Struct TrapEncodingBuilder

pub struct TrapEncodingBuilder { /* private fields */ }

A helper structure to build the custom-encoded section of a wasmtime compilation image which encodes trap information.

This structure is incrementally fed the results of compiling individual functions and handles all the encoding internally, allowing usage of lookup_trap_code below with the resulting section.

Implementations

impl TrapEncodingBuilder

pub fn push(&mut self, func: Range<u64>, traps: &[TrapInformation])

Appends trap information about a function into this section.

This function is called to describe traps for the func range specified. The func offsets are specified relative to the text section itself, and the traps offsets are specified relative to the start of func.

This is required to be called in-order for increasing ranges of func to ensure the final array is properly sorted. Additionally traps must be sorted.

pub fn append_to(self, obj: &mut Object<'_>)

Encodes this section into the object provided.

Trait Implementations

impl Default for TrapEncodingBuilder

fn default() -> TrapEncodingBuilder

Returns the “default value” for a type.