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MA0051 supports skip_local_functions when counting lines #562

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merged 1 commit into from
Jul 19, 2023
Merged

MA0051 supports skip_local_functions when counting lines #562

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12 changes: 12 additions & 0 deletions src/Meziantou.Analyzer/Rules/MethodShouldNotBeTooLongAnalyzer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,18 @@ private static void AnalyzeNode(SyntaxNodeAnalysisContext context, SyntaxNode? n
var location = node.GetLocation();
var lineSpan = location.GetLineSpan();
var lines = lineSpan.EndLinePosition.Line - lineSpan.StartLinePosition.Line;

if (GetSkipLocalFunctions(context))
{
var localFunctions = node.DescendantNodes(node => !node.IsKind(SyntaxKind.LocalFunctionStatement)).Where(node => node.IsKind(SyntaxKind.LocalFunctionStatement));
foreach (var localFunction in localFunctions)
{
var functionLocation = localFunction.GetLocation().GetLineSpan();
lines -= functionLocation.EndLinePosition.Line - functionLocation.StartLinePosition.Line;
}
}


if (lines > maximumLines)
{
context.ReportDiagnostic(s_rule, reportNode, $"{lines} lines; maximum allowed: {maximumLines}");
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48 changes: 48 additions & 0 deletions tests/Meziantou.Analyzer.Test/Rules/MethodShouldNotBeTooLongAnalyzerTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,54 @@ await CreateProjectBuilder()
.ValidateAsync();
}

[Fact]
public async Task TooLong_SkipLocalFunction()
{
const string SourceCode = @"
public class Test
{
void [||]Method()
{
var a = 0;
var b = 0;
var c = 0;
void A()
{
void B() { }
}
}
}";
await CreateProjectBuilder()
.WithSourceCode(SourceCode)
.AddAnalyzerConfiguration("MA0051.maximum_lines_per_method", "5")
.AddAnalyzerConfiguration("MA0051.skip_local_functions", "false")
.ValidateAsync();
}

[Fact]
public async Task ValidMethod_SkipLocalFunction()
{
const string SourceCode = @"
public class Test
{
void Method()
{
var a = 0;
var b = 0;
var c = 0;
void A()
{
void B() { }
}
}
}";
await CreateProjectBuilder()
.WithSourceCode(SourceCode)
.AddAnalyzerConfiguration("MA0051.maximum_lines_per_method", "5")
.AddAnalyzerConfiguration("MA0051.skip_local_functions", "true")
.ValidateAsync();
}

[Fact]
public void CountStatement_ForLoop()
{
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