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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2020-05-10 09:35:03 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-05-10 16:35:03 +0800 |
| commit | 33f3b0c1d9654e137b54802afbfb6d8e70c8cbd6 (patch) | |
| tree | b12bd4c6ccecbd4271c98afc22e6537dfcc0ef38 /lib/compress.js | |
| parent | abb8ae02a55b3e3585685362cbae99c6b7a9a380 (diff) | |
| download | tracifyjs-33f3b0c1d9654e137b54802afbfb6d8e70c8cbd6.tar.gz tracifyjs-33f3b0c1d9654e137b54802afbfb6d8e70c8cbd6.zip | |
fix corner case in `reduce_vars` (#3867)
fixes #3866
Diffstat (limited to 'lib/compress.js')
| -rw-r--r-- | lib/compress.js | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/compress.js b/lib/compress.js index fb4836bf..6e0d36a7 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -577,9 +577,10 @@ merge(Compressor.prototype, { sym.fixed = d.fixed = eq ? function() { return node.right; } : function() { - return make_node(AST_Binary, node, { + var value = fixed instanceof AST_Node ? fixed : fixed(); + return value && make_node(AST_Binary, node, { operator: node.operator.slice(0, -1), - left: fixed instanceof AST_Node ? fixed : fixed(), + left: value, right: node.right }); }; @@ -858,11 +859,12 @@ merge(Compressor.prototype, { var fixed = d.fixed; if (!fixed) return; exp.fixed = d.fixed = function() { - return make_node(AST_Binary, node, { + var value = fixed instanceof AST_Node ? fixed : fixed(); + return value && make_node(AST_Binary, node, { operator: node.operator.slice(0, -1), left: make_node(AST_UnaryPrefix, node, { operator: "+", - expression: fixed instanceof AST_Node ? fixed : fixed() + expression: value }), right: make_node(AST_Number, node, { value: 1 |