[−][src]Struct evm::PC

pub struct PC<'a, P: Patch> { /* fields omitted */ }

Represents a program counter in EVM.

Methods

impl<'a, P: Patch> PC<'a, P>
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pub fn code(&self) -> &[u8]
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Get the code bytearray.

pub fn position(&self) -> usize
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Get the current program counter position.

pub fn opcode_position(&self) -> usize
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Get the current opcode position. Should only be used when debugging.

pub fn is_valid(&self, position: usize) -> bool
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Returns true if the position is a valid jump destination. If not, returns false.

pub fn is_end(&self) -> bool
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Check whether the PC is ended. Next read on this PC would result in PCError::PCOverflow.

pub fn peek_opcode(&self) -> Result<Opcode, OnChainError>
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Peek the next opcode.

pub fn peek(&self) -> Result<Instruction, OnChainError>
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Peek the next instruction.

impl<'a, P: Patch> PC<'a, P>
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pub fn new(code: &'a [u8], valids: &'a Valids, position: &'a usize) -> Self
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Create a new program counter from the given code.

Auto Trait Implementations

impl<'a, P> Send for PC<'a, P> where
    P: Send, 

impl<'a, P> Sync for PC<'a, P> where
    P: Sync, 

Blanket Implementations

impl<T> From for T
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impl<T, U> Into for T where
    U: From<T>, 
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impl<T, U> TryFrom for T where
    T: From<U>, 
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type Error = !

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, 
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impl<T> BorrowMut for T where
    T: ?Sized, 
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> Any for T where
    T: 'static + ?Sized, 
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impl<T> Same for T

type Output = T

Should always be Self