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Labcoat

Contracts

Test before compiling

Section titled “Test before compiling”
Terminal window
labcoat test
labcoat test contracts/MyToken.rs

Native Rust integration tests run contracts through labcoat-test, keeping the fast feedback loop outside the chain.

Compile

Section titled “Compile”
Terminal window
labcoat compile contracts/MyToken.rs

Compilation writes:

  • build/MyToken.wasm: raw deployable module.
  • build/MyToken.wasm.gz: compressed distribution artifact.
  • build/MyToken.abi.json: opcode, input, and output metadata.

Deploy

Section titled “Deploy”
Terminal window
labcoat deploy build/MyToken.wasm --dry-run
labcoat deploy build/MyToken.wasm --name MyToken

Deployment uses a Bitcoin commit/reveal envelope, waits for the create trace, and records the resulting block:tx ID in labcoat.lock.

Simulate and call

Section titled “Simulate and call”
Terminal window
labcoat simulate MyToken 99
labcoat call MyToken 77 500

Arguments may be decimal u128, 0x hexadecimal, or strings up to 16 bytes packed little-endian. Simulation never broadcasts. Calls create a transaction and wait for indexing and decoded execution status.

Trace

Section titled “Trace”
Terminal window
labcoat trace <txid> --wait

Trace output includes decoded create, invoke, return, and revert events across every protostone in the transaction.