[−][src]Crate evmc_declare
evmc-declare is an attribute-style procedural macro to be used for automatic generation of FFI code for the EVMC API with minimal boilerplate.
evmc-declare can be used by applying its attribute to any struct which implements the EvmcVm
trait, from the evmc-vm crate.
The macro takes three arguments: a valid UTF-8 stylized VM name, a comma-separated list of capabilities, and a version string.
Example
#[evmc_declare::evmc_declare_vm("This is an example VM name", "ewasm, evm", "1.2.3-custom")] pub struct ExampleVM; impl evmc_vm::EvmcVm for ExampleVM { fn init() -> Self { ExampleVM {} } fn execute(&self, revision: evmc_vm::ffi::evmc_revision, code: &[u8], message: &evmc_vm::ExecutionMessage, context: Option<&mut evmc_vm::ExecutionContext>) -> evmc_vm::ExecutionResult { evmc_vm::ExecutionResult::success(1337, None) } }
Attribute Macros
evmc_declare_vm |