nyar_error/duplicates/
mod.rs

1use diagnostic::{Color, Label, ReportKind, SourceSpan};
2use std::fmt::{Debug, Display, Formatter};
3
4use crate::{Diagnostic, NyarError, NyarErrorKind};
5
6mod kind;
7
8#[derive(Copy, Clone, Eq, PartialEq)]
9pub enum DuplicateKind {
10    Type = 1002,
11    Function = 1003,
12    Variable = 1004,
13    Key = 1005,
14}
15
16#[derive(Clone, Debug, Eq, PartialEq)]
17pub struct DuplicateError {
18    kind: DuplicateKind,
19    name: String,
20    this_item: SourceSpan,
21    last_item: SourceSpan,
22}
23
24impl Display for DuplicateError {
25    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
26        write!(f, "Duplicate {} `{}`", self.kind, self.name)
27    }
28}
29
30impl DuplicateError {
31    pub fn as_report(&self, level: ReportKind) -> Diagnostic {
32        let mut report = Diagnostic::new(level).with_code(self.kind as usize);
33        report.set_message(self.to_string());
34        report.add_label(
35            Label::new(self.this_item)
36                .with_message(format!("{:?} `{}` is defined here.", self.kind, self.name))
37                .with_color(Color::Blue),
38        );
39        report.add_label(
40            Label::new(self.last_item)
41                .with_message(format!("{} `{}` is defined here.", self.kind, self.name))
42                .with_color(Color::Cyan),
43        );
44        report.set_help(format!("Items must have unique names, rename one of the items to have a unique name"));
45        report.finish()
46    }
47}
48
49impl DuplicateError {
50    pub fn duplicate_type(name: String, this: SourceSpan, last: SourceSpan) -> Self {
51        DuplicateError { kind: DuplicateKind::Type, name, this_item: this, last_item: last }
52    }
53}
54
55impl NyarError {
56    pub fn duplicate_type(name: String, this: SourceSpan, last: SourceSpan) -> Self {
57        let this = DuplicateError { kind: DuplicateKind::Type, name, this_item: this, last_item: last };
58        NyarErrorKind::Duplicate(this).as_error(ReportKind::Error)
59    }
60    pub fn duplicate_function(name: String, this: SourceSpan, last: SourceSpan) -> Self {
61        let this = DuplicateError { kind: DuplicateKind::Function, name, this_item: this, last_item: last };
62        NyarErrorKind::Duplicate(this).as_error(ReportKind::Error)
63    }
64    pub fn duplicate_variable(name: String, this: SourceSpan, last: SourceSpan) -> Self {
65        let this = DuplicateError { kind: DuplicateKind::Variable, name, this_item: this, last_item: last };
66        NyarErrorKind::Duplicate(this).as_error(ReportKind::Error)
67    }
68    pub fn duplicate_key(name: String, this: SourceSpan, last: SourceSpan) -> Self {
69        let this = DuplicateError { kind: DuplicateKind::Key, name, this_item: this, last_item: last };
70        NyarErrorKind::Duplicate(this).as_error(ReportKind::Error)
71    }
72}
nyar_error/duplicates/mod.rs

nyar_error/duplicates/
mod.rs
