Struct BopWarning 

pub struct BopWarning {
    pub line: Option<u32>,
    pub column: Option<u32>,
    pub message: String,
    pub friendly_hint: Option<String>,
}

Non-fatal diagnostic surfaced by static checks that run after parsing (currently: match-exhaustiveness analysis in crate::check). Shape mirrors BopError so the same source-snippet rendering works; the only divergence is the leading header, which says warning: instead of error:.

Warnings never halt execution — they’re informational. The CLI prints them and then runs the program anyway. Embedders that want to treat them as errors can call BopWarning::into_error.

Fields

line: Option<u32>

column: Option<u32>

message: String

friendly_hint: Option<String>

Implementations

impl BopWarning

pub fn at(message: impl Into<String>, line: u32) -> Self

Convenience constructor that matches BopError::runtime’s shape so check passes can build warnings at a single source line.

pub fn with_hint(self, hint: impl Into<String>) -> Self

Attach a “hint:” line to the rendered output. Chained from the constructor so call sites stay tidy.

pub fn into_error(self) -> BopError

Promote the warning to a fatal BopError with the same fields. Useful for -Werror-style embedders.

pub fn render(&self, source: &str) -> String

Render the warning with a source snippet. Mirrors BopError::render but leads with warning: rather than error:.

Trait Implementations

impl Clone for BopWarning

fn clone(&self) -> BopWarning

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BopWarning

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

Formats the value using the given formatter.