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Make code more direct

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* Push control flow outwards, as per
  https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/dev/style.md#preconditions

* Don't re-do the work, pass-in the arguments
This commit is contained in:
Aleksey Kladov 2020-12-23 13:36:57 +03:00
parent 3ced546033
commit 2ec92b3dc3
1 changed files with 20 additions and 27 deletions
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47
crates/rust-analyzer/src/handlers.rs
View file

@ -5,12 +5,13 @@
use std::{
io::Write as _,
process::{self, Stdio},
sync::Arc,
};
use ide::{
AssistConfig, CompletionResolveCapability, FileId, FilePosition, FileRange, HoverAction,
HoverGotoTypeData, NavigationTarget, Query, RangeInfo, Runnable, RunnableKind, SearchScope,
SymbolKind, TextEdit,
HoverGotoTypeData, LineIndex, NavigationTarget, Query, RangeInfo, Runnable, RunnableKind,
SearchScope, SymbolKind, TextEdit,
};
use itertools::Itertools;
use lsp_server::ErrorCode;
@ -867,7 +868,7 @@ pub(crate) fn handle_formatting(
}
pub(crate) fn handle_code_action(
mut snap: GlobalStateSnapshot,
snap: GlobalStateSnapshot,
params: lsp_types::CodeActionParams,
) -> Result<Option<Vec<lsp_ext::CodeAction>>> {
let _p = profile::span("handle_code_action");
@ -894,7 +895,15 @@ pub(crate) fn handle_code_action(
let mut res: Vec<lsp_ext::CodeAction> = Vec::new();
add_quick_fixes(&snap, &params, &mut res)?;
let include_quick_fixes = match &params.context.only {
Some(v) => v.iter().any(|it| {
it == &lsp_types::CodeActionKind::EMPTY || it == &lsp_types::CodeActionKind::QUICKFIX
}),
None => true,
};
if include_quick_fixes {
add_quick_fixes(&snap, frange, &line_index, &mut res)?;
}
if snap.config.client_caps.code_action_resolve {
for (index, assist) in
@ -913,31 +922,16 @@ pub(crate) fn handle_code_action(
fn add_quick_fixes(
snap: &GlobalStateSnapshot,
params: &lsp_types::CodeActionParams,
frange: FileRange,
line_index: &Arc<LineIndex>,
acc: &mut Vec<lsp_ext::CodeAction>,
) -> Result<()> {
let file_id = from_proto::file_id(&snap, &params.text_document.uri)?;
let line_index = snap.analysis.file_line_index(file_id)?;
let range = from_proto::text_range(&line_index, params.range);
match &params.context.only {
Some(v) => {
if !v.iter().any(|it| {
it == &lsp_types::CodeActionKind::EMPTY
|| it == &lsp_types::CodeActionKind::QUICKFIX
}) {
return Ok(());
}
}
None => {}
};
let diagnostics = snap.analysis.diagnostics(&snap.config.diagnostics, file_id)?;
let diagnostics = snap.analysis.diagnostics(&snap.config.diagnostics, frange.file_id)?;
for fix in diagnostics
.into_iter()
.filter_map(|d| d.fix)
.filter(|fix| fix.fix_trigger_range.intersect(range).is_some())
.filter(|fix| fix.fix_trigger_range.intersect(frange.range).is_some())
{
let edit = to_proto::snippet_workspace_edit(&snap, fix.source_change)?;
let action = lsp_ext::CodeAction {
@ -951,12 +945,11 @@ fn add_quick_fixes(
acc.push(action);
}
for fix in snap.check_fixes.get(&file_id).into_iter().flatten() {
for fix in snap.check_fixes.get(&frange.file_id).into_iter().flatten() {
let fix_range = from_proto::text_range(&line_index, fix.range);
if fix_range.intersect(range).is_none() {
continue;
if fix_range.intersect(frange.range).is_some() {
acc.push(fix.action.clone());
}
acc.push(fix.action.clone());
}
Ok(())
}