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use rowan::ast::AstNode;
use crate::{
db::Document,
syntax::bibtex::{self, HasName, HasType},
util::{
lang_data::{BibtexEntryTypeCategory, LANGUAGE_DATA},
line_index::LineIndex,
line_index_ext::LineIndexExt,
},
Db,
};
use super::types::{InternalSymbol, InternalSymbolKind};
pub fn find_symbols(db: &dyn Db, document: Document, buf: &mut Vec<InternalSymbol>) -> Option<()> {
let data = document.parse(db).as_bib()?;
let line_index = document.contents(db).line_index(db);
for node in data.root(db).children() {
process_string(node.clone(), line_index, buf)
.or_else(|| process_entry(node, line_index, buf));
}
Some(())
}
fn process_string(
node: bibtex::SyntaxNode,
line_index: &LineIndex,
buf: &mut Vec<InternalSymbol>,
) -> Option<()> {
let string = bibtex::StringDef::cast(node)?;
let name = string.name_token()?;
buf.push(InternalSymbol {
name: name.text().into(),
label: None,
kind: InternalSymbolKind::String,
deprecated: false,
full_range: line_index.line_col_lsp_range(string.syntax().text_range()),
selection_range: line_index.line_col_lsp_range(name.text_range()),
children: Vec::new(),
});
Some(())
}
fn process_entry(
node: bibtex::SyntaxNode,
line_index: &LineIndex,
buf: &mut Vec<InternalSymbol>,
) -> Option<()> {
let entry = bibtex::Entry::cast(node)?;
let ty = entry.type_token()?;
let key = entry.name_token()?;
let mut children = Vec::new();
for field in entry.fields() {
if let Some(name) = field.name_token() {
let symbol = InternalSymbol {
name: name.text().to_string(),
label: None,
kind: InternalSymbolKind::Field,
deprecated: false,
full_range: line_index.line_col_lsp_range(field.syntax().text_range()),
selection_range: line_index.line_col_lsp_range(name.text_range()),
children: Vec::new(),
};
children.push(symbol);
}
}
let category = LANGUAGE_DATA
.find_entry_type(&ty.text()[1..])
.map(|ty| ty.category)
.unwrap_or(BibtexEntryTypeCategory::Misc);
buf.push(InternalSymbol {
name: key.to_string(),
label: None,
kind: InternalSymbolKind::Entry(category),
deprecated: false,
full_range: line_index.line_col_lsp_range(entry.syntax().text_range()),
selection_range: line_index.line_col_lsp_range(key.text_range()),
children,
});
Some(())
}
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