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53421f42
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体验新版 GitCode,发现更多精彩内容 >>
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53421f42
编写于
9月 22, 2020
作者:
G
Gen Lu
提交者:
GitHub
9月 22, 2020
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差异文件
Merge pull request #47857 from genlu/InferFirstArgumentType
Enter suggestion mode for potential lambda expression
上级
c7fcad34
16c4ec52
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
59 addition
and
4 deletion
+59
-4
src/EditorFeatures/CSharpTest/Completion/CompletionProviders/SuggestionModeCompletionProviderTests.cs
...pletionProviders/SuggestionModeCompletionProviderTests.cs
+52
-0
src/Workspaces/SharedUtilitiesAndExtensions/Workspace/CSharp/LanguageServices/CSharpTypeInferenceService.TypeInferrer.cs
...nguageServices/CSharpTypeInferenceService.TypeInferrer.cs
+7
-4
未找到文件。
src/EditorFeatures/CSharpTest/Completion/CompletionProviders/SuggestionModeCompletionProviderTests.cs
浏览文件 @
53421f42
...
...
@@ -1349,6 +1349,58 @@ void M(C test)
await
VerifyNotBuilderAsync
(
markup
);
}
[
WorkItem
(
46927
,
"https://github.com/dotnet/roslyn/issues/46927"
)]
[
Theory
,
CombinatorialData
,
Trait
(
Traits
.
Feature
,
Traits
.
Features
.
Completion
)]
public
async
Task
FirstArgumentOfInvocation_NoParameter
(
bool
hasTypedChar
)
{
var
markup
=
$@"
using System;
interface Foo
{{
bool
Bar
()
=>
true
;
}}
class P
{{
void
M
(
Foo
f
)
{{
f
.
Bar
({(
hasTypedChar
?
"s"
:
""
)}
$$
}}
}}
"
;
await
VerifyNotBuilderAsync
(
markup
);
}
[
WorkItem
(
46927
,
"https://github.com/dotnet/roslyn/issues/46927"
)]
[
Theory
,
CombinatorialData
,
Trait
(
Traits
.
Feature
,
Traits
.
Features
.
Completion
)]
public
async
Task
FirstArgumentOfInvocation_PossibleLambdaExpression
(
bool
isLambda
,
bool
hasTypedChar
)
{
var
overload
=
isLambda
?
"bool Bar(Func<int, bool> predicate) => true;"
:
"bool Bar(int x) => true;"
;
var
markup
=
$@"
using System;
interface Foo
{{
bool
Bar
()
=>
true
;
{
overload
}
}}
class P
{{
void
M
(
Foo
f
)
{{
f
.
Bar
({(
hasTypedChar
?
"s"
:
""
)}
$$
}}
}}
"
;
if
(
isLambda
)
{
await
VerifyBuilderAsync
(
markup
);
}
else
{
await
VerifyNotBuilderAsync
(
markup
);
}
}
private
async
Task
VerifyNotBuilderAsync
(
string
markup
)
=>
await
VerifyWorkerAsync
(
markup
,
isBuilder
:
false
);
...
...
src/Workspaces/SharedUtilitiesAndExtensions/Workspace/CSharp/LanguageServices/CSharpTypeInferenceService.TypeInferrer.cs
浏览文件 @
53421f42
...
...
@@ -458,10 +458,13 @@ private IEnumerable<TypeInferenceInfo> InferTypeInObjectCreationExpression(BaseO
var
info
=
SemanticModel
.
GetSymbolInfo
(
invocation
,
CancellationToken
);
var
methods
=
info
.
GetBestOrAllSymbols
().
OfType
<
IMethodSymbol
>();
// Overload resolution (see DevDiv 611477) in certain extension method cases
// can result in GetSymbolInfo returning nothing. In this case, get the
// method group info, which is what signature help already does.
if
(
info
.
Symbol
==
null
)
// 1. Overload resolution (see DevDiv 611477) in certain extension method cases
// can result in GetSymbolInfo returning nothing.
// 2. when trying to infer the type of the first argument, it's possible that nothing corresponding to
// the argument is typed and there exists an overload with 0 parameter as a viable match.
// In one of these cases, get the method group info, which is what signature help already does.
if
(
info
.
Symbol
==
null
||
argumentOpt
==
null
&&
info
.
Symbol
is
IMethodSymbol
method
&&
method
.
Parameters
.
Length
==
0
)
{
var
memberGroupMethods
=
SemanticModel
.
GetMemberGroup
(
invocation
.
Expression
,
CancellationToken
)
...
...
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