private static void Analyze(SyntaxNodeAnalysisContext context, SyntaxList <StatementSyntax> statements)
{
if (statements.Count <= 1)
{
return;
}
int previousEndLine = statements[0].GetSpanEndLine();
for (int i = 1; i < statements.Count; i++)
{
StatementSyntax statement = statements[i];
if (!statement.IsKind(SyntaxKind.Block, SyntaxKind.EmptyStatement) &&
statement.GetSpanStartLine() == previousEndLine)
{
DiagnosticHelpers.ReportDiagnostic(
context,
DiagnosticDescriptors.AddNewLineBeforeStatement,
Location.Create(statement.SyntaxTree, statement.Span.WithLength(0)));
}
previousEndLine = statement.GetSpanEndLine();
}
}
private static void AnalyzeEmbeddedStatement(SyntaxNodeAnalysisContext context)
{
SyntaxToken token = GetToken(context.Node);
if (token.IsMissing)
{
return;
}
StatementSyntax statement = GetStatement(context.Node);
if (statement.IsKind(SyntaxKind.Block))
{
return;
}
if (statement.IsKind(SyntaxKind.EmptyStatement))
{
return;
}
if (token.GetSpanStartLine() == statement.GetSpanStartLine())
{
context.ReportDiagnostic(
DiagnosticDescriptors.FormatEmbeddedStatementOnSeparateLine,
statement.GetLocation());
}
else
{
var parentStatement = (StatementSyntax)context.Node;
var block = parentStatement.Parent as BlockSyntax;
if (block == null)
{
return;
}
int index = block.Statements.IndexOf(parentStatement);
if (index == block.Statements.Count - 1)
{
return;
}
int diff = block.Statements[index + 1].GetSpanStartLine() - statement.GetSpanEndLine();
if (diff < 2)
{
context.ReportDiagnostic(
DiagnosticDescriptors.AddEmptyLineAfterEmbeddedStatement,
statement.GetLocation());
}
}
}
public static void Analyze(SyntaxNodeAnalysisContext context, DoStatementSyntax doStatement)
{
StatementSyntax statement = doStatement.Statement;
if (statement?.IsKind(SyntaxKind.Block) == true)
{
var block = (BlockSyntax)statement;
SyntaxList <StatementSyntax> statements = block.Statements;
if (statements.Any())
{
SyntaxToken closeBrace = block.CloseBraceToken;
if (!closeBrace.IsMissing)
{
SyntaxToken whileKeyword = doStatement.WhileKeyword;
if (!whileKeyword.IsMissing)
{
int closeBraceLine = closeBrace.GetSpanEndLine();
if (closeBraceLine == whileKeyword.GetSpanStartLine())
{
StatementSyntax last = statements.Last();
int line = last.GetSpanEndLine(context.CancellationToken);
if (closeBraceLine - line == 1)
{
SyntaxTrivia trivia = last
.GetTrailingTrivia()
.FirstOrDefault(f => f.IsEndOfLineTrivia());
if (trivia.IsKind(SyntaxKind.EndOfLineTrivia))
{
context.ReportDiagnostic(
DiagnosticDescriptors.AddEmptyLineAfterLastStatementInDoStatement,
Location.Create(doStatement.SyntaxTree, trivia.Span));
}
}
}
}
}
}
}
}
private static void Analyze(SyntaxNodeAnalysisContext context, SyntaxList <StatementSyntax> statements)
{
if (statements.Count > 1)
{
int previousEndLine = statements[0].GetSpanEndLine();
for (int i = 1; i < statements.Count; i++)
{
StatementSyntax statement = statements[i];
if (!statement.IsKind(SyntaxKind.Block, SyntaxKind.EmptyStatement) &&
statement.GetSpanStartLine() == previousEndLine)
{
context.ReportDiagnostic(DiagnosticDescriptors.FormatEachStatementOnSeparateLine, statement);
}
previousEndLine = statement.GetSpanEndLine();
}
}
}
private static void AnalyzeDoStatement(SyntaxNodeAnalysisContext context)
{
var doStatement = (DoStatementSyntax)context.Node;
StatementSyntax statement = doStatement.Statement;
if (statement?.Kind() != SyntaxKind.Block)
{
return;
}
var block = (BlockSyntax)statement;
StatementSyntax lastStatement = block.Statements.LastOrDefault();
if (lastStatement == null)
{
return;
}
SyntaxToken closeBrace = block.CloseBraceToken;
if (closeBrace.IsMissing)
{
return;
}
SyntaxToken whileKeyword = doStatement.WhileKeyword;
if (whileKeyword.IsMissing)
{
return;
}
int closeBraceLine = closeBrace.GetSpanEndLine();
if (closeBraceLine != whileKeyword.GetSpanStartLine())
{
return;
}
int line = lastStatement.GetSpanEndLine(context.CancellationToken);
if (closeBraceLine - line != 1)
{
return;
}
SyntaxTrivia trivia = lastStatement
.GetTrailingTrivia()
.FirstOrDefault(f => f.IsEndOfLineTrivia());
if (!trivia.IsEndOfLineTrivia())
{
return;
}
DiagnosticHelpers.ReportDiagnostic(context,
DiagnosticDescriptors.AddEmptyLineBeforeWhileInDoStatement,
Location.Create(doStatement.SyntaxTree, trivia.Span));
}