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Simplify

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This commit is contained in:
Lukas Wirth 2021-09-13 18:50:19 +02:00
parent 1ef4b2cb7b
commit a044175412
18 changed files with 91 additions and 86 deletions
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94
crates/hir_ty/src/lower.rs
View File

@ -410,52 +410,60 @@ impl<'a> TyLoweringContext<'a> {
) -> (Ty, Option<TypeNs>) {
let ty = match resolution {
TypeNs::TraitId(trait_) => {
let ty = if remaining_segments.len() == 1 {
let trait_ref =
self.lower_trait_ref_from_resolved_path(trait_, resolved_segment, None);
let segment = remaining_segments.first().unwrap();
let found = self
.db
.trait_data(trait_ref.hir_trait_id())
.associated_type_by_name(segment.name);
match found {
Some(associated_ty) => {
// FIXME handle type parameters on the segment
TyKind::Alias(AliasTy::Projection(ProjectionTy {
associated_ty_id: to_assoc_type_id(associated_ty),
substitution: trait_ref.substitution,
}))
.intern(&Interner)
}
None => {
// FIXME: report error (associated type not found)
TyKind::Error.intern(&Interner)
let ty = match remaining_segments.len() {
1 => {
let trait_ref =
self.lower_trait_ref_from_resolved_path(trait_, resolved_segment, None);
let segment = remaining_segments.first().unwrap();
let found = self
.db
.trait_data(trait_ref.hir_trait_id())
.associated_type_by_name(segment.name);
match found {
Some(associated_ty) => {
// FIXME handle type parameters on the segment
TyKind::Alias(AliasTy::Projection(ProjectionTy {
associated_ty_id: to_assoc_type_id(associated_ty),
substitution: trait_ref.substitution,
}))
.intern(&Interner)
}
None => {
// FIXME: report error (associated type not found)
TyKind::Error.intern(&Interner)
}
}
}
} else if remaining_segments.len() > 1 {
// FIXME report error (ambiguous associated type)
TyKind::Error.intern(&Interner)
} else {
let self_ty = Some(
TyKind::BoundVar(BoundVar::new(DebruijnIndex::INNERMOST, 0))
.intern(&Interner),
);
let trait_ref = self.with_shifted_in(DebruijnIndex::ONE, |ctx| {
ctx.lower_trait_ref_from_resolved_path(trait_, resolved_segment, self_ty)
});
let dyn_ty = DynTy {
bounds: crate::make_only_type_binders(
1,
QuantifiedWhereClauses::from_iter(
&Interner,
Some(crate::wrap_empty_binders(WhereClause::Implemented(
trait_ref,
))),
0 => {
let self_ty = Some(
TyKind::BoundVar(BoundVar::new(DebruijnIndex::INNERMOST, 0))
.intern(&Interner),
);
let trait_ref = self.with_shifted_in(DebruijnIndex::ONE, |ctx| {
ctx.lower_trait_ref_from_resolved_path(
trait_,
resolved_segment,
self_ty,
)
});
let dyn_ty = DynTy {
bounds: crate::make_only_type_binders(
1,
QuantifiedWhereClauses::from_iter(
&Interner,
Some(crate::wrap_empty_binders(WhereClause::Implemented(
trait_ref,
))),
),
),
),
lifetime: static_lifetime(),
};
TyKind::Dyn(dyn_ty).intern(&Interner)
lifetime: static_lifetime(),
};
TyKind::Dyn(dyn_ty).intern(&Interner)
}
_ => {
// FIXME report error (ambiguous associated type)
TyKind::Error.intern(&Interner)
}
};
return (ty, None);
}

4
crates/hir_ty/src/method_resolution.rs
View File

@ -697,7 +697,7 @@ fn iterate_trait_method_candidates(
}
known_implemented = true;
// FIXME: we shouldn't be ignoring the binders here
callback(&self_ty, *item)?
callback(self_ty, *item)?
}
}
ControlFlow::Continue(())
@ -773,7 +773,7 @@ fn iterate_inherent_methods(
cov_mark::hit!(impl_self_type_match_without_receiver);
continue;
}
let receiver_ty = receiver_ty.unwrap_or(&self_ty);
let receiver_ty = receiver_ty.unwrap_or(self_ty);
callback(receiver_ty, item)?;
}
}

2
crates/ide_assists/src/assist_context.rs
View File

@ -167,7 +167,7 @@ impl Assists {
None
};
let label = Label::new(label.into());
let label = Label::new(label);
let group = group.cloned();
self.buf.push(Assist { id, label, group, target, source_change });
Some(())

4
crates/ide_assists/src/handlers/convert_bool_then.rs
View File

@ -198,7 +198,7 @@ fn option_variants(
sema: &Semantics<RootDatabase>,
expr: &SyntaxNode,
) -> Option<(hir::Variant, hir::Variant)> {
let fam = FamousDefs(&sema, sema.scope(expr).krate());
let fam = FamousDefs(sema, sema.scope(expr).krate());
let option_variants = fam.core_option_Option()?.variants(sema.db);
match &*option_variants {
&[variant0, variant1] => Some(if variant0.name(sema.db) == known::None {
@ -224,7 +224,7 @@ fn is_invalid_body(
invalid
});
if !invalid {
for_each_tail_expr(&expr, &mut |e| {
for_each_tail_expr(expr, &mut |e| {
if invalid {
return;
}

4
crates/ide_assists/src/handlers/convert_tuple_struct_to_named_struct.rs
View File

@ -110,7 +110,9 @@ fn edit_struct_def(
} else {
edit.insert(tuple_fields_text_range.start(), ast::make::tokens::single_space().text());
}
strukt.semicolon_token().map(|t| edit.delete(t.text_range()));
if let Some(t) = strukt.semicolon_token() {
edit.delete(t.text_range());
}
} else {
edit.insert(tuple_fields_text_range.start(), ast::make::tokens::single_space().text());
}

6
crates/ide_assists/src/handlers/expand_glob_import.rs
View File

@ -227,14 +227,12 @@ fn find_imported_defs(ctx: &AssistContext, star: SyntaxToken) -> Option<Vec<Def>
Some(
[Direction::Prev, Direction::Next]
.iter()
.map(|dir| {
.flat_map(|dir| {
parent_use_item_syntax
.siblings(dir.to_owned())
.filter(|n| ast::Use::can_cast(n.kind()))
})
.flatten()
.filter_map(|n| Some(n.descendants().filter_map(ast::NameRef::cast)))
.flatten()
.flat_map(|n| n.descendants().filter_map(ast::NameRef::cast))
.filter_map(|r| match NameRefClass::classify(&ctx.sema, &r)? {
NameRefClass::Definition(Definition::ModuleDef(def)) => Some(Def::ModuleDef(def)),
NameRefClass::Definition(Definition::Macro(def)) => Some(Def::MacroDef(def)),

9
crates/ide_assists/src/handlers/extract_function.rs
View File

@ -885,12 +885,9 @@ fn reference_is_exclusive(
/// checks if this expr requires `&mut` access, recurses on field access
fn expr_require_exclusive_access(ctx: &AssistContext, expr: &ast::Expr) -> Option<bool> {
match expr {
ast::Expr::MacroCall(_) => {
// FIXME: expand macro and check output for mutable usages of the variable?
return None;
}
_ => (),
if let ast::Expr::MacroCall(_) = expr {
// FIXME: expand macro and check output for mutable usages of the variable?
return None;
}
let parent = expr.syntax().parent()?;

8
crates/ide_assists/src/handlers/extract_struct_from_enum_variant.rs
View File

@ -231,7 +231,7 @@ fn create_struct_def(
let variant_attrs = attrs_and_docs(variant.syntax())
.map(|tok| match tok.kind() {
WHITESPACE => make::tokens::single_newline().into(),
_ => tok.into(),
_ => tok,
})
.collect();
ted::insert_all(Position::first_child_of(strukt.syntax()), variant_attrs);
@ -251,12 +251,14 @@ fn update_variant(variant: &ast::Variant, generic: Option<ast::GenericParamList>
Some(gpl) => {
let gpl = gpl.clone_for_update();
gpl.generic_params().for_each(|gp| {
match gp {
let tbl = match gp {
ast::GenericParam::LifetimeParam(it) => it.type_bound_list(),
ast::GenericParam::TypeParam(it) => it.type_bound_list(),
ast::GenericParam::ConstParam(_) => return,
};
if let Some(tbl) = tbl {
tbl.remove();
}
.map(|it| it.remove());
});
make::ty(&format!("{}<{}>", name.text(), gpl.generic_params().join(", ")))
}

4
crates/ide_assists/src/handlers/extract_variable.rs
View File

@ -79,7 +79,7 @@ pub(crate) fn extract_variable(acc: &mut Assists, ctx: &AssistContext) -> Option
if let Anchor::Replace(stmt) = anchor {
cov_mark::hit!(test_extract_var_expr_stmt);
if stmt.semicolon_token().is_none() {
buf.push_str(";");
buf.push(';');
}
match ctx.config.snippet_cap {
Some(cap) => {
@ -92,7 +92,7 @@ pub(crate) fn extract_variable(acc: &mut Assists, ctx: &AssistContext) -> Option
return;
}
buf.push_str(";");
buf.push(';');
// We want to maintain the indent level,
// but we do not want to duplicate possible

12
crates/ide_assists/src/handlers/generate_function.rs
View File

@ -109,7 +109,7 @@ fn gen_fn(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
};
let function_builder = FunctionBuilder::from_call(ctx, &call, &path, target_module, target)?;
let text_range = call.syntax().text_range();
let label = format!("Generate {} function", function_builder.fn_name.clone());
let label = format!("Generate {} function", function_builder.fn_name);
add_func_to_accumulator(
acc,
ctx,
@ -139,7 +139,7 @@ fn gen_method(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
FunctionBuilder::from_method_call(ctx, &call, &fn_name, target_module, target)?;
let text_range = call.syntax().text_range();
let adt_name = if impl_.is_none() { Some(adt.name(ctx.sema.db)) } else { None };
let label = format!("Generate {} method", function_builder.fn_name.clone());
let label = format!("Generate {} method", function_builder.fn_name);
add_func_to_accumulator(
acc,
ctx,
@ -369,7 +369,7 @@ fn make_return_type(
}
}
};
let ret_type = ret_ty.map(|rt| make::ret_type(rt));
let ret_type = ret_ty.map(make::ret_type);
(ret_type, should_focus_return_type)
}
@ -386,7 +386,7 @@ fn get_fn_target(
file = in_file;
target
}
None => next_space_for_fn_after_call_site(FuncExpr::Func(call.clone()))?,
None => next_space_for_fn_after_call_site(FuncExpr::Func(call))?,
};
Some((target.clone(), file, get_insert_offset(&target)))
}
@ -397,7 +397,7 @@ fn get_method_target(
impl_: &Option<ast::Impl>,
) -> Option<(GeneratedFunctionTarget, TextSize)> {
let target = match impl_ {
Some(impl_) => next_space_for_fn_in_impl(&impl_)?,
Some(impl_) => next_space_for_fn_in_impl(impl_)?,
None => {
next_space_for_fn_in_module(ctx.sema.db, &target_module.definition_source(ctx.sema.db))?
.1
@ -448,7 +448,7 @@ fn fn_args(
});
arg_types.push(match fn_arg_type(ctx, target_module, &arg) {
Some(ty) => {
if ty.len() > 0 && ty.starts_with('&') {
if !ty.is_empty() && ty.starts_with('&') {
if let Some((new_ty, _)) = useless_type_special_case("", &ty[1..].to_owned()) {
new_ty
} else {

2
crates/ide_assists/src/handlers/inline_call.rs
View File

@ -199,7 +199,7 @@ pub(crate) fn inline_(
.sema
.type_of_expr(&expr)
.filter(TypeInfo::has_adjustment)
.and_then(|_| param_ty);
.and(param_ty);
body.push_front(
make::let_stmt(pat, ty, Some(expr)).clone_for_update().into(),
)

7
crates/ide_assists/src/handlers/introduce_named_lifetime.rs
View File

@ -77,7 +77,7 @@ fn generate_fn_def_assist(
})
.collect();
match fn_params_without_lifetime.len() {
1 => Some(fn_params_without_lifetime.into_iter().nth(0)?),
1 => Some(fn_params_without_lifetime.into_iter().next()?),
0 => None,
// multiple unnnamed is invalid. assist is not applicable
_ => return None,
@ -93,8 +93,9 @@ fn generate_fn_def_assist(
make::lifetime_param(new_lifetime_param.clone()).clone_for_update().into(),
);
ted::replace(lifetime.syntax(), new_lifetime_param.clone_for_update().syntax());
loc_needing_lifetime
.map(|position| ted::insert(position, new_lifetime_param.clone_for_update().syntax()));
if let Some(position) = loc_needing_lifetime {
ted::insert(position, new_lifetime_param.clone_for_update().syntax());
}
})
}

2
crates/ide_assists/src/handlers/raw_string.rs
View File

@ -35,7 +35,7 @@ pub(crate) fn make_raw_string(acc: &mut Assists, ctx: &AssistContext) -> Option<
if matches!(value, Cow::Borrowed(_)) {
// Avoid replacing the whole string to better position the cursor.
edit.insert(token.syntax().text_range().start(), format!("r{}", hashes));
edit.insert(token.syntax().text_range().end(), format!("{}", hashes));
edit.insert(token.syntax().text_range().end(), hashes);
} else {
edit.replace(
token.syntax().text_range(),

2
crates/ide_assists/src/handlers/remove_unused_param.rs
View File

@ -137,7 +137,7 @@ fn process_usage(
return Some(range_to_remove(arg.syntax()));
}
return None;
None
}
fn range_to_remove(node: &SyntaxNode) -> TextRange {

8
crates/ide_assists/src/handlers/replace_if_let_with_match.rs
View File

@ -126,7 +126,7 @@ fn make_else_arm(
if let Some(else_block) = else_block {
let pattern = if let [(Either::Left(pat), _)] = conditionals {
ctx.sema
.type_of_pat(&pat)
.type_of_pat(pat)
.and_then(|ty| TryEnum::from_ty(&ctx.sema, &ty.adjusted()))
.zip(Some(pat))
} else {
@ -134,7 +134,7 @@ fn make_else_arm(
};
let pattern = match pattern {
Some((it, pat)) => {
if does_pat_match_variant(&pat, &it.sad_pattern()) {
if does_pat_match_variant(pat, &it.sad_pattern()) {
it.happy_pattern()
} else {
it.sad_pattern()
@ -144,7 +144,7 @@ fn make_else_arm(
};
make::match_arm(iter::once(pattern), None, unwrap_trivial_block(else_block))
} else {
make::match_arm(iter::once(make::wildcard_pat().into()), None, make::expr_unit().into())
make::match_arm(iter::once(make::wildcard_pat().into()), None, make::expr_unit())
}
}
@ -257,7 +257,7 @@ fn is_empty_expr(expr: &ast::Expr) -> bool {
}
fn binds_name(sema: &hir::Semantics<RootDatabase>, pat: &ast::Pat) -> bool {
let binds_name_v = |pat| binds_name(&sema, &pat);
let binds_name_v = |pat| binds_name(sema, &pat);
match pat {
ast::Pat::IdentPat(pat) => !matches!(
pat.name().and_then(|name| NameClass::classify(sema, &name)),

5
crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs
View File

@ -141,10 +141,7 @@ fn path_eq_no_generics(lhs: ast::Path, rhs: ast::Path) -> bool {
&& lhs
.name_ref()
.zip(rhs.name_ref())
.map_or(false, |(lhs, rhs)| lhs.text() == rhs.text()) =>
{
()
}
.map_or(false, |(lhs, rhs)| lhs.text() == rhs.text()) => {}
_ => return false,
}

2
crates/ide_assists/src/handlers/toggle_ignore.rs
View File

@ -33,7 +33,7 @@ pub(crate) fn toggle_ignore(acc: &mut Assists, ctx: &AssistContext) -> Option<()
AssistId("toggle_ignore", AssistKind::None),
"Ignore this test",
attr.syntax().text_range(),
|builder| builder.insert(attr.syntax().text_range().end(), &format!("\n#[ignore]")),
|builder| builder.insert(attr.syntax().text_range().end(), "\n#[ignore]"),
),
Some(ignore_attr) => acc.add(
AssistId("toggle_ignore", AssistKind::None),

2
crates/proc_macro_api/src/lib.rs
View File

@ -130,7 +130,7 @@ impl ProcMacroServer {
.into_iter()
.map(|(name, kind)| ProcMacro {
process: self.process.clone(),
name: name.into(),
name,
kind,
dylib_path: dylib.path.clone(),
})