internal ScriptBlockParameterBinder(ReadOnlyCollection<ParameterAst> scriptParameters, ExecutionContext context,
ExecutionVisitor executionVisitor)
{
_scriptParameters = scriptParameters;
_executionContext = context;
_executionVisitor = executionVisitor;
}
public Collection<PSObject> InvokeScript(string script, bool useNewScope, PipelineResultTypes writeToPipeline, IList input, params object[] args)
{
ScriptBlock scriptBlock = NewScriptBlock(script);
var executionVisitor = new ExecutionVisitor(executionContext, commandRuntime);
scriptBlock.Ast.Visit(executionVisitor);
return new Collection<PSObject>();
}
private void CreateOwnScope()
{
_originalContext = ExecutionContext;
var executionSessionState = CommandInfo.Module != null ? CommandInfo.Module.SessionState
: ExecutionContext.SessionState;
_scopedContext = ExecutionContext.Clone(executionSessionState, _scriptBlockInfo.ScopeUsage);
_scopedExecutionVisitor = new ExecutionVisitor(_scopedContext, CommandRuntime, false);
}
protected override void ProcessRecord()
{
this.ExecutionContext.SetVariable("_", this.InputObject);
var executionVisitor = new ExecutionVisitor(
this.ExecutionContext,
(PipelineCommandRuntime)CommandRuntime
);
this.Process.Ast.Visit(executionVisitor);
}
internal static SettableExpression Create(ExpressionAst valueExpression, ExecutionVisitor currentExecution)
{
if (valueExpression is VariableExpressionAst)
{
return(new SettableVariableExpression((VariableExpressionAst)valueExpression, currentExecution));
}
else if (valueExpression is MemberExpressionAst)
{
return(new SettableMemberExpression((MemberExpressionAst)valueExpression, currentExecution));
}
else if (valueExpression is IndexExpressionAst)
{
return(new SettableIndexExpression((IndexExpressionAst)valueExpression, currentExecution));
}
var msg = String.Format("The expression is not a modifiable value, but of type '{0}'. Please report this!",
valueExpression.GetType().FullName);
throw new InvalidOperationException(msg);
}
public Collection<PSObject> InvokeScript(string script, bool useNewScope, PipelineResultTypes writeToPipeline, IList input, params object[] args)
{
var context = useNewScope ? executionContext.Clone(ScopeUsages.NewScriptScope)
: executionContext;
//Let's see on the long run if there is an easier solution for this #ExecutionContextChange
//we need to change the global execution context to change the scope we are currently operating in
executionContext.CurrentRunspace.ExecutionContext = context;
try
{
ScriptBlock scriptBlock = NewScriptBlock(script);
var executionVisitor = new ExecutionVisitor(context, commandRuntime);
// sburnicki - handle ExitException
scriptBlock.Ast.Visit(executionVisitor);
}
finally //make sure we set back the old execution context, no matter what happened
{
executionContext.CurrentRunspace.ExecutionContext = executionContext;
}
return new Collection<PSObject>();
}
internal static SettableExpression Create(ExpressionAst valueExpression, ExecutionVisitor currentExecution)
{
if (valueExpression is VariableExpressionAst)
{
return new SettableVariableExpression((VariableExpressionAst)valueExpression, currentExecution);
}
else if (valueExpression is InvokeMemberExpressionAst)
{
return new SettableInvokeMemberExpression((InvokeMemberExpressionAst)valueExpression, currentExecution);
}
else if (valueExpression is MemberExpressionAst)
{
return new SettableMemberExpression((MemberExpressionAst)valueExpression, currentExecution);
}
else if (valueExpression is IndexExpressionAst)
{
return new SettableIndexExpression((IndexExpressionAst)valueExpression, currentExecution);
}
var msg = String.Format("The expression is not a modifiable value, but of type '{0}'. Please report this!",
valueExpression.GetType().FullName);
throw new InvalidOperationException(msg);
}
internal SettableExpression(ExecutionVisitor currentExecution)
{
CurrentExecution = currentExecution;
}
internal SettableVariableExpression(VariableExpressionAst expressionAst, ExecutionVisitor currentExecution)
: base(currentExecution)
{
_expressionAst = expressionAst;
}
private void FilterByScript()
{
ExecutionContext.SetVariable("_", InputObject);
var executionVisitor = new ExecutionVisitor(ExecutionContext, (PipelineCommandRuntime)CommandRuntime);
object result = executionVisitor.EvaluateAst(FilterScript.Ast, true);
if (IsTrue(result))
{
WriteObject(InputObject);
}
}
public RedirectionVisitor(ExecutionVisitor visitor, IEnumerable <RedirectionAst> redirections)
{
_visitor = visitor;
_redirections = redirections.ToList();
}
internal SettableIndexExpression(IndexExpressionAst expressionAst, ExecutionVisitor currentExecution)
: base (currentExecution)
{
_expressionAst = expressionAst;
}
public FileRedirectionVisitor(ExecutionVisitor visitor, PipelineCommandRuntime runtime)
{
_visitor = visitor;
_runtime = runtime;
}
internal SettableInvokeMemberExpression(InvokeMemberExpressionAst expressionAst, ExecutionVisitor currentExecution)
: base(expressionAst, currentExecution)
{
_expressionAst = expressionAst;
}
public RedirectionVisitor(ExecutionVisitor visitor, IEnumerable<RedirectionAst> redirections)
{
_visitor = visitor;
_redirections = redirections.ToList();
}
private void CreateOwnScope()
{
_originalContext = ExecutionContext;
_scopedContext = ExecutionContext.Clone(_scriptBlockInfo.ScopeUsage);
_scopedExecutionVisitor = new ExecutionVisitor(_scopedContext, CommandRuntime, false);
}
internal SettableIndexExpression(IndexExpressionAst expressionAst, ExecutionVisitor currentExecution)
: base(currentExecution)
{
_expressionAst = expressionAst;
}
internal SettableVariableExpression(VariableExpressionAst expressionAst, ExecutionVisitor currentExecution)
: base(currentExecution)
{
_expressionAst = expressionAst;
}
internal SettableExpression(ExecutionVisitor currentExecution)
{
CurrentExecution = currentExecution;
}
internal SettableMemberExpression(MemberExpressionAst expressionAst, ExecutionVisitor currentExecution)
: base(currentExecution)
{
_expressionAst = expressionAst;
}
public FileRedirectionVisitor(ExecutionVisitor visitor, PipelineCommandRuntime runtime)
{
_visitor = visitor;
_runtime = runtime;
}