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use lsp_types::DiagnosticSeverity;
use rowan::{ast::AstNode, NodeOrToken, TextRange};
use crate::{db::document::Document, syntax::latex, util::line_index_ext::LineIndexExt, Db};
use super::{Diagnostic, DiagnosticCode, TexCode};
#[salsa::tracked(return_ref)]
pub fn collect(db: &dyn Db, document: Document) -> Vec<Diagnostic> {
let mut results = Vec::new();
if !document.location(db).uri(db).as_str().ends_with(".tex") {
return results;
}
let data = match document.parse(db).as_tex() {
Some(data) => data,
None => return results,
};
for node in data.root(db).descendants() {
analyze_environment(db, document, node.clone(), &mut results)
.or_else(|| analyze_curly_group(db, document, node.clone(), &mut results))
.or_else(|| analyze_curly_braces(document, db, node, &mut results));
}
results
}
fn analyze_environment(
db: &dyn Db,
document: Document,
node: latex::SyntaxNode,
results: &mut Vec<Diagnostic>,
) -> Option<()> {
let environment = latex::Environment::cast(node)?;
let name1 = environment.begin()?.name()?.key()?;
let name2 = environment.end()?.name()?.key()?;
if name1 != name2 {
let code = TexCode::MismatchedEnvironment;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: document
.contents(db)
.line_index(db)
.line_col_lsp_range(latex::small_range(&name1)),
code: DiagnosticCode::Tex(code),
message: String::from(code),
});
}
Some(())
}
fn analyze_curly_group(
db: &dyn Db,
document: Document,
node: latex::SyntaxNode,
results: &mut Vec<Diagnostic>,
) -> Option<()> {
if !matches!(
node.kind(),
latex::CURLY_GROUP
| latex::CURLY_GROUP_COMMAND
| latex::CURLY_GROUP_KEY_VALUE
| latex::CURLY_GROUP_WORD
| latex::CURLY_GROUP_WORD_LIST
) {
return None;
}
let is_inside_verbatim_environment = node
.ancestors()
.filter_map(latex::Environment::cast)
.filter_map(|env| env.begin())
.filter_map(|begin| begin.name())
.filter_map(|name| name.key())
.any(|name| {
["asy", "lstlisting", "minted", "verbatim"].contains(&name.to_string().as_str())
});
if !is_inside_verbatim_environment
&& !node
.children_with_tokens()
.filter_map(NodeOrToken::into_token)
.any(|token| token.kind() == latex::R_CURLY)
{
let code = TexCode::RCurlyInserted;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: document
.contents(db)
.line_index(db)
.line_col_lsp_range(TextRange::empty(node.text_range().end())),
code: DiagnosticCode::Tex(code),
message: String::from(code),
});
}
Some(())
}
fn analyze_curly_braces(
document: Document,
db: &dyn Db,
node: rowan::SyntaxNode<latex::LatexLanguage>,
results: &mut Vec<Diagnostic>,
) -> Option<()> {
if node.kind() == latex::ERROR && node.first_token()?.text() == "}" {
let code = TexCode::UnexpectedRCurly;
results.push(Diagnostic {
severity: DiagnosticSeverity::ERROR,
range: document
.contents(db)
.line_index(db)
.line_col_lsp_range(node.text_range()),
code: DiagnosticCode::Tex(code),
message: String::from(code),
});
Some(())
} else {
None
}
}
|