public VariableDereferenceNode(
Token var,
List <TypeLiteral> typeConstraint,
bool inExpandableString)
{
this.NodeToken = var;
this._varName = var.TokenText;
this._variablePath = new ScopedItemLookupPath(this._varName);
if (this.NodeToken.TokenText.Equals("true", StringComparison.OrdinalIgnoreCase))
{
this._useConstantValue = true;
this._constantValue = (object)true;
this.ValidAttributeArgument = true;
}
else if (this.NodeToken.TokenText.Equals("false", StringComparison.OrdinalIgnoreCase))
{
this._useConstantValue = true;
this._constantValue = (object)false;
this.ValidAttributeArgument = true;
}
else if (this.NodeToken.TokenText.Equals("null", StringComparison.OrdinalIgnoreCase))
{
this._useConstantValue = true;
this._constantValue = (object)null;
this.ValidAttributeArgument = true;
}
this._inExpandableString = inExpandableString;
this._typeConstraint = typeConstraint;
}
internal VariableDereferenceNode(string varName, int variableSlot)
{
this._varName = varName;
this._variablePath = new ScopedItemLookupPath(varName);
this._activationRecordSlot = variableSlot;
this.IsInternalCode = true;
}
internal void BindParameter(ScopedItemLookupPath variable, object value)
{
if (value == AutomationNull.Value)
{
value = (object)null;
}
this.Context.EngineSessionState.SetVariable(variable, value, true, CommandOrigin.Internal);
}
internal ScopedItemSearcher(SessionStateInternal sessionState, ScopedItemLookupPath lookupPath)
{
using (ScopedItemSearcher <T> .tracer.TraceConstructor((object)this))
{
if (sessionState == null)
{
throw ScopedItemSearcher <T> .tracer.NewArgumentNullException(nameof (sessionState));
}
if (lookupPath == null)
{
throw ScopedItemSearcher <T> .tracer.NewArgumentNullException(nameof (lookupPath));
}
this.sessionState = sessionState;
this.lookupPath = lookupPath;
this.InitializeScopeEnumerator();
}
}
private void PrivateSetValue(object value, ExecutionContext context)
{
SessionStateInternal engineSessionState = context.EngineSessionState;
CommandOrigin scopeOrigin = engineSessionState.currentScope.ScopeOrigin;
if (!this._variablePath.IsScopedItem)
{
engineSessionState.SetVariable(this._variablePath, value, true, scopeOrigin);
}
else
{
PSVariable variable1 = engineSessionState.CurrentActivationRecord.GetVariable(this._activationRecordSlot, scopeOrigin);
if (variable1 != null)
{
this.UpdateVariable(variable1, value);
}
else
{
ScopedItemLookupPath variablePath = !this._variablePath.IsUnqualified ? this._variablePath : new ScopedItemLookupPath(this._variablePath, true);
SessionStateScope scope;
PSVariable variable2 = engineSessionState.GetVariableItem(variablePath, out scope, scopeOrigin);
if (variable2 == null)
{
if (string.IsNullOrEmpty(variablePath.LookupPath.NamespaceSpecificString))
{
throw InterpreterError.NewInterpreterException((object)this._varName, typeof(RuntimeException), this.NodeToken, "InvalidVariableReference");
}
variable2 = new PSVariable(variablePath.LookupPath.NamespaceSpecificString, (object)null, ScopedItemOptions.None, new Collection <Attribute>());
engineSessionState.SetVariable(variablePath, (object)variable2, false, scopeOrigin);
if (variablePath.IsLocal)
{
scope = context.EngineSessionState.CurrentScope;
}
}
engineSessionState.CurrentActivationRecord.SetVariable(variable2, scope, this._activationRecordSlot);
this.UpdateVariable(variable2, value);
}
}
}
public foreachStatementNode(
Token nodeToken,
string label,
Token variable,
ParseTreeNode expression,
ParseTreeNode body)
{
this.NodeToken = nodeToken;
this._variable = variable;
this._label = label == null ? "" : label;
if (variable != null)
{
this._loopVariablePath = new ScopedItemLookupPath(variable.TokenText);
}
this._expression = expression;
this._rangeExpression = expression as ExpressionNode;
if (this._rangeExpression != null && !this._rangeExpression.IsRangeExpression())
{
this._rangeExpression = (ExpressionNode)null;
}
this._body = body;
}
protected abstract bool GetScopeItem(
SessionStateScope scope,
ScopedItemLookupPath name,
out T newCurrentItem);
