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use crate::ast;
use crate::shims::{to_offset, to_range};
use crate::ProgramInfo;
use libslide::collectors::collect_var_asgns;
use tower_lsp::lsp_types::*;
pub(crate) fn get_definitions(
position: Position,
program_info: &ProgramInfo,
supports_link: bool,
) -> Option<GotoDefinitionResponse> {
let &ProgramInfo {
uri,
original: program,
source,
..
} = &program_info;
let position = to_offset(&position, &source);
let tightest_expr = ast::get_tightest_expr(position, &program)?;
let var = tightest_expr.get_var()?;
let var_asgns = collect_var_asgns(&program);
let asgns = var_asgns.get(&var)?;
let definitions = if supports_link {
let links = asgns.iter().map(|asgn| {
let target_range = to_range(&asgn.lhs.span, &source);
LocationLink {
origin_selection_range: Some(to_range(&tightest_expr.span, &source)),
target_uri: uri.clone(),
target_range,
target_selection_range: target_range,
}
});
GotoDefinitionResponse::Link(links.collect())
} else {
let locs = asgns.iter().map(|asgn| {
let range = to_range(&asgn.lhs.span, &source);
Location {
uri: uri.clone(),
range,
}
});
GotoDefinitionResponse::Array(locs.collect())
};
Some(definitions)
}