public MemberExpressionAst(IScriptExtent extent, ExpressionAst expression, CommandElementAst member, bool @static)
: base(extent)
{
this.Expression = expression;
this.Member = member;
this.Static = @static;
}
/// <summary>
/// Condition on the parameter that must be satisfied for the error to be raised.
/// </summary>
/// <param name="CmdAst"></param>
/// <param name="CeAst"></param>
/// <returns></returns>
public override bool ParameterCondition(CommandAst CmdAst, CommandElementAst CeAst)
{
if (CeAst is CommandParameterAst)
{
CommandParameterAst cmdParamAst = CeAst as CommandParameterAst;
if (String.Equals(cmdParamAst.ParameterName, "computername", StringComparison.OrdinalIgnoreCase))
{
List<string> localhostRepresentations = new List<string> { "localhost", ".", "::1", "127.0.0.1" };
Ast computerNameArgument = GetComputerNameArg(CmdAst, cmdParamAst.Extent.StartOffset);
if (null != computerNameArgument)
{
if (!localhostRepresentations.Contains(computerNameArgument.Extent.Text.ToLower()))
{
return computerNameArgument is ConstantExpressionAst;
}
return false;
}
if (null != cmdParamAst.Argument && !localhostRepresentations.Contains(cmdParamAst.Argument.ToString().Replace("\"", "").Replace("'", "").ToLower()))
{
return cmdParamAst.Argument is ConstantExpressionAst;
}
}
}
return false;
}
public InvokeMemberExpressionAst(IScriptExtent extent, ExpressionAst expression, CommandElementAst method, IEnumerable<ExpressionAst> arguments, bool @static) : base(extent, expression, method, @static)
{
if ((arguments != null) && arguments.Any<ExpressionAst>())
{
this.Arguments = new ReadOnlyCollection<ExpressionAst>(arguments.ToArray<ExpressionAst>());
base.SetParents((IEnumerable<Ast>) this.Arguments);
}
}
private static bool IsParameterName(CommandElementAst ast, string name)
{
var constantAst = ast as CommandParameterAst;
if (constantAst == null)
{
return false;
}
return String.Equals(constantAst.ParameterName, name, StringComparison.OrdinalIgnoreCase);
}
private static ConstantExpressionAst GetRootConstantExpression(CommandElementAst element)
{
while (element is MemberExpressionAst)
{
var memberExpression = (MemberExpressionAst)element;
element = memberExpression.Expression;
}
return element as ConstantExpressionAst;
}
public MemberExpressionAst(IScriptExtent extent, ExpressionAst expression, CommandElementAst member, bool @static) : base(extent)
{
if ((expression == null) || (member == null))
{
throw PSTraceSource.NewArgumentNullException((expression == null) ? "expression" : "member");
}
this.Expression = expression;
base.SetParent(expression);
this.Member = member;
base.SetParent(member);
this.Static = @static;
}
internal AstPair(CommandParameterAst parameterAst)
{
if ((parameterAst == null) || (parameterAst.Argument == null))
{
throw PSTraceSource.NewArgumentException("parameterAst");
}
base.Parameter = parameterAst;
base.ParameterArgumentType = AstParameterArgumentType.AstPair;
base.ParameterSpecified = true;
base.ArgumentSpecified = true;
base.ParameterName = parameterAst.ParameterName;
base.ParameterText = "-" + base.ParameterName + ":";
base.ArgumentType = parameterAst.Argument.StaticType;
this._parameterContainsArgument = true;
this._argument = parameterAst.Argument;
}
internal AstPair(CommandParameterAst parameterAst, ExpressionAst argumentAst)
{
if ((parameterAst != null) && (parameterAst.Argument != null))
{
throw PSTraceSource.NewArgumentException("parameterAst");
}
if ((parameterAst == null) && (argumentAst == null))
{
throw PSTraceSource.NewArgumentNullException("argumentAst");
}
base.Parameter = parameterAst;
base.ParameterArgumentType = AstParameterArgumentType.AstPair;
base.ParameterSpecified = parameterAst != null;
base.ArgumentSpecified = argumentAst != null;
base.ParameterName = (parameterAst != null) ? parameterAst.ParameterName : null;
base.ParameterText = (parameterAst != null) ? parameterAst.ParameterName : null;
base.ArgumentType = (argumentAst != null) ? argumentAst.StaticType : null;
this._parameterContainsArgument = false;
this._argument = argumentAst;
}
internal AstPair(CommandParameterAst parameterAst, ExpressionAst argumentAst)
{
if ((parameterAst != null) && (parameterAst.Argument != null))
{
throw PSTraceSource.NewArgumentException("parameterAst");
}
if ((parameterAst == null) && (argumentAst == null))
{
throw PSTraceSource.NewArgumentNullException("argumentAst");
}
base.Parameter = parameterAst;
base.ParameterArgumentType = AstParameterArgumentType.AstPair;
base.ParameterSpecified = parameterAst != null;
base.ArgumentSpecified = argumentAst != null;
base.ParameterName = (parameterAst != null) ? parameterAst.ParameterName : null;
base.ParameterText = (parameterAst != null) ? parameterAst.ParameterName : null;
base.ArgumentType = (argumentAst != null) ? argumentAst.StaticType : null;
this._parameterContainsArgument = false;
this._argument = argumentAst;
}
internal AstPair(CommandParameterAst parameterAst, CommandParameterAst argumentAst)
{
if ((parameterAst != null) && (parameterAst.Argument != null))
{
throw PSTraceSource.NewArgumentException("parameterAst");
}
if ((parameterAst == null) || (argumentAst == null))
{
throw PSTraceSource.NewArgumentNullException("argumentAst");
}
base.Parameter = parameterAst;
base.ParameterArgumentType = AstParameterArgumentType.AstPair;
base.ParameterSpecified = true;
base.ArgumentSpecified = true;
base.ParameterName = parameterAst.ParameterName;
base.ParameterText = parameterAst.ParameterName;
base.ArgumentType = typeof(string);
this._parameterContainsArgument = false;
this._argument = argumentAst;
this._argumentIsCommandParameterAst = true;
}
internal AstPair(CommandParameterAst parameterAst, CommandParameterAst argumentAst)
{
if ((parameterAst != null) && (parameterAst.Argument != null))
{
throw PSTraceSource.NewArgumentException("parameterAst");
}
if ((parameterAst == null) || (argumentAst == null))
{
throw PSTraceSource.NewArgumentNullException("argumentAst");
}
base.Parameter = parameterAst;
base.ParameterArgumentType = AstParameterArgumentType.AstPair;
base.ParameterSpecified = true;
base.ArgumentSpecified = true;
base.ParameterName = parameterAst.ParameterName;
base.ParameterText = parameterAst.ParameterName;
base.ArgumentType = typeof(string);
this._parameterContainsArgument = false;
this._argument = argumentAst;
this._argumentIsCommandParameterAst = true;
}
internal ParameterBindingResult(CompiledCommandParameter parameter, CommandElementAst value, Object constantValue)
{
this.Parameter = new ParameterMetadata(parameter);
this.Value = value;
this.ConstantValue = constantValue;
}
private ExpressionAst MemberInvokeRule(ExpressionAst targetExpr, Token lParen, Token operatorToken, CommandElementAst member)
{
IScriptExtent scriptExtent;
List<ExpressionAst> expressionAsts = new List<ExpressionAst>();
bool flag = false;
bool flag1 = this._disableCommaOperator;
Token token = null;
try
{
this._disableCommaOperator = true;
while (true)
{
this.SkipNewlines();
ExpressionAst expressionAst = this.ExpressionRule();
if (expressionAst != null)
{
expressionAsts.Add(expressionAst);
this.SkipNewlines();
token = this.NextToken();
if (token.Kind != TokenKind.Comma)
{
this.UngetToken(token);
token = null;
break;
}
}
else
{
if (token == null)
{
break;
}
object[] objArray = new object[1];
objArray[0] = TokenKind.Comma.Text();
this.ReportIncompleteInput(Parser.After(token), ParserStrings.MissingExpressionAfterToken, objArray);
flag = true;
break;
}
}
}
finally
{
this._disableCommaOperator = flag1;
}
this.SkipNewlines();
Token token1 = this.NextToken();
if (token1.Kind != TokenKind.RParen)
{
this.UngetToken(token1);
if (!flag)
{
Parser parser = this;
if (expressionAsts.Any<ExpressionAst>())
{
scriptExtent = Parser.After(expressionAsts.Last<ExpressionAst>());
}
else
{
scriptExtent = Parser.After(lParen);
}
parser.ReportIncompleteInput(scriptExtent, ParserStrings.MissingEndParenthesisInMethodCall, new object[0]);
}
token1 = null;
}
object[] objArray1 = new object[4];
objArray1[0] = token1;
objArray1[1] = token;
objArray1[2] = expressionAsts.LastOrDefault<ExpressionAst>();
objArray1[3] = lParen;
return new InvokeMemberExpressionAst(Parser.ExtentOf(targetExpr, Parser.ExtentFromFirstOf(objArray1)), targetExpr, member, expressionAsts, operatorToken.Kind == TokenKind.ColonColon);
}
private static StringConstantExpressionAst MergeMemberAccessExpressions(Ast left, CommandElementAst right)
{
var extent = MergeExtents(left.Extent, right.Extent);
return new StringConstantExpressionAst(extent, extent.Text, StringConstantType.BareWord);
}
/// <summary>
/// Condition on the parameter that must be satisfied for the error to be raised.
/// </summary>
/// <param name="CmdAst"></param>
/// <param name="CeAst"></param>
/// <returns></returns>
public override bool ParameterCondition(CommandAst CmdAst, CommandElementAst CeAst)
{
return CeAst is CommandParameterAst && String.Equals((CeAst as CommandParameterAst).ParameterName, "AsPlainText", StringComparison.OrdinalIgnoreCase);
}
public InvokeMemberExpressionAst(IScriptExtent extent, ExpressionAst expression, CommandElementAst method, IEnumerable<ExpressionAst> arguments, bool @static)
: base(extent, expression, method, @static)
{
this.Arguments = arguments.ToReadOnlyCollection();
}
private Expression GetCommandArgumentExpression(CommandElementAst element)
{
ConstantExpressionAst ast = element as ConstantExpressionAst;
if ((ast != null) && LanguagePrimitives.IsNumeric(LanguagePrimitives.GetTypeCode(ast.StaticType)))
{
string text = ast.Extent.Text;
if (!text.Equals(ast.Value.ToString(), StringComparison.Ordinal))
{
return Expression.Constant(ParserOps.WrappedNumber(ast.Value, text));
}
}
Expression expression = this.Compile(element);
if (expression.Type.Equals(typeof(object[])))
{
return Expression.Call(CachedReflectionInfo.PipelineOps_CheckAutomationNullInCommandArgumentArray, expression);
}
if ((ast == null) && expression.Type.Equals(typeof(object)))
{
expression = Expression.Call(CachedReflectionInfo.PipelineOps_CheckAutomationNullInCommandArgument, expression);
}
return expression;
}
CommandParameter ConvertCommandElementToCommandParameter(CommandElementAst commandElement)
{
if (commandElement is CommandParameterAst)
{
var commandParameterAst = commandElement as CommandParameterAst;
return new CommandParameter(commandParameterAst.ParameterName, commandParameterAst.Argument);
}
else if (commandElement is StringConstantExpressionAst)
{
var stringConstantExpressionAst = commandElement as StringConstantExpressionAst;
return new CommandParameter(null, stringConstantExpressionAst.Value);
}
else if (commandElement is ExpressionAst)
{
return new CommandParameter(null, EvaluateAst(commandElement));
}
else throw new NotImplementedException();
}
private string GetCommandName(CommandElementAst commandNameAst, bool isTrustedInput)
{
var exprAst = commandNameAst as ExpressionAst;
string commandName;
if (exprAst != null)
{
var value = GetExpressionValue(exprAst, isTrustedInput);
if (value == null)
{
ScriptBlockToPowerShellChecker.ThrowError(
new ScriptBlockToPowerShellNotSupportedException(
"CantConvertWithScriptBlockInvocation", null, AutomationExceptions.CantConvertWithScriptBlockInvocation),
exprAst);
}
if (value is CommandInfo)
{
commandName = ((CommandInfo)value).Name;
}
else
{
commandName = value as string;
}
}
else
{
// If this assertion fires, the command name is determined incorrectly.
Diagnostics.Assert(commandNameAst is CommandParameterAst, "Unexpected element not handled correctly.");
commandName = commandNameAst.Extent.Text;
}
if (string.IsNullOrWhiteSpace(commandName))
{
// TODO: could use a better error here
throw new ScriptBlockToPowerShellNotSupportedException(
"CantConvertWithScriptBlockInvocation",
null,
AutomationExceptions.CantConvertWithScriptBlockInvocation);
}
return commandName;
}
/// <summary> /// Condition on the parameter that must be satisfied for the error to be raised. /// </summary> /// <param name="CmdAst"></param> /// <param name="CeAst"></param> /// <returns></returns> public abstract bool ParameterCondition(CommandAst CmdAst, CommandElementAst CeAst);
public InvokeMemberExpressionAst(IScriptExtent extent, ExpressionAst expression, CommandElementAst method, IEnumerable <ExpressionAst> arguments, bool @static)
: base(extent, expression, method, @static)
{
this.Arguments = arguments.ToReadOnlyCollection();
}
public InvokeMemberExpressionAst(IScriptExtent extent, ExpressionAst expression, CommandElementAst method, IEnumerable <ExpressionAst> arguments, bool @static) : base(extent, expression, method, @static)
{
if ((arguments != null) && arguments.Any <ExpressionAst>())
{
this.Arguments = new ReadOnlyCollection <ExpressionAst>(arguments.ToArray <ExpressionAst>());
base.SetParents((IEnumerable <Ast>) this.Arguments);
}
}
internal AstPair(CommandParameterAst parameterAst, CommandElementAst argumentAst)
{
if (parameterAst != null && parameterAst.Argument != null)
throw PSTraceSource.NewArgumentException("parameterAst");
if (parameterAst == null || argumentAst == null)
throw PSTraceSource.NewArgumentNullException("argumentAst");
Parameter = parameterAst;
ParameterArgumentType = AstParameterArgumentType.AstPair;
ParameterSpecified = true;
ArgumentSpecified = true;
ParameterName = parameterAst.ParameterName;
ParameterText = parameterAst.ParameterName;
ArgumentType = typeof(string);
ParameterContainsArgument = false;
Argument = argumentAst;
ArgumentIsCommandParameterAst = true;
}
private Expression GetCommandArgumentExpression(CommandElementAst element)
{
var constElement = element as ConstantExpressionAst;
if (constElement != null && LanguagePrimitives.IsNumeric(LanguagePrimitives.GetTypeCode(constElement.StaticType)))
{
var commandArgumentText = constElement.Extent.Text;
if (!commandArgumentText.Equals(constElement.Value.ToString(), StringComparison.Ordinal))
{
// If the ToString on the constant would differ from what the user specified, then wrap the
// value so we can recover the actual argument text.
return Expression.Constant(ParserOps.WrappedNumber(constElement.Value, commandArgumentText));
}
}
var result = Compile(element);
if (result.Type == typeof(object[]))
{
result = Expression.Call(CachedReflectionInfo.PipelineOps_CheckAutomationNullInCommandArgumentArray, result);
}
else if (constElement == null && result.Type == typeof(object))
{
result = Expression.Call(CachedReflectionInfo.PipelineOps_CheckAutomationNullInCommandArgument, result);
}
return result;
}
private string GetCommandName(CommandElementAst commandNameAst)
{
string name;
ExpressionAst exprAst = commandNameAst as ExpressionAst;
if (exprAst != null)
{
object expressionValue = this.GetExpressionValue(exprAst);
if (expressionValue == null)
{
ScriptBlockToPowerShellChecker.ThrowError(new ScriptBlockToPowerShellNotSupportedException("CantConvertWithScriptBlockInvocation", null, AutomationExceptions.CantConvertWithScriptBlockInvocation, new object[0]), exprAst);
}
if (expressionValue is CommandInfo)
{
name = ((CommandInfo) expressionValue).Name;
}
else
{
name = expressionValue as string;
}
}
else
{
name = commandNameAst.Extent.Text;
}
if (string.IsNullOrWhiteSpace(name))
{
throw new ScriptBlockToPowerShellNotSupportedException("CantConvertWithScriptBlockInvocation", null, AutomationExceptions.CantConvertWithScriptBlockInvocation, new object[0]);
}
return name;
}
/// <summary>
/// Creates a StaticBindingException
/// </summary>
/// <param name="commandElement">The element associated with the exception</param>
/// <param name="exception">The parameter binding exception that got raised</param>
internal StaticBindingError(CommandElementAst commandElement, ParameterBindingException exception)
{
this.CommandElement = commandElement;
this.BindingException = exception;
}
private ExpressionAst MemberInvokeRule(ExpressionAst targetExpr, Token lBracket, Token operatorToken, CommandElementAst member)
{
//G invocation-expression: target-expression passed as a parameter. lBracket can be '(' or '{'.
//G target-expression member-name invoke-param-list
//G invoke-param-list:
//G '(' invoke-param-paren-list
//G script-block
IScriptExtent lastExtent = null;
List<ExpressionAst> arguments;
if (lBracket.Kind == TokenKind.LParen)
{
arguments = this.InvokeParamParenListRule(lBracket, out lastExtent);
}
else
{
arguments = new List<ExpressionAst>();
// handle the construct $x.methodName{2+2} as through it had been written $x.methodName({2+2})
SkipNewlines();
ExpressionAst argument = ScriptBlockExpressionRule(lBracket);
arguments.Add(argument);
lastExtent = argument.Extent;
}
return new InvokeMemberExpressionAst(ExtentOf(targetExpr, lastExtent), targetExpr, member, arguments, operatorToken.Kind == TokenKind.ColonColon);
}
