core, miner: EIP-8304 variable-length index entries - #35571
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Replace the interim fixed 64-byte records with the variable-length encodings defined by EIP-8304: a 2-byte type id, the searchable content (32 bytes, 20 for addresses) and fixed-size big-endian position fields, for totals of 42 (block), 50 (transaction), 38 (log address) and 50 (log topic) bytes. Field sizes are named constants so a spec change is a single-point edit. Block entries now use the spec's one-block delay: the level-0 table for block N holds the entry of block N-1, and none is added for the genesis block. Transaction entries carry the cumulative log count of the block before the transaction; log indices remain relative to the transaction. Sorting is a lexicographic comparison of the full encodings, which equals field-wise ordering since every field is fixed-size big-endian.
Unit coverage of the encoder layouts, round-trip decoding, length validation and ordering, plus a byte-for-byte reproduction of the spec's 22-entry worked example (blocks 40-43) and the level-0 wrapper's table shape.
VanshSahay
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August 23, 2026 19:30
VanshSahay
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August 23, 2026 19:34
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Swaps the interim fixed 64-byte entries for the EIP-8304 variable-length encodings (42/50/38/50 bytes, 2-byte BE type id), with the spec's one-block delay, cumulative log counts, and lexicographic sort. Field sizes are named constants so a spec change is a one-place edit. Tests pin the spec's worked example (22 entries, blocks 40-43) byte for byte.
Depends on #35496; the diff includes its commits until it merges.