diff --git a/crates/ra_assists/src/assist_ctx.rs b/crates/ra_assists/src/assist_ctx.rs index 1a65b5dc07..879216a366 100644 --- a/crates/ra_assists/src/assist_ctx.rs +++ b/crates/ra_assists/src/assist_ctx.rs @@ -14,7 +14,7 @@ use crate::{AssistAction, AssistId, AssistLabel}; #[derive(Clone, Debug)] pub(crate) enum Assist { Unresolved { label: AssistLabel }, - Resolved { label: AssistLabel, action: AssistAction }, + Resolved { label: AssistLabel, action: AssistAction, alternative_actions: Vec }, } /// `AssistCtx` allows to apply an assist or check if it could be applied. @@ -81,18 +81,43 @@ impl<'a, DB: HirDatabase> AssistCtx<'a, DB> { self, id: AssistId, label: impl Into, - f: impl FnOnce(&mut AssistBuilder), + f: impl FnOnce(&mut ActionBuilder), ) -> Option { let label = AssistLabel { label: label.into(), id }; assert!(label.label.chars().nth(0).unwrap().is_uppercase()); let assist = if self.should_compute_edit { let action = { - let mut edit = AssistBuilder::default(); + let mut edit = ActionBuilder::default(); f(&mut edit); edit.build() }; - Assist::Resolved { label, action } + Assist::Resolved { label, action, alternative_actions: Vec::default() } + } else { + Assist::Unresolved { label } + }; + + Some(assist) + } + + #[allow(dead_code)] // will be used for auto import assist with multiple actions + pub(crate) fn add_assist_group( + self, + id: AssistId, + label: impl Into, + f: impl FnOnce() -> (ActionBuilder, Vec), + ) -> Option { + let label = AssistLabel { label: label.into(), id }; + let assist = if self.should_compute_edit { + let (action, alternative_actions) = f(); + Assist::Resolved { + label, + action: action.build(), + alternative_actions: alternative_actions + .into_iter() + .map(ActionBuilder::build) + .collect(), + } } else { Assist::Unresolved { label } }; @@ -128,13 +153,20 @@ impl<'a, DB: HirDatabase> AssistCtx<'a, DB> { } #[derive(Default)] -pub(crate) struct AssistBuilder { +pub(crate) struct ActionBuilder { edit: TextEditBuilder, cursor_position: Option, target: Option, + label: Option, } -impl AssistBuilder { +impl ActionBuilder { + #[allow(dead_code)] + /// Adds a custom label to the action, if it needs to be different from the assist label + pub fn label(&mut self, label: impl Into) { + self.label = Some(label.into()) + } + /// Replaces specified `range` of text with a given string. pub(crate) fn replace(&mut self, range: TextRange, replace_with: impl Into) { self.edit.replace(range, replace_with.into()) @@ -193,6 +225,7 @@ impl AssistBuilder { edit: self.edit.finish(), cursor_position: self.cursor_position, target: self.target, + label: self.label, } } } diff --git a/crates/ra_assists/src/assists/inline_local_variable.rs b/crates/ra_assists/src/assists/inline_local_variable.rs index 164aee90cd..45e0f983fe 100644 --- a/crates/ra_assists/src/assists/inline_local_variable.rs +++ b/crates/ra_assists/src/assists/inline_local_variable.rs @@ -4,7 +4,7 @@ use ra_syntax::{ TextRange, }; -use crate::assist_ctx::AssistBuilder; +use crate::assist_ctx::ActionBuilder; use crate::{Assist, AssistCtx, AssistId}; // Assist: inline_local_variable @@ -94,7 +94,7 @@ pub(crate) fn inline_local_varialbe(ctx: AssistCtx) -> Option< ctx.add_assist( AssistId("inline_local_variable"), "Inline variable", - move |edit: &mut AssistBuilder| { + move |edit: &mut ActionBuilder| { edit.delete(delete_range); for (desc, should_wrap) in refs.iter().zip(wrap_in_parens) { if should_wrap { diff --git a/crates/ra_assists/src/doc_tests.rs b/crates/ra_assists/src/doc_tests.rs index a8f8446cb6..21bee228da 100644 --- a/crates/ra_assists/src/doc_tests.rs +++ b/crates/ra_assists/src/doc_tests.rs @@ -15,16 +15,16 @@ fn check(assist_id: &str, before: &str, after: &str) { let (db, file_id) = TestDB::with_single_file(&before); let frange = FileRange { file_id, range: selection.into() }; - let (_assist_id, action) = crate::assists(&db, frange) + let (_assist_id, action, _) = crate::assists(&db, frange) .into_iter() - .find(|(id, _)| id.id.0 == assist_id) + .find(|(id, _, _)| id.id.0 == assist_id) .unwrap_or_else(|| { panic!( "\n\nAssist is not applicable: {}\nAvailable assists: {}", assist_id, crate::assists(&db, frange) .into_iter() - .map(|(id, _)| id.id.0) + .map(|(id, _, _)| id.id.0) .collect::>() .join(", ") ) diff --git a/crates/ra_assists/src/lib.rs b/crates/ra_assists/src/lib.rs index 150b34ac71..95a530821e 100644 --- a/crates/ra_assists/src/lib.rs +++ b/crates/ra_assists/src/lib.rs @@ -35,6 +35,7 @@ pub struct AssistLabel { #[derive(Debug, Clone)] pub struct AssistAction { + pub label: Option, pub edit: TextEdit, pub cursor_position: Option, pub target: Option, @@ -64,7 +65,7 @@ where /// /// Assists are returned in the "resolved" state, that is with edit fully /// computed. -pub fn assists(db: &H, range: FileRange) -> Vec<(AssistLabel, AssistAction)> +pub fn assists(db: &H, range: FileRange) -> Vec<(AssistLabel, AssistAction, Vec)> where H: HirDatabase + 'static, { @@ -75,7 +76,9 @@ where .iter() .filter_map(|f| f(ctx.clone())) .map(|a| match a { - Assist::Resolved { label, action } => (label, action), + Assist::Resolved { label, action, alternative_actions } => { + (label, action, alternative_actions) + } Assist::Unresolved { .. } => unreachable!(), }) .collect::>(); diff --git a/crates/ra_ide/src/assists.rs b/crates/ra_ide/src/assists.rs index e00589733b..db6e4e8b70 100644 --- a/crates/ra_ide/src/assists.rs +++ b/crates/ra_ide/src/assists.rs @@ -2,27 +2,46 @@ use ra_db::{FilePosition, FileRange}; -use crate::{db::RootDatabase, SourceChange, SourceFileEdit}; +use crate::{db::RootDatabase, FileId, SourceChange, SourceFileEdit}; pub use ra_assists::AssistId; +use ra_assists::{AssistAction, AssistLabel}; #[derive(Debug)] pub struct Assist { pub id: AssistId, pub change: SourceChange, + pub label: String, + pub alternative_changes: Vec, } pub(crate) fn assists(db: &RootDatabase, frange: FileRange) -> Vec { ra_assists::assists(db, frange) .into_iter() - .map(|(label, action)| { + .map(|(assist_label, action, alternative_actions)| { let file_id = frange.file_id; - let file_edit = SourceFileEdit { file_id, edit: action.edit }; - let id = label.id; - let change = SourceChange::source_file_edit(label.label, file_edit).with_cursor_opt( - action.cursor_position.map(|offset| FilePosition { offset, file_id }), - ); - Assist { id, change } + Assist { + id: assist_label.id, + label: assist_label.label.clone(), + change: action_to_edit(action, file_id, &assist_label), + alternative_changes: alternative_actions + .into_iter() + .map(|action| action_to_edit(action, file_id, &assist_label)) + .collect(), + } }) .collect() } + +fn action_to_edit( + action: AssistAction, + file_id: FileId, + assist_label: &AssistLabel, +) -> SourceChange { + let file_edit = SourceFileEdit { file_id, edit: action.edit }; + SourceChange::source_file_edit( + action.label.unwrap_or_else(|| assist_label.label.clone()), + file_edit, + ) + .with_cursor_opt(action.cursor_position.map(|offset| FilePosition { offset, file_id })) +} diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs index f2db575eab..ec3c0a557a 100644 --- a/crates/ra_lsp_server/src/main_loop/handlers.rs +++ b/crates/ra_lsp_server/src/main_loop/handlers.rs @@ -644,7 +644,6 @@ pub fn handle_code_action( let line_index = world.analysis().file_line_index(file_id)?; let range = params.range.conv_with(&line_index); - let assists = world.analysis().assists(FileRange { file_id, range })?.into_iter(); let diagnostics = world.analysis().diagnostics(file_id)?; let mut res = CodeActionResponse::default(); @@ -697,14 +696,19 @@ pub fn handle_code_action( res.push(action.into()); } - for assist in assists { - let title = assist.change.label.clone(); + for assist in world.analysis().assists(FileRange { file_id, range })?.into_iter() { + let title = assist.label.clone(); let edit = assist.change.try_conv_with(&world)?; + let alternative_edits = assist + .alternative_changes + .into_iter() + .map(|change| change.try_conv_with(&world)) + .collect::>>()?; let command = Command { title, command: "rust-analyzer.applySourceChange".to_string(), - arguments: Some(vec![to_value(edit).unwrap()]), + arguments: Some(vec![to_value(edit).unwrap(), to_value(alternative_edits).unwrap()]), }; let action = CodeAction { title: command.title.clone(), diff --git a/editors/code/src/commands/index.ts b/editors/code/src/commands/index.ts index 9a1697dcbe..0ff708b1fe 100644 --- a/editors/code/src/commands/index.ts +++ b/editors/code/src/commands/index.ts @@ -34,8 +34,8 @@ function showReferences(ctx: Ctx): Cmd { } function applySourceChange(ctx: Ctx): Cmd { - return async (change: sourceChange.SourceChange) => { - sourceChange.applySourceChange(ctx, change); + return async (change: sourceChange.SourceChange, alternativeChanges: sourceChange.SourceChange[] | undefined) => { + sourceChange.applySourceChange(ctx, change, alternativeChanges); }; } diff --git a/editors/code/src/source_change.ts b/editors/code/src/source_change.ts index a336269baa..b19d325d5d 100644 --- a/editors/code/src/source_change.ts +++ b/editors/code/src/source_change.ts @@ -9,7 +9,7 @@ export interface SourceChange { cursorPosition?: lc.TextDocumentPositionParams; } -export async function applySourceChange(ctx: Ctx, change: SourceChange) { +async function applySelectedSourceChange(ctx: Ctx, change: SourceChange) { const client = ctx.client; if (!client) return; @@ -55,3 +55,13 @@ export async function applySourceChange(ctx: Ctx, change: SourceChange) { ); } } + +export async function applySourceChange(ctx: Ctx, change: SourceChange, alternativeChanges: SourceChange[] | undefined) { + if (alternativeChanges !== undefined && alternativeChanges.length > 0) { + const selectedChange = await vscode.window.showQuickPick([change, ...alternativeChanges]); + if (!selectedChange) return; + await applySelectedSourceChange(ctx, selectedChange); + } else { + await applySelectedSourceChange(ctx, change); + } +}