atomic(lhs, self)) - && !find_scope(compressor).find_variable("Infinity")) + if (compressor.option("keep_infinity") && !lhs && !find_scope(compressor).find_variable("Infinity")) { return self; + } return make_node(AST_Binary, self, { operator: "/", left: make_node(AST_Number, self, { @@ -9314,18 +9313,17 @@ merge(Compressor.prototype, { OPT(AST_NaN, function(self, compressor) { var lhs = is_lhs(compressor.self(), compressor.parent()); - if (lhs && !is_atomic(lhs, self) || find_scope(compressor).find_variable("NaN")) { - return make_node(AST_Binary, self, { - operator: "/", - left: make_node(AST_Number, self, { - value: 0 - }), - right: make_node(AST_Number, self, { - value: 0 - }) - }); - } - return self; + if (lhs && is_atomic(lhs, self)) return self; + if (!lhs && !find_scope(compressor).find_variable("NaN")) return self; + return make_node(AST_Binary, self, { + operator: "/", + left: make_node(AST_Number, self, { + value: 0 + }), + right: make_node(AST_Number, self, { + value: 0 + }) + }); }); function is_reachable(self, defs) { |