Benchmark mock contract sizes

[ericnordelo]

Fixes #1470

[Copilot]

Pull Request Overview

This PR introduces tooling to benchmark and track Cairo contract bytecode and class sizes.

• Adds benchmark_diff.py to compare current and previous benchmarks with CLI color diff and markdown table outputs.
• Adds benchmark.py to generate size metrics (felts and bytes) as JSON or formatted CLI output.
• Updates Scarb.toml and CI workflows to build contracts, record baseline sizes, and post diffs on pull requests.

Reviewed Changes

Copilot reviewed 6 out of 10 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
scripts/benchmark_diff.py	New script for diffing benchmark outputs and printing colored/markdown summaries
scripts/benchmark.py	New script for collecting contract size metrics
packages/test_common/Scarb.toml	Enabled CASM compilation for benchmarking
benches/contract_sizes.json	Initialized empty baseline for contract sizes
.github/workflows/benches/update-benches.yml	Workflow to update baseline benchmarks after merges
.github/workflows/benches/show-diff.yml	Workflow to comment benchmark diffs on new or updated PRs

[Copilot]

[nitpick] The try_get_name function is duplicated in benchmark_diff.py; consider extracting it to a shared utility module to avoid code duplication.

[github-actions]

🧪 Cairo Contract Size Benchmark Diff

🧪 BYTECODE SIZE (felts)

Contract	Old	New	Δ	Note
Attacker	—	138	+138	✅ NEW
DualCaseAccessControlDefaultAdminRulesMock	—	8341	+8341	✅ NEW
DualCaseAccessControlMock	—	4532	+4532	✅ NEW
DualCaseAccountMock	—	2867	+2867	✅ NEW
DualCaseERC1155Mock	—	9455	+9455	✅ NEW
DualCaseERC1155ReceiverMock	—	2119	+2119	✅ NEW
DualCaseERC20Mock	—	6203	+6203	✅ NEW
DualCaseERC20PermitMock	—	7834	+7834	✅ NEW
DualCaseERC721Mock	—	12768	+12768	✅ NEW
DualCaseERC721ReceiverMock	—	1209	+1209	✅ NEW
DualCaseEthAccountMock	—	4867	+4867	✅ NEW
DualCaseOwnableMock	—	1358	+1358	✅ NEW
DualCaseTwoStepOwnableMock	—	2361	+2361	✅ NEW
ERC20BlockNumberVotesMock	—	12958	+12958	✅ NEW
ERC20OptionalTransferPanicMock	—	5919	+5919	✅ NEW
ERC20ReentrantMock	—	8450	+8450	✅ NEW
ERC20TimestampVotesMock	—	12958	+12958	✅ NEW
ERC2981AccessControlMock	—	6002	+6002	✅ NEW
ERC2981Mock	—	2080	+2080	✅ NEW
ERC2981OwnableMock	—	4604	+4604	✅ NEW
ERC4626AssetsFeesMock	—	17492	+17492	✅ NEW
ERC4626ExternalVaultMock	—	13546	+13546	✅ NEW
ERC4626LimitsMock	—	13552	+13552	✅ NEW
ERC4626Mock	—	12960	+12960	✅ NEW
ERC4626MockWithHooks	—	12934	+12934	✅ NEW
ERC4626OffsetMock	—	13464	+13464	✅ NEW
ERC4626SharesFeesMock	—	17131	+17131	✅ NEW
ERC721BlockNumberVotesMock	—	18786	+18786	✅ NEW
ERC721EnumerableMock	—	10510	+10510	✅ NEW
ERC721TimestampVotesMock	—	18786	+18786	✅ NEW
GovernorMock	—	18513	+18513	✅ NEW
GovernorQuorumFractionMock	—	23009	+23009	✅ NEW
GovernorTimelockedMock	—	23507	+23507	✅ NEW
InitializableMock	—	145	+145	✅ NEW
LegacyERC20VotesMock	—	9272	+9272	✅ NEW
LinearVestingMock	—	5198	+5198	✅ NEW
MockContract	—	323	+323	✅ NEW
MockTrace	—	4444	+4444	✅ NEW
MultisigTargetMock	—	349	+349	✅ NEW
MultisigWalletMock	—	10458	+10458	✅ NEW
NonImplementingMock	—	96	+96	✅ NEW
NoncesMock	—	215	+215	✅ NEW
PausableMock	—	145	+145	✅ NEW
ReentrancyMock	—	1473	+1473	✅ NEW
SRC5Mock	—	235	+235	✅ NEW
SRC9AccountMock	—	5577	+5577	✅ NEW
SimpleMock	—	459	+459	✅ NEW
SnakeAccountMock	—	3198	+3198	✅ NEW
SnakeERC1155Mock	—	7667	+7667	✅ NEW
SnakeERC1155MockWithHooks	—	7911	+7911	✅ NEW
SnakeERC20Mock	—	5550	+5550	✅ NEW
SnakeERC20MockWithHooks	—	5842	+5842	✅ NEW
SnakeERC721Mock	—	10685	+10685	✅ NEW
SnakeERC721MockWithHooks	—	10850	+10850	✅ NEW
SnakeEthAccountMock	—	5221	+5221	✅ NEW
StepsVestingMock	—	5408	+5408	✅ NEW
TimelockAttackerMock	—	777	+777	✅ NEW
TimelockControllerMock	—	10502	+10502	✅ NEW
UpgradesV1	—	1074	+1074	✅ NEW
UpgradesV2	—	1221	+1221	✅ NEW

🧪 SIERRA CONTRACT CLASS SIZE (bytes)

Contract	Old	New	Δ	Note
Attacker	—	6085	+6085	✅ NEW
DualCaseAccessControlDefaultAdminRulesMock	—	171622	+171622	✅ NEW
DualCaseAccessControlMock	—	96706	+96706	✅ NEW
DualCaseAccountMock	—	66378	+66378	✅ NEW
DualCaseERC1155Mock	—	217375	+217375	✅ NEW
DualCaseERC1155ReceiverMock	—	38147	+38147	✅ NEW
DualCaseERC20Mock	—	128806	+128806	✅ NEW
DualCaseERC20PermitMock	—	177200	+177200	✅ NEW
DualCaseERC721Mock	—	274742	+274742	✅ NEW
DualCaseERC721ReceiverMock	—	24342	+24342	✅ NEW
DualCaseEthAccountMock	—	91233	+91233	✅ NEW
DualCaseOwnableMock	—	30723	+30723	✅ NEW
DualCaseTwoStepOwnableMock	—	47987	+47987	✅ NEW
ERC20BlockNumberVotesMock	—	291969	+291969	✅ NEW
ERC20OptionalTransferPanicMock	—	124793	+124793	✅ NEW
ERC20ReentrantMock	—	189745	+189745	✅ NEW
ERC20TimestampVotesMock	—	291932	+291932	✅ NEW
ERC2981AccessControlMock	—	123006	+123006	✅ NEW
ERC2981Mock	—	40853	+40853	✅ NEW
ERC2981OwnableMock	—	93132	+93132	✅ NEW
ERC4626AssetsFeesMock	—	379741	+379741	✅ NEW
ERC4626ExternalVaultMock	—	293564	+293564	✅ NEW
ERC4626LimitsMock	—	295692	+295692	✅ NEW
ERC4626Mock	—	281128	+281128	✅ NEW
ERC4626MockWithHooks	—	277901	+277901	✅ NEW
ERC4626OffsetMock	—	293332	+293332	✅ NEW
ERC4626SharesFeesMock	—	369762	+369762	✅ NEW
ERC721BlockNumberVotesMock	—	432502	+432502	✅ NEW
ERC721EnumerableMock	—	226427	+226427	✅ NEW
ERC721TimestampVotesMock	—	432493	+432493	✅ NEW
GovernorMock	—	457408	+457408	✅ NEW
GovernorQuorumFractionMock	—	556705	+556705	✅ NEW
GovernorTimelockedMock	—	579123	+579123	✅ NEW
InitializableMock	—	6746	+6746	✅ NEW
LegacyERC20VotesMock	—	210979	+210979	✅ NEW
LinearVestingMock	—	103157	+103157	✅ NEW
MockContract	—	8400	+8400	✅ NEW
MockTrace	—	87974	+87974	✅ NEW
MultisigTargetMock	—	9120	+9120	✅ NEW
MultisigWalletMock	—	228078	+228078	✅ NEW
NonImplementingMock	—	4165	+4165	✅ NEW
NoncesMock	—	7019	+7019	✅ NEW
PausableMock	—	7304	+7304	✅ NEW
ReentrancyMock	—	32174	+32174	✅ NEW
SRC5Mock	—	8385	+8385	✅ NEW
SRC9AccountMock	—	129558	+129558	✅ NEW
SimpleMock	—	11907	+11907	✅ NEW
SnakeAccountMock	—	74308	+74308	✅ NEW
SnakeERC1155Mock	—	181167	+181167	✅ NEW
SnakeERC1155MockWithHooks	—	190917	+190917	✅ NEW
SnakeERC20Mock	—	116477	+116477	✅ NEW
SnakeERC20MockWithHooks	—	142850	+142850	✅ NEW
SnakeERC721Mock	—	232720	+232720	✅ NEW
SnakeERC721MockWithHooks	—	241047	+241047	✅ NEW
SnakeEthAccountMock	—	100099	+100099	✅ NEW
StepsVestingMock	—	107175	+107175	✅ NEW
TimelockAttackerMock	—	22711	+22711	✅ NEW
TimelockControllerMock	—	250722	+250722	✅ NEW
UpgradesV1	—	25813	+25813	✅ NEW
UpgradesV2	—	28303	+28303	✅ NEW

This comment was generated automatically from benchmark diffs.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.40%. Comparing base (a03e01e) to head (9fa3442).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1471   +/-   ##
=======================================
  Coverage   92.40%   92.40%           
=======================================
  Files          82       82           
  Lines        2265     2265           
=======================================
  Hits         2093     2093           
  Misses        172      172           

---

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[immrsd]

Looking good, just left a couple of minor suggestions

[immrsd]

Great job, LGTM!