private static bool IsFirstStatementIfStatement(
IBlockFactsService blockFacts,
IIfLikeStatementGenerator ifGenerator,
SyntaxNode ifOrElseIf,
out SyntaxNode ifStatement)
{
// Check whether the first statement inside an if or else if is an if statement.
// If the if statement is inside a block, it has to be the first statement of the block.
// An if or else if should always be a statement container, but we'll do a defensive check anyway.
Debug.Assert(blockFacts.IsStatementContainer(ifOrElseIf));
if (blockFacts.IsStatementContainer(ifOrElseIf))
{
var rootStatements = blockFacts.GetStatementContainerStatements(ifOrElseIf);
var statements = WalkDownScopeBlocks(blockFacts, rootStatements);
if (statements.Count > 0 && ifGenerator.IsIfOrElseIf(statements[0]))
{
ifStatement = statements[0];
return(true);
}
}
ifStatement = null;
return(false);
}
private static bool IsFirstStatementOfIfOrElseIf(
IBlockFactsService blockFacts,
IIfLikeStatementGenerator ifGenerator,
SyntaxNode statement,
out SyntaxNode ifOrElseIf)
{
// Check whether the statement is a first statement inside an if or else if.
// If it's inside a block, it has to be the first statement of the block.
// We can't assume that a statement will always be in a statement container, because an if statement
// in top level code will be in a GlobalStatement.
if (blockFacts.IsStatementContainer(statement.Parent))
{
var statements = blockFacts.GetStatementContainerStatements(statement.Parent);
if (statements.Count > 0 && statements[0] == statement)
{
var rootStatements = WalkUpScopeBlocks(blockFacts, statements);
if (rootStatements.Count > 0 && ifGenerator.IsIfOrElseIf(rootStatements[0].Parent))
{
ifOrElseIf = rootStatements[0].Parent;
return(true);
}
}
}
ifOrElseIf = null;
return(false);
}
