Enum OptLevel 

pub enum OptLevel {
    O0,
    O1,
    O2,
    O3,
    S,
    Z,
}

Semantic optimization level. Mirrors the GCC / Clang -O family without exposing raw flag strings at the manifest layer; each value maps to a fixed GCC / Clang-style -O flag (see OptLevel::as_flag) that the build planner appends verbatim. There is no per-toolchain flag translation today.

Variants

O0

-O0. No optimization; the dev profile default.

O1

-O1. Lightweight optimization.

O2

-O2. Standard optimization.

O3

-O3. Aggressive optimization; the release profile default.

S

-Os. Optimize for size.

Z

-Oz. Optimize harder for size; emitted verbatim as the GCC / Clang -Oz spelling with no per-toolchain fallback.

Implementations

impl OptLevel

pub fn as_flag(self) -> &'static str

Compiler flag for this level. The string form is stable and is what the build planner appends to C/C++ compile commands.

pub fn as_str(self) -> &'static str

Value used in JSON / metadata serialization. Mirrors the public manifest key (opt-level).

impl OptLevel

pub fn parse(raw: &str) -> Result<Self, String>

Parse the public manifest form. Accepts integers 0..=3 and the lowercase letters "s" / "z" exactly. Anything else returns a stable, user-facing error string.

Errors

Returns an error string when raw is not one of 0, 1, 2, 3, "s", or "z".

Trait Implementations

impl Clone for OptLevel

fn clone(&self) -> OptLevel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptLevel

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for OptLevel

fn deserialize<D: Deserializer<'de>>(de: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for OptLevel

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

Formats the value using the given formatter.

impl Hash for OptLevel

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for OptLevel

fn cmp(&self, other: &OptLevel) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for OptLevel

fn eq(&self, other: &OptLevel) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for OptLevel

fn partial_cmp(&self, other: &OptLevel) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for OptLevel

fn serialize<S: Serializer>(&self, ser: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl Copy for OptLevel

impl Eq for OptLevel

impl StructuralPartialEq for OptLevel