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Implement XCM API with XcmPrecompile#2687

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cmichi merged 25 commits intomasterfrom
cmichi-stabilize-xcm-behind-feature-flag
Oct 29, 2025
Merged

Implement XCM API with XcmPrecompile#2687
cmichi merged 25 commits intomasterfrom
cmichi-stabilize-xcm-behind-feature-flag

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@cmichi cmichi commented Oct 22, 2025 •
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This PR implements an XCM API using the Polkadot SDK XcmPrecompile. It also stabilizes the API behind the feature xcm.

The XcmPrecompile interface can be found here. The precompile implementation here.

Note that the xcm_send unfortunately no longer returns a XcmHash, which we still had in ink! v5.

Room for Optimization

We could introduce an API function xcm_weigh_and_execute. This function would be more efficient than what needs to be done now: calling xcm_weigh and passing the result to xcm_execute. The function could deduplicate operations that are executed twice in this sequence (e.g. encoding the msg).

Testing

We can't test the contract-xcm example in our CI currently. This is because the ink-node --chain ink-parachain-local configuration is currently broken (doesn't produce blocks).

Here's how I've tested the contract locally:

cd polkadot-sdk/ cargo install --path polkadot/ --locked cargo install --path substrate/bin/utils/chain-spec-builder/ cargo install --path cumulus/polkadot-parachain/ cargo build --release --manifest-path cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml export runtime=target/release/wbuild/asset-hub-westend-runtime/asset_hub_westend_runtime.wasm chain-spec-builder -c "/dev/stdout" create --relay-chain "dev" --para-id 1000 -r $runtime named-preset development > ../westend.json polkadot --dev & polkadot-parachain --chain /tmp/westend.json --dev -lerror,runtime::revive=trace,xcm=trace & cd ink/integration-tests/public/contract-xcm/ CONTRACTS_NODE_URL=ws://127.0.0.1:9944 cargo test --all-features
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github-actions bot commented Oct 22, 2025 •
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🦑 📈 ink! Example Contracts ‒ Changes Report 📉 🦑

⚠️ The ink! master is ahead of your branch, this might skew the comparison data below. ⚠️
These are the results when building the integration-tests/* contracts from this branch and comparing them to ink! master:

Show overview

Using the ABI denoted in the contract manifest.

Contract Upstream Size (kB) PR Size (kB) Diff (kB) Diff (%) Change
./integration-tests/all-abi/events 18.411 18.412 0.001 0% 📈
./integration-tests/internal/call-builder-return-value 9.161 9.161 0 0% ➖
./integration-tests/internal/e2e-runtime-only-backend 2.202 2.202 0 0% ➖
./integration-tests/internal/gas-hostfns 1.016 1.016 0 0% ➖
./integration-tests/internal/lang-err/call-builder 8.193 8.193 0 0% ➖
./integration-tests/internal/lang-err/call-builder-delegate 3.6 3.6 0 0% ➖
./integration-tests/internal/lang-err/constructors-return-value 2.442 2.442 0 0% ➖
./integration-tests/internal/lang-err/contract-ref 6.732 6.732 0 0% ➖
./integration-tests/internal/lang-err/integration-flipper 2.059 2.059 0 0% ➖
./integration-tests/internal/mapping 10.622 10.628 0.006 0% 📈
./integration-tests/internal/misc-hostfns 2.204 2.204 0 0% ➖
./integration-tests/internal/mother 15.034 15.034 0 0% ➖
./integration-tests/internal/overflow-safety 1.311 1.31 -0.001 0% 📉
./integration-tests/internal/own-code-hash 3.373 3.373 0 0% ➖
./integration-tests/internal/sr25519-verification 0.853 0.853 0 0% ➖
./integration-tests/internal/static-buffer 3.002 3.003 0.001 0% 📈
./integration-tests/internal/storage-types 16.782 16.779 -0.003 0% 📉
./integration-tests/internal/system-precompile 2.314 2.314 0 0% ➖
./integration-tests/public/bytes 4.847 4.847 0 0% ➖
./integration-tests/public/complex-storage-structures 4.857 4.858 0.001 0% 📈
./integration-tests/public/conditional-compilation 1.727 1.727 0 0% ➖
./integration-tests/public/contract-invocation 7.952 7.952 0 0% ➖
./integration-tests/public/contract-invocation/contract1 2.081 2.081 0 0% ➖
./integration-tests/public/contract-invocation/contract2 1.996 1.996 0 0% ➖
./integration-tests/public/contract-invocation/virtual_contract 4.406 4.406 0 0% ➖
./integration-tests/public/contract-invocation/virtual_contract_ver1 1.954 1.954 0 0% ➖
./integration-tests/public/contract-invocation/virtual_contract_ver2 1.966 1.966 0 0% ➖
./integration-tests/public/contract-storage 7.63 7.624 -0.006 0% 📉
./integration-tests/public/contract-terminate 1.551 1.551 0 0% ➖
./integration-tests/public/contract-transfer 2.738 2.736 -0.002 0% 📉
./integration-tests/public/cross-contract-calls 8.457 8.457 0 0% ➖
./integration-tests/public/cross-contract-calls/other-contract 1.775 1.775 0 0% ➖
./integration-tests/public/custom-allocator 3.275 3.275 0 0% ➖
./integration-tests/public/custom-environment 2.726 2.726 0 0% ➖
./integration-tests/public/debugging-strategies 4.441 4.441 0 0% ➖
./integration-tests/public/dns 10.094 10.126 0.032 0% 📈
./integration-tests/public/e2e-call-runtime 1.563 1.563 0 0% ➖
./integration-tests/public/erc1155 20.74 20.781 0.041 0% 📈
./integration-tests/public/erc20 10.462 10.462 0 0% ➖
./integration-tests/public/erc721 12.005 12.038 0.033 0% 📈
./integration-tests/public/events 8.454 8.455 0.001 0% 📈
./integration-tests/public/fallible-setter 2.631 2.631 0 0% ➖
./integration-tests/public/flipper 1.775 1.775 0 0% ➖
./integration-tests/public/fuzz-testing 1.762 1.762 0 0% ➖
./integration-tests/public/incrementer 1.288 1.288 0 0% ➖
./integration-tests/public/lazyvec 5.726 5.725 -0.001 0% 📉
./integration-tests/public/multi-contract-caller 11.768 11.768 0 0% ➖
./integration-tests/public/multi-contract-caller/accumulator 1.134 1.134 0 0% ➖
./integration-tests/public/multi-contract-caller/adder 3.09 3.09 0 0% ➖
./integration-tests/public/multi-contract-caller/subber 3.094 3.094 0 0% ➖
./integration-tests/public/multisig 27.537 27.548 0.011 0% 📈
./integration-tests/public/payment-channel 7.444 7.444 0 0% ➖
./integration-tests/public/precompile 5.529 5.53 0.001 0% 📈
./integration-tests/public/runtime-call-contract 1.778 1.778 0 0% ➖
./integration-tests/public/trait-dyn-cross-contract-calls 3.953 3.953 0 0% ➖
./integration-tests/public/trait-dyn-cross-contract-calls/contracts/incrementer 1.799 1.799 0 0% ➖
./integration-tests/public/trait-erc20 10.855 10.857 0.002 0% 📈
./integration-tests/public/trait-flipper 1.728 1.728 0 0% ➖
./integration-tests/public/trait-incrementer 1.87 1.87 0 0% ➖
./integration-tests/public/upgradeable-contracts/delegator 6.487 6.487 0 0% ➖
./integration-tests/public/upgradeable-contracts/delegator/delegatee 2.996 2.996 0 0% ➖
./integration-tests/public/upgradeable-contracts/delegator/delegatee2 2.996 2.996 0 0% ➖
./integration-tests/public/upgradeable-contracts/set-code-hash 1.723 1.723 0 0% ➖
./integration-tests/public/upgradeable-contracts/set-code-hash-migration 1.723 1.723 0 0% ➖
./integration-tests/public/upgradeable-contracts/set-code-hash-migration/migration 1.877 1.877 0 0% ➖
./integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer 1.901 1.901 0 0% ➖
./integration-tests/public/upgradeable-contracts/set-code-hash/updated-incrementer 1.675 1.675 0 0% ➖
./integration-tests/public/wildcard-selector 2.948 2.948 0 0% ➖
./integration-tests/solidity-abi/events 11.801 11.803 0.002 0% 📈
./integration-tests/solidity-abi/sol-cross-contract 4.492 4.492 0 0% ➖
./integration-tests/solidity-abi/sol-cross-contract/other-contract-sol 2.138 2.138 0 0% ➖
./integration-tests/solidity-abi/sol-encoding 2.063 2.063 0 0% ➖
./integration-tests/solidity-abi/solidity-calls-flipper 7.074 7.074 0 0% ➖
./integration-tests/solidity-abi/trait-dyn-cross-contract-calls 5.672 5.672 0 0% ➖
./integration-tests/solidity-abi/trait-dyn-cross-contract-calls/contracts/incrementer 1.651 1.651 0 0% ➖
./integration-tests/solidity-abi/trait-flipper 1.389 1.389 0 0% ➖
Show diagram 
gantt dateFormat x axisFormat x section ./integration-tests/all-abi/events : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 18411 kb : a1, 0, 18411 pr default abi - 18412 kb : a1, 0, 18412 pr sol abi - 18412 kb : a2, 0, 18412 pr all abi - 18412 kb : a3, 0, 18412 #nbsp; : a4, 0, 0 section ./integration-tests/internal/call-builder-return-value : a5, 0, 0 v5 default abi - 8924 kb : a1, 0, 8924 master default abi - 9161 kb : a1, 0, 9161 pr default abi - 9161 kb : a1, 0, 9161 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/e2e-runtime-only-backend : a5, 0, 0 v5 default abi - 1925 kb : a1, 0, 1925 master default abi - 2202 kb : a1, 0, 2202 pr default abi - 2202 kb : a1, 0, 2202 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/gas-hostfns : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1016 kb : a1, 0, 1016 pr default abi - 1016 kb : a1, 0, 1016 pr sol abi - 1118 kb : a2, 0, 1118 pr all abi - 1486 kb : a3, 0, 1486 #nbsp; : a4, 0, 0 section ./integration-tests/internal/lang-err/call-builder : a5, 0, 0 v5 default abi - 2612 kb : a1, 0, 2612 master default abi - 8193 kb : a1, 0, 8193 pr default abi - 8193 kb : a1, 0, 8193 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/lang-err/call-builder-delegate : a5, 0, 0 v5 default abi - 2612 kb : a1, 0, 2612 master default abi - 3600 kb : a1, 0, 3600 pr default abi - 3600 kb : a1, 0, 3600 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/lang-err/constructors-return-value : a5, 0, 0 v5 default abi - 2011 kb : a1, 0, 2011 master default abi - 2442 kb : a1, 0, 2442 pr default abi - 2442 kb : a1, 0, 2442 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/lang-err/contract-ref : a5, 0, 0 v5 default abi - 5087 kb : a1, 0, 5087 master default abi - 6732 kb : a1, 0, 6732 pr default abi - 6732 kb : a1, 0, 6732 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/lang-err/integration-flipper : a5, 0, 0 v5 default abi - 1910 kb : a1, 0, 1910 master default abi - 2059 kb : a1, 0, 2059 pr default abi - 2059 kb : a1, 0, 2059 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/mapping : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 10622 kb : a1, 0, 10622 pr default abi - 10628 kb : a1, 0, 10628 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/misc-hostfns : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 2204 kb : a1, 0, 2204 pr default abi - 2204 kb : a1, 0, 2204 pr sol abi - 2129 kb : a2, 0, 2129 pr all abi - 2333 kb : a3, 0, 2333 #nbsp; : a4, 0, 0 section ./integration-tests/internal/mother : a5, 0, 0 v5 default abi - 12681 kb : a1, 0, 12681 master default abi - 15034 kb : a1, 0, 15034 pr default abi - 15034 kb : a1, 0, 15034 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/overflow-safety : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1311 kb : a1, 0, 1311 pr default abi - 1310 kb : a1, 0, 1310 pr sol abi - 2173 kb : a2, 0, 2173 pr all abi - 2671 kb : a3, 0, 2671 #nbsp; : a4, 0, 0 section ./integration-tests/internal/own-code-hash : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 3373 kb : a1, 0, 3373 pr default abi - 3373 kb : a1, 0, 3373 pr sol abi - 2951 kb : a2, 0, 2951 pr all abi - 4056 kb : a3, 0, 4056 #nbsp; : a4, 0, 0 section ./integration-tests/internal/sr25519-verification : a5, 0, 0 v5 default abi - 1082 kb : a1, 0, 1082 master default abi - 853 kb : a1, 0, 853 pr default abi - 853 kb : a1, 0, 853 pr sol abi - 777 kb : a2, 0, 777 pr all abi - 980 kb : a3, 0, 980 #nbsp; : a4, 0, 0 section ./integration-tests/internal/static-buffer : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 3002 kb : a1, 0, 3002 pr default abi - 3003 kb : a1, 0, 3003 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/storage-types : a5, 0, 0 v5 default abi - 11369 kb : a1, 0, 11369 master default abi - 16782 kb : a1, 0, 16782 pr default abi - 16779 kb : a1, 0, 16779 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/internal/system-precompile : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 2314 kb : a1, 0, 2314 pr default abi - 2314 kb : a1, 0, 2314 pr sol abi - 2243 kb : a2, 0, 2243 pr all abi - 2770 kb : a3, 0, 2770 #nbsp; : a4, 0, 0 section ./integration-tests/public/bytes : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 4847 kb : a1, 0, 4847 pr default abi - 4847 kb : a1, 0, 4847 pr sol abi - 4847 kb : a2, 0, 4847 pr all abi - 7535 kb : a3, 0, 7535 #nbsp; : a4, 0, 0 section ./integration-tests/public/complex-storage-structures : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 4857 kb : a1, 0, 4857 pr default abi - 4858 kb : a1, 0, 4858 pr sol abi - 7500 kb : a2, 0, 7500 pr all abi - 9141 kb : a3, 0, 9141 #nbsp; : a4, 0, 0 section ./integration-tests/public/conditional-compilation : a5, 0, 0 v5 default abi - 1460 kb : a1, 0, 1460 master default abi - 1727 kb : a1, 0, 1727 pr default abi - 1727 kb : a1, 0, 1727 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-invocation : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 7952 kb : a1, 0, 7952 pr default abi - 7952 kb : a1, 0, 7952 pr sol abi - 8741 kb : a2, 0, 8741 pr all abi - 11825 kb : a3, 0, 11825 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-invocation/contract1 : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 2081 kb : a1, 0, 2081 pr default abi - 2081 kb : a1, 0, 2081 pr sol abi - 2138 kb : a2, 0, 2138 pr all abi - 2891 kb : a3, 0, 2891 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-invocation/contract2 : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1996 kb : a1, 0, 1996 pr default abi - 1996 kb : a1, 0, 1996 pr sol abi - 2102 kb : a2, 0, 2102 pr all abi - 2784 kb : a3, 0, 2784 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-invocation/virtual_contract : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 4406 kb : a1, 0, 4406 pr default abi - 4406 kb : a1, 0, 4406 pr sol abi - 5539 kb : a2, 0, 5539 pr all abi - 6443 kb : a3, 0, 6443 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-invocation/virtual_contract_ver1 : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1954 kb : a1, 0, 1954 pr default abi - 1954 kb : a1, 0, 1954 pr sol abi - 2127 kb : a2, 0, 2127 pr all abi - 2521 kb : a3, 0, 2521 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-invocation/virtual_contract_ver2 : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1966 kb : a1, 0, 1966 pr default abi - 1966 kb : a1, 0, 1966 pr sol abi - 2139 kb : a2, 0, 2139 pr all abi - 2547 kb : a3, 0, 2547 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-storage : a5, 0, 0 v5 default abi - 7459 kb : a1, 0, 7459 master default abi - 7630 kb : a1, 0, 7630 pr default abi - 7624 kb : a1, 0, 7624 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-terminate : a5, 0, 0 v5 default abi - 1314 kb : a1, 0, 1314 master default abi - 1551 kb : a1, 0, 1551 pr default abi - 1551 kb : a1, 0, 1551 pr sol abi - 1517 kb : a2, 0, 1517 pr all abi - 1646 kb : a3, 0, 1646 #nbsp; : a4, 0, 0 section ./integration-tests/public/contract-transfer : a5, 0, 0 v5 default abi - 1520 kb : a1, 0, 1520 master default abi - 2738 kb : a1, 0, 2738 pr default abi - 2736 kb : a1, 0, 2736 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 3120 kb : a3, 0, 3120 #nbsp; : a4, 0, 0 section ./integration-tests/public/cross-contract-calls : a5, 0, 0 v5 default abi - 7471 kb : a1, 0, 7471 master default abi - 8457 kb : a1, 0, 8457 pr default abi - 8457 kb : a1, 0, 8457 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/cross-contract-calls/other-contract : a5, 0, 0 v5 default abi - 1591 kb : a1, 0, 1591 master default abi - 1775 kb : a1, 0, 1775 pr default abi - 1775 kb : a1, 0, 1775 pr sol abi - 1550 kb : a2, 0, 1550 pr all abi - 2361 kb : a3, 0, 2361 #nbsp; : a4, 0, 0 section ./integration-tests/public/custom-allocator : a5, 0, 0 v5 default abi - 7993 kb : a1, 0, 7993 master default abi - 3275 kb : a1, 0, 3275 pr default abi - 3275 kb : a1, 0, 3275 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/custom-environment : a5, 0, 0 v5 default abi - 2062 kb : a1, 0, 2062 master default abi - 2726 kb : a1, 0, 2726 pr default abi - 2726 kb : a1, 0, 2726 pr sol abi - 1738 kb : a2, 0, 1738 pr all abi - 3167 kb : a3, 0, 3167 #nbsp; : a4, 0, 0 section ./integration-tests/public/debugging-strategies : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 4441 kb : a1, 0, 4441 pr default abi - 4441 kb : a1, 0, 4441 pr sol abi - 4819 kb : a2, 0, 4819 pr all abi - 5313 kb : a3, 0, 5313 #nbsp; : a4, 0, 0 section ./integration-tests/public/dns : a5, 0, 0 v5 default abi - 7142 kb : a1, 0, 7142 master default abi - 10094 kb : a1, 0, 10094 pr default abi - 10126 kb : a1, 0, 10126 pr sol abi - 10407 kb : a2, 0, 10407 pr all abi - 14248 kb : a3, 0, 14248 #nbsp; : a4, 0, 0 section ./integration-tests/public/e2e-call-runtime : a5, 0, 0 v5 default abi - 1182 kb : a1, 0, 1182 master default abi - 1563 kb : a1, 0, 1563 pr default abi - 1563 kb : a1, 0, 1563 pr sol abi - 1436 kb : a2, 0, 1436 pr all abi - 2049 kb : a3, 0, 2049 #nbsp; : a4, 0, 0 section ./integration-tests/public/erc1155 : a5, 0, 0 v5 default abi - 14566 kb : a1, 0, 14566 master default abi - 20740 kb : a1, 0, 20740 pr default abi - 20781 kb : a1, 0, 20781 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 35552 kb : a3, 0, 35552 #nbsp; : a4, 0, 0 section ./integration-tests/public/erc20 : a5, 0, 0 v5 default abi - 6993 kb : a1, 0, 6993 master default abi - 10462 kb : a1, 0, 10462 pr default abi - 10462 kb : a1, 0, 10462 pr sol abi - 12478 kb : a2, 0, 12478 pr all abi - 17297 kb : a3, 0, 17297 #nbsp; : a4, 0, 0 section ./integration-tests/public/erc721 : a5, 0, 0 v5 default abi - 9754 kb : a1, 0, 9754 master default abi - 12005 kb : a1, 0, 12005 pr default abi - 12038 kb : a1, 0, 12038 pr sol abi - 15001 kb : a2, 0, 15001 pr all abi - 20631 kb : a3, 0, 20631 #nbsp; : a4, 0, 0 section ./integration-tests/public/events : a5, 0, 0 v5 default abi - 4955 kb : a1, 0, 4955 master default abi - 8454 kb : a1, 0, 8454 pr default abi - 8455 kb : a1, 0, 8455 pr sol abi - 12531 kb : a2, 0, 12531 pr all abi - 17685 kb : a3, 0, 17685 #nbsp; : a4, 0, 0 section ./integration-tests/public/fallible-setter : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 2631 kb : a1, 0, 2631 pr default abi - 2631 kb : a1, 0, 2631 pr sol abi - 2631 kb : a2, 0, 2631 pr all abi - 3172 kb : a3, 0, 3172 #nbsp; : a4, 0, 0 section ./integration-tests/public/flipper : a5, 0, 0 v5 default abi - 1701 kb : a1, 0, 1701 master default abi - 1775 kb : a1, 0, 1775 pr default abi - 1775 kb : a1, 0, 1775 pr sol abi - 1550 kb : a2, 0, 1550 pr all abi - 2361 kb : a3, 0, 2361 #nbsp; : a4, 0, 0 section ./integration-tests/public/fuzz-testing : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1762 kb : a1, 0, 1762 pr default abi - 1762 kb : a1, 0, 1762 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/incrementer : a5, 0, 0 v5 default abi - 1538 kb : a1, 0, 1538 master default abi - 1288 kb : a1, 0, 1288 pr default abi - 1288 kb : a1, 0, 1288 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/lazyvec : a5, 0, 0 v5 default abi - 5103 kb : a1, 0, 5103 master default abi - 5726 kb : a1, 0, 5726 pr default abi - 5725 kb : a1, 0, 5725 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/multi-contract-caller : a5, 0, 0 v5 default abi - 6420 kb : a1, 0, 6420 master default abi - 11768 kb : a1, 0, 11768 pr default abi - 11768 kb : a1, 0, 11768 pr sol abi - 13759 kb : a2, 0, 13759 pr all abi - 12820 kb : a3, 0, 12820 #nbsp; : a4, 0, 0 section ./integration-tests/public/multi-contract-caller/accumulator : a5, 0, 0 v5 default abi - 1363 kb : a1, 0, 1363 master default abi - 1134 kb : a1, 0, 1134 pr default abi - 1134 kb : a1, 0, 1134 pr sol abi - 1455 kb : a2, 0, 1455 pr all abi - 2013 kb : a3, 0, 2013 #nbsp; : a4, 0, 0 section ./integration-tests/public/multi-contract-caller/adder : a5, 0, 0 v5 default abi - 1733 kb : a1, 0, 1733 master default abi - 3090 kb : a1, 0, 3090 pr default abi - 3090 kb : a1, 0, 3090 pr sol abi - 3202 kb : a2, 0, 3202 pr all abi - 3367 kb : a3, 0, 3367 #nbsp; : a4, 0, 0 section ./integration-tests/public/multi-contract-caller/subber : a5, 0, 0 v5 default abi - 1751 kb : a1, 0, 1751 master default abi - 3094 kb : a1, 0, 3094 pr default abi - 3094 kb : a1, 0, 3094 pr sol abi - 3208 kb : a2, 0, 3208 pr all abi - 3380 kb : a3, 0, 3380 #nbsp; : a4, 0, 0 section ./integration-tests/public/multisig : a5, 0, 0 v5 default abi - 21135 kb : a1, 0, 21135 master default abi - 27537 kb : a1, 0, 27537 pr default abi - 27548 kb : a1, 0, 27548 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/public/payment-channel : a5, 0, 0 v5 default abi - 5720 kb : a1, 0, 5720 master default abi - 7444 kb : a1, 0, 7444 pr default abi - 7444 kb : a1, 0, 7444 pr sol abi - 11255 kb : a2, 0, 11255 pr all abi - 14880 kb : a3, 0, 14880 #nbsp; : a4, 0, 0 section ./integration-tests/public/precompile : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 5529 kb : a1, 0, 5529 pr default abi - 5530 kb : a1, 0, 5530 pr sol abi - 7595 kb : a2, 0, 7595 pr all abi - 8693 kb : a3, 0, 8693 #nbsp; : a4, 0, 0 section ./integration-tests/public/runtime-call-contract : a5, 0, 0 v5 default abi - 1592 kb : a1, 0, 1592 master default abi - 1778 kb : a1, 0, 1778 pr default abi - 1778 kb : a1, 0, 1778 pr sol abi - 1550 kb : a2, 0, 1550 pr all abi - 2366 kb : a3, 0, 2366 #nbsp; : a4, 0, 0 section ./integration-tests/public/trait-dyn-cross-contract-calls : a5, 0, 0 v5 default abi - 2808 kb : a1, 0, 2808 master default abi - 3953 kb : a1, 0, 3953 pr default abi - 3953 kb : a1, 0, 3953 pr sol abi - 5672 kb : a2, 0, 5672 pr all abi - 4380 kb : a3, 0, 4380 #nbsp; : a4, 0, 0 section ./integration-tests/public/trait-dyn-cross-contract-calls/contracts/incrementer : a5, 0, 0 v5 default abi - 1571 kb : a1, 0, 1571 master default abi - 1799 kb : a1, 0, 1799 pr default abi - 1799 kb : a1, 0, 1799 pr sol abi - 1651 kb : a2, 0, 1651 pr all abi - 2448 kb : a3, 0, 2448 #nbsp; : a4, 0, 0 section ./integration-tests/public/trait-erc20 : a5, 0, 0 v5 default abi - 7286 kb : a1, 0, 7286 master default abi - 10855 kb : a1, 0, 10855 pr default abi - 10857 kb : a1, 0, 10857 pr sol abi - 12574 kb : a2, 0, 12574 pr all abi - 17585 kb : a3, 0, 17585 #nbsp; : a4, 0, 0 section ./integration-tests/public/trait-flipper : a5, 0, 0 v5 default abi - 1460 kb : a1, 0, 1460 master default abi - 1728 kb : a1, 0, 1728 pr default abi - 1728 kb : a1, 0, 1728 pr sol abi - 1389 kb : a2, 0, 1389 pr all abi - 2128 kb : a3, 0, 2128 #nbsp; : a4, 0, 0 section ./integration-tests/public/trait-incrementer : a5, 0, 0 v5 default abi - 1630 kb : a1, 0, 1630 master default abi - 1870 kb : a1, 0, 1870 pr default abi - 1870 kb : a1, 0, 1870 pr sol abi - 1820 kb : a2, 0, 1820 pr all abi - 2702 kb : a3, 0, 2702 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/delegator : a5, 0, 0 v5 default abi - 3869 kb : a1, 0, 3869 master default abi - 6487 kb : a1, 0, 6487 pr default abi - 6487 kb : a1, 0, 6487 pr sol abi - 9015 kb : a2, 0, 9015 pr all abi - 10942 kb : a3, 0, 10942 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/delegator/delegatee : a5, 0, 0 v5 default abi - 1652 kb : a1, 0, 1652 master default abi - 2996 kb : a1, 0, 2996 pr default abi - 2996 kb : a1, 0, 2996 pr sol abi - 2491 kb : a2, 0, 2491 pr all abi - 3284 kb : a3, 0, 3284 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/delegator/delegatee2 : a5, 0, 0 v5 default abi - 1652 kb : a1, 0, 1652 master default abi - 2996 kb : a1, 0, 2996 pr default abi - 2996 kb : a1, 0, 2996 pr sol abi - 2491 kb : a2, 0, 2491 pr all abi - 3284 kb : a3, 0, 3284 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/set-code-hash : a5, 0, 0 v5 default abi - 1740 kb : a1, 0, 1740 master default abi - 1723 kb : a1, 0, 1723 pr default abi - 1723 kb : a1, 0, 1723 pr sol abi - 2035 kb : a2, 0, 2035 pr all abi - 2642 kb : a3, 0, 2642 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/set-code-hash-migration : a5, 0, 0 v5 default abi - 1740 kb : a1, 0, 1740 master default abi - 1723 kb : a1, 0, 1723 pr default abi - 1723 kb : a1, 0, 1723 pr sol abi - 2035 kb : a2, 0, 2035 pr all abi - 2642 kb : a3, 0, 2642 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/set-code-hash-migration/migration : a5, 0, 0 v5 default abi - 1302 kb : a1, 0, 1302 master default abi - 1877 kb : a1, 0, 1877 pr default abi - 1877 kb : a1, 0, 1877 pr sol abi - 2616 kb : a2, 0, 2616 pr all abi - 2584 kb : a3, 0, 2584 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer : a5, 0, 0 v5 default abi - 1930 kb : a1, 0, 1930 master default abi - 1901 kb : a1, 0, 1901 pr default abi - 1901 kb : a1, 0, 1901 pr sol abi - 2600 kb : a2, 0, 2600 pr all abi - 3098 kb : a3, 0, 3098 #nbsp; : a4, 0, 0 section ./integration-tests/public/upgradeable-contracts/set-code-hash/updated-incrementer : a5, 0, 0 v5 default abi - 1717 kb : a1, 0, 1717 master default abi - 1675 kb : a1, 0, 1675 pr default abi - 1675 kb : a1, 0, 1675 pr sol abi - 2024 kb : a2, 0, 2024 pr all abi - 2581 kb : a3, 0, 2581 #nbsp; : a4, 0, 0 section ./integration-tests/public/wildcard-selector : a5, 0, 0 v5 default abi - 3234 kb : a1, 0, 3234 master default abi - 2948 kb : a1, 0, 2948 pr default abi - 2948 kb : a1, 0, 2948 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 5211 kb : a3, 0, 5211 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/events : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 11801 kb : a1, 0, 11801 pr default abi - 11803 kb : a1, 0, 11803 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/sol-cross-contract : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 4492 kb : a1, 0, 4492 pr default abi - 4492 kb : a1, 0, 4492 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/sol-cross-contract/other-contract-sol : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 2138 kb : a1, 0, 2138 pr default abi - 2138 kb : a1, 0, 2138 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/sol-encoding : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 2063 kb : a1, 0, 2063 pr default abi - 2063 kb : a1, 0, 2063 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/solidity-calls-flipper : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 7074 kb : a1, 0, 7074 pr default abi - 7074 kb : a1, 0, 7074 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/trait-dyn-cross-contract-calls : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 5672 kb : a1, 0, 5672 pr default abi - 5672 kb : a1, 0, 5672 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/trait-dyn-cross-contract-calls/contracts/incrementer : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1651 kb : a1, 0, 1651 pr default abi - 1651 kb : a1, 0, 1651 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0 section ./integration-tests/solidity-abi/trait-flipper : a5, 0, 0 v5 default abi - 0 kb : a1, 0, 0 master default abi - 1389 kb : a1, 0, 1389 pr default abi - 1389 kb : a1, 0, 1389 pr sol abi - 0 kb : a2, 0, 0 pr all abi - 0 kb : a3, 0, 0 #nbsp; : a4, 0, 0
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Show contract sizes: ink! vs Solidity ABI

The following table shows how the contract sizes on this branch change when choosing the Solidity ABI instead of the ink! ABI.

Contract Upstream Size (kB) PR Size (kB) Diff (kB) Diff (%) Change
./integration-tests/all-abi/events 18.412 18.412 0 0% ➖
./integration-tests/internal/gas-hostfns 1.016 1.118 0.102 10% 📈
./integration-tests/internal/misc-hostfns 2.204 2.129 -0.075 -2% 📉
./integration-tests/internal/overflow-safety 1.31 2.173 0.863 66% 📈
./integration-tests/internal/own-code-hash 3.373 2.951 -0.422 -12% 📉
./integration-tests/internal/sr25519-verification 0.853 0.777 -0.076 -8% 📉
./integration-tests/internal/system-precompile 2.314 2.243 -0.071 -2% 📉
./integration-tests/public/bytes 4.847 4.847 0 0% ➖
./integration-tests/public/complex-storage-structures 4.858 7.5 2.642 54% 📈
./integration-tests/public/contract-invocation 7.952 8.741 0.789 10% 📈
./integration-tests/public/contract-invocation/contract1 2.081 2.138 0.057 3% 📈
./integration-tests/public/contract-invocation/contract2 1.996 2.102 0.106 5% 📈
./integration-tests/public/contract-invocation/virtual_contract 4.406 5.539 1.133 26% 📈
./integration-tests/public/contract-invocation/virtual_contract_ver1 1.954 2.127 0.173 9% 📈
./integration-tests/public/contract-invocation/virtual_contract_ver2 1.966 2.139 0.173 9% 📈
./integration-tests/public/contract-terminate 1.551 1.517 -0.034 -1% 📉
./integration-tests/public/cross-contract-calls/other-contract 1.775 1.55 -0.225 -12% 📉
./integration-tests/public/custom-environment 2.726 1.738 -0.988 -35% 📉
./integration-tests/public/debugging-strategies 4.441 4.819 0.378 9% 📈
./integration-tests/public/dns 10.126 10.407 0.281 3% 📈
./integration-tests/public/e2e-call-runtime 1.563 1.436 -0.127 -7% 📉
./integration-tests/public/erc20 10.462 12.478 2.016 19% 📈
./integration-tests/public/erc721 12.038 15.001 2.963 25% 📈
./integration-tests/public/events 8.455 12.531 4.076 48% 📈
./integration-tests/public/fallible-setter 2.631 2.631 0 0% ➖
./integration-tests/public/flipper 1.775 1.55 -0.225 -12% 📉
./integration-tests/public/multi-contract-caller 11.768 13.759 1.991 17% 📈
./integration-tests/public/multi-contract-caller/accumulator 1.134 1.455 0.321 28% 📈
./integration-tests/public/multi-contract-caller/adder 3.09 3.202 0.112 4% 📈
./integration-tests/public/multi-contract-caller/subber 3.094 3.208 0.114 4% 📈
./integration-tests/public/payment-channel 7.444 11.255 3.811 51% 📈
./integration-tests/public/precompile 5.53 7.595 2.065 37% 📈
./integration-tests/public/runtime-call-contract 1.778 1.55 -0.228 -12% 📉
./integration-tests/public/trait-dyn-cross-contract-calls 3.953 5.672 1.719 43% 📈
./integration-tests/public/trait-dyn-cross-contract-calls/contracts/incrementer 1.799 1.651 -0.148 -7% 📉
./integration-tests/public/trait-erc20 10.857 12.574 1.717 16% 📈
./integration-tests/public/trait-flipper 1.728 1.389 -0.339 -19% 📉
./integration-tests/public/trait-incrementer 1.87 1.82 -0.05 -2% 📉
./integration-tests/public/upgradeable-contracts/delegator 6.487 9.015 2.528 39% 📈
./integration-tests/public/upgradeable-contracts/delegator/delegatee 2.996 2.491 -0.505 -16% 📉
./integration-tests/public/upgradeable-contracts/delegator/delegatee2 2.996 2.491 -0.505 -16% 📉
./integration-tests/public/upgradeable-contracts/set-code-hash 1.723 2.035 0.312 18% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash-migration 1.723 2.035 0.312 18% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash-migration/migration 1.877 2.616 0.739 39% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer 1.901 2.6 0.699 37% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash/updated-incrementer 1.675 2.024 0.349 21% 📈
Show contract sizes: ink! vs all ABI

The following table shows how the contract sizes on this branch change when choosing the all ABI instead of the ink! ABI.

Contract Upstream Size (kB) PR Size (kB) Diff (kB) Diff (%) Change
./integration-tests/all-abi/events 18.412 18.412 0 0% ➖
./integration-tests/internal/gas-hostfns 1.016 1.486 0.47 46% 📈
./integration-tests/internal/misc-hostfns 2.204 2.333 0.129 6% 📈
./integration-tests/internal/overflow-safety 1.31 2.671 1.361 104% 📈
./integration-tests/internal/own-code-hash 3.373 4.056 0.683 20% 📈
./integration-tests/internal/sr25519-verification 0.853 0.98 0.127 15% 📈
./integration-tests/internal/system-precompile 2.314 2.77 0.456 20% 📈
./integration-tests/public/bytes 4.847 7.535 2.688 55% 📈
./integration-tests/public/complex-storage-structures 4.858 9.141 4.283 88% 📈
./integration-tests/public/contract-invocation 7.952 11.825 3.873 49% 📈
./integration-tests/public/contract-invocation/contract1 2.081 2.891 0.81 39% 📈
./integration-tests/public/contract-invocation/contract2 1.996 2.784 0.788 39% 📈
./integration-tests/public/contract-invocation/virtual_contract 4.406 6.443 2.037 46% 📈
./integration-tests/public/contract-invocation/virtual_contract_ver1 1.954 2.521 0.567 29% 📈
./integration-tests/public/contract-invocation/virtual_contract_ver2 1.966 2.547 0.581 30% 📈
./integration-tests/public/contract-terminate 1.551 1.646 0.095 6% 📈
./integration-tests/public/contract-transfer 2.736 3.12 0.384 14% 📈
./integration-tests/public/cross-contract-calls/other-contract 1.775 2.361 0.586 33% 📈
./integration-tests/public/custom-environment 2.726 3.167 0.441 16% 📈
./integration-tests/public/debugging-strategies 4.441 5.313 0.872 20% 📈
./integration-tests/public/dns 10.126 14.248 4.122 41% 📈
./integration-tests/public/e2e-call-runtime 1.563 2.049 0.486 31% 📈
./integration-tests/public/erc1155 20.781 35.552 14.771 71% 📈
./integration-tests/public/erc20 10.462 17.297 6.835 65% 📈
./integration-tests/public/erc721 12.038 20.631 8.593 71% 📈
./integration-tests/public/events 8.455 17.685 9.23 109% 📈
./integration-tests/public/fallible-setter 2.631 3.172 0.541 21% 📈
./integration-tests/public/flipper 1.775 2.361 0.586 33% 📈
./integration-tests/public/multi-contract-caller 11.768 12.82 1.052 9% 📈
./integration-tests/public/multi-contract-caller/accumulator 1.134 2.013 0.879 78% 📈
./integration-tests/public/multi-contract-caller/adder 3.09 3.367 0.277 9% 📈
./integration-tests/public/multi-contract-caller/subber 3.094 3.38 0.286 9% 📈
./integration-tests/public/payment-channel 7.444 14.88 7.436 100% 📈
./integration-tests/public/precompile 5.53 8.693 3.163 57% 📈
./integration-tests/public/runtime-call-contract 1.778 2.366 0.588 33% 📈
./integration-tests/public/trait-dyn-cross-contract-calls 3.953 4.38 0.427 11% 📈
./integration-tests/public/trait-dyn-cross-contract-calls/contracts/incrementer 1.799 2.448 0.649 36% 📈
./integration-tests/public/trait-erc20 10.857 17.585 6.728 62% 📈
./integration-tests/public/trait-flipper 1.728 2.128 0.4 23% 📈
./integration-tests/public/trait-incrementer 1.87 2.702 0.832 44% 📈
./integration-tests/public/upgradeable-contracts/delegator 6.487 10.942 4.455 69% 📈
./integration-tests/public/upgradeable-contracts/delegator/delegatee 2.996 3.284 0.288 10% 📈
./integration-tests/public/upgradeable-contracts/delegator/delegatee2 2.996 3.284 0.288 10% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash 1.723 2.642 0.919 53% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash-migration 1.723 2.642 0.919 53% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash-migration/migration 1.877 2.584 0.707 38% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash-migration/updated-incrementer 1.901 3.098 1.197 63% 📈
./integration-tests/public/upgradeable-contracts/set-code-hash/updated-incrementer 1.675 2.581 0.906 54% 📈
./integration-tests/public/wildcard-selector 2.948 5.211 2.263 77% 📈

Link to the run | Last update: Wed Oct 29 16:42:37 CET 2025
@cmichi cmichi marked this pull request as ready for review October 28, 2025 14:07
davidsemakula
davidsemakula approved these changes Oct 29, 2025
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LGTM!

A few comments and suggestions below.
@cmichi cmichi merged commit 4b9c57b into master Oct 29, 2025
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@cmichi cmichi deleted the cmichi-stabilize-xcm-behind-feature-flag branch October 29, 2025 14:48
@cmichi cmichi mentioned this pull request Oct 30, 2025
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