Struct WasmModule

pub struct WasmModule {
    pub code: Vec<u8>,
    pub hash: H256,
}

A wasm module ready to be put on chain.

Fields

code: Vec<u8>

hash: H256

Implementations

impl WasmModule

pub fn dummy() -> Self

Return a contract code that does nothing.

impl WasmModule

pub fn dummy_unique(replace_with: u32) -> Self

Same as Self::dummy but uses replace_with to make the code unique.

pub fn sized(size: u32) -> Self

Same as as with_num_instructions but based on the blob size.

This is needed when we weigh a blob without knowing how much instructions it contains.

pub fn with_num_instructions(num_instructions: u32) -> Self

A contract code of specified number of instructions that uses all its bytes for instructions but will return immediately.

All the basic blocks are maximum sized (only the first is important though). This is to account for the fact that the interpreter will compile one basic block at a time even when no code is executed. Hence this contract will trigger the compilation of a maximum sized basic block and then return with its first instruction.

All the code will be put into the “call” export. Hence this code can be safely used for the instantiate_with_code benchmark where no compilation of any block should be measured.

pub fn noop() -> Self

A contract code that calls the “noop” host function in a loop depending in the input.

pub fn instr(do_load: bool) -> Self

A contract code that does unaligned memory accessed in a loop.

Trait Implementations

impl Clone for WasmModule

fn clone(&self) -> WasmModule

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.