private IEnumerable <DiagnosticRecord> FindHashtableViolations(TokenOperations tokenOps)
{
var hashtableAsts = tokenOps.Ast.FindAll(ast => ast is HashtableAst, true);
var groups = new List <List <Tuple <IScriptExtent, IScriptExtent> > >();
if (hashtableAsts != null)
{
foreach (var astItem in hashtableAsts)
{
groups.Add(GetExtents(tokenOps, (HashtableAst)astItem));
}
}
#if !PSV3
var configAsts = tokenOps.Ast.FindAll(ast => ast is ConfigurationDefinitionAst, true);
if (configAsts != null)
{
// There are probably parse errors caused by an "Undefined DSC resource"
// which prevents the parser from detecting the property value pairs as
// hashtable. Hence, this is a workaround to format configurations which
// have "Undefined DSC resource" parse errors.
// find all commandAsts of the form "prop" "=" "val" that have the same parent
// and format those pairs.
foreach (var configAst in configAsts)
{
groups.AddRange(GetCommandElementExtentGroups(configAst));
}
}
#endif
// it is probably much easier have a hashtable writer that formats the hashtable and writes it
// but it makes handling comments hard. So we need to use this approach.
// This is how the algorithm actually works:
// if each key value pair are on a separate line
// find all the assignment operators
// if all the assignment operators are aligned (check the column number of each assignment operator)
// skip
// else
// find the distance between the assignment operators and their corresponding LHS
// find the longest left expression
// make sure all the assignment operators are in the same column as that of the longest left hand.
foreach (var extentTuples in groups)
{
if (!HasPropertiesOnSeparateLines(extentTuples))
{
continue;
}
if (extentTuples == null ||
extentTuples.Count == 0 ||
!extentTuples.All(t => t.Item1.StartLineNumber == t.Item2.EndLineNumber))
{
continue;
}
var widestKeyExtent = extentTuples
.Select(t => t.Item1)
.Aggregate((t1, tAggregate) =>
{
return(TokenOperations.GetExtentWidth(tAggregate) > TokenOperations.GetExtentWidth(t1)
? tAggregate
: t1);
});
var expectedStartColumnNumber = widestKeyExtent.EndColumnNumber + 1;
foreach (var extentTuple in extentTuples)
{
if (extentTuple.Item2.StartColumnNumber != expectedStartColumnNumber)
{
yield return(new DiagnosticRecord(
GetError(),
extentTuple.Item2,
GetName(),
GetDiagnosticSeverity(),
extentTuple.Item1.File,
null,
GetHashtableCorrections(extentTuple, expectedStartColumnNumber).ToList()));
}
}
}
}
private IEnumerable <DiagnosticRecord> FindHashtableViolations(TokenOperations tokenOps)
{
var hashtableAsts = tokenOps.Ast.FindAll(ast => ast is HashtableAst, true);
if (hashtableAsts == null)
{
yield break;
}
// it is probably much easier have a hashtable writer that formats the hashtable and writes it
// but it makes handling comments hard. So we need to use this approach.
// This is how the algorithm actually works:
// if each key value pair are on a separate line
// find all the assignment operators
// if all the assignment operators are aligned (check the column number of each assignment operator)
// skip
// else
// find the distance between the assignment operators and their corresponding LHS
// find the longest left expression
// make sure all the assignment operators are in the same column as that of the longest left hand.
foreach (var astItem in hashtableAsts)
{
var hashtableAst = (HashtableAst)astItem;
if (!HasKeysOnSeparateLines(hashtableAst))
{
continue;
}
var extentTuples = GetExtents(tokenOps, hashtableAst);
if (extentTuples == null ||
extentTuples.Count == 0 ||
!extentTuples.All(t => t.Item1.StartLineNumber == t.Item2.EndLineNumber))
{
continue;
}
var widestKeyExtent = extentTuples
.Select(t => t.Item1)
.Aggregate((t1, tAggregate) => {
return(TokenOperations.GetExtentWidth(tAggregate) > TokenOperations.GetExtentWidth(t1)
? tAggregate
: t1);
});
var expectedStartColumnNumber = widestKeyExtent.EndColumnNumber + 1;
foreach (var extentTuple in extentTuples)
{
if (extentTuple.Item2.StartColumnNumber != expectedStartColumnNumber)
{
yield return(new DiagnosticRecord(
GetError(),
extentTuple.Item2,
GetName(),
GetDiagnosticSeverity(),
extentTuple.Item1.File,
null,
GetHashtableCorrections(extentTuple, expectedStartColumnNumber).ToList()));
}
}
}
}
