aldrin_parser/warning/
duplicate_import.rs

1use super::Warning;
2use crate::ast::ImportStmt;
3use crate::diag::{Diagnostic, DiagnosticKind, Formatted, Formatter};
4use crate::validate::Validate;
5use crate::{util, Parsed, Schema, Span};
6
7#[derive(Debug)]
8pub struct DuplicateImport {
9    schema_name: String,
10    duplicate: ImportStmt,
11    first: Span,
12}
13
14impl DuplicateImport {
15    pub(crate) fn validate(schema: &Schema, validate: &mut Validate) {
16        util::find_duplicates(
17            schema.imports(),
18            |import| import.schema_name().value(),
19            |duplicate, first| {
20                validate.add_warning(Self {
21                    schema_name: validate.schema_name().to_owned(),
22                    duplicate: duplicate.clone(),
23                    first: first.span(),
24                });
25            },
26        );
27    }
28
29    pub fn duplicate(&self) -> &ImportStmt {
30        &self.duplicate
31    }
32
33    pub fn first(&self) -> Span {
34        self.first
35    }
36}
37
38impl Diagnostic for DuplicateImport {
39    fn kind(&self) -> DiagnosticKind {
40        DiagnosticKind::Warning
41    }
42
43    fn schema_name(&self) -> &str {
44        &self.schema_name
45    }
46
47    fn format<'a>(&'a self, parsed: &'a Parsed) -> Formatted<'a> {
48        let mut fmt = Formatter::new(
49            self,
50            format!(
51                "duplicate import of schema `{}`",
52                self.duplicate.schema_name().value()
53            ),
54        );
55
56        if let Some(schema) = parsed.get_schema(&self.schema_name) {
57            fmt.main_block(
58                schema,
59                self.duplicate.span().from,
60                self.duplicate.span(),
61                "duplicate import",
62            );
63            fmt.info_block(schema, self.first.from, self.first, "first imported here");
64        }
65
66        fmt.help("remove the duplicate import statement");
67        fmt.format()
68    }
69}
70
71impl From<DuplicateImport> for Warning {
72    fn from(w: DuplicateImport) -> Self {
73        Self::DuplicateImport(w)
74    }
75}
aldrin_parser/warning/duplicate_import.rs

aldrin_parser/warning/
duplicate_import.rs
