public string GetCommandName()
{
StringConstantExpressionAst ast = this.CommandElements[0] as StringConstantExpressionAst;
if (ast == null)
{
return(null);
}
return(ast.Value);
}
public Expression SetValue(Compiler compiler, Expression rhs)
{
StringConstantExpressionAst member = this.MemberExpression.Member as StringConstantExpressionAst;
if (member != null)
{
return(Expression.Dynamic(PSSetMemberBinder.Get(member.Value, this.MemberExpression.Static), typeof(object), this.CachedTarget ?? this.GetTargetExpr(compiler), rhs));
}
return(Expression.Dynamic(PSSetDynamicMemberBinder.Get(this.MemberExpression.Static), typeof(object), this.CachedTarget ?? this.GetTargetExpr(compiler), this.CachedPropertyExpr ?? this.GetPropertyExpr(compiler), rhs));
}
public Expression SetValue(Compiler compiler, Expression rhs)
{
PSMethodInvocationConstraints invokeMemberConstraints = Compiler.GetInvokeMemberConstraints(this.InvokeMemberExpressionAst);
StringConstantExpressionAst member = this.InvokeMemberExpressionAst.Member as StringConstantExpressionAst;
Expression targetExpr = this.GetTargetExpr(compiler);
IEnumerable <Expression> argumentExprs = this.GetArgumentExprs(compiler);
if (member == null)
{
throw new NotImplementedException("invoke method dynamic name");
}
return(Compiler.InvokeMember(member.Value, invokeMemberConstraints, targetExpr, argumentExprs.Append <Expression>(rhs), false, true));
}
public override AstVisitAction VisitCommand(CommandAst commandAst)
{
StringConstantExpressionAst ast = commandAst.CommandElements[0] as StringConstantExpressionAst;
if ((ast != null) && hashOfPessimizingCmdlets.Contains(ast.Value))
{
this._disableOptimizations = true;
}
if (commandAst.InvocationOperator == TokenKind.Dot)
{
this._disableOptimizations = true;
}
return(AstVisitAction.Continue);
}
private static string GetLabel(ExpressionAst expr)
{
if (expr == null)
{
return("");
}
StringConstantExpressionAst ast = expr as StringConstantExpressionAst;
if (ast == null)
{
return(null);
}
return(ast.Value);
}
public override object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
if (stringConstantExpressionAst == ast)
{
var newAst = new StringConstantExpressionAst(stringConstantExpressionAst.Extent,
code,
stringConstantExpressionAst.StringConstantType);
rootAst.ModifiedAsts.Add(newAst);
return newAst;
}
else
return base.VisitStringConstantExpression(stringConstantExpressionAst);
}
public override object VisitInvokeMemberExpression(InvokeMemberExpressionAst invokeMemberExpressionAst)
{
var newExpression = VisitElement(invokeMemberExpressionAst.Expression);
CommandElementAst newMethod;
if (invokeMemberExpressionAst == ast)
{
newMethod = new StringConstantExpressionAst(invokeMemberExpressionAst.Member.Extent, newMethodName,
((StringConstantExpressionAst) invokeMemberExpressionAst.Member).StringConstantType);
rootAst.ModifiedAsts.Add(newMethod);
}
else
{
newMethod = VisitElement(invokeMemberExpressionAst.Member);
}
var newArguments = VisitElements(invokeMemberExpressionAst.Arguments);
return new InvokeMemberExpressionAst(invokeMemberExpressionAst.Extent, newExpression, newMethod,
newArguments, invokeMemberExpressionAst.Static);
}
public Expression GetValue(Compiler compiler, List <Expression> exprs, List <ParameterExpression> temps)
{
Expression targetExpr = this.GetTargetExpr(compiler);
ParameterExpression item = Expression.Parameter(targetExpr.Type);
temps.Add(item);
this.CachedTarget = item;
exprs.Add(Expression.Assign(item, targetExpr));
StringConstantExpressionAst member = this.MemberExpression.Member as StringConstantExpressionAst;
if (member != null)
{
return(Expression.Dynamic(PSGetMemberBinder.Get(member.Value, this.MemberExpression.Static), typeof(object), item));
}
ParameterExpression expression4 = Expression.Parameter(this.GetPropertyExpr(compiler).Type);
temps.Add(expression4);
exprs.Add(Expression.Assign(expression4, compiler.Compile(this.MemberExpression.Member)));
this.CachedPropertyExpr = expression4;
return(Expression.Dynamic(PSGetDynamicMemberBinder.Get(this.MemberExpression.Static), typeof(object), item, expression4));
}
public Expression GetValue(Compiler compiler, List <Expression> exprs, List <ParameterExpression> temps)
{
PSMethodInvocationConstraints invokeMemberConstraints = Compiler.GetInvokeMemberConstraints(this.InvokeMemberExpressionAst);
Expression targetExpr = this.GetTargetExpr(compiler);
this._targetExprTemp = Expression.Variable(targetExpr.Type);
exprs.Add(Expression.Assign(this._targetExprTemp, targetExpr));
IEnumerable <Expression> argumentExprs = this.GetArgumentExprs(compiler);
this._argExprTemps = (from arg in argumentExprs select Expression.Variable(arg.Type)).ToArray <ParameterExpression>();
exprs.AddRange((IEnumerable <Expression>)argumentExprs.Zip <Expression, ParameterExpression, BinaryExpression>(this._argExprTemps, (arg, temp) => Expression.Assign(temp, arg)));
temps.Add(this._targetExprTemp);
temps.AddRange(this._argExprTemps);
StringConstantExpressionAst member = this.InvokeMemberExpressionAst.Member as StringConstantExpressionAst;
if (member == null)
{
throw new NotImplementedException("invoke method dynamic name");
}
return(Compiler.InvokeMember(member.Value, invokeMemberConstraints, this._targetExprTemp, this._argExprTemps, false, false));
}
private void BreakOrContinue(ExpressionAst label, Func <LoopGotoTargets, Block> fieldSelector)
{
Func <LoopGotoTargets, Block> selector = null;
Block next = null;
if (label != null)
{
label.Accept(this);
if (this._loopTargets.Any <LoopGotoTargets>())
{
Func <LoopGotoTargets, bool> predicate = null;
StringConstantExpressionAst labelStrAst = label as StringConstantExpressionAst;
if (labelStrAst != null)
{
if (predicate == null)
{
predicate = t => t.Label.Equals(labelStrAst.Value, StringComparison.OrdinalIgnoreCase);
}
if (selector == null)
{
selector = t => fieldSelector(t);
}
next = this._loopTargets.Where <LoopGotoTargets>(predicate).Select <LoopGotoTargets, Block>(selector).LastOrDefault <Block>();
}
}
}
else if (this._loopTargets.Count > 0)
{
next = fieldSelector(this._loopTargets.Last <LoopGotoTargets>());
}
if (next != null)
{
this._currentBlock.FlowsTo(next);
}
this._currentBlock = new Block();
}
public virtual AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return AstVisitAction.Continue;
}
public System.Object VisitStringConstantExpression(System.Management.Automation.Language.StringConstantExpressionAst stringConstantExpressionAst)
{
IScriptExtent mappedExtent = MapExtent(stringConstantExpressionAst.Extent);
return(new StringConstantExpressionAst(mappedExtent, stringConstantExpressionAst.Value, stringConstantExpressionAst.StringConstantType));
}
/// <summary/>
public virtual object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return _decorated.VisitStringConstantExpression(stringConstantExpressionAst);
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return AstVisitAction.Continue;
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return Expression.Constant(stringConstantExpressionAst.Value);
}
public CSharpPatcher(string code, StringConstantExpressionAst ast, PSScriptAst rootAst)
: base(rootAst)
{
this.code = code;
this.ast = ast;
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return true;
}
public CSharpClassAst(TypeDeclaration tree, StringConstantExpressionAst ast)
{
this.tree = tree;
Ast = ast;
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
// Constants are allowed.
return AstVisitAction.Continue;
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return stringConstantExpressionAst.Value;
}
/// <summary/> public virtual AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst) => DefaultVisit(stringConstantExpressionAst);
internal CommandBaseAst CommandRule()
{
Token token;
bool flag;
bool flag2;
IScriptExtent extent;
bool flag3 = false;
bool flag4 = false;
RedirectionAst[] redirections = null;
List<CommandElementAst> elements = new List<CommandElementAst>();
TokenizerMode mode = this._tokenizer.Mode;
try
{
CommandArgumentContext commandNameAfterInvoationOperator;
this.SetTokenizerMode(TokenizerMode.Command);
Token first = this.NextToken();
token = first;
extent = first.Extent;
flag = false;
flag2 = false;
if (first.Kind == TokenKind.Dot)
{
flag = true;
first = this.NextToken();
commandNameAfterInvoationOperator = CommandArgumentContext.CommandNameAfterInvocationOperator;
}
else if (first.Kind == TokenKind.Ampersand)
{
flag2 = true;
first = this.NextToken();
commandNameAfterInvoationOperator = CommandArgumentContext.CommandNameAfterInvocationOperator;
}
else
{
commandNameAfterInvoationOperator = CommandArgumentContext.CommandName;
}
bool flag5 = true;
while (flag5)
{
switch (first.Kind)
{
case TokenKind.Parameter:
if (((commandNameAfterInvoationOperator & CommandArgumentContext.CommandName) != 0) || flag3)
{
extent = first.Extent;
first.TokenFlags |= TokenFlags.CommandName;
StringConstantExpressionAst item = new StringConstantExpressionAst(first.Extent, first.Text, StringConstantType.BareWord);
elements.Add(item);
}
else
{
ExpressionAst commandArgument;
IScriptExtent extent2;
ParameterToken token3 = (ParameterToken) first;
if (token3.UsedColon && (this.PeekToken().Kind != TokenKind.Comma))
{
commandArgument = this.GetCommandArgument(CommandArgumentContext.CommandArgument, this.NextToken());
if (commandArgument == null)
{
extent2 = token3.Extent;
this.ReportError(After(extent2), ParserStrings.ParameterRequiresArgument, new object[] { token3.Text });
}
else
{
extent2 = ExtentOf(first, commandArgument);
}
}
else
{
commandArgument = null;
extent2 = first.Extent;
}
extent = extent2;
CommandParameterAst ast3 = new CommandParameterAst(extent2, token3.ParameterName, commandArgument, first.Extent);
elements.Add(ast3);
}
goto Label_0404;
case TokenKind.NewLine:
case TokenKind.RParen:
case TokenKind.RCurly:
case TokenKind.Semi:
case TokenKind.AndAnd:
case TokenKind.OrOr:
case TokenKind.Pipe:
case TokenKind.EndOfInput:
{
this.UngetToken(first);
flag5 = false;
continue;
}
case TokenKind.Ampersand:
extent = first.Extent;
this.ReportError(first.Extent, ParserStrings.MissingArgument, new object[0]);
goto Label_0404;
case TokenKind.Comma:
extent = first.Extent;
this.ReportError(first.Extent, ParserStrings.MissingArgument, new object[0]);
this.SkipNewlines();
goto Label_0404;
case TokenKind.MinusMinus:
extent = first.Extent;
elements.Add(flag3 ? ((CommandElementAst) new StringConstantExpressionAst(first.Extent, first.Text, StringConstantType.BareWord)) : ((CommandElementAst) new CommandParameterAst(first.Extent, "-", null, first.Extent)));
flag3 = true;
goto Label_0404;
case TokenKind.Redirection:
case TokenKind.RedirectInStd:
if ((commandNameAfterInvoationOperator & CommandArgumentContext.CommandName) != 0)
{
break;
}
if (redirections == null)
{
redirections = new RedirectionAst[7];
}
this.RedirectionRule((RedirectionToken) first, redirections, ref extent);
goto Label_0404;
default:
{
if ((first.Kind == TokenKind.InlineScript) && (commandNameAfterInvoationOperator == CommandArgumentContext.CommandName))
{
flag5 = this.InlineScriptRule(first, elements);
extent = elements.Last<CommandElementAst>().Extent;
if (flag5)
{
goto Label_0404;
}
continue;
}
ExpressionAst ast4 = this.GetCommandArgument(commandNameAfterInvoationOperator, first);
StringToken token4 = first as StringToken;
if ((token4 != null) && string.Equals(token4.Value, "--%", StringComparison.OrdinalIgnoreCase))
{
elements.Add(ast4);
extent = ast4.Extent;
StringToken verbatimCommandArgumentToken = this.GetVerbatimCommandArgumentToken();
if (verbatimCommandArgumentToken != null)
{
flag4 = true;
flag5 = false;
ast4 = new StringConstantExpressionAst(verbatimCommandArgumentToken.Extent, verbatimCommandArgumentToken.Value, StringConstantType.BareWord);
elements.Add(ast4);
extent = ast4.Extent;
}
}
else
{
extent = ast4.Extent;
elements.Add(ast4);
}
goto Label_0404;
}
}
extent = first.Extent;
elements.Add(new StringConstantExpressionAst(first.Extent, first.Text, StringConstantType.BareWord));
Label_0404:
if (!flag4)
{
commandNameAfterInvoationOperator = CommandArgumentContext.CommandArgument;
first = this.NextToken();
}
}
}
finally
{
this.SetTokenizerMode(mode);
}
if (elements.Count == 0)
{
if (flag || flag2)
{
IScriptExtent extent3 = token.Extent;
this.ReportError(extent3, ParserStrings.MissingExpression, new object[] { token.Text });
return new CommandExpressionAst(extent3, new ErrorExpressionAst(extent3, null), null);
}
return null;
}
return new CommandAst(ExtentOf(token, extent), elements, (flag || flag2) ? token.Kind : TokenKind.Unknown, (redirections != null) ? redirections.Where<RedirectionAst>(r => r != null) : null);
}
private ExpressionAst PrimaryExpressionRule(bool withMemberAccess)
{
ExpressionAst constantExpressionAst;
Token token = this.NextToken();
TokenKind kind = token.Kind;
if (kind == TokenKind.Variable || kind == TokenKind.SplattedVariable)
{
constantExpressionAst = this.CheckUsingVariable((VariableToken)token, withMemberAccess);
if (withMemberAccess)
{
return this.CheckPostPrimaryExpressionOperators(this.NextMemberAccessToken(true), constantExpressionAst);
}
else
{
return constantExpressionAst;
}
this.UngetToken(token);
return null;
}
else if (kind == TokenKind.Parameter)
{
this.UngetToken(token);
return null;
}
else if (kind == TokenKind.Number)
{
constantExpressionAst = new ConstantExpressionAst((NumberToken)token);
if (withMemberAccess)
{
return this.CheckPostPrimaryExpressionOperators(this.NextMemberAccessToken(true), constantExpressionAst);
}
else
{
return constantExpressionAst;
}
this.UngetToken(token);
return null;
}
if (kind == TokenKind.StringLiteral || kind == TokenKind.HereStringLiteral)
{
constantExpressionAst = new StringConstantExpressionAst((StringToken)token);
}
else if (kind == TokenKind.StringExpandable || kind == TokenKind.HereStringExpandable)
{
constantExpressionAst = this.ExpandableStringRule((StringExpandableToken)token);
}
else if (kind == TokenKind.LParen)
{
constantExpressionAst = this.ParenthesizedExpressionRule(token);
}
else if (kind == TokenKind.RParen || kind == TokenKind.RCurly || kind == TokenKind.LBracket || kind == TokenKind.RBracket)
{
this.UngetToken(token);
return null;
}
else if (kind == TokenKind.LCurly)
{
constantExpressionAst = this.ScriptBlockExpressionRule(token);
}
else if (kind == TokenKind.AtParen || kind == TokenKind.DollarParen)
{
constantExpressionAst = this.SubExpressionRule(token);
}
else if (kind == TokenKind.AtCurly)
{
constantExpressionAst = this.HashExpressionRule(token);
}
else
{
this.UngetToken(token);
return null;
}
if (withMemberAccess)
{
return this.CheckPostPrimaryExpressionOperators(this.NextMemberAccessToken(true), constantExpressionAst);
}
else
{
return constantExpressionAst;
}
this.UngetToken(token);
return null;
}
private bool InlineScriptRule(Token inlineScriptToken, List<CommandElementAst> elements)
{
StringConstantExpressionAst stringConstantExpressionAst = new StringConstantExpressionAst(inlineScriptToken.Extent, inlineScriptToken.Text, StringConstantType.BareWord);
Token tokenFlags = inlineScriptToken;
tokenFlags.TokenFlags = tokenFlags.TokenFlags | TokenFlags.CommandName;
elements.Add(stringConstantExpressionAst);
this.SkipNewlines();
Token token = this.NextToken();
if (token.Kind == TokenKind.LCurly)
{
ExpressionAst expressionAst = this.ScriptBlockExpressionRule(token);
elements.Add(expressionAst);
return true;
}
else
{
this.UngetToken(token);
object[] text = new object[1];
text[0] = inlineScriptToken.Text;
this.ReportIncompleteInput(Parser.After(inlineScriptToken), ParserStrings.MissingStatementAfterKeyword, text);
return false;
}
}
/// <summary/>
public virtual object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return(null);
}
private AssignmentStatementAst GetAssignmentStatementAst(ExpressionAst leftExpressionAst, TokenKind tokenKind)
{
var expressionAst = new StringConstantExpressionAst(extent, "tmp", StringConstantType.BareWord);
var commandExpressionAst = new CommandExpressionAst(extent, expressionAst, redirections);
return new AssignmentStatementAst(extent, leftExpressionAst, tokenKind, commandExpressionAst, extent);
}
private ExpressionAst GetCommandArgument(CommandArgumentContext context, Token token)
{
ExpressionAst ast;
List<ExpressionAst> source = null;
Token token2 = null;
bool flag = false;
Label_0006:
switch (token.Kind)
{
case TokenKind.Variable:
case TokenKind.SplattedVariable:
case TokenKind.Number:
case TokenKind.StringLiteral:
case TokenKind.StringExpandable:
case TokenKind.HereStringLiteral:
case TokenKind.HereStringExpandable:
case TokenKind.LParen:
case TokenKind.LCurly:
case TokenKind.AtParen:
case TokenKind.AtCurly:
case TokenKind.DollarParen:
this.UngetToken(token);
ast = this.PrimaryExpressionRule(true);
break;
case TokenKind.Generic:
{
if ((context & CommandArgumentContext.CommandName) != 0)
{
token.TokenFlags |= TokenFlags.CommandName;
}
StringToken token3 = (StringToken)token;
StringExpandableToken expandableStringToken = token3 as StringExpandableToken;
if ((expandableStringToken != null) && (context != CommandArgumentContext.CommandName))
{
List<ExpressionAst> nestedExpressions = this.ParseNestedExpressions(expandableStringToken);
ast = new ExpandableStringExpressionAst(expandableStringToken, expandableStringToken.Value, expandableStringToken.FormatString, nestedExpressions);
}
else
{
ast = new StringConstantExpressionAst(token3.Extent, token3.Value, StringConstantType.BareWord);
if (string.Equals(token3.Value, "--%", StringComparison.OrdinalIgnoreCase))
{
flag = true;
}
}
break;
}
case TokenKind.NewLine:
case TokenKind.EndOfInput:
case TokenKind.RParen:
case TokenKind.RCurly:
case TokenKind.Semi:
case TokenKind.AndAnd:
case TokenKind.OrOr:
case TokenKind.Ampersand:
case TokenKind.Pipe:
case TokenKind.Comma:
case TokenKind.MinusMinus:
case TokenKind.Redirection:
case TokenKind.RedirectInStd:
this.UngetToken(token);
if (token2 != null)
{
this.ReportIncompleteInput(After(token2), ParserStrings.MissingExpression, new object[] { "," });
return new ErrorExpressionAst(ExtentOf(source.First<ExpressionAst>(), token2), (IEnumerable<Ast>)source);
}
return null;
default:
ast = new StringConstantExpressionAst(token.Extent, token.Text, StringConstantType.BareWord);
switch (context)
{
case CommandArgumentContext.CommandName:
case CommandArgumentContext.CommandNameAfterInvocationOperator:
token.TokenFlags |= TokenFlags.CommandName;
break;
case CommandArgumentContext.FileName:
case CommandArgumentContext.CommandArgument:
case CommandArgumentContext.SwitchCondition:
token.SetIsCommandArgument();
break;
}
break;
}
if ((context == CommandArgumentContext.CommandArgument) && !flag)
{
token = this.PeekToken();
if (token.Kind == TokenKind.Comma)
{
token2 = token;
if (source == null)
{
source = new List<ExpressionAst>();
}
source.Add(ast);
this.SkipToken();
this.SkipNewlines();
token = this.NextToken();
goto Label_0006;
}
}
if (source != null)
{
source.Add(ast);
return new ArrayLiteralAst(ExtentOf(source.First<ExpressionAst>(), source.Last<ExpressionAst>()), source);
}
return ast;
}
public void LastAssignmentStatementAst_should_be_null_when_not_VariableExpression()
{
var leftExpressionAst = new StringConstantExpressionAst(extent, varName, StringConstantType.BareWord);
var assignmentStatementAst = GetAssignmentStatementAst(leftExpressionAst, TokenKind.Equals);
visitor.VisitAssignmentStatement(assignmentStatementAst);
visitor.LastAssignmentStatementAst.Should().BeNull();
}
public static void PatchCSharpCode(this PSScriptAst psScriptAst, string code, StringConstantExpressionAst ast)
{
var patchedAst = psScriptAst.ScriptBlockAst.Visit(new CSharpPatcher(code, ast, psScriptAst)) as ScriptBlockAst;
psScriptAst.ScriptBlockAst = patchedAst;
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return(AstVisitAction.Continue);
}
private ExpressionAst ExpandableStringRule(StringExpandableToken strToken)
{
//G value:
//G literal
ExpressionAst expr;
// We need to scan the nested tokens even if there was some error. This is used by the tab completion: "pshome is $psh<tab>
if (strToken.NestedTokens != null)
{
List<ExpressionAst> nestedExpressions = ParseNestedExpressions(strToken);
expr = new ExpandableStringExpressionAst(strToken, strToken.Value, strToken.FormatString, nestedExpressions);
}
else
{
expr = new StringConstantExpressionAst(strToken);
}
return expr;
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst ast)
{
return this.Check(ast);
}
private ExpressionAst PrimaryExpressionRule(bool withMemberAccess)
{
//G primary-expression:
//G value
//G member-access
//G element-access
//G invocation-expression
//G post-increment-expression
//G post-decrement-expression
//G value:
//G parenthesized-expression
//G sub-expression
//G array-expression
//G script-block-expression
//G hash-literal-expression
//G literal
//G type-literal
//G variable
ExpressionAst expr;
Token token = NextToken();
switch (token.Kind)
{
case TokenKind.SplattedVariable:
case TokenKind.Variable:
expr = CheckUsingVariable((VariableToken)token, withMemberAccess: withMemberAccess);
break;
case TokenKind.Number:
expr = new ConstantExpressionAst((NumberToken)token);
break;
case TokenKind.HereStringExpandable:
case TokenKind.StringExpandable:
expr = ExpandableStringRule((StringExpandableToken)token);
break;
case TokenKind.HereStringLiteral:
case TokenKind.StringLiteral:
expr = new StringConstantExpressionAst((StringToken)token);
break;
case TokenKind.LParen:
expr = ParenthesizedExpressionRule(token);
break;
case TokenKind.AtParen:
case TokenKind.DollarParen:
expr = SubExpressionRule(token);
break;
case TokenKind.AtCurly:
expr = HashExpressionRule(token, false /* parsingSchemaElement */ );
break;
case TokenKind.LCurly:
expr = ScriptBlockExpressionRule(token);
break;
default:
UngetToken(token);
return null;
}
if (!withMemberAccess)
{
return expr;
}
return CheckPostPrimaryExpressionOperators(NextMemberAccessToken(true), expr);
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
throw new NotImplementedException(); //VisitStringConstantExpression(stringConstantExpressionAst);
}
private bool PrepareCommandElements(ExecutionContext context)
{
int num = 0;
bool dotSource = this._commandAst.InvocationOperator == TokenKind.Dot;
CommandProcessorBase base2 = null;
string resolvedCommandName = null;
bool flag2 = false;
try
{
base2 = this.PrepareFromAst(context, out resolvedCommandName) ?? context.CreateCommand(resolvedCommandName, dotSource);
}
catch (RuntimeException exception)
{
CommandProcessorBase.CheckForSevereException(exception);
if ((this._commandAst.IsInWorkflow() && (resolvedCommandName != null)) && CompletionCompleters.PseudoWorkflowCommands.Contains <string>(resolvedCommandName, StringComparer.OrdinalIgnoreCase))
{
flag2 = true;
}
else
{
return(false);
}
}
CommandProcessor commandProcessor = base2 as CommandProcessor;
ScriptCommandProcessorBase base3 = base2 as ScriptCommandProcessorBase;
bool flag3 = (commandProcessor != null) && commandProcessor.CommandInfo.ImplementsDynamicParameters;
List <object> list = flag3 ? new List <object>(this._commandElements.Count) : null;
if (((commandProcessor != null) || (base3 != null)) || flag2)
{
num++;
while (num < this._commandElements.Count)
{
CommandParameterAst parameterAst = this._commandElements[num] as CommandParameterAst;
if (parameterAst != null)
{
if (list != null)
{
list.Add(parameterAst.Extent.Text);
}
AstPair item = (parameterAst.Argument != null) ? new AstPair(parameterAst, parameterAst.Argument) : new AstPair(parameterAst);
this._arguments.Add(item);
}
else
{
StringConstantExpressionAst ast2 = this._commandElements[num] as StringConstantExpressionAst;
if ((ast2 == null) || !ast2.Value.Trim().Equals("-", StringComparison.OrdinalIgnoreCase))
{
ExpressionAst argumentAst = this._commandElements[num] as ExpressionAst;
if (argumentAst != null)
{
if (list != null)
{
list.Add(argumentAst.Extent.Text);
}
this._arguments.Add(new AstPair(null, argumentAst));
}
}
}
num++;
}
}
if (commandProcessor != null)
{
this._function = false;
if (flag3)
{
ParameterBinderController.AddArgumentsToCommandProcessor(commandProcessor, list.ToArray());
bool flag4 = false;
bool flag5 = false;
do
{
CommandProcessorBase currentCommandProcessor = context.CurrentCommandProcessor;
try
{
context.CurrentCommandProcessor = commandProcessor;
commandProcessor.SetCurrentScopeToExecutionScope();
if (!flag4)
{
commandProcessor.CmdletParameterBinderController.BindCommandLineParametersNoValidation(commandProcessor.arguments);
}
else
{
flag5 = true;
commandProcessor.CmdletParameterBinderController.ClearUnboundArguments();
commandProcessor.CmdletParameterBinderController.BindCommandLineParametersNoValidation(new Collection <CommandParameterInternal>());
}
}
catch (ParameterBindingException exception2)
{
if ((exception2.ErrorId == "MissingArgument") || (exception2.ErrorId == "AmbiguousParameter"))
{
flag4 = true;
}
}
catch (Exception exception3)
{
CommandProcessorBase.CheckForSevereException(exception3);
}
finally
{
context.CurrentCommandProcessor = currentCommandProcessor;
commandProcessor.RestorePreviousScope();
}
}while (flag4 && !flag5);
}
this._commandInfo = commandProcessor.CommandInfo;
this._commandName = commandProcessor.CommandInfo.Name;
this._bindableParameters = commandProcessor.CmdletParameterBinderController.BindableParameters;
this._defaultParameterSetFlag = commandProcessor.CommandInfo.CommandMetadata.DefaultParameterSetFlag;
}
else if (base3 != null)
{
this._function = true;
this._commandInfo = base3.CommandInfo;
this._commandName = base3.CommandInfo.Name;
this._bindableParameters = base3.ScriptParameterBinderController.BindableParameters;
this._defaultParameterSetFlag = 0;
}
else if (!flag2)
{
return(false);
}
if (this._commandAst.IsInWorkflow())
{
Type type = Type.GetType("Microsoft.PowerShell.Workflow.AstToWorkflowConverter, Microsoft.PowerShell.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35");
if (type != null)
{
Dictionary <string, Type> dictionary = (Dictionary <string, Type>)type.GetMethod("GetActivityParameters").Invoke(null, new object[] { this._commandAst });
if (dictionary != null)
{
bool flag6 = dictionary.ContainsKey("PSComputerName") && !dictionary.ContainsKey("ComputerName");
List <MergedCompiledCommandParameter> source = new List <MergedCompiledCommandParameter>();
Collection <Attribute> attributes = new Collection <Attribute> {
new ParameterAttribute()
};
foreach (KeyValuePair <string, Type> pair2 in dictionary)
{
if (flag2 || !this._bindableParameters.BindableParameters.ContainsKey(pair2.Key))
{
Type actualActivityParameterType = GetActualActivityParameterType(pair2.Value);
RuntimeDefinedParameter runtimeDefinedParameter = new RuntimeDefinedParameter(pair2.Key, actualActivityParameterType, attributes);
CompiledCommandParameter parameter = new CompiledCommandParameter(runtimeDefinedParameter, false)
{
IsInAllSets = true
};
MergedCompiledCommandParameter parameter3 = new MergedCompiledCommandParameter(parameter, ParameterBinderAssociation.DeclaredFormalParameters);
source.Add(parameter3);
}
}
if (source.Any <MergedCompiledCommandParameter>())
{
MergedCommandParameterMetadata metadata = new MergedCommandParameterMetadata();
if (!flag2)
{
metadata.ReplaceMetadata(this._bindableParameters);
}
foreach (MergedCompiledCommandParameter parameter5 in source)
{
metadata.BindableParameters.Add(parameter5.Parameter.Name, parameter5);
}
this._bindableParameters = metadata;
}
foreach (string str2 in ignoredWorkflowParameters)
{
if (this._bindableParameters.BindableParameters.ContainsKey(str2))
{
this._bindableParameters.BindableParameters.Remove(str2);
}
}
if (this._bindableParameters.BindableParameters.ContainsKey("ComputerName") && flag6)
{
this._bindableParameters.BindableParameters.Remove("ComputerName");
string key = (from aliasPair in this._bindableParameters.AliasedParameters
where string.Equals("ComputerName", aliasPair.Value.Parameter.Name)
select aliasPair.Key).FirstOrDefault <string>();
this._bindableParameters.AliasedParameters.Remove(key);
}
}
}
}
this._unboundParameters.AddRange(this._bindableParameters.BindableParameters.Values);
CommandBaseAst ast4 = null;
PipelineAst parent = this._commandAst.Parent as PipelineAst;
if (parent.PipelineElements.Count > 1)
{
foreach (CommandBaseAst ast6 in parent.PipelineElements)
{
if (ast6.GetHashCode() == this._commandAst.GetHashCode())
{
this._isPipelineInputExpected = ast4 != null;
if (this._isPipelineInputExpected)
{
this._pipelineInputType = typeof(object);
}
break;
}
ast4 = ast6;
}
}
return(true);
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
CheckIsConstant(stringConstantExpressionAst, "Caller to verify ast is constant");
return stringConstantExpressionAst.Value;
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
this._pipelineCommandRuntime.outputResults.Write(stringConstantExpressionAst.Value);
return AstVisitAction.SkipChildren;
}
/// <summary/>
public virtual AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return(AstVisitAction.Continue);
}
internal Ast CommandRule(bool forDynamicKeyword)
{
//G command:
//G command-name command-elements:opt
//G command-invocation-operator command-module:opt command-name-expr command-elements:opt
//G command-invocation-operator: one of
//G '&' '.'
//G command-module:
//G primary-expression
//G command-name:
//G generic-token
//G generic-token-with-subexpr
//G generic-token-with-subexpr: No whitespace is allowed between ) and command-name.
//G generic-token-with-subexpr-start statement-list:opt ) command-name
//G command-name-expr:
//G command-name
//G primary-expression
//G command-elements:
//G command-element
//G command-elements command-element
//G command-element:
//G command-parameter
//G command-argument
//G redirection
//G command-argument:
//G command-name-expr
Token firstToken;
bool dotSource, ampersand;
bool sawDashDash = false;
bool foundVerbatimArgument = false;
RedirectionAst[] redirections = null;
IScriptExtent endExtent;
var elements = new List<CommandElementAst>();
var oldTokenizerMode = _tokenizer.Mode;
try
{
SetTokenizerMode(TokenizerMode.Command);
Token token = NextToken();
firstToken = token;
endExtent = token.Extent;
dotSource = false;
ampersand = false;
CommandArgumentContext context;
if (token.Kind == TokenKind.Dot)
{
dotSource = true;
token = NextToken();
context = CommandArgumentContext.CommandNameAfterInvocationOperator;
}
else if (token.Kind == TokenKind.Ampersand)
{
ampersand = true;
token = NextToken();
context = CommandArgumentContext.CommandNameAfterInvocationOperator;
}
else
{
context = CommandArgumentContext.CommandName;
}
bool scanning = true;
while (scanning)
{
switch (token.Kind)
{
case TokenKind.Pipe:
case TokenKind.RCurly:
case TokenKind.RParen:
case TokenKind.EndOfInput:
case TokenKind.NewLine:
case TokenKind.Semi:
case TokenKind.AndAnd:
case TokenKind.OrOr:
UngetToken(token);
scanning = false;
continue;
case TokenKind.Ampersand:
// ErrorRecovery: just ignore the token.
endExtent = token.Extent;
ReportError(token.Extent, () => ParserStrings.AmpersandNotAllowed);
break;
case TokenKind.MinusMinus:
endExtent = token.Extent;
// Add the first -- as a parameter, which is then ignored when constructing the command processor unless it's a native
// command. All subsequent -- are added as arguments.
elements.Add(sawDashDash
? (CommandElementAst)new StringConstantExpressionAst(token.Extent, token.Text, StringConstantType.BareWord)
: new CommandParameterAst(token.Extent, "-", null, token.Extent));
sawDashDash = true;
break;
case TokenKind.Comma:
endExtent = token.Extent;
ReportError(token.Extent, () => ParserStrings.MissingArgument);
SkipNewlines();
break;
case TokenKind.Parameter:
if ((context & CommandArgumentContext.CommandName) != 0 || sawDashDash)
{
endExtent = token.Extent;
token.TokenFlags |= TokenFlags.CommandName;
var commandName = new StringConstantExpressionAst(token.Extent, token.Text, StringConstantType.BareWord);
elements.Add(commandName);
break;
}
var parameterToken = (ParameterToken)token;
ExpressionAst parameterArgs;
IScriptExtent extent;
// If the next token is a comma, don't grab it as part of the argument. The next time through this
// loop will issue an error.
if (parameterToken.UsedColon && PeekToken().Kind != TokenKind.Comma)
{
parameterArgs = GetCommandArgument(CommandArgumentContext.CommandArgument, NextToken());
if (parameterArgs == null)
{
extent = parameterToken.Extent;
ReportError(After(extent), () => ParserStrings.ParameterRequiresArgument, parameterToken.Text);
}
else
{
extent = ExtentOf(token, parameterArgs);
}
}
else
{
parameterArgs = null;
extent = token.Extent;
}
endExtent = extent;
var paramAst = new CommandParameterAst(extent, parameterToken.ParameterName, parameterArgs, token.Extent);
elements.Add(paramAst);
break;
case TokenKind.Redirection:
case TokenKind.RedirectInStd:
if ((context & CommandArgumentContext.CommandName) == 0)
{
if (redirections == null)
{
redirections = new RedirectionAst[CommandBaseAst.MaxRedirections];
}
RedirectionRule((RedirectionToken)token, redirections, ref endExtent);
}
else
{
// For backwards compatibility, we allow redirection operators as command names.
// V2 did not allow:
// & <<
// but V3 and on will because it falls out rather naturally here.
endExtent = token.Extent;
elements.Add(new StringConstantExpressionAst(token.Extent, token.Text, StringConstantType.BareWord));
}
break;
default:
if (token.Kind == TokenKind.InlineScript && context == CommandArgumentContext.CommandName)
{
scanning = InlineScriptRule(token, elements);
Diagnostics.Assert(elements.Count >= 1, "We should at least have the command name: inlinescript");
endExtent = elements.Last().Extent;
if (!scanning) { continue; }
}
else
{
var ast = GetCommandArgument(context, token);
// If this is the special verbatim argument syntax, look for the next element
StringToken argumentToken = token as StringToken;
if ((argumentToken != null) && String.Equals(argumentToken.Value, VERBATIM_ARGUMENT, StringComparison.OrdinalIgnoreCase))
{
elements.Add(ast);
endExtent = ast.Extent;
var verbatimToken = GetVerbatimCommandArgumentToken();
if (verbatimToken != null)
{
foundVerbatimArgument = true;
scanning = false;
ast = new StringConstantExpressionAst(verbatimToken.Extent, verbatimToken.Value, StringConstantType.BareWord);
elements.Add(ast);
endExtent = ast.Extent;
}
break;
}
endExtent = ast.Extent;
elements.Add(ast);
}
break;
}
if (!foundVerbatimArgument)
{
context = CommandArgumentContext.CommandArgument;
token = NextToken();
}
}
}
finally
{
SetTokenizerMode(oldTokenizerMode);
}
if (elements.Count == 0)
{
Diagnostics.Assert(!forDynamicKeyword, "DynamicKeyword should have command name at least");
if (dotSource || ampersand)
{
IScriptExtent extent = firstToken.Extent;
ReportError(extent, () => ParserStrings.MissingExpression, firstToken.Text);
}
return null;
}
if (forDynamicKeyword)
{
// TODO: report error if any redirections
return new DynamicKeywordStatementAst(ExtentOf(firstToken, endExtent), elements);
}
return new CommandAst(ExtentOf(firstToken, endExtent), elements,
dotSource || ampersand ? firstToken.Kind : TokenKind.Unknown,
redirections != null ? redirections.Where(r => r != null) : null);
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
CheckIsConstant(stringConstantExpressionAst, "Caller to verify ast is constant");
return(stringConstantExpressionAst.Value);
}
private ExpressionAst GetCommandArgument(CommandArgumentContext context, Token token)
{
Diagnostics.Assert(token.Kind != TokenKind.Comma, "A unary comma is an error in command mode, and should have already been reported.");
ExpressionAst exprAst;
List<ExpressionAst> commandArgs = null;
Token commaToken = null;
bool foundVerbatimArgument = false;
while (true)
{
switch (token.Kind)
{
// The following tokens are never allowed as command arguments.
case TokenKind.Pipe:
case TokenKind.RCurly:
case TokenKind.RParen:
case TokenKind.EndOfInput:
case TokenKind.NewLine:
case TokenKind.Semi:
case TokenKind.Redirection:
case TokenKind.RedirectInStd:
case TokenKind.AndAnd:
case TokenKind.OrOr:
case TokenKind.Ampersand:
case TokenKind.MinusMinus:
case TokenKind.Comma:
UngetToken(token);
// If we haven't seen an argument, the caller must issue an error. If we've seen at least one
// argument, then we will issue the error and return back the arguments seen so far.
if (commaToken == null)
{
return null;
}
// ErrorRecovery: stop looking for additional arguments, exclude the trailing comma
ReportIncompleteInput(After(commaToken), () => ParserStrings.MissingExpression, ",");
return new ErrorExpressionAst(ExtentOf(commandArgs.First(), commaToken), commandArgs);
case TokenKind.SplattedVariable:
case TokenKind.Variable:
case TokenKind.Number:
case TokenKind.HereStringExpandable:
case TokenKind.StringExpandable:
case TokenKind.HereStringLiteral:
case TokenKind.StringLiteral:
case TokenKind.LParen:
case TokenKind.DollarParen:
case TokenKind.AtParen:
case TokenKind.AtCurly:
case TokenKind.LCurly:
UngetToken(token);
exprAst = PrimaryExpressionRule(withMemberAccess: true);
Diagnostics.Assert(exprAst != null, "PrimaryExpressionRule should never return null");
break;
case TokenKind.Generic:
if ((context & CommandArgumentContext.CommandName) != 0)
{
token.TokenFlags |= TokenFlags.CommandName;
}
var genericToken = (StringToken)token;
var expandableToken = genericToken as StringExpandableToken;
// A command name w/o invocation operator is not expandable even if the token has expandable parts
// If we have seen an invocation operator, the command name is expandable.
if (expandableToken != null && context != CommandArgumentContext.CommandName)
{
var nestedExpressions = ParseNestedExpressions(expandableToken);
exprAst = new ExpandableStringExpressionAst(expandableToken, expandableToken.Value,
expandableToken.FormatString, nestedExpressions);
}
else
{
exprAst = new StringConstantExpressionAst(genericToken.Extent, genericToken.Value, StringConstantType.BareWord);
// If this is a verbatim argument, then don't continue peeking
if (String.Equals(genericToken.Value, VERBATIM_ARGUMENT, StringComparison.OrdinalIgnoreCase))
{
foundVerbatimArgument = true;
}
}
break;
default:
exprAst = new StringConstantExpressionAst(token.Extent, token.Text, StringConstantType.BareWord);
// A command/argument that matches a keyword isn't really a keyword, so don't color it that way
token.TokenFlags &= ~TokenFlags.Keyword;
switch (context)
{
case CommandArgumentContext.CommandName:
case CommandArgumentContext.CommandNameAfterInvocationOperator:
token.TokenFlags |= TokenFlags.CommandName;
break;
case CommandArgumentContext.FileName:
case CommandArgumentContext.CommandArgument:
case CommandArgumentContext.SwitchCondition:
token.SetIsCommandArgument();
break;
}
break;
}
if (context != CommandArgumentContext.CommandArgument)
{
break;
}
if (foundVerbatimArgument)
{
break;
}
token = PeekToken();
if (token.Kind != TokenKind.Comma)
{
break;
}
commaToken = token;
if (commandArgs == null)
{
commandArgs = new List<ExpressionAst>();
}
commandArgs.Add(exprAst);
SkipToken();
SkipNewlines();
token = NextToken();
}
Diagnostics.Assert(commandArgs != null || exprAst != null, "How did that happen?");
if (commandArgs != null)
{
commandArgs.Add(exprAst);
return new ArrayLiteralAst(ExtentOf(commandArgs[0], commandArgs[commandArgs.Count - 1]), commandArgs);
}
return exprAst;
}
private StringConstantExpressionAst ResolveUsingAssembly(StringConstantExpressionAst name)
{
var assemblyName = name.Value;
Uri uri;
// assemblyName can be invalid, i.e. during typing.
// We only use uri to check that we don't allow UNC paths.
if (Uri.TryCreate(assemblyName, UriKind.Absolute, out uri))
{
if (uri.IsUnc)
{
ReportError(name.Extent, () => ParserStrings.CannotLoadAssemblyFromUncPath, assemblyName);
}
// don't allow things like 'using assembly http://microsoft.com'
if (uri.Scheme != "file")
{
ReportError(name.Extent, () => ParserStrings.CannotLoadAssemblyWithUriSchema, uri.Scheme);
}
}
else
{
string assemblyFileName = assemblyName;
try
{
var scriptFileName = name.Extent.File;
if (!Path.IsPathRooted(assemblyFileName))
{
string workingDirectory;
if (string.IsNullOrEmpty(scriptFileName))
{
// We are in REPL, or Invoke-Expression, or ScriptBlock.Create, etc.
// It's legal to use '.\foo.dll', and we should do lookup in $pwd.
// We resolving it in parse time to avoid difference in script behavior,
// when script execution is delayed from parsing, i.e.
// $script = [scriptblock]::Create('using assembly .\foo.dll; [Foo].foo()')
// # using assembly behavior should be the same in these two cases:
// cd A; $script.Invoke()
// cd B; $script.Invoke()
if (Runspaces.Runspace.DefaultRunspace != null)
{
workingDirectory = Runspaces.Runspace.DefaultRunspace.ExecutionContext.EngineIntrinsics.SessionState.Path.CurrentLocation.Path;
}
else
{
// In this case, our best guess is process working directory.
workingDirectory = Directory.GetCurrentDirectory();
}
}
else
{
workingDirectory = Path.GetDirectoryName(scriptFileName);
}
assemblyFileName = workingDirectory + @"\" + assemblyFileName;
}
#if !CORECLR
if (!File.Exists(assemblyFileName))
{
GlobalAssemblyCache.ResolvePartialName(assemblyName, out assemblyFileName);
}
#endif
}
catch
{
}
if (assemblyFileName == null || !File.Exists(assemblyFileName))
{
ReportError(name.Extent, () => ParserStrings.ErrorLoadingAssembly, assemblyName);
}
else
{
return new StringConstantExpressionAst(name.Extent, assemblyFileName, name.StringConstantType);
}
}
return name;
}
public override AstVisitAction VisitStringConstantExpression(StringConstantExpressionAst ast)
{
return(Check(ast));
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
_visitCount++;
return true;
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
_visitCount++;
return(true);
}
private ExpressionAst ExpandableStringRule(StringExpandableToken strToken)
{
ExpressionAst stringConstantExpressionAst;
if (strToken.NestedTokens == null)
{
stringConstantExpressionAst = new StringConstantExpressionAst(strToken);
}
else
{
List<ExpressionAst> expressionAsts = this.ParseNestedExpressions(strToken);
stringConstantExpressionAst = new ExpandableStringExpressionAst(strToken, strToken.Value, strToken.FormatString, expressionAsts);
}
return stringConstantExpressionAst;
}
public object VisitStringConstantExpression(StringConstantExpressionAst stringConstantExpressionAst)
{
return(true);
}
internal override IEnumerable <PSTypeName> GetInferredType(CompletionContext context)
{
StringConstantExpressionAst member = this.Member as StringConstantExpressionAst;
if (member != null)
{
PSTypeName[] iteratorVariable1;
if (this.Static)
{
TypeExpressionAst expression = this.Expression as TypeExpressionAst;
if (expression == null)
{
goto Label_064A;
}
Type type = expression.TypeName.GetReflectionType();
if (type == null)
{
goto Label_064A;
}
iteratorVariable1 = new PSTypeName[] { new PSTypeName(type) };
}
else
{
iteratorVariable1 = this.Expression.GetInferredType(context).ToArray <PSTypeName>();
if (iteratorVariable1.Length == 0)
{
goto Label_064A;
}
}
List <string> iteratorVariable2 = new List <string> {
member.Value
};
foreach (PSTypeName iteratorVariable3 in iteratorVariable1)
{
IEnumerable <object> iteratorVariable4 = CompletionCompleters.GetMembersByInferredType(iteratorVariable3, this.Static, context);
for (int i = 0; i < iteratorVariable2.Count; i++)
{
string iteratorVariable6 = iteratorVariable2[i];
foreach (object iteratorVariable7 in iteratorVariable4)
{
PropertyInfo iteratorVariable8 = iteratorVariable7 as PropertyInfo;
if (iteratorVariable8 != null)
{
if (iteratorVariable8.Name.Equals(iteratorVariable6, StringComparison.OrdinalIgnoreCase) && !(this is InvokeMemberExpressionAst))
{
yield return(new PSTypeName(iteratorVariable8.PropertyType));
break;
}
}
else
{
FieldInfo iteratorVariable9 = iteratorVariable7 as FieldInfo;
if (iteratorVariable9 != null)
{
if (iteratorVariable9.Name.Equals(iteratorVariable6, StringComparison.OrdinalIgnoreCase) && !(this is InvokeMemberExpressionAst))
{
yield return(new PSTypeName(iteratorVariable9.FieldType));
break;
}
continue;
}
DotNetAdapter.MethodCacheEntry iteratorVariable10 = iteratorVariable7 as DotNetAdapter.MethodCacheEntry;
if (iteratorVariable10 != null)
{
if (iteratorVariable10[0].method.Name.Equals(iteratorVariable6, StringComparison.OrdinalIgnoreCase))
{
if (!(this is InvokeMemberExpressionAst))
{
yield return(new PSTypeName(typeof(PSMethod)));
break;
}
foreach (MethodInformation iteratorVariable11 in iteratorVariable10.methodInformationStructures)
{
MethodInfo method = iteratorVariable11.method as MethodInfo;
if ((method != null) && !method.ReturnType.ContainsGenericParameters)
{
yield return(new PSTypeName(method.ReturnType));
}
}
break;
}
continue;
}
PSMemberInfo iteratorVariable13 = iteratorVariable7 as PSMemberInfo;
if ((iteratorVariable13 != null) && iteratorVariable13.Name.Equals(iteratorVariable6, StringComparison.OrdinalIgnoreCase))
{
PSNoteProperty iteratorVariable14 = iteratorVariable7 as PSNoteProperty;
if (iteratorVariable14 != null)
{
yield return(new PSTypeName(iteratorVariable14.Value.GetType()));
break;
}
PSAliasProperty iteratorVariable15 = iteratorVariable7 as PSAliasProperty;
if (iteratorVariable15 != null)
{
iteratorVariable2.Add(iteratorVariable15.ReferencedMemberName);
}
else
{
PSCodeProperty iteratorVariable16 = iteratorVariable7 as PSCodeProperty;
if (iteratorVariable16 != null)
{
if (iteratorVariable16.GetterCodeReference != null)
{
yield return(new PSTypeName(iteratorVariable16.GetterCodeReference.ReturnType));
break;
}
}
else
{
ScriptBlock getterScript = null;
PSScriptProperty iteratorVariable18 = iteratorVariable7 as PSScriptProperty;
if (iteratorVariable18 != null)
{
getterScript = iteratorVariable18.GetterScript;
}
PSScriptMethod iteratorVariable19 = iteratorVariable7 as PSScriptMethod;
if (iteratorVariable19 != null)
{
getterScript = iteratorVariable19.Script;
}
if (getterScript != null)
{
foreach (PSTypeName iteratorVariable20 in getterScript.OutputType)
{
yield return(iteratorVariable20);
}
}
}
}
break;
}
}
}
}
}
}
Label_064A:
yield break;
}
public void Setup()
{
this._commandExpressionAst = ParseStatement("'PS> '")
.PipelineElements[0];
this._stringConstantExpressionAst = (StringConstantExpressionAst)this._commandExpressionAst.Expression;
}
/// <summary>
/// Parse a dynamic keyword statement which will be either of the form
/// keyword [parameters] [name] { a=1; b=2; } # constructor with properties
/// or
/// keyword [parameters] [name] { ... } # constructor with a simple body.
/// or keywordcommand parameters
/// This custom keyword does not introduce a new AST node type. Instead it generates a
/// CommandAst that calls a PowerShell command to implement the keyword's logic.
/// This command has one of two signatures:
/// keywordImplCommand
/// </summary>
/// <param name="functionName">The name of the function to invoke</param>
/// <param name="keywordData">The data for this keyword definition</param>
/// <returns></returns>
private StatementAst DynamicKeywordStatementRule(Token functionName, DynamicKeyword keywordData)
{
//////////////////////////////////////////////////////////////////////////////////
// If a custom action was provided. then invoke it
//////////////////////////////////////////////////////////////////////////////////
if (keywordData.PreParse != null)
{
try
{
ParseError[] errors = keywordData.PreParse(keywordData);
if (errors != null && errors.Length > 0)
{
foreach (var e in errors)
{
ReportError(e);
}
}
}
catch (Exception e)
{
ReportError(functionName.Extent, () => ParserStrings.DynamicKeywordPreParseException, keywordData.ResourceName, e.ToString());
return null;
}
}
if (keywordData.IsReservedKeyword)
{
// ErrorRecovery: eat the token
ReportError(functionName.Extent, () => ParserStrings.UnsupportedReservedKeyword, keywordData.Keyword);
return null;
}
if (keywordData.HasReservedProperties)
{
// ErrorRecovery: eat the token
ReportError(functionName.Extent, () => ParserStrings.UnsupportedReservedProperty, "'Require', 'Trigger', 'Notify', 'Before', 'After' and 'Subscribe'");
return null;
}
string elementName = string.Empty;
DynamicKeywordStatementAst dynamicKeywordAst;
if (keywordData.BodyMode == DynamicKeywordBodyMode.Command)
{
UngetToken(functionName);
dynamicKeywordAst = (DynamicKeywordStatementAst)CommandRule(forDynamicKeyword: true);
dynamicKeywordAst.Keyword = keywordData;
dynamicKeywordAst.FunctionName = functionName;
}
else
{
SkipNewlines();
// The expression that returns the resource name or names.
ExpressionAst instanceName = null;
Token nameToken = NextToken();
if (nameToken.Kind == TokenKind.EndOfInput)
{
UngetToken(nameToken);
if (keywordData.NameMode == DynamicKeywordNameMode.NameRequired || keywordData.NameMode == DynamicKeywordNameMode.SimpleNameRequired)
{
ReportIncompleteInput(After(functionName), () => ParserStrings.RequiredNameOrExpressionMissing);
}
else
{
// Name not required so report missing brace
ReportIncompleteInput(After(functionName.Extent), () => ParserStrings.MissingBraceInObjectDefinition);
}
return null;
}
// If it's an lcurly, then no name was provided, and we skip to the body processing
Token lCurly = null;
if (nameToken.Kind == TokenKind.LCurly)
{
lCurly = nameToken;
if (keywordData.NameMode == DynamicKeywordNameMode.NameRequired || keywordData.NameMode == DynamicKeywordNameMode.SimpleNameRequired)
{
ReportError(After(functionName), () => ParserStrings.RequiredNameOrExpressionMissing);
UngetToken(nameToken);
return null;
}
}
else if (nameToken.Kind == TokenKind.Identifier || nameToken.Kind == TokenKind.DynamicKeyword)
{
if (keywordData.NameMode == DynamicKeywordNameMode.NoName)
{
ReportError(After(functionName), () => ParserStrings.UnexpectedNameForType, functionName.Text, nameToken.Text);
UngetToken(nameToken);
return null;
}
// If it's an identifier then this is the name for the data object
elementName = nameToken.Text;
// If only a simple name is allowed, then the string must be non-null.
if ((keywordData.NameMode == DynamicKeywordNameMode.SimpleNameRequired || keywordData.NameMode == DynamicKeywordNameMode.SimpleOptionalName) && string.IsNullOrEmpty(elementName))
{
ReportIncompleteInput(After(functionName), () => ParserStrings.RequiredNameOrExpressionMissing);
UngetToken(nameToken);
return null;
}
}
else
{
// see if an expression was provided instead of a bare word...
UngetToken(nameToken);
instanceName = GetSingleCommandArgument(CommandArgumentContext.CommandName);
if (instanceName == null)
{
if (keywordData.NameMode == DynamicKeywordNameMode.SimpleNameRequired || keywordData.NameMode == DynamicKeywordNameMode.SimpleOptionalName)
{
ReportError(After(functionName), () => ParserStrings.RequiredNameOrExpressionMissing);
}
else
{
// It wasn't an '{' and it wasn't a name expression so it's a unexpected token.
ReportError(After(functionName), () => ParserStrings.UnexpectedToken, nameToken.Text);
}
return null;
}
// Ok, we got a name expression, but we're expecting no name, so it's and error.
if (keywordData.NameMode == DynamicKeywordNameMode.NoName)
{
ReportError(After(functionName), () => ParserStrings.UnexpectedNameForType, functionName.Text, instanceName.ToString());
return null;
}
// We were expecting a simple name so report an error
if (keywordData.NameMode == DynamicKeywordNameMode.SimpleNameRequired || keywordData.NameMode == DynamicKeywordNameMode.SimpleOptionalName)
{
// If no match, then this is an incomplete token BUGBUG fix message
ReportError(nameToken.Extent, () => ParserStrings.UnexpectedToken, nameToken.Text);
return null;
}
}
// If we didn't get a resource expression AST, then we need to build one out of the
// name that was specified. It may be the case that we don't have
// a resource name in which case it will be the empty string. Even in the cases were
// we aren't expecting a name, we still do this so that the signature of the implementing function remains
// the same.
ExpressionAst originalInstanceName = instanceName;
if (instanceName == null)
{
instanceName = new StringConstantExpressionAst(nameToken.Extent, elementName, StringConstantType.BareWord);
}
SkipNewlines();
//
// Now look for the body of the data statement.
//
if (lCurly == null)
{
lCurly = NextToken();
if (lCurly.Kind == TokenKind.EndOfInput)
{
UngetToken(lCurly);
ReportIncompleteInput(After(functionName.Extent), () => ParserStrings.MissingBraceInObjectDefinition);
// Preserve the name expression for tab completion
return originalInstanceName == null
? null
: new ErrorStatementAst(ExtentOf(functionName, originalInstanceName),
GetNestedErrorAsts(originalInstanceName));
}
if (lCurly.Kind != TokenKind.LCurly)
{
// We need to generate a reasonable error message for this case:
//
// Configuration C {
// node $AllNode.NodeName{ # There is no space before curly, and we are converting scriptblock to and argument to call 'NodeName'
// ...
// }
// } # we don't want to simple report an unexpected token here, it would be super-confusing.
InvokeMemberExpressionAst instanceInvokeMemberExpressionAst = instanceName as InvokeMemberExpressionAst;
if (instanceInvokeMemberExpressionAst != null &&
instanceInvokeMemberExpressionAst.Arguments.Count == 1 &&
instanceInvokeMemberExpressionAst.Arguments[0] is ScriptBlockExpressionAst &&
// the last condition checks that there is no space between "method" name and '{'
instanceInvokeMemberExpressionAst.Member.Extent.EndOffset == instanceInvokeMemberExpressionAst.Arguments[0].Extent.StartOffset)
{
ReportError(LastCharacterOf(instanceInvokeMemberExpressionAst.Member.Extent), () => ParserStrings.UnexpectedTokenInDynamicKeyword, functionName.Text);
}
else
{
ReportError(lCurly.Extent, () => ParserStrings.UnexpectedToken, lCurly.Text);
}
if (lCurly.Kind == TokenKind.Dot && originalInstanceName != null && lCurly.Extent.StartOffset == originalInstanceName.Extent.EndOffset)
{
// Generate more useful ast for tab-completing extension methods on special DSC collection variables
// e.g. configuration foo { node $AllNodes.<tab>
IScriptExtent errorExtent = ExtentOf(originalInstanceName, lCurly);
var errorExpr = new ErrorExpressionAst(errorExtent);
var memberExpr = new MemberExpressionAst(originalInstanceName.Extent, originalInstanceName, errorExpr, @static: false);
return new ErrorStatementAst(errorExtent, new[] { memberExpr });
}
UngetToken(lCurly);
// Preserve the name expression for tab completion
return originalInstanceName == null
? null
: new ErrorStatementAst(ExtentOf(functionName, originalInstanceName),
GetNestedErrorAsts(originalInstanceName));
}
}
//
// The keyword data is used to see
// if a scriptblock or a hashtable is expected.
//
ExpressionAst body = null;
if (keywordData.BodyMode == DynamicKeywordBodyMode.ScriptBlock)
{
var oldInConfiguraiton = _inConfiguration;
try
{
_inConfiguration = false;
body = ScriptBlockExpressionRule(lCurly);
}
finally
{
_inConfiguration = oldInConfiguraiton;
}
}
else if (keywordData.BodyMode == DynamicKeywordBodyMode.Hashtable)
{
// Resource property value could be set to nested DSC resources except Script resource
bool isScriptResource = String.Compare(functionName.Text, @"Script", StringComparison.OrdinalIgnoreCase) == 0;
try
{
if (isScriptResource)
DynamicKeyword.Push();
body = HashExpressionRule(lCurly, true /* parsingSchemaElement */);
}
finally
{
if (isScriptResource)
DynamicKeyword.Pop();
}
}
// commandast
// elements: instancename/dynamickeyword/hashtable or scripblockexpress
if (body == null)
{
// Failed to read the statement body
ReportIncompleteInput(After(lCurly), () => ParserStrings.MissingStatementAfterKeyword, keywordData.Keyword);
// Preserve the name expression for tab completion
return originalInstanceName == null
? null
: new ErrorStatementAst(ExtentOf(functionName, originalInstanceName),
GetNestedErrorAsts(originalInstanceName));
}
//////////////////////////////////////////////////////////////////////////
// The statement is now fully parsed
//////////////////////////////////////////////////////////////////////////
//
// Create DynamicKeywordStatementAst
//
Collection<CommandElementAst> commandElements = new Collection<CommandElementAst>
{
new StringConstantExpressionAst(functionName.Extent, functionName.Text, StringConstantType.BareWord),
(ExpressionAst)instanceName.Copy(),
(ExpressionAst)body.Copy()
};
Token nextToken = NextToken();
IScriptExtent dynamicKeywordExtent = ExtentOf(functionName, Before(nextToken));
UngetToken(nextToken);
dynamicKeywordAst = new DynamicKeywordStatementAst(dynamicKeywordExtent, commandElements)
{
Keyword = keywordData,
LCurly = lCurly,
FunctionName = functionName,
InstanceName = instanceName,
OriginalInstanceName = originalInstanceName,
BodyExpression = body,
ElementName = elementName,
};
}
//////////////////////////////////////////////////////////////////////////////////
// If a custom action was provided. then invoke it
//////////////////////////////////////////////////////////////////////////////////
if (keywordData.PostParse != null)
{
try
{
ParseError[] errors = keywordData.PostParse(dynamicKeywordAst);
if (errors != null && errors.Length > 0)
{
foreach (var e in errors)
{
ReportError(e);
}
}
}
catch (Exception e)
{
ReportError(functionName.Extent, () => ParserStrings.DynamicKeywordPostParseException, keywordData.Keyword, e.ToString());
return null;
}
}
return dynamicKeywordAst;
}
