Struct DiagnosticParts 

pub struct DiagnosticParts {
    pub line_num: usize,
    pub line: String,
    pub column: usize,
    pub caret_len: usize,
    pub message: String,
    pub suggestion: Option<&'static str>,
}

The structured pieces a caret-style diagnostic needs — produced by ParseError::diagnostic_parts and shared by every renderer (terminal, browser overlay) so their line, caret, message, and hint can never disagree.

Fields

line_num: usize

1-based line number of the error.

line: String

The full source line containing the error.

column: usize

Byte column of the caret within line (0-based).

caret_len: usize

Number of ^ carets under the offending span (≥1).

message: String

The Socratic explanation of what went wrong.

suggestion: Option<&'static str>

An optional “did you mean ‘…’?” spelling suggestion.

Trait Implementations

impl Clone for DiagnosticParts

fn clone(&self) -> DiagnosticParts

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiagnosticParts

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

Formats the value using the given formatter.