Inheritance Order Reversal On Storage End Warning Bug

A bug in the Solidity compiler (versions 0.8.29–0.8.35) causes the C3-linearized list of base contracts to be permanently reversed in memory when Warning 3495 (storage layout too close to end of storage) is emitted. The root cause is use of ranges::actions::reverse instead of ranges::views::reverse from the ranges-v3 library, which mutates the underlying container in place. This reversal corrupts inheritance-dependent behavior including constructor invocation order, state-variable initialization, super and virtual function resolution, and can cause silent miscompilations or internal compiler errors. The bug only affects contracts using a custom storage layout placed within the last 2^64 slots of storage AND using inheritance. A Sourcify scan found no deployed contracts meeting these conditions. The fix is available in Solidity 0.8.36, which replaces the mutating call with a non-mutating view.

Nguồn: https://soliditylang.org/blog/2026/07/09/inheritance-order-reversal-on-storage-end-warning-bug. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.

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