void ValidateAttribute(XElement element, XAttribute attribute, MSBuildLanguageElement resolvedElement, MSBuildLanguageAttribute resolvedAttribute)
{
if (string.IsNullOrWhiteSpace(attribute.Value))
{
if (resolvedAttribute.Required)
{
AddError($"Required attribute has empty value", attribute.GetNameRegion());
}
else
{
AddWarning($"Attribute has empty value", attribute.GetNameRegion());
}
return;
}
}
void ValidateUsingTaskHasAssembly(XElement element)
{
XAttribute taskFactoryAtt = null;
XAttribute asmNameAtt = null;
XAttribute asmFileAtt = null;
foreach (var att in element.Attributes)
{
switch (att.Name.Name.ToLowerInvariant())
{
case "assemblyfile":
asmFileAtt = att;
break;
case "assemblyname":
asmNameAtt = att;
break;
case "taskfactory":
taskFactoryAtt = att;
break;
}
}
if (asmNameAtt == null && asmFileAtt == null)
{
AddError(
$"UsingTask must have AssemblyName or AssemblyFile attribute",
element.GetNameRegion());
}
else if (taskFactoryAtt != null && asmNameAtt != null)
{
AddError(
$"UsingTask with TaskFactory cannot have AssemblyName attribute",
asmNameAtt.GetNameRegion());
}
else if (taskFactoryAtt != null && asmFileAtt == null)
{
AddError(
$"UsingTask with TaskFactory must have AssemblyFile attribute",
element.GetNameRegion());
}
else if (asmNameAtt != null && asmFileAtt != null)
{
AddError(
$"UsingTask may not have both AssemblyName and AssemblyFile attributes",
asmNameAtt.GetNameRegion());
}
XElement parameterGroup = null, taskBody = null;
foreach (var child in element.Elements)
{
if (child.NameEquals("ParameterGroup", true))
{
if (parameterGroup != null)
{
AddError(
$"UsingTask may only have one ParameterGroup",
child.GetNameRegion());
}
parameterGroup = child;
}
if (child.NameEquals("Task", true))
{
if (taskBody != null)
{
AddError(
$"UsingTask may only have one Task body",
child.GetNameRegion());
}
taskBody = child;
}
}
if (taskFactoryAtt == null)
{
if (taskBody != null)
{
AddError(
$"UsingTask without TaskFactory attribute cannot have Task element",
taskBody.GetNameRegion());
}
else if (parameterGroup != null)
{
AddError(
$"UsingTask without TaskFactory attribute cannot have ParameterGroup element",
parameterGroup.GetNameRegion());
}
}
else
{
if (taskBody == null)
{
AddError(
$"UsingTask with TaskFactory attribute must have Task element",
element.GetNameRegion());
}
if (taskBody != null)
{
switch (taskFactoryAtt.Value?.ToLowerInvariant())
{
case "codetaskfactory":
if (string.Equals(asmFileAtt.Value, "$(RoslynCodeTaskFactory)"))
{
goto case "roslyncodetaskfactory";
}
break;
case "roslyncodetaskfactory":
ValidateRoslynCodeTaskFactory(element, taskBody, parameterGroup);
break;
case null:
AddError(
$"UsingTask with Task element must have TaskFactory attribute",
taskBody.GetNameRegion());
break;
}
}
}
}