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c121b5b2
编写于
6月 13, 2017
作者:
F
Fredric Silberberg
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差异文件
Added tests for unbound lambdas in the operation tree.
上级
d319dc7c
变更
2
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2 changed file
with
117 addition
and
0 deletion
+117
-0
src/Compilers/CSharp/Test/Semantic/CSharpCompilerSemanticTest.csproj
...rs/CSharp/Test/Semantic/CSharpCompilerSemanticTest.csproj
+1
-0
src/Compilers/CSharp/Test/Semantic/IOperation/IOperationTests_ILambdaExpression.cs
.../Semantic/IOperation/IOperationTests_ILambdaExpression.cs
+116
-0
未找到文件。
src/Compilers/CSharp/Test/Semantic/CSharpCompilerSemanticTest.csproj
浏览文件 @
c121b5b2
...
...
@@ -65,6 +65,7 @@
<Compile
Include=
"IOperation\IOperationTests_IArgument.cs"
/>
<Compile
Include=
"IOperation\IOperationTests_IIfStatement.cs"
/>
<Compile
Include=
"IOperation\IOperationTests_IFieldReferenceExpression.cs"
/>
<Compile
Include=
"IOperation\IOperationTests_ILambdaExpression.cs"
/>
<Compile
Include=
"IOperation\IOperationTests_IObjectCreationExpression.cs"
/>
<Compile
Include=
"IOperation\IOperationTests_IParameterReferenceExpression.cs"
/>
<Compile
Include=
"IOperation\IOperationTests_IReturnStatement.cs"
/>
...
...
src/Compilers/CSharp/Test/Semantic/IOperation/IOperationTests_ILambdaExpression.cs
0 → 100644
浏览文件 @
c121b5b2
using
Microsoft.CodeAnalysis.CSharp.Syntax
;
using
Microsoft.CodeAnalysis.Test.Utilities
;
using
Xunit
;
namespace
Microsoft.CodeAnalysis.CSharp.UnitTests
{
internal
partial
class
IOperationTests
:
SemanticModelTestBase
{
[
Fact
]
public
void
ILambdaExpression_BoundLambda_HasValidLambdaExpressionTree
()
{
string
source
=
@"
using System;
class Program
{
static void Main(string[] args)
{
Action x /*<bind>*/= () => F()/*</bind>*/;
}
static void F()
{
}
}
"
;
string
expectedOperationTree
=
@"
IVariableDeclarationStatement (1 declarations) (OperationKind.VariableDeclarationStatement) (Syntax: 'Action x /* ... *</bind>*/;')
IVariableDeclaration (1 variables) (OperationKind.VariableDeclaration) (Syntax: 'Action x /* ... *</bind>*/;')
Variables: Local_1: System.Action x
Initializer: IConversionExpression (ConversionKind.CSharp, Implicit) (OperationKind.ConversionExpression, Type: System.Action) (Syntax: '() => F()')
ILambdaExpression (Signature: lambda expression) (OperationKind.LambdaExpression, Type: null) (Syntax: '() => F()')
IBlockStatement (2 statements) (OperationKind.BlockStatement) (Syntax: 'F()')
IExpressionStatement (OperationKind.ExpressionStatement) (Syntax: 'F()')
IInvocationExpression (static void Program.F()) (OperationKind.InvocationExpression, Type: System.Void) (Syntax: 'F()')
IReturnStatement (OperationKind.ReturnStatement) (Syntax: 'F()')
"
;
var
expectedDiagnostics
=
DiagnosticDescription
.
None
;
VerifyOperationTreeAndDiagnosticsForTest
<
EqualsValueClauseSyntax
>(
source
,
expectedOperationTree
,
expectedDiagnostics
);
}
[
Fact
]
public
void
ILambdaExpression_UnboundLambdaAsVar_HasValidLambdaExpressionTree
()
{
string
source
=
@"
using System;
class Program
{
static void Main(string[] args)
{
var x /*<bind>*/= () => F()/*</bind>*/;
}
static void F()
{
}
}
"
;
string
expectedOperationTree
=
@"
IVariableDeclarationStatement (1 declarations) (OperationKind.VariableDeclarationStatement, IsInvalid) (Syntax: 'var x /*<bi ... *</bind>*/;')
IVariableDeclaration (1 variables) (OperationKind.VariableDeclaration) (Syntax: 'var x /*<bi ... *</bind>*/;')
Variables: Local_1: var x
Initializer: ILambdaExpression (Signature: lambda expression) (OperationKind.LambdaExpression, Type: null) (Syntax: '() => F()')
IBlockStatement (1 statements) (OperationKind.BlockStatement) (Syntax: 'F()')
IExpressionStatement (OperationKind.ExpressionStatement) (Syntax: 'F()')
IInvocationExpression (static void Program.F()) (OperationKind.InvocationExpression, Type: System.Void) (Syntax: 'F()')
"
;
var
expectedDiagnostics
=
new
DiagnosticDescription
[]
{
// CS0815: Cannot assign lambda expression to an implicitly-typed variable
// var x /*<bind>*/= () => F()/*</bind>*/;
Diagnostic
(
ErrorCode
.
ERR_ImplicitlyTypedVariableAssignedBadValue
,
"x /*<bind>*/= () => F()"
).
WithArguments
(
"lambda expression"
).
WithLocation
(
8
,
13
),
};
VerifyOperationTreeAndDiagnosticsForTest
<
EqualsValueClauseSyntax
>(
source
,
expectedOperationTree
,
expectedDiagnostics
);
}
[
Fact
]
public
void
ILambdaExpression_UnboundLambdaAsDelegate_HasValidLambdaExpressionTree
()
{
string
source
=
@"
using System;
class Program
{
static void Main(string[] args)
{
Action<int> x /*<bind>*/= () => F()/*</bind>*/;
}
static void F()
{
}
}
"
;
string
expectedOperationTree
=
@"
IVariableDeclarationStatement (1 declarations) (OperationKind.VariableDeclarationStatement, IsInvalid) (Syntax: 'Action<int> ... *</bind>*/;')
IVariableDeclaration (1 variables) (OperationKind.VariableDeclaration, IsInvalid) (Syntax: 'Action<int> ... *</bind>*/;')
Variables: Local_1: System.Action<System.Int32> x
Initializer: IConversionExpression (ConversionKind.Invalid, Implicit) (OperationKind.ConversionExpression, Type: System.Action<System.Int32>, IsInvalid) (Syntax: '() => F()')
ILambdaExpression (Signature: lambda expression) (OperationKind.LambdaExpression, Type: null) (Syntax: '() => F()')
IBlockStatement (1 statements) (OperationKind.BlockStatement) (Syntax: 'F()')
IExpressionStatement (OperationKind.ExpressionStatement) (Syntax: 'F()')
IInvocationExpression (static void Program.F()) (OperationKind.InvocationExpression, Type: System.Void) (Syntax: 'F()')
"
;
var
expectedDiagnostics
=
new
DiagnosticDescription
[]
{
// CS1593: Delegate 'Action<int>' does not take 0 arguments
// Action<int> x /*<bind>*/= () => F()/*</bind>*/;
Diagnostic
(
ErrorCode
.
ERR_BadDelArgCount
,
"() => F()"
).
WithArguments
(
"System.Action<int>"
,
"0"
).
WithLocation
(
8
,
35
)
};
VerifyOperationTreeAndDiagnosticsForTest
<
EqualsValueClauseSyntax
>(
source
,
expectedOperationTree
,
expectedDiagnostics
);
}
}
}
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