Enum deno_core::ModuleCode

pub enum ModuleCode {
    Static(&'static [u8]),
    Owned(Vec<u8>),
    Arc(Arc<str>),
}

Module code can be sourced from strings or bytes that are either owned or borrowed. This enumeration allows us to perform a minimal amount of cloning and format-shifting of the underlying data.

Note that any ModuleCode created from a 'static byte array or string must contain ASCII characters.

Examples of ways to construct a ModuleCode object:

let code: ModuleCode = "a string".into();
let code: ModuleCode = b"a string".into();

Variants

Static(&'static [u8])

Created from static data – must be 100% 7-bit ASCII!

Owned(Vec<u8>)

An owned chunk of data.

Arc(Arc<str>)

Scripts loaded from the deno_graph infrastructure.

Implementations

impl ModuleCode

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

pub fn try_static_ascii(&self) -> Option<&'static [u8]>

pub fn take_as_string(self) -> String

Takes a ModuleCode value as an owned String. May be slow.

pub fn truncate(&mut self, index: usize)

Truncates a ModuleCode] value, possibly re-allocating or memcpy’ing. May be slow.

Trait Implementations

impl Debug for ModuleCode

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

Formats the value using the given formatter.

impl Default for ModuleCode

fn default() -> Self

Returns the “default value” for a type.

impl From<&'static [u8]> for ModuleCode

fn from(value: &'static [u8]) -> Self

Converts to this type from the input type.

impl<const N: usize> From<&'static [u8; N]> for ModuleCode

fn from(value: &'static [u8; N]) -> Self

Converts to this type from the input type.

impl From<&'static str> for ModuleCode

fn from(value: &'static str) -> Self

Converts to this type from the input type.

impl From<&Arc<str>> for ModuleCode

fn from(value: &Arc<str>) -> Self

Converts to this type from the input type.

impl From<Arc<str>> for ModuleCode

fn from(value: Arc<str>) -> Self

Converts to this type from the input type.

impl From<Cow<'static, [u8]>> for ModuleCode

fn from(value: Cow<'static, [u8]>) -> Self

Converts to this type from the input type.

impl From<Cow<'static, str>> for ModuleCode

fn from(value: Cow<'static, str>) -> Self

Converts to this type from the input type.

impl From<String> for ModuleCode

fn from(value: String) -> Self

Converts to this type from the input type.

impl From<Vec<u8, Global>> for ModuleCode

fn from(value: Vec<u8>) -> Self

Converts to this type from the input type.