private static (bool preCheck, ExpressionSyntax result) TryRewriteSimple(RewriteDesign design, string[] names)
{
if (design.CurrentCollection?.CollectionType == CollectionType.IEnumerable)
{
return(false, null);
}
if (names.Any(x => MethodsModifyingEnumeration.Contains(x)))
{
return(false, null);
}
if (design.Data.CurrentMethodParams.Any(x => x.Modifiers.Any()))
{
return(false, null);
}
if (!MethodsCreateArray.Contains(names.First()))
{
RewriteCollectionEnumeration.Rewrite(design, Array.Empty <RewrittenValueBridge>(), false);
}
for (var i = 0; i < names.Length; i++)
{
ExpressionSyntax rewrittenPart = RewriteSimplePart(names[i], design, i);
if (design.Error)
{
return(true, null);
}
if (!design.SimpleEnumeration)
{
return(true, null);
}
if (rewrittenPart != null)
{
return(true, rewrittenPart);
}
}
if (!MethodsWithResult.Contains(names.Last()))
{
ExpressionSyntax rewrittenPart = RewriteToArray.SimpleRewrite(design, Array.Empty <RewrittenValueBridge>());
if (!design.SimpleEnumeration)
{
return(true, null);
}
if (rewrittenPart != null)
{
return(true, rewrittenPart);
}
}
return(true, null);
}
private static void RewriteComposite(RewriteDesign design, string[] names)
{
if (design.Data.CurrentMethodIsConditional && design.ReturnType.Type.ToString() == "void")
{
design.InitialAdd(If(design.CurrentCollection.IsEqual(null), ReturnStatement()));
}
if (!MethodsCreateArray.Contains(names.First()))
{
RewriteCollectionEnumeration.Rewrite(design, Array.Empty <RewrittenValueBridge>(), true);
}
for (var i = 0; i < names.Length; i++)
{
design.Variables.Where(x => !x.IsGlobal).ForEach(x => x.IsUsed = false);
RewritePart(names[i], design, i);
}
if (design.HasResultMethod)
{
return;
}
design.ForAdd(YieldStatement(SyntaxKind.YieldReturnStatement, design.LastValue));
design.ResultAdd(YieldStatement(SyntaxKind.YieldBreakStatement));
}