Struct GasSimulator 

pub struct GasSimulator { /* private fields */ }

Single-pass pipeline gas simulator. O(1) per instruction, stack-allocated.

Implementations

impl GasSimulator

pub fn new() -> Self

pub fn feed_direct( &mut self, cycles: u8, decode_slots: u8, src1: u8, src2: u8, dst: u8, )

Fast path: feed an instruction using direct register indices instead of bitmasks. Avoids the shift+OR bitmask construction and trailing_zeros extraction loop. For typical 2-source, 1-dest instructions. src1/src2 are source register indices (0..12, or 0xFF for “none”). dst is destination register index (0..12, or 0xFF for “none”).

pub fn feed(&mut self, cost: &FastCost)

Process one instruction. O(1).

pub fn flush_and_get_cost(&self) -> u32

Return block gas cost: max(max_done - 3, 1).

pub fn reset(&mut self)

Reset for the next gas block.

Trait Implementations

impl Default for GasSimulator

fn default() -> Self

Returns the “default value” for a type.