diff options
| -rw-r--r-- | lib/compress.js | 1 | ||||
| -rw-r--r-- | test/compress/collapse_vars.js | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/lib/compress.js b/lib/compress.js index 7b871e41..a9203ce9 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -1483,6 +1483,7 @@ merge(Compressor.prototype, { function is_lhs_read_only(lhs, compressor) { if (lhs instanceof AST_ObjectIdentity) return true; if (lhs instanceof AST_PropAccess) { + if (lhs.property == "__proto__") return true; lhs = lhs.expression; if (lhs instanceof AST_SymbolRef) { if (lhs.is_immutable()) return false; diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js index 4834dd7d..85006703 100644 --- a/test/compress/collapse_vars.js +++ b/test/compress/collapse_vars.js @@ -9151,3 +9151,23 @@ issue_4910: { } expect_stdout: "bar foo" } + +issue_4914: { + options = { + collapse_vars: true, + pure_getters: "strict", + } + input: { + console.log(typeof function f() { + f.__proto__ = 42; + return f.__proto__; + }()); + } + expect: { + console.log(typeof function f() { + f.__proto__ = 42; + return f.__proto__; + }()); + } + expect_stdout: "function" +} |