Compiler crash in pattern matching lowering - Error MSB6006: "csc.exe" exited with code -2146232797. (1, 1) #51801
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dotnet-issue-labeler
bot
added
Area-Compilers
untriaged
|
Very likely that we are not correctly obtaining the get accessor symbol for the property. |
jaredpar
added
Bug
and removed
untriaged
|
I think an analogous bug exists for list patterns when an indexer lacks an override of a get accessor. I will add it to #51289. I think this test should be added, although I could be wrong about the details, and of course a baseline needs to be included: [Fact, WorkItem(51801, "https://github.com/dotnet/roslyn/issues/51801")]
public void IndexerOverrideLacksAccessor()
{
var source = @"
#nullable enable
class Base
{
public virtual object this[int i] { get { return 1; } set { } }
}
class C : Base
{
public override object this[int i] { set { } }
public int Length => 1;
public string Value { get; }
public string M()
{
switch (this)
{
case [1]:
return Value;
default:
return Value;
}
}
}
";
var verifier = CompileAndVerify(source);
verifier.VerifyIL("C.M", @""); |
This was referenced Sep 21, 2021
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Version Used:
Steps to Reproduce:
Compile the following code
Expected Behavior:
Either the code compiles or there's a compilation error somewhere in the code (probably on the
case { IsOk: true }:)Actual Behavior:
Error MSB6006: "csc.exe" exited with code -2146232797. (1, 1)Notes
This example on sharplab.io gives the following exception:
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