private bool AstAssignsToSameVariable(Ast ast)
{
ParameterAst ast2 = ast as ParameterAst;
if (ast2 != null)
{
return(this.VariablePath.IsUnscopedVariable && ast2.Name.VariablePath.UnqualifiedPath.Equals(this.VariablePath.UnqualifiedPath, StringComparison.OrdinalIgnoreCase));
}
ForEachStatementAst ast3 = ast as ForEachStatementAst;
if (ast3 != null)
{
return(this.VariablePath.IsUnscopedVariable && ast3.Variable.VariablePath.UnqualifiedPath.Equals(this.VariablePath.UnqualifiedPath, StringComparison.OrdinalIgnoreCase));
}
AssignmentStatementAst ast4 = (AssignmentStatementAst)ast;
ExpressionAst left = ast4.Left;
ConvertExpressionAst ast6 = left as ConvertExpressionAst;
if (ast6 != null)
{
left = ast6.Child;
}
VariableExpressionAst ast7 = left as VariableExpressionAst;
if (ast7 == null)
{
return(false);
}
System.Management.Automation.VariablePath variablePath = ast7.VariablePath;
return(variablePath.UserPath.Equals(this.VariablePath.UserPath, StringComparison.OrdinalIgnoreCase) || (this.VariablePath.IsScript && this.VariablePath.UnqualifiedPath.Equals(variablePath.UnqualifiedPath, StringComparison.OrdinalIgnoreCase)));
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
if (parameterAst.Name.VariablePath.IsAnyLocal())
{
this._validVariables.Add(parameterAst.Name.VariablePath.UnqualifiedPath);
}
return AstVisitAction.Continue;
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
foreach (AttributeBaseAst ast in parameterAst.Attributes)
{
if ((ast is TypeConstraintAst) && ast.TypeName.FullName.Equals("ordered", StringComparison.OrdinalIgnoreCase))
{
this._parser.ReportError(ast.Extent, ParserStrings.OrderedAttributeOnlyOnHashLiteralNode, new object[] { ast.TypeName.FullName });
}
}
return(AstVisitAction.Continue);
}
public System.Object VisitParameter(System.Management.Automation.Language.ParameterAst parameterAst)
{
IScriptExtent mappedExtent = MapExtent(parameterAst.Extent);
VariableExpressionAst mappedName = (VariableExpressionAst)VisitVariableExpression(parameterAst.Name);
LinkedList <AttributeBaseAst> mappedAttributes = new LinkedList <AttributeBaseAst>();
foreach (AttributeBaseAst ab in parameterAst.Attributes)
{
mappedAttributes.AddLast(_VisitAttributeBase(ab));
}
ExpressionAst mappedDefaultValue = parameterAst.DefaultValue != null?_VisitExpression(parameterAst.DefaultValue) : null;
return(new ParameterAst(mappedExtent, mappedName, mappedAttributes, mappedDefaultValue));
}
public virtual AstVisitAction VisitParameter(ParameterAst parameterAst)
{
return AstVisitAction.Continue;
}
private void BindVariable(ParameterAst scriptParameter, CommandParameter argument)
{
var value = GetParameterValue(scriptParameter, argument);
_executionContext.SetVariable(scriptParameter.Name.VariablePath.UserPath, value);
}
/// <summary/>
public virtual object VisitParameter(ParameterAst parameterAst)
{
return _decorated.VisitParameter(parameterAst);
}
private object GetParameterValue(ParameterAst scriptParameter, CommandParameter parameter)
{
if (parameter != null)
{
return parameter.Value;
}
return GetDefaultParameterValue(scriptParameter);
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
foreach (AttributeBaseAst ast in parameterAst.Attributes)
{
if ((ast is TypeConstraintAst) && ast.TypeName.FullName.Equals("ordered", StringComparison.OrdinalIgnoreCase))
{
this._parser.ReportError(ast.Extent, ParserStrings.OrderedAttributeOnlyOnHashLiteralNode, new object[] { ast.TypeName.FullName });
}
}
return AstVisitAction.Continue;
}
public object VisitParameter(ParameterAst parameterAst)
{
return null;
}
// We assume they have the same name
private bool CompareParamAsts(ParameterAst paramAst1, ParameterAst paramAst2)
{
if (paramAst1.StaticType != paramAst2.StaticType)
{
return false;
}
if ((paramAst1.Attributes == null && paramAst2.Attributes != null)
|| (paramAst1.Attributes != null && paramAst2.Attributes == null))
{
return false;
}
if (paramAst1.Attributes != null && paramAst2.Attributes != null)
{
if (paramAst1.Attributes.Count() != paramAst2.Attributes.Count())
{
return false;
}
HashSet<string> attributes = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
foreach (var attribute in paramAst1.Attributes)
{
attributes.Add(attribute.TypeName.FullName);
}
foreach (var attribute in paramAst2.Attributes)
{
if (!attributes.Contains(attribute.TypeName.FullName))
{
return false;
}
}
}
return true;
}
public object VisitParameter(ParameterAst parameterAst)
{
throw PSTraceSource.NewArgumentException("ast");
}
private static RuntimeDefinedParameter GetRuntimeDefinedParameter(ParameterAst parameterAst, ref bool customParameterSet, ref bool usesCmdletBinding)
{
object obj3;
List<Attribute> list = new List<Attribute>();
bool flag = false;
foreach (AttributeBaseAst ast in parameterAst.Attributes)
{
Attribute item = ast.GetAttribute();
list.Add(item);
ParameterAttribute attribute2 = item as ParameterAttribute;
if (attribute2 != null)
{
flag = true;
usesCmdletBinding = true;
if ((attribute2.Position != -2147483648) || !attribute2.ParameterSetName.Equals("__AllParameterSets", StringComparison.OrdinalIgnoreCase))
{
customParameterSet = true;
}
}
}
list.Reverse();
if (!flag)
{
list.Insert(0, new ParameterAttribute());
}
RuntimeDefinedParameter parameter = new RuntimeDefinedParameter(parameterAst.Name.VariablePath.UserPath, parameterAst.StaticType, new Collection<Attribute>(list.ToArray()));
if (parameterAst.DefaultValue != null)
{
object obj2;
if (IsConstantValueVisitor.IsConstant(parameterAst.DefaultValue, out obj2, false, false))
{
parameter.Value = obj2;
return parameter;
}
DefaultValueExpressionWrapper wrapper = new DefaultValueExpressionWrapper {
Expression = parameterAst.DefaultValue
};
parameter.Value = wrapper;
return parameter;
}
if (TryGetDefaultParameterValue(parameterAst.StaticType, out obj3) && (obj3 != null))
{
parameter.Value = obj3;
}
return parameter;
}
private ParameterAst ParameterRule()
{
ParameterAst parameterAst;
IScriptExtent extent;
IScriptExtent scriptExtent;
ExpressionAst expressionAst = null;
bool flag = this._disableCommaOperator;
TokenizerMode mode = this._tokenizer.Mode;
try
{
this._disableCommaOperator = true;
this.SetTokenizerMode(TokenizerMode.Expression);
this.SkipNewlines();
List<AttributeBaseAst> attributeBaseAsts = this.AttributeListRule(false);
this.SkipNewlines();
Token token = this.NextToken();
if (token.Kind == TokenKind.Variable || token.Kind == TokenKind.SplattedVariable)
{
VariableToken variableToken = (VariableToken)token;
this.SkipNewlines();
Token token1 = this.PeekToken();
if (token1.Kind == TokenKind.Equals)
{
this.SkipToken();
this.SkipNewlines();
expressionAst = this.ExpressionRule();
if (expressionAst == null)
{
object[] objArray = new object[1];
objArray[0] = token1.Kind.Text();
this.ReportIncompleteInput(Parser.After(token1), ParserStrings.MissingExpressionAfterToken, objArray);
}
}
if (attributeBaseAsts == null)
{
extent = variableToken.Extent;
}
else
{
extent = attributeBaseAsts[0].Extent;
}
IScriptExtent scriptExtent1 = extent;
if (expressionAst == null)
{
scriptExtent = variableToken.Extent;
}
else
{
scriptExtent = expressionAst.Extent;
}
IScriptExtent scriptExtent2 = scriptExtent;
return new ParameterAst(Parser.ExtentOf(scriptExtent1, scriptExtent2), new VariableExpressionAst(variableToken), attributeBaseAsts, expressionAst);
}
else
{
this.UngetToken(token);
if (attributeBaseAsts == null)
{
parameterAst = null;
}
else
{
this.ReportIncompleteInput(Parser.After(attributeBaseAsts.Last<AttributeBaseAst>()), ParserStrings.InvalidFunctionParameter, new object[0]);
TokenKind[] tokenKindArray = new TokenKind[1];
tokenKindArray[0] = TokenKind.RParen;
this.SyncOnError(tokenKindArray);
IScriptExtent scriptExtent3 = Parser.ExtentOf(attributeBaseAsts[0].Extent, attributeBaseAsts[attributeBaseAsts.Count - 1].Extent);
parameterAst = new ParameterAst(scriptExtent3, new VariableExpressionAst(scriptExtent3, "__error__", false), attributeBaseAsts, null);
}
}
}
finally
{
this._disableCommaOperator = flag;
this.SetTokenizerMode(mode);
}
return parameterAst;
}
private TypeConstraintAst GetTypeAttributeAst(ParameterAst paramAst)
{
if (paramAst.Attributes != null)
{
foreach(var attr in paramAst.Attributes)
{
if (attr.GetType() == typeof(TypeConstraintAst))
{
return attr as TypeConstraintAst;
}
}
}
return null;
}
private List<CorrectionExtent> GetCorrectionExtent(ParameterAst paramAst)
{
//Find the parameter type extent and replace that with secure string
IScriptExtent extent;
var typeAttributeAst = GetTypeAttributeAst(paramAst);
var corrections = new List<CorrectionExtent>();
string correctionText;
if (typeAttributeAst == null)
{
// cannot find any type attribute
extent = paramAst.Name.Extent;
correctionText = string.Format("[SecureString] {0}", paramAst.Name.Extent.Text);
}
else
{
// replace only the existing type with [SecureString]
extent = typeAttributeAst.Extent;
correctionText = typeAttributeAst.TypeName.IsArray ? "[SecureString[]]" : "[SecureString]";
}
string description = string.Format(
CultureInfo.CurrentCulture,
Strings.AvoidUsingPlainTextForPasswordCorrectionDescription,
paramAst.Name.Extent.Text);
corrections.Add(new CorrectionExtent(
extent.StartLineNumber,
extent.EndLineNumber,
extent.StartColumnNumber,
extent.EndColumnNumber,
correctionText.ToString(),
paramAst.Extent.File,
description));
return corrections;
}
internal override IEnumerable <PSTypeName> GetInferredType(CompletionContext context)
{
if (this.VariablePath.IsVariable)
{
Ast parent = this.Parent;
if (this.VariablePath.IsUnqualified && (this.VariablePath.UserPath.Equals("_", StringComparison.Ordinal) || this.VariablePath.UserPath.Equals("PSItem", StringComparison.OrdinalIgnoreCase)))
{
while (parent != null)
{
if (parent is ScriptBlockExpressionAst)
{
break;
}
parent = parent.Parent;
}
if (parent != null)
{
if ((parent.Parent is CommandExpressionAst) && (parent.Parent.Parent is PipelineAst))
{
if (parent.Parent.Parent.Parent is HashtableAst)
{
parent = parent.Parent.Parent.Parent;
}
else if ((parent.Parent.Parent.Parent is ArrayLiteralAst) && (parent.Parent.Parent.Parent.Parent is HashtableAst))
{
parent = parent.Parent.Parent.Parent.Parent;
}
}
if (parent.Parent is CommandParameterAst)
{
parent = parent.Parent;
}
CommandAst iteratorVariable1 = parent.Parent as CommandAst;
if (iteratorVariable1 != null)
{
PipelineAst iteratorVariable2 = (PipelineAst)iteratorVariable1.Parent;
int iteratorVariable3 = iteratorVariable2.PipelineElements.IndexOf(iteratorVariable1) - 1;
if (iteratorVariable3 >= 0)
{
foreach (PSTypeName iteratorVariable4 in iteratorVariable2.PipelineElements[0].GetInferredType(context))
{
if (iteratorVariable4.Type != null)
{
if (iteratorVariable4.Type.IsArray)
{
yield return(new PSTypeName(iteratorVariable4.Type.GetElementType()));
continue;
}
if (typeof(IEnumerable).IsAssignableFrom(iteratorVariable4.Type))
{
IEnumerable <Type> iteratorVariable5 = from t in iteratorVariable4.Type.GetInterfaces()
where t.IsGenericType && t.GetGenericTypeDefinition().Equals(typeof(IEnumerable <>))
select t;
foreach (Type iteratorVariable6 in iteratorVariable5)
{
yield return(new PSTypeName(iteratorVariable6.GetGenericArguments()[0]));
}
continue;
}
}
yield return(iteratorVariable4);
}
}
goto Label_0833;
}
}
}
if (this.VariablePath.IsUnqualified)
{
for (int i = 0; i < SpecialVariables.AutomaticVariables.Length; i++)
{
if (this.VariablePath.UserPath.Equals(SpecialVariables.AutomaticVariables[i], StringComparison.OrdinalIgnoreCase))
{
Type type = SpecialVariables.AutomaticVariableTypes[i];
if (!type.Equals(typeof(object)))
{
yield return(new PSTypeName(type));
break;
}
break;
}
}
}
while (parent.Parent != null)
{
parent = parent.Parent;
}
if (parent.Parent is FunctionDefinitionAst)
{
parent = parent.Parent;
}
IEnumerable <Ast> source = AstSearcher.FindAll(parent, ast => (((ast is ParameterAst) || (ast is AssignmentStatementAst)) || (ast is ForEachStatementAst)) && this.AstAssignsToSameVariable(ast), true);
ParameterAst iteratorVariable10 = source.OfType <ParameterAst>().FirstOrDefault <ParameterAst>();
if (iteratorVariable10 != null)
{
PSTypeName[] iteratorVariable11 = iteratorVariable10.GetInferredType(context).ToArray <PSTypeName>();
if (iteratorVariable11.Length > 0)
{
foreach (PSTypeName iteratorVariable12 in iteratorVariable11)
{
yield return(iteratorVariable12);
}
goto Label_0833;
}
}
AssignmentStatementAst[] iteratorVariable13 = source.OfType <AssignmentStatementAst>().ToArray <AssignmentStatementAst>();
foreach (AssignmentStatementAst iteratorVariable14 in iteratorVariable13)
{
ConvertExpressionAst left = iteratorVariable14.Left as ConvertExpressionAst;
if ((left != null) && (left.StaticType != null))
{
yield return(new PSTypeName(left.StaticType));
goto Label_0833;
}
}
ForEachStatementAst iteratorVariable16 = source.OfType <ForEachStatementAst>().FirstOrDefault <ForEachStatementAst>();
if (iteratorVariable16 != null)
{
foreach (PSTypeName iteratorVariable17 in iteratorVariable16.Condition.GetInferredType(context))
{
yield return(iteratorVariable17);
}
}
else
{
int startOffset = this.Extent.StartOffset;
int iteratorVariable19 = 0x7fffffff;
AssignmentStatementAst iteratorVariable20 = null;
foreach (AssignmentStatementAst ast in iteratorVariable13)
{
int endOffset = ast.Extent.EndOffset;
if ((endOffset < startOffset) && ((startOffset - endOffset) < iteratorVariable19))
{
iteratorVariable19 = startOffset - endOffset;
iteratorVariable20 = ast;
}
}
if (iteratorVariable20 != null)
{
foreach (PSTypeName iteratorVariable21 in iteratorVariable20.Right.GetInferredType(context))
{
yield return(iteratorVariable21);
}
}
}
}
Label_0833:
yield break;
}
public override AstVisitAction VisitParameter(ParameterAst ast)
{
return(Check(ast));
}
/// <summary/> public virtual AstVisitAction VisitParameter(ParameterAst parameterAst) => DefaultVisit(parameterAst);
public object VisitParameter(ParameterAst parameterAst)
{
return(false);
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
Diagnostics.Assert(FoundError, "VisitParamBlock or VisitFunctionDeclaration should have already reported an error");
return AstVisitAction.Continue;
}
/// <summary>
/// Returns script extent of username and password parameters
/// </summary>
/// <param name="usernameAst"></param>
/// <param name="passwordAst"></param>
/// <returns>IScriptExtent</returns>
private IScriptExtent GetExtent(ParameterAst usernameAst, ParameterAst passwordAst, Ast scriptAst)
{
var usrExt = usernameAst.Extent;
var pwdExt = passwordAst.Extent;
IScriptExtent startExt, endExt;
var usrBeforePwd
= (usrExt.StartLineNumber == pwdExt.StartLineNumber
&& usrExt.StartColumnNumber < pwdExt.StartColumnNumber)
|| usrExt.StartLineNumber < pwdExt.StartLineNumber;
if (usrBeforePwd)
{
startExt = usrExt;
endExt = pwdExt;
}
else
{
startExt = pwdExt;
endExt = usrExt;
}
var startPos = new ScriptPosition(
startExt.File,
startExt.StartLineNumber,
startExt.StartColumnNumber,
startExt.StartScriptPosition.Line);
var endPos = new ScriptPosition(
endExt.File,
endExt.EndLineNumber,
endExt.EndColumnNumber,
endExt.EndScriptPosition.Line);
return new ScriptExtent(startPos, endPos);
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
bool isClassMethod = parameterAst.Parent.Parent is FunctionMemberAst;
bool isParamTypeDefined = false;
foreach (AttributeBaseAst attribute in parameterAst.Attributes)
{
if (attribute is TypeConstraintAst)
{
if (attribute.TypeName.FullName.Equals(LanguagePrimitives.OrderedAttribute, StringComparison.OrdinalIgnoreCase))
{
_parser.ReportError(attribute.Extent, () => ParserStrings.OrderedAttributeOnlyOnHashLiteralNode, attribute.TypeName.FullName);
}
else
{
if (isClassMethod)
{
// attribute represent parameter type.
if (isParamTypeDefined)
{
_parser.ReportError(attribute.Extent, () => ParserStrings.MultipleTypeConstraintsOnMethodParam);
}
isParamTypeDefined = true;
}
}
}
}
return AstVisitAction.Continue;
}
/// <summary>
/// Visit parameter
/// </summary>
/// <param name="parameterAst"></param>
/// <returns></returns>
public object VisitParameter(ParameterAst parameterAst)
{
// Nothing to do now, we've already allocated parameters in the first pass looking for all variable names.
System.Diagnostics.Debug.Assert(false, "Code is unreachable");
return null;
}
internal string ToStringForSerialization(Tuple <List <VariableExpressionAst>, string> usingVariablesTuple, int initialStartOffset, int initialEndOffset)
{
List <VariableExpressionAst> collection = usingVariablesTuple.Item1;
string str = usingVariablesTuple.Item2;
List <Ast> list2 = new List <Ast>(collection);
if (this.ParamBlock != null)
{
list2.Add(this.ParamBlock);
}
int startOffset = base.Extent.StartOffset;
int startIndex = initialStartOffset - startOffset;
int num3 = initialEndOffset - startOffset;
string str2 = this.ToString();
StringBuilder builder = new StringBuilder();
foreach (Ast ast in from ast in list2
orderby ast.Extent.StartOffset
select ast)
{
int num4 = ast.Extent.StartOffset - startOffset;
int num5 = ast.Extent.EndOffset - startOffset;
if (num4 >= startIndex)
{
if (num4 >= num3)
{
break;
}
VariableExpressionAst ast2 = ast as VariableExpressionAst;
if (ast2 != null)
{
string userPath = ast2.VariablePath.UserPath;
string str4 = ast2.Splatted ? "@" : "$";
string str5 = str4 + "__using_" + userPath;
builder.Append(str2.Substring(startIndex, num4 - startIndex));
builder.Append(str5);
startIndex = num5;
}
else
{
int num6;
ParamBlockAst ast3 = ast as ParamBlockAst;
if (ast3.Parameters.Count == 0)
{
num6 = num5 - 1;
}
else
{
ParameterAst ast4 = ast3.Parameters[0];
num6 = (ast4.Attributes.Count == 0) ? (ast4.Name.Extent.StartOffset - startOffset) : (ast4.Attributes[0].Extent.StartOffset - startOffset);
str = str + ",\n";
}
builder.Append(str2.Substring(startIndex, num6 - startIndex));
builder.Append(str);
startIndex = num6;
}
}
}
builder.Append(str2.Substring(startIndex, num3 - startIndex));
string str6 = builder.ToString();
if (((base.Parent is ScriptBlockExpressionAst) && (initialStartOffset == base.Extent.StartOffset)) && (initialEndOffset == base.Extent.EndOffset))
{
str6 = str6.Substring(1, str6.Length - 2);
}
return(str6);
}
private bool WrongCredentialUsage(ParameterAst parameter)
{
if (parameter.Name.VariablePath.UserPath.Equals("Credential", StringComparison.OrdinalIgnoreCase))
{
var psCredentialType = parameter.Attributes.FirstOrDefault(paramAttribute => (paramAttribute.TypeName.IsArray && (paramAttribute.TypeName as ArrayTypeName).ElementType.GetReflectionType() == typeof(PSCredential))
|| paramAttribute.TypeName.GetReflectionType() == typeof(PSCredential));
var credentialAttribute = parameter.Attributes.FirstOrDefault(paramAttribute => paramAttribute.TypeName.GetReflectionType() == typeof(CredentialAttribute));
// check that both exists and pscredentialtype comes before credential attribute
if (psCredentialType != null && credentialAttribute != null && psCredentialType.Extent.EndOffset < credentialAttribute.Extent.StartOffset)
{
return false;
}
return true;
}
return false;
}
private object GetParameterValue(ParameterAst scriptParameter, CommandParameter parameter)
{
if (parameter != null)
{
return parameter.Value;
}
return _scopedExecutionVisitor.EvaluateAst(scriptParameter.DefaultValue);;
}
private object GetDefaultParameterValue(ParameterAst scriptParameter)
{
var constantExpression = scriptParameter.DefaultValue as ConstantExpressionAst;
if (constantExpression != null)
{
return constantExpression.Value;
}
return null;
}
public object VisitParameter(ParameterAst parameterAst) { throw new UnexpectedElementException(); }
private object GetParameterValue(ParameterAst scriptParameter, CommandParameter argument)
{
if (argument != null)
{
return argument.Value;
}
if (scriptParameter.DefaultValue == null)
{
return null;
}
return _executionVisitor.EvaluateAst(scriptParameter.DefaultValue);
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
return(AstVisitAction.Continue);
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
throw new NotImplementedException(); //VisitParameter(parameterAst);
}
public override AstVisitAction VisitParameter(ParameterAst ast)
{
return this.Check(ast);
}
public object VisitParameter(ParameterAst parameterAst) { return AutomationNull.Value; }
public object VisitParameter(ParameterAst parameterAst) { throw PSTraceSource.NewArgumentException("ast"); }
/// <summary/>
public virtual object VisitParameter(ParameterAst parameterAst)
{
return(null);
}
private static RuntimeDefinedParameter GetRuntimeDefinedParameter(ParameterAst parameterAst, ref bool customParameterSet, ref bool usesCmdletBinding)
{
List<Attribute> attributes = new List<Attribute>();
bool hasParameterAttribute = false;
for (int index = 0; index < parameterAst.Attributes.Count; index++)
{
var attributeAst = parameterAst.Attributes[index];
var attribute = attributeAst.GetAttribute();
attributes.Add(attribute);
var parameterAttribute = attribute as ParameterAttribute;
if (parameterAttribute != null)
{
hasParameterAttribute = true;
usesCmdletBinding = true;
if (parameterAttribute.Position != int.MinValue ||
!parameterAttribute.ParameterSetName.Equals(ParameterAttribute.AllParameterSets,
StringComparison.OrdinalIgnoreCase))
{
customParameterSet = true;
}
}
}
attributes.Reverse();
if (!hasParameterAttribute)
{
attributes.Insert(0, new ParameterAttribute());
}
var result = new RuntimeDefinedParameter(parameterAst.Name.VariablePath.UserPath, parameterAst.StaticType,
new Collection<Attribute>(attributes.ToArray()));
if (parameterAst.DefaultValue != null)
{
object constantValue;
if (IsConstantValueVisitor.IsConstant(parameterAst.DefaultValue, out constantValue))
{
result.Value = constantValue;
}
else
{
// Expression isn't constant, create a wrapper that holds the ast, and if necessary,
// will cache a delegate to evaluate the default value.
result.Value = new DefaultValueExpressionWrapper { Expression = parameterAst.DefaultValue };
}
}
else
{
object defaultValue;
if (TryGetDefaultParameterValue(parameterAst.StaticType, out defaultValue) && defaultValue != null)
{
// Skip setting the value when defaultValue is null because if we do call the setter,
// we'll try converting null to the parameter, which we might not want, e.g. if the parameter is [ref].
result.Value = defaultValue;
}
}
return result;
}
public object VisitParameter(ParameterAst parameterAst)
{
return false;
}
public object VisitParameter(ParameterAst parameterAst)
{
Diagnostics.Assert(false, "Nothing to generate for a parameter");
return null;
}
/// <summary/>
public virtual AstVisitAction VisitParameter(ParameterAst parameterAst)
{
return(AstVisitAction.Continue);
}
public override AstVisitAction VisitParameter(ParameterAst parameterAst)
{
return AstVisitAction.Continue;
}
public object VisitParameter(ParameterAst parameterAst)
{
return(AutomationNull.Value);
}
public override AstVisitAction VisitParameter(ParameterAst ast) { return CheckParent(ast); }