Struct StructLoggerEmit 

pub struct StructLoggerEmit {
    pub mem_size: bool,
    pub return_data: bool,
    pub refund: bool,
}

Controls which always-populated per-step fields the structLogger wire format emits.

mem_size, return_data, and refund are always present in the captured OpcodeStep (the capture layer just defaults them to zero/empty when the corresponding capture config is off). geth’s debug_traceTransaction suppresses these fields unless their data is actually captured. To match geth byte-for-byte we honor the caller’s intent explicitly here.

Typical mapping at the RPC layer:

let emit = StructLoggerEmit {
    mem_size: cfg.enable_memory,        // memSize travels with memory
    return_data: cfg.enable_return_data,
    refund: false,                      // no equivalent geth flag; off by default
};

Fields

mem_size: bool

Emit memSize even when its value is meaningful at every step. Geth ties this to memory capture; default false matches geth’s default config.

return_data: bool

Emit returnData (as "0x..." hex). Default false matches geth.

refund: bool

Force-emit refund even when it’s zero. Default false matches geth’s omitempty behavior — non-zero refund is always emitted regardless of this flag.

Trait Implementations

impl Clone for StructLoggerEmit

fn clone(&self) -> StructLoggerEmit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StructLoggerEmit

impl Debug for StructLoggerEmit

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StructLoggerEmit

fn default() -> StructLoggerEmit

Returns the “default value” for a type.