Enum Loc 

pub enum Loc {
    Internal,
    Console {
        line: usize,
        column: usize,
    },
    File {
        name: String,
        line: usize,
        column: usize,
    },
}

Capture a location in a parse.

Typically parsers create instances of Loc and error messages consume them. However, it is also possible to look up where a particular item is declared, and that may be helpful.

If you are not parsing a file, the simplest way to use this is to just make an “internal” instance.

use trivet::Loc;

let location = Loc::Internal;

Variants

Internal

This indicates that the source of an item is internal to the library; that is, it does not arise from parsing.

Console

This indicates that the source of an item is an unnamed stream. This might be appropriate for reading from standard input, for instance.

Fields

line: usize

Line number, starting at one.

column: usize

Column number, starting at one.

File

This indicates that the source of an item is a named stream, such as a file or URL.

Fields

name: String

Stream name.

line: usize

Line number, starting at one.

column: usize

Column number, starting at one.

Trait Implementations

impl Clone for Loc

fn clone(&self) -> Loc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Loc

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

Formats the value using the given formatter.

impl Display for Loc

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

Formats the value using the given formatter.

impl PartialEq for Loc

fn eq(&self, other: &Loc) -> 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 Eq for Loc

impl StructuralPartialEq for Loc