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93cc9211
编写于
5月 12, 2015
作者:
N
Neal Gafter
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差异文件
A method declared with __arglist is not a candidate with a keyword arg list
Fixes #2631
上级
42e45995
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
28 addition
and
4 deletion
+28
-4
src/Compilers/CSharp/Portable/Binder/Binder_Expressions.cs
src/Compilers/CSharp/Portable/Binder/Binder_Expressions.cs
+1
-1
src/Compilers/CSharp/Portable/Binder/Semantics/OverloadResolution/OverloadResolution_ArgsToParameters.cs
...OverloadResolution/OverloadResolution_ArgsToParameters.cs
+6
-3
src/Compilers/CSharp/Test/Semantic/Semantics/OverloadResolutionTests.cs
...CSharp/Test/Semantic/Semantics/OverloadResolutionTests.cs
+21
-0
未找到文件。
src/Compilers/CSharp/Portable/Binder/Binder_Expressions.cs
浏览文件 @
93cc9211
...
...
@@ -662,7 +662,7 @@ private BoundExpression BindArgList(CSharpSyntaxNode node, DiagnosticBag diagnos
{
// There are two forms of __arglist expression. In a method with an __arglist parameter,
// it is legal to use __arglist as an expression of type RuntimeArgumentHandle. In
// a call to such a method, it is legal to use __arglist(x, y, z) as the final argument.
\
// a call to such a method, it is legal to use __arglist(x, y, z) as the final argument.
// This method only handles the first usage; the second usage is parsed as a call syntax.
// The native compiler allows __arglist in a lambda:
...
...
src/Compilers/CSharp/Portable/Binder/Semantics/OverloadResolution/OverloadResolution_ArgsToParameters.cs
浏览文件 @
93cc9211
...
...
@@ -121,7 +121,6 @@ public ImmutableArray<int> ToImmutableArray()
// them in the given order.
// (1) Is there any argument without a corresponding parameter?
//
if
(
unmatchedArgumentIndex
!=
null
)
{
...
...
@@ -138,7 +137,6 @@ public ImmutableArray<int> ToImmutableArray()
// (2) was there any named argument that specified a parameter that was already
// supplied with a positional parameter?
int
?
nameUsedForPositional
=
NameUsedForPositional
(
arguments
,
argsToParameters
);
if
(
nameUsedForPositional
!=
null
)
{
...
...
@@ -148,12 +146,17 @@ public ImmutableArray<int> ToImmutableArray()
// (3) Is there any non-optional parameter without a corresponding argument?
int
?
requiredParameterMissing
=
CheckForMissingRequiredParameter
(
argsToParameters
,
parameters
,
isMethodGroupConversion
,
expanded
);
if
(
requiredParameterMissing
!=
null
)
{
return
ArgumentAnalysisResult
.
RequiredParameterMissing
(
requiredParameterMissing
.
Value
);
}
// __arglist cannot be used with named arguments (as it doesn't have a name)
if
(
arguments
.
Names
.
Count
!=
0
&&
symbol
.
GetIsVararg
())
{
return
ArgumentAnalysisResult
.
RequiredParameterMissing
(
parameters
.
Length
);
}
// We're good; this one might be applicable in the given form.
return
expanded
?
...
...
src/Compilers/CSharp/Test/Semantic/Semantics/OverloadResolutionTests.cs
浏览文件 @
93cc9211
...
...
@@ -8078,5 +8078,26 @@ static void Main()
Diagnostic
(
ErrorCode
.
ERR_NamedArgumentUsedInPositional
,
"x"
).
WithArguments
(
"x"
).
WithLocation
(
41
,
16
)
);
}
[
Fact
,
WorkItem
(
2631
,
"https://github.com/dotnet/roslyn/issues/2631"
)]
public
void
ArglistCompilerCrash
()
{
var
source
=
@"class Program
{
static void M(object x) { }
static void M(object x, object y) { }
static void M(object x, object y, object z) { }
static void M(object x, object y, object z, __arglist) { }
static void M(object x, params object[] args) { }
static void Main(string[] args)
{
M(x: 1, y: 2, z: 3);
}
}"
;
var
compilation
=
CreateCompilationWithMscorlib
(
source
);
compilation
.
VerifyDiagnostics
();
}
}
}
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