Function Calls

Direct function calls between smart contract environments:

• Smart contracts on two chains can call each other directly if they support the same programming environments (e.g. EVM chains).

• This allows passing data, triggering asset transfers, updating state etc. across chains via function calls.

• Security models like cryptographic proofs can be used to pass verified data between contracts.

• Oracles can be used to trigger crosschain operations based on external data.

• Hashed timelock mechanisms can enable atomic operations across chains.

• Chains just need some common interface standards to interpret crosschain function calls.

However, potential limitations are:

• Chains must support compatible contract environments. Won't work between all chains.

• Direct calls can congest the two chains if not designed efficiently.

• More complex to coordinate multi-step transactions.

Direct crosschain function calls are feasible to connect compatible smart contract platforms but may have limitations compared to bridges and relayers in terms of interoperability across diverse chains.