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f10ee727
编写于
7月 15, 2019
作者:
C
Cyrus Najmabadi
浏览文件
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电子邮件补丁
差异文件
Make shared impl
上级
fba2e439
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
85 addition
and
47 deletion
+85
-47
src/Features/CSharp/Portable/IntroduceVariable/CSharpIntroduceLocalForExpressionCodeRefactoringProvider.cs
...harpIntroduceLocalForExpressionCodeRefactoringProvider.cs
+13
-44
src/Features/Core/Portable/IntroduceVariable/IntroduceLocalForExpressionCodeRefactoringProvider.cs
...ble/IntroduceLocalForExpressionCodeRefactoringProvider.cs
+72
-3
未找到文件。
src/Features/CSharp/Portable/IntroduceVariable/CSharpIntroduceLocalForExpressionCodeRefactoringProvider.cs
浏览文件 @
f10ee727
...
...
@@ -8,6 +8,7 @@
using
Microsoft.CodeAnalysis.CodeRefactorings
;
using
Microsoft.CodeAnalysis.CSharp.Extensions
;
using
Microsoft.CodeAnalysis.CSharp.Syntax
;
using
Microsoft.CodeAnalysis.IntroduceVariable
;
using
Microsoft.CodeAnalysis.LanguageServices
;
using
Microsoft.CodeAnalysis.Shared.Extensions
;
using
Microsoft.CodeAnalysis.Text
;
...
...
@@ -15,59 +16,30 @@
namespace
Microsoft.CodeAnalysis.CSharp.IntroduceVariable
{
[
ExportCodeRefactoringProvider
(
LanguageNames
.
CSharp
),
Shared
]
internal
class
CSharpIntroduceLocalForExpressionCodeRefactoringProvider
:
CodeRefactoringProvider
internal
class
CSharpIntroduceLocalForExpressionCodeRefactoringProvider
:
AbstractIntroduceLocalForExpressionCodeRefactoringProvider
<
StatementSyntax
,
ExpressionStatementSyntax
,
LocalDeclarationStatementSyntax
>
{
p
ublic
override
async
Task
ComputeRefactoringsAsync
(
CodeRefactoringContext
context
)
p
rotected
override
bool
IsValid
(
ExpressionStatementSyntax
expressionStatement
,
TextSpan
span
)
{
var
document
=
context
.
Document
;
var
span
=
context
.
Span
;
var
cancellationToken
=
context
.
CancellationToken
;
var
expressionStatement
=
await
GetExpressionStatementAsync
(
document
,
span
,
cancellationToken
).
ConfigureAwait
(
false
);
if
(
expressionStatement
==
null
)
{
return
;
}
var
expression
=
expressionStatement
.
Expression
;
// Expression is likely too simple to want to offer to generate a local for.
// This leads to too many false cases where this is offered.
if
(
span
.
IsEmpty
&&
expressionStatement
.
SemicolonToken
.
IsMissing
&&
expression
.
IsKind
(
SyntaxKind
.
IdentifierName
))
{
return
;
}
var
semanticModel
=
await
document
.
GetSemanticModelAsync
(
cancellationToken
).
ConfigureAwait
(
false
);
var
type
=
semanticModel
.
GetTypeInfo
(
expression
).
Type
;
if
(
type
==
null
||
type
.
SpecialType
==
SpecialType
.
System_Void
)
expressionStatement
.
Expression
.
IsKind
(
SyntaxKind
.
IdentifierName
))
{
return
;
return
false
;
}
var
syntaxFacts
=
document
.
GetLanguageService
<
ISyntaxFactsService
>();
var
singleLineExpression
=
syntaxFacts
.
ConvertToSingleLine
(
expression
);
var
nodeString
=
singleLineExpression
.
ToString
();
context
.
RegisterRefactoring
(
new
MyCodeAction
(
string
.
Format
(
FeaturesResources
.
Introduce_local_for_0
,
nodeString
),
c
=>
IntroduceLocalAsync
(
document
,
span
,
c
)));
return
true
;
}
private
static
async
Task
<
ExpressionStatementSyntax
>
GetExpressionStatementAsync
(
Document
document
,
TextSpan
span
,
CancellationToken
cancellationToken
)
{
var
helpers
=
document
.
GetLanguageService
<
IRefactoringHelpersService
>();
var
expressionStatement
=
await
helpers
.
TryGetSelectedNodeAsync
<
ExpressionStatementSyntax
>(
document
,
span
,
cancellationToken
).
ConfigureAwait
(
false
);
return
expressionStatement
;
}
private
async
Task
<
Document
>
IntroduceLocalAsync
(
Document
document
,
TextSpan
span
,
CancellationToken
cancellationToken
)
protected
override
async
Task
<
LocalDeclarationStatementSyntax
>
CreateLocalDeclarationAsync
(
Document
document
,
ExpressionStatementSyntax
expressionStatement
,
CancellationToken
cancellationToken
)
{
var
expressionStatement
=
await
GetExpressionStatementAsync
(
document
,
span
,
cancellationToken
).
ConfigureAwait
(
false
);
var
expression
=
expressionStatement
.
Expression
;
var
semicolon
=
expressionStatement
.
SemicolonToken
;
...
...
@@ -99,10 +71,7 @@ private async Task<Document> IntroduceLocalAsync(Document document, TextSpan spa
.
WithSemicolonToken
(
semicolon
)
.
WithLeadingTrivia
(
expression
.
GetLeadingTrivia
());
var
root
=
await
document
.
GetSyntaxRootAsync
(
cancellationToken
).
ConfigureAwait
(
false
);
var
newRoot
=
root
.
ReplaceNode
(
expressionStatement
,
localDeclaration
);
return
document
.
WithSyntaxRoot
(
newRoot
);
return
localDeclaration
;
}
private
class
MyCodeAction
:
CodeAction
.
DocumentChangeAction
...
...
src/Features/Core/Portable/IntroduceVariable/IntroduceLocalForExpressionCodeRefactoringProvider.cs
浏览文件 @
f10ee727
...
...
@@ -2,17 +2,86 @@
using
System
;
using
System.Collections.Generic
;
using
System.Composition
;
using
System.Text
;
using
System.Threading
;
using
System.Threading.Tasks
;
using
Microsoft.CodeAnalysis.CodeActions
;
using
Microsoft.CodeAnalysis.CodeRefactorings
;
using
Microsoft.CodeAnalysis.LanguageServices
;
using
Microsoft.CodeAnalysis.Shared.Extensions
;
using
Microsoft.CodeAnalysis.Text
;
namespace
Microsoft.CodeAnalysis.IntroduceVariable
{
internal
class
IntroduceLocalForExpressionCodeRefactoringProvider
:
CodeRefactoringProvider
internal
abstract
class
AbstractIntroduceLocalForExpressionCodeRefactoringProvider
<
TStatementSyntax
,
TExpressionStatementSyntax
,
TLocalDeclarationStatementSyntax
>
:
CodeRefactoringProvider
where
TStatementSyntax
:
SyntaxNode
where
TExpressionStatementSyntax
:
TStatementSyntax
where
TLocalDeclarationStatementSyntax
:
TStatementSyntax
{
public
override
Task
ComputeRefactoringsAsync
(
CodeRefactoringContext
context
)
protected
abstract
bool
IsValid
(
TExpressionStatementSyntax
expressionStatement
,
TextSpan
span
);
protected
abstract
Task
<
TLocalDeclarationStatementSyntax
>
CreateLocalDeclarationAsync
(
Document
document
,
TExpressionStatementSyntax
expressionStatement
,
CancellationToken
cancellationToken
);
public
sealed
override
async
Task
ComputeRefactoringsAsync
(
CodeRefactoringContext
context
)
{
var
document
=
context
.
Document
;
var
span
=
context
.
Span
;
var
cancellationToken
=
context
.
CancellationToken
;
var
expressionStatement
=
await
GetExpressionStatementAsync
(
document
,
span
,
cancellationToken
).
ConfigureAwait
(
false
);
if
(
expressionStatement
==
null
)
{
return
;
}
var
syntaxFacts
=
document
.
GetLanguageService
<
ISyntaxFactsService
>();
var
expression
=
syntaxFacts
.
GetExpressionOfExpressionStatement
(
expressionStatement
);
var
semanticModel
=
await
document
.
GetSemanticModelAsync
(
cancellationToken
).
ConfigureAwait
(
false
);
var
type
=
semanticModel
.
GetTypeInfo
(
expression
).
Type
;
if
(
type
==
null
||
type
.
SpecialType
==
SpecialType
.
System_Void
)
{
return
;
}
var
singleLineExpression
=
syntaxFacts
.
ConvertToSingleLine
(
expression
);
var
nodeString
=
singleLineExpression
.
ToString
();
context
.
RegisterRefactoring
(
new
MyCodeAction
(
string
.
Format
(
FeaturesResources
.
Introduce_local_for_0
,
nodeString
),
c
=>
IntroduceLocalAsync
(
document
,
span
,
c
)));
}
protected
async
Task
<
TExpressionStatementSyntax
>
GetExpressionStatementAsync
(
Document
document
,
TextSpan
span
,
CancellationToken
cancellationToken
)
{
var
helpers
=
document
.
GetLanguageService
<
IRefactoringHelpersService
>();
var
expressionStatement
=
await
helpers
.
TryGetSelectedNodeAsync
<
TExpressionStatementSyntax
>(
document
,
span
,
cancellationToken
).
ConfigureAwait
(
false
);
return
expressionStatement
!=
null
&&
IsValid
(
expressionStatement
,
span
)
?
expressionStatement
:
null
;
}
private
async
Task
<
Document
>
IntroduceLocalAsync
(
Document
document
,
TextSpan
span
,
CancellationToken
cancellationToken
)
{
var
expressionStatement
=
await
GetExpressionStatementAsync
(
document
,
span
,
cancellationToken
).
ConfigureAwait
(
false
);
var
localDeclaration
=
await
CreateLocalDeclarationAsync
(
document
,
expressionStatement
,
cancellationToken
).
ConfigureAwait
(
false
);
var
root
=
await
document
.
GetSyntaxRootAsync
(
cancellationToken
).
ConfigureAwait
(
false
);
var
newRoot
=
root
.
ReplaceNode
(
expressionStatement
,
localDeclaration
);
return
document
.
WithSyntaxRoot
(
newRoot
);
}
private
class
MyCodeAction
:
CodeAction
.
DocumentChangeAction
{
throw
new
NotImplementedException
();
public
MyCodeAction
(
string
title
,
Func
<
CancellationToken
,
Task
<
Document
>>
createChangedDocument
)
:
base
(
title
,
createChangedDocument
)
{
}
}
}
}
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