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use lsp_types::DiagnosticSeverity;
use rowan::{ast::AstNode, TextRange};
use crate::{
db::document::Document,
syntax::bibtex::{self, HasDelims, HasEq, HasName, HasType, HasValue},
util::line_index_ext::LineIndexExt,
Db,
};
use super::{BibCode, Diagnostic, DiagnosticCode};
#[salsa::tracked(return_ref)]
pub fn collect(db: &dyn Db, document: Document) -> Vec<Diagnostic> {
let mut results = Vec::new();
let data = match document.parse(db).as_bib() {
Some(data) => data,
None => return results,
};
for node in data.root(db).descendants() {
analyze_entry(db, document, node.clone(), &mut results)
.or_else(|| analyze_field(db, document, node, &mut results));
}
results
}
fn analyze_entry(
db: &dyn Db,
document: Document,
node: bibtex::SyntaxNode,
results: &mut Vec<Diagnostic>,
) -> Option<()> {
let line_index = document.contents(db).line_index(db);
let entry = bibtex::Entry::cast(node)?;
if entry.left_delim_token().is_none() {
let code = BibCode::ExpectingLCurly;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: line_index.line_col_lsp_range(entry.type_token()?.text_range()),
code: DiagnosticCode::Bib(code),
message: String::from(code),
});
return Some(());
}
if entry.name_token().is_none() {
let code = BibCode::ExpectingKey;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: line_index.line_col_lsp_range(entry.left_delim_token()?.text_range()),
code: DiagnosticCode::Bib(code),
message: String::from(code),
});
return Some(());
}
if entry.right_delim_token().is_none() {
let code = BibCode::ExpectingRCurly;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: line_index
.line_col_lsp_range(TextRange::empty(entry.syntax().text_range().end())),
code: DiagnosticCode::Bib(code),
message: String::from(code),
});
return Some(());
}
Some(())
}
fn analyze_field(
db: &dyn Db,
document: Document,
node: bibtex::SyntaxNode,
results: &mut Vec<Diagnostic>,
) -> Option<()> {
let line_index = document.contents(db).line_index(db);
let field = bibtex::Field::cast(node)?;
if field.eq_token().is_none() {
let code = BibCode::ExpectingEq;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: line_index.line_col_lsp_range(field.name_token()?.text_range()),
code: DiagnosticCode::Bib(code),
message: String::from(code),
});
return Some(());
}
if field.value().is_none() {
let code = BibCode::ExpectingFieldValue;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: line_index.line_col_lsp_range(field.name_token()?.text_range()),
code: DiagnosticCode::Bib(code),
message: String::from(code),
});
return Some(());
}
Some(())
}
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