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Add parens for enums

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This commit is contained in:
Aleksey Kladov 2020-04-03 19:33:12 +02:00
parent b1cf95f691
commit a5e8dfd024
4 changed files with 175 additions and 46 deletions
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2
crates/ra_ide/src/completion/complete_dot.rs
View file

@ -61,7 +61,7 @@ fn complete_methods(acc: &mut Completions, ctx: &CompletionContext, receiver: &T
&& ctx.scope().module().map_or(true, |m| func.is_visible_from(ctx.db, m))
&& seen_methods.insert(func.name(ctx.db))
{
acc.add_function(ctx, func);
acc.add_function(ctx, func, None);
}
None::<()>
});

24
crates/ra_ide/src/completion/complete_path.rs
View file

@ -38,7 +38,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
hir::ModuleDef::Adt(_) | hir::ModuleDef::TypeAlias(_) => {
if let hir::ModuleDef::Adt(Adt::Enum(e)) = def {
for variant in e.variants(ctx.db) {
acc.add_enum_variant(ctx, variant);
acc.add_enum_variant(ctx, variant, None);
}
}
let ty = match def {
@ -58,7 +58,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
match item {
hir::AssocItem::Function(func) => {
if !func.has_self_param(ctx.db) {
acc.add_function(ctx, func);
acc.add_function(ctx, func, None);
}
}
hir::AssocItem::Const(ct) => acc.add_const(ctx, ct),
@ -87,7 +87,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
match item {
hir::AssocItem::Function(func) => {
if !func.has_self_param(ctx.db) {
acc.add_function(ctx, func);
acc.add_function(ctx, func, None);
}
}
hir::AssocItem::Const(ct) => acc.add_const(ctx, ct),
@ -355,15 +355,17 @@ mod tests {
@r###"
[
CompletionItem {
label: "Bar",
label: "Bar(…)",
source_range: [116; 116),
delete: [116; 116),
insert: "Bar",
insert: "Bar($0)",
kind: EnumVariant,
lookup: "Bar",
detail: "(i32)",
documentation: Documentation(
"Bar Variant with i32",
),
trigger_call_info: true,
},
CompletionItem {
label: "Foo",
@ -403,15 +405,17 @@ mod tests {
@r###"
[
CompletionItem {
label: "Bar",
label: "Bar(…)",
source_range: [180; 180),
delete: [180; 180),
insert: "Bar",
insert: "Bar($0)",
kind: EnumVariant,
lookup: "Bar",
detail: "(i32, u32)",
documentation: Documentation(
"Bar Variant with i32 and u32",
),
trigger_call_info: true,
},
CompletionItem {
label: "Foo",
@ -425,15 +429,17 @@ mod tests {
),
},
CompletionItem {
label: "S",
label: "S(…)",
source_range: [180; 180),
delete: [180; 180),
insert: "S",
insert: "S($0)",
kind: EnumVariant,
lookup: "S",
detail: "(S)",
documentation: Documentation(
"",
),
trigger_call_info: true,
},
]
"###

1
crates/ra_ide/src/completion/complete_pattern.rs
View file

@ -77,6 +77,7 @@ mod tests {
delete: [246; 246),
insert: "X",
kind: EnumVariant,
detail: "()",
},
CompletionItem {
label: "Z",

194
crates/ra_ide/src/completion/presentation.rs
View file

@ -57,14 +57,16 @@ impl Completions {
let kind = match resolution {
ScopeDef::ModuleDef(Module(..)) => CompletionItemKind::Module,
ScopeDef::ModuleDef(Function(func)) => {
return self.add_function_with_name(ctx, Some(local_name), *func);
return self.add_function(ctx, *func, Some(local_name));
}
ScopeDef::ModuleDef(Adt(hir::Adt::Struct(_))) => CompletionItemKind::Struct,
// FIXME: add CompletionItemKind::Union
ScopeDef::ModuleDef(Adt(hir::Adt::Union(_))) => CompletionItemKind::Struct,
ScopeDef::ModuleDef(Adt(hir::Adt::Enum(_))) => CompletionItemKind::Enum,
ScopeDef::ModuleDef(EnumVariant(..)) => CompletionItemKind::EnumVariant,
ScopeDef::ModuleDef(EnumVariant(var)) => {
return self.add_enum_variant(ctx, *var, Some(local_name));
}
ScopeDef::ModuleDef(Const(..)) => CompletionItemKind::Const,
ScopeDef::ModuleDef(Static(..)) => CompletionItemKind::Static,
ScopeDef::ModuleDef(Trait(..)) => CompletionItemKind::Trait,
@ -125,10 +127,6 @@ impl Completions {
completion_item.kind(kind).set_documentation(docs).add_to(self)
}
pub(crate) fn add_function(&mut self, ctx: &CompletionContext, func: hir::Function) {
self.add_function_with_name(ctx, None, func)
}
fn guess_macro_braces(&self, macro_name: &str, docs: &str) -> &'static str {
let mut votes = [0, 0, 0];
for (idx, s) in docs.match_indices(&macro_name) {
@ -187,15 +185,15 @@ impl Completions {
self.add(builder);
}
fn add_function_with_name(
pub(crate) fn add_function(
&mut self,
ctx: &CompletionContext,
name: Option<String>,
func: hir::Function,
local_name: Option<String>,
) {
let has_self_param = func.has_self_param(ctx.db);
let name = name.unwrap_or_else(|| func.name(ctx.db).to_string());
let name = local_name.unwrap_or_else(|| func.name(ctx.db).to_string());
let ast_node = func.source(ctx.db).value;
let function_signature = FunctionSignature::from(&ast_node);
@ -217,7 +215,7 @@ impl Completions {
.cloned()
.collect();
builder = builder.add_call_parens(ctx, name, params);
builder = builder.add_call_parens(ctx, name, Params::Named(params));
self.add(builder)
}
@ -254,14 +252,20 @@ impl Completions {
.add_to(self);
}
pub(crate) fn add_enum_variant(&mut self, ctx: &CompletionContext, variant: hir::EnumVariant) {
pub(crate) fn add_enum_variant(
&mut self,
ctx: &CompletionContext,
variant: hir::EnumVariant,
local_name: Option<String>,
) {
let is_deprecated = is_deprecated(variant, ctx.db);
let name = variant.name(ctx.db);
let name = local_name.unwrap_or_else(|| variant.name(ctx.db).to_string());
let detail_types = variant
.fields(ctx.db)
.into_iter()
.map(|field| (field.name(ctx.db), field.signature_ty(ctx.db)));
let detail = match variant.kind(ctx.db) {
let variant_kind = variant.kind(ctx.db);
let detail = match variant_kind {
StructKind::Tuple | StructKind::Unit => detail_types
.map(|(_, t)| t.display(ctx.db).to_string())
.sep_by(", ")
@ -273,22 +277,42 @@ impl Completions {
.surround_with("{ ", " }")
.to_string(),
};
CompletionItem::new(CompletionKind::Reference, ctx.source_range(), name.to_string())
.kind(CompletionItemKind::EnumVariant)
.set_documentation(variant.docs(ctx.db))
.set_deprecated(is_deprecated)
.detail(detail)
.add_to(self);
let mut res =
CompletionItem::new(CompletionKind::Reference, ctx.source_range(), name.clone())
.kind(CompletionItemKind::EnumVariant)
.set_documentation(variant.docs(ctx.db))
.set_deprecated(is_deprecated)
.detail(detail);
if variant_kind == StructKind::Tuple {
let params = Params::Anonymous(variant.fields(ctx.db).len());
res = res.add_call_parens(ctx, name, params)
}
res.add_to(self);
}
}
enum Params {
Named(Vec<String>),
Anonymous(usize),
}
impl Params {
fn len(&self) -> usize {
match self {
Params::Named(xs) => xs.len(),
Params::Anonymous(len) => *len,
}
}
fn is_empty(&self) -> bool {
self.len() == 0
}
}
impl Builder {
fn add_call_parens(
mut self,
ctx: &CompletionContext,
name: String,
params: Vec<String>,
) -> Builder {
fn add_call_parens(mut self, ctx: &CompletionContext, name: String, params: Params) -> Builder {
if !ctx.config.add_call_parenthesis {
return self;
}
@ -302,15 +326,16 @@ impl Builder {
(format!("{}()$0", name), format!("{}()", name))
} else {
self = self.trigger_call_info();
let snippet = if ctx.config.add_call_argument_snippets {
let function_params_snippet = params
.iter()
.enumerate()
.map(|(index, param_name)| format!("${{{}:{}}}", index + 1, param_name))
.sep_by(", ");
format!("{}({})$0", name, function_params_snippet)
} else {
format!("{}($0)", name)
let snippet = match (ctx.config.add_call_argument_snippets, params) {
(true, Params::Named(params)) => {
let function_params_snippet = params
.iter()
.enumerate()
.map(|(index, param_name)| format!("${{{}:{}}}", index + 1, param_name))
.sep_by(", ");
format!("{}({})$0", name, function_params_snippet)
}
_ => format!("{}($0)", name),
};
(snippet, format!("{}(…)", name))
@ -385,12 +410,14 @@ mod tests {
@r###"
[
CompletionItem {
label: "Foo",
label: "Foo(…)",
source_range: [115; 117),
delete: [115; 117),
insert: "Foo",
insert: "Foo($0)",
kind: EnumVariant,
lookup: "Foo",
detail: "(i32, i32)",
trigger_call_info: true,
},
]"###
);
@ -564,6 +591,101 @@ mod tests {
);
}
#[test]
fn inserts_parens_for_tuple_enums() {
assert_debug_snapshot!(
do_reference_completion(
r"
enum Option<T> { Some(T), None }
use Option::*;
fn main() -> Option<i32> {
Som<|>
}
"
),
@r###"
[
CompletionItem {
label: "None",
source_range: [144; 147),
delete: [144; 147),
insert: "None",
kind: EnumVariant,
detail: "()",
},
CompletionItem {
label: "Option",
source_range: [144; 147),
delete: [144; 147),
insert: "Option",
kind: Enum,
},
CompletionItem {
label: "Some(…)",
source_range: [144; 147),
delete: [144; 147),
insert: "Some($0)",
kind: EnumVariant,
lookup: "Some",
detail: "(T)",
trigger_call_info: true,
},
CompletionItem {
label: "main()",
source_range: [144; 147),
delete: [144; 147),
insert: "main()$0",
kind: Function,
lookup: "main",
detail: "fn main() -> Option<i32>",
},
]
"###
);
assert_debug_snapshot!(
do_reference_completion(
r"
enum Option<T> { Some(T), None }
use Option::*;
fn main(value: Option<i32>) {
match value {
Som<|>
}
}
"
),
@r###"
[
CompletionItem {
label: "None",
source_range: [185; 188),
delete: [185; 188),
insert: "None",
kind: EnumVariant,
detail: "()",
},
CompletionItem {
label: "Option",
source_range: [185; 188),
delete: [185; 188),
insert: "Option",
kind: Enum,
},
CompletionItem {
label: "Some(…)",
source_range: [185; 188),
delete: [185; 188),
insert: "Some($0)",
kind: EnumVariant,
lookup: "Some",
detail: "(T)",
trigger_call_info: true,
},
]
"###
);
}
#[test]
fn arg_snippets_for_method_call() {
assert_debug_snapshot!(