Trait evm::Memory [−] [src]

pub trait Memory {
    fn check_write(&self, index: U256) -> Result<(), NotSupportedError>;

    fn check_write_range(
        &self, 
        start: U256, 
        len: U256
    ) -> Result<(), NotSupportedError>;

    fn write(
        &mut self, 
        index: U256, 
        value: M256
    ) -> Result<(), NotSupportedError>;

    fn write_raw(
        &mut self, 
        index: U256, 
        value: u8
    ) -> Result<(), NotSupportedError>;

    fn read(&self, index: U256) -> M256;

    fn read_raw(&self, index: U256) -> u8;
}

Represent a memory in EVM. Read should always succeed. Write can fall.

Required Methods

Check whether write on this index would result in an error. If this function returns Ok, then both write and write_raw on this index should succeed.

Check whether write on the given index range would result in an error. If this function returns Ok, then both write and write_raw on the given index range should succeed.

Write value into the index.

Write only one byte value into the index.

Read value from the index.

Read only one byte value from the index.

Implementors