Struct Buffer 

pub struct Buffer { /* private fields */ }

The Buffer struct provides mutable CPU storage for binding structured host data to a VM invocation.

Implementations

impl Buffer

pub fn new(layout: BufferLayout) -> Self

pub fn layout(&self) -> &BufferLayout

pub fn bytes(&self) -> &[u8]

pub fn read(&self, member_name: &str) -> Result<Value, VmError>

Reads a VM value from the buffer layout by member name.

pub fn read_indexed( &self, member_name: &str, index: usize, ) -> Result<Value, VmError>

Reads one array element from a VM buffer member.

pub fn read_field( &self, member_name: &str, field_name: &str, ) -> Result<Value, VmError>

Reads one field from a struct-valued VM buffer member.

pub fn read_indexed_field( &self, member_name: &str, index: usize, field_name: &str, ) -> Result<Value, VmError>

Reads one field from a struct array element in a VM buffer member.

pub fn write(&mut self, member_name: &str, value: Value) -> Result<(), VmError>

Writes a VM value into the buffer layout by member name.

pub fn write_indexed( &mut self, member_name: &str, index: usize, value: Value, ) -> Result<(), VmError>

Writes one array element in a VM buffer member.

pub fn write_field( &mut self, member_name: &str, field_name: &str, value: Value, ) -> Result<(), VmError>

Writes one field in a struct-valued VM buffer member.

pub fn write_indexed_field( &mut self, member_name: &str, index: usize, field_name: &str, value: Value, ) -> Result<(), VmError>

Writes one field in a struct array element in a VM buffer member.

pub fn read_f32(&self, member_name: &str) -> Result<f32, VmError>

Reads an f32 member from the buffer layout by name.

Trait Implementations

impl Debug for Buffer

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

Formats the value using the given formatter.