10000 Void codemethod call should not crash by powercode · Pull Request #4850 · PowerShell/PowerShell · GitHub
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Void codemethod call should not crash #4850

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Merged
merged 3 commits into from
Sep 20, 2017
Merged

Void codemethod call should not crash #4850

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fe9f1c7
Failing test for calling void method
Sep 16, 2017
06e20fe
Handling case in Invoking CodeMethod when return type is void.
Sep 16, 2017
f0ad5f8
Addressing lzybkr review comments
Sep 18, 2017
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13 changes: 10 additions & 3 deletions src/System.Management.Automation/engine/runtime/Binding/Binders.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -6568,9 +6568,16 @@ public override DynamicMetaObject FallbackInvokeMember(DynamicMetaObject target,
var codeMethod = methodInfo as PSCodeMethod;
if (codeMethod != null)
{
return new DynamicMetaObject(
InvokeMethod(codeMethod.CodeReference, null, args.Prepend(target).ToArray(), false, MethodInvocationType.Ordinary)
.Cast(typeof(object)), restrictions).WriteToDebugLog(this);
Expression expr = InvokeMethod(codeMethod.CodeReference, null, args.Prepend(target).ToArray(), false, MethodInvocationType.Ordinary);
if (codeMethod.CodeReference.ReturnType == typeof(void))
{
expr = Expression.Block(expr, ExpressionCache.AutomationNullConstant);
}
else
{
expr = expr.Cast(typeof(object));
}
return new DynamicMetaObject(expr, restrictions).WriteToDebugLog(this);
}

var parameterizedProperty = methodInfo as PSParameterizedProperty;
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33 changes: 33 additions & 0 deletions test/powershell/engine/ETS/Adapter.Tests.ps1
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Expand Up @@ -79,6 +79,39 @@ Describe "Adapter Tests" -tags "CI" {
$val = $doc.ToString()
$val | Should Be "book"
}

It "Calls CodeMethod with void result" {

class TestCodeMethodInvokationWithVoidReturn {
[int] $CallCounter

static [int] IntMethodCM([PSObject] $self) {
return $self.CallCounter
}

static [void] VoidMethodCM([PSObject] $self) {
$self.CallCounter++
}

static [Reflection.MethodInfo] GetMethodInfo([string] $name) {
return [TestCodeMethodInvokationWithVoidReturn].GetMethod($name)
}
}

Update-TypeData -Force -TypeName TestCodeMethodInvokationWithVoidReturn -MemberType CodeMethod -MemberName IntMethod -Value ([TestCodeMethodInvokationWithVoidReturn]::GetMethodInfo('IntMethodCM'))
Update-TypeData -Force -TypeName TestCodeMethodInvokationWithVoidReturn -MemberType CodeMethod -MemberName VoidMethod -Value ([TestCodeMethodInvokationWithVoidReturn]::GetMethodInfo('VoidMethodCM'))
try {
$o = [TestCodeMethodInvokationWithVoidReturn]::new()
$o.CallCounter | Should Be 0
$o.VoidMethod()
$o.CallCounter | Should be 1

$o.IntMethod() | Should be 1
}
finally {
Remove-TypeData TestCodeMethodInvokationWithVoidReturn
}
}
}

Describe "Adapter XML Tests" -tags "CI" {
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0