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Implement XCM API with XcmPrecompile #2687

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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-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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🦑 📈 ink! Example Contracts ‒ Changes Report 📉 🦑

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 18.398 18.487 0.089 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/lang-err/call-builder 8.191 8.191 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 10.624 10.737 0.113 1% 📈
./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 1.311 0 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 3.003 3.003 0 0% ➖
./integration-tests/internal/storage-types 16.777 16.777 0 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 4.857 0 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 7.688 0.058 1% 📈
./integration-tests/public/contract-terminate 1.551 1.551 0 0% ➖
./integration-tests/public/contract-transfer 2.736 2.736 0 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 2.727 0.001 0% 📈
./integration-tests/public/debugging-strategies 4.441 4.441 0 0% ➖
./integration-tests/public/dns 10.094 10.229 0.135 1% 📈
./integration-tests/public/e2e-call-runtime 1.563 1.563 0 0% ➖
./integration-tests/public/erc1155 20.74 20.881 0.141 1% 📈
./integration-tests/public/erc20 10.457 10.519 0.062 1% 📈
./integration-tests/public/erc721 12.004 12.182 0.178 1% 📈
./integration-tests/public/events 8.456 8.517 0.061 1% 📈
./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 5.746 0.02 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 3.089 3.089 0 0% ➖
./integration-tests/public/multi-contract-caller/subber 3.093 3.093 0 0% ➖
./integration-tests/public/multisig 27.537 27.744 0.207 1% 📈
./integration-tests/public/payment-channel 7.444 7.444 0 0% ➖
./integration-tests/public/precompile 5.529 5.529 0 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 10.858 10.935 0.077 1% 📈
./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 11.813 11.813 0 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 - 18398 kb       : a1, 0, 18398
pr default abi - 18487 kb      : a1, 0, 18487
pr sol abi - 18487 kb      : a2, 0, 18487
pr all abi - 18487 kb     : a3, 0, 18487
#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/lang-err/call-builder : a5, 0, 0
v5 default abi - 2612 kb       : a1, 0, 2612
master default abi - 8191 kb       : a1, 0, 8191
pr default abi - 8191 kb      : a1, 0, 8191
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 - 10624 kb       : a1, 0, 10624
pr default abi - 10737 kb      : a1, 0, 10737
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 - 2332 kb     : a3, 0, 2332
#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 - 1311 kb      : a1, 0, 1311
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 - 4055 kb     : a3, 0, 4055
#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 - 3003 kb       : a1, 0, 3003
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 - 16777 kb       : a1, 0, 16777
pr default abi - 16777 kb      : a1, 0, 16777
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 - 2772 kb     : a3, 0, 2772
#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 - 7536 kb     : a3, 0, 7536
#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 - 4857 kb      : a1, 0, 4857
pr sol abi - 7499 kb      : a2, 0, 7499
pr all abi - 9140 kb     : a3, 0, 9140
#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 - 2892 kb     : a3, 0, 2892
#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 - 5538 kb      : a2, 0, 5538
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 - 7688 kb      : a1, 0, 7688
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 - 2736 kb       : a1, 0, 2736
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 - 2727 kb      : a1, 0, 2727
pr sol abi - 1738 kb      : a2, 0, 1738
pr all abi - 3169 kb     : a3, 0, 3169
#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 - 10229 kb      : a1, 0, 10229
pr sol abi - 10431 kb      : a2, 0, 10431
pr all abi - 14336 kb     : a3, 0, 14336
#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 - 20881 kb      : a1, 0, 20881
pr sol abi - 0 kb      : a2, 0, 0
pr all abi - 35675 kb     : a3, 0, 35675
#nbsp; : a4, 0, 0

section  
./integration-tests/public/erc20 : a5, 0, 0
v5 default abi - 6993 kb       : a1, 0, 6993
master default abi - 10457 kb       : a1, 0, 10457
pr default abi - 10519 kb      : a1, 0, 10519
pr sol abi - 12477 kb      : a2, 0, 12477
pr all abi - 17354 kb     : a3, 0, 17354
#nbsp; : a4, 0, 0

section  
./integration-tests/public/erc721 : a5, 0, 0
v5 default abi - 9754 kb       : a1, 0, 9754
master default abi - 12004 kb       : a1, 0, 12004
pr default abi - 12182 kb      : a1, 0, 12182
pr sol abi - 15098 kb      : a2, 0, 15098
pr all abi - 20792 kb     : a3, 0, 20792
#nbsp; : a4, 0, 0

section  
./integration-tests/public/events : a5, 0, 0
v5 default abi - 4955 kb       : a1, 0, 4955
master default abi - 8456 kb       : a1, 0, 8456
pr default abi - 8517 kb      : a1, 0, 8517
pr sol abi - 12532 kb      : a2, 0, 12532
pr all abi - 17747 kb     : a3, 0, 17747
#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 - 5746 kb      : a1, 0, 5746
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 - 12819 kb     : a3, 0, 12819
#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 - 3089 kb       : a1, 0, 3089
pr default abi - 3089 kb      : a1, 0, 3089
pr sol abi - 3202 kb      : a2, 0, 3202
pr all abi - 3368 kb     : a3, 0, 3368
#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 - 3093 kb       : a1, 0, 3093
pr default abi - 3093 kb      : a1, 0, 3093
pr sol abi - 3207 kb      : a2, 0, 3207
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 - 27744 kb      : a1, 0, 27744
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 - 5529 kb      : a1, 0, 5529
pr sol abi - 7597 kb      : a2, 0, 7597
pr all abi - 8692 kb     : a3, 0, 8692
#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 - 10858 kb       : a1, 0, 10858
pr default abi - 10935 kb      : a1, 0, 10935
pr sol abi - 12573 kb      : a2, 0, 12573
pr all abi - 17664 kb     : a3, 0, 17664
#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 - 2489 kb      : a2, 0, 2489
pr all abi - 3285 kb     : a3, 0, 3285
#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 - 11813 kb       : a1, 0, 11813
pr default abi - 11813 kb      : a1, 0, 11813
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
Loading
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 18.487 18.487 0 0% ➖
./integration-tests/internal/misc-hostfns 2.204 2.129 -0.075 -2% 📉
./integration-tests/internal/overflow-safety 1.311 2.173 0.862 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 4.857 7.499 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 5.538 1.132 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 2.727 1.738 -0.989 -35% 📉
./integration-tests/public/debugging-strategies 4.441 4.819 0.378 9% 📈
./integration-tests/public/dns 10.229 10.431 0.202 2% 📈
./integration-tests/public/e2e-call-runtime 1.563 1.436 -0.127 -7% 📉
./integration-tests/public/erc20 10.519 12.477 1.958 19% 📈
./integration-tests/public/erc721 12.182 15.098 2.916 24% 📈
./integration-tests/public/events 8.517 12.532 4.015 47% 📈
./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 3.089 3.202 0.113 4% 📈
./integration-tests/public/multi-contract-caller/subber 3.093 3.207 0.114 4% 📈
./integration-tests/public/payment-channel 7.444 11.255 3.811 51% 📈
./integration-tests/public/precompile 5.529 7.597 2.068 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 10.935 12.573 1.638 15% 📈
./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 2.489 -0.507 -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 18.487 18.487 0 0% ➖
./integration-tests/internal/misc-hostfns 2.204 2.332 0.128 6% 📈
./integration-tests/internal/overflow-safety 1.311 2.671 1.36 104% 📈
./integration-tests/internal/own-code-hash 3.373 4.055 0.682 20% 📈
./integration-tests/internal/sr25519-verification 0.853 0.98 0.127 15% 📈
./integration-tests/internal/system-precompile 2.314 2.772 0.458 20% 📈
./integration-tests/public/bytes 4.847 7.536 2.689 55% 📈
./integration-tests/public/complex-storage-structures 4.857 9.14 4.283 88% 📈
./integration-tests/public/contract-invocation 7.952 11.825 3.873 49% 📈
./integration-tests/public/contract-invocation/contract1 2.081 2.892 0.811 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 2.727 3.169 0.442 16% 📈
./integration-tests/public/debugging-strategies 4.441 5.313 0.872 20% 📈
./integration-tests/public/dns 10.229 14.336 4.107 40% 📈
./integration-tests/public/e2e-call-runtime 1.563 2.049 0.486 31% 📈
./integration-tests/public/erc1155 20.881 35.675 14.794 71% 📈
./integration-tests/public/erc20 10.519 17.354 6.835 65% 📈
./integration-tests/public/erc721 12.182 20.792 8.61 71% 📈
./integration-tests/public/events 8.517 17.747 9.23 108% 📈
./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 12.819 1.051 9% 📈
./integration-tests/public/multi-contract-caller/accumulator 1.134 2.013 0.879 78% 📈
./integration-tests/public/multi-contract-caller/adder 3.089 3.368 0.279 9% 📈
./integration-tests/public/multi-contract-caller/subber 3.093 3.38 0.287 9% 📈
./integration-tests/public/payment-channel 7.444 14.88 7.436 100% 📈
./integration-tests/public/precompile 5.529 8.692 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 10.935 17.664 6.729 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 3.285 0.289 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: Fri Oct 24 19:59:46 CEST 2025

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