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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2021-02-27 20:41:21 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-02-28 04:41:21 +0800 |
| commit | c549ee89b9a0641ea78f57472168963811c7e111 (patch) | |
| tree | 8dc88b6d278e2f49c01ed6532dca0ff417bab9be /lib | |
| parent | 7924a3ae8b7bb69c246215618768eda04987b91d (diff) | |
| download | tracifyjs-c549ee89b9a0641ea78f57472168963811c7e111.tar.gz tracifyjs-c549ee89b9a0641ea78f57472168963811c7e111.zip | |
fix corner case `reduce_vars` (#4706)
fixes #4705
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compress.js | 52 |
1 files changed, 28 insertions, 24 deletions
diff --git a/lib/compress.js b/lib/compress.js index 101fdb4e..ba7ab4a0 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -938,31 +938,35 @@ merge(Compressor.prototype, { node.variables.each(function(def) { reset_def(tw, compressor, def); }); - if (!node.name) return; - var d = node.name.definition(); - var parent = tw.parent(); - if (parent instanceof AST_ExportDeclaration || parent instanceof AST_ExportDefault) d.single_use = false; - if (safe_to_assign(tw, d, true)) { - mark(tw, d); - tw.loop_ids[d.id] = tw.in_loop; - d.fixed = function() { - return node; - }; - d.fixed.assigns = [ node ]; - if (!is_safe_lexical(d)) d.single_use = false; - } else { - d.fixed = false; - } - }); - def(AST_ClassField, function(tw) { - var node = this; - if (node.static) return; - if (node.key instanceof AST_Node) node.key.walk(tw); - if (node.value) { - push(tw); - node.value.walk(tw); - pop(tw); + if (node.extends) node.extends.walk(tw); + if (node.name) { + var d = node.name.definition(); + var parent = tw.parent(); + if (parent instanceof AST_ExportDeclaration || parent instanceof AST_ExportDefault) d.single_use = false; + if (safe_to_assign(tw, d, true)) { + mark(tw, d); + tw.loop_ids[d.id] = tw.in_loop; + d.fixed = function() { + return node; + }; + d.fixed.assigns = [ node ]; + if (!is_safe_lexical(d)) d.single_use = false; + } else { + d.fixed = false; + } } + node.properties.filter(function(prop) { + if (prop.key instanceof AST_Node) prop.key.walk(tw); + return prop.value; + }).forEach(function(prop) { + if (prop.static) { + prop.value.walk(tw); + } else { + push(tw); + prop.value.walk(tw); + pop(tw); + } + }); return true; }); def(AST_Conditional, function(tw) { |