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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2021-01-23 19:37:52 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-01-24 03:37:52 +0800 |
| commit | acc443b2cf0614351aeb953e393260f13f783c96 (patch) | |
| tree | 788ea95625b1a5c6972dad56a029b4b13d5b857c /lib/compress.js | |
| parent | f87e7be12c7857ec0fc772a9ea4db6d24b5e3551 (diff) | |
| download | tracifyjs-acc443b2cf0614351aeb953e393260f13f783c96.tar.gz tracifyjs-acc443b2cf0614351aeb953e393260f13f783c96.zip | |
fix corner case in `reduce_vars` (#4585)
fixes #4584
Diffstat (limited to 'lib/compress.js')
| -rw-r--r-- | lib/compress.js | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/compress.js b/lib/compress.js index 547ef574..c6ebb34c 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -786,7 +786,10 @@ merge(Compressor.prototype, { } var d = sym.definition(); d.assignments++; - if (fixed && !is_modified(compressor, tw, node, node.right, 0) && safe_to_assign(tw, d)) { + if (fixed + && !is_modified(compressor, tw, node, node.right, 0) + && !sym.in_arg + && safe_to_assign(tw, d)) { push_ref(d, sym); mark(tw, d); if (d.single_use && left instanceof AST_Destructured) d.single_use = false; @@ -809,7 +812,7 @@ merge(Compressor.prototype, { } var safe = safe_to_read(tw, d); node.right.walk(tw); - if (safe && safe_to_assign(tw, d)) { + if (safe && !left.in_arg && safe_to_assign(tw, d)) { push_ref(d, left); mark(tw, d); if (d.single_use) d.single_use = false; @@ -1117,7 +1120,7 @@ merge(Compressor.prototype, { var d = exp.definition(); d.assignments++; var fixed = d.fixed; - if (safe_to_read(tw, d) && safe_to_assign(tw, d)) { + if (safe_to_read(tw, d) && !exp.in_arg && safe_to_assign(tw, d)) { push_ref(d, exp); mark(tw, d); if (d.single_use) d.single_use = false; |