public ScriptBlockAst(IScriptExtent extent, ParamBlockAst paramBlock, NamedBlockAst beginBlock, NamedBlockAst processBlock, NamedBlockAst endBlock, NamedBlockAst dynamicParamBlock) : base(extent)
{
if (paramBlock != null)
{
this.ParamBlock = paramBlock;
base.SetParent(paramBlock);
}
if (beginBlock != null)
{
this.BeginBlock = beginBlock;
base.SetParent(beginBlock);
}
if (processBlock != null)
{
this.ProcessBlock = processBlock;
base.SetParent(processBlock);
}
if (endBlock != null)
{
this.EndBlock = endBlock;
base.SetParent(endBlock);
}
if (dynamicParamBlock != null)
{
this.DynamicParamBlock = dynamicParamBlock;
base.SetParent(dynamicParamBlock);
}
}
public ScriptBlockAst(IScriptExtent extent, ParamBlockAst paramBlock, NamedBlockAst beginBlock, NamedBlockAst processBlock, NamedBlockAst endBlock, NamedBlockAst dynamicParamBlock) : base(extent)
{
if (paramBlock != null)
{
this.ParamBlock = paramBlock;
base.SetParent(paramBlock);
}
if (beginBlock != null)
{
this.BeginBlock = beginBlock;
base.SetParent(beginBlock);
}
if (processBlock != null)
{
this.ProcessBlock = processBlock;
base.SetParent(processBlock);
}
if (endBlock != null)
{
this.EndBlock = endBlock;
base.SetParent(endBlock);
}
if (dynamicParamBlock != null)
{
this.DynamicParamBlock = dynamicParamBlock;
base.SetParent(dynamicParamBlock);
}
}
public ScriptBlockAst(IScriptExtent extent, ParamBlockAst paramBlock, NamedBlockAst beginBlock, NamedBlockAst processBlock, NamedBlockAst endBlock, NamedBlockAst dynamicParamBlock)
: base(extent)
{
this.BeginBlock = beginBlock;
this.DynamicParamBlock = dynamicParamBlock;
this.EndBlock = endBlock;
this.ParamBlock = paramBlock;
this.ProcessBlock = processBlock;
}
public ScriptBlockAst(IScriptExtent extent, ParamBlockAst paramBlock, NamedBlockAst beginBlock, NamedBlockAst processBlock, NamedBlockAst endBlock, NamedBlockAst dynamicParamBlock)
: base(extent)
{
this.BeginBlock = beginBlock;
this.DynamicParamBlock = dynamicParamBlock;
this.EndBlock = endBlock;
this.ParamBlock = paramBlock;
this.ProcessBlock = processBlock;
}
public System.Object VisitNamedBlock(System.Management.Automation.Language.NamedBlockAst namedBlockAst)
{
IScriptExtent mappedExtent = MapExtent(namedBlockAst.Extent);
LinkedList <StatementAst> mappedStatements = new LinkedList <StatementAst>();
foreach (StatementAst s in namedBlockAst.Statements)
{
mappedStatements.AddLast(_VisitStatement(s));
}
LinkedList <TrapStatementAst> mappedTraps = new LinkedList <TrapStatementAst>();
if (namedBlockAst.Traps != null)
{
foreach (TrapStatementAst ts in namedBlockAst.Traps)
{
mappedTraps.AddLast((TrapStatementAst)VisitTrap(ts));
}
}
// this doesn't really map the statement block
StatementBlockAst mappedStatementBlock = new StatementBlockAst(mappedExtent, mappedStatements, mappedTraps);
return(new NamedBlockAst(mappedExtent, namedBlockAst.BlockKind, mappedStatementBlock, namedBlockAst.Unnamed));
}
/// <summary/>
public virtual AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return(AstVisitAction.Continue);
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return(false);
}
public override AstVisitAction VisitNamedBlock(NamedBlockAst ast)
{
return(Check(ast));
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return false;
}
/// <summary/> public virtual AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst) => DefaultVisit(namedBlockAst);
public virtual AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return AstVisitAction.Continue;
}
public override AstVisitAction VisitNamedBlock(NamedBlockAst ast)
{
return this.Check(ast);
}
/// <summary/>
public virtual object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return _decorated.VisitNamedBlock(namedBlockAst);
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst) { throw new UnexpectedElementException(); }
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return(AstVisitAction.Continue);
}
private ScriptBlockAst NamedBlockListRule(Token lCurly, List<UsingStatementAst> usingStatements, ParamBlockAst paramBlockAst)
{
//G named-block-list:
//G named-block
//G named-block-list named-block
//G named-block:
//G statement-terminators:opt block-name statement-block
//G block-name: one of
//G 'dynamicparam' 'begin' 'process' 'end'
NamedBlockAst dynamicParamBlock = null;
NamedBlockAst beginBlock = null;
NamedBlockAst processBlock = null;
NamedBlockAst endBlock = null;
IScriptExtent startExtent = lCurly != null
? lCurly.Extent
: (paramBlockAst != null) ? paramBlockAst.Extent : null;
IScriptExtent endExtent = null;
IScriptExtent extent;
while (true)
{
Token blockNameToken = NextToken();
switch (blockNameToken.Kind)
{
default:
UngetToken(blockNameToken);
goto finished_named_block_list;
case TokenKind.Dynamicparam:
case TokenKind.Begin:
case TokenKind.Process:
case TokenKind.End:
break;
}
if (startExtent == null)
{
startExtent = blockNameToken.Extent;
}
endExtent = blockNameToken.Extent;
StatementBlockAst statementBlock = StatementBlockRule();
if (statementBlock == null)
{
// ErrorRecovery: Eat the block name and keep going, there might be a valid block next.
ReportIncompleteInput(After(blockNameToken.Extent),
() => ParserStrings.MissingNamedStatementBlock, blockNameToken.Kind.Text());
statementBlock = new StatementBlockAst(blockNameToken.Extent, Utils.EmptyArray<StatementAst>(), null);
}
else
{
endExtent = statementBlock.Extent;
}
extent = ExtentOf(blockNameToken, endExtent);
if (blockNameToken.Kind == TokenKind.Begin && beginBlock == null)
{
beginBlock = new NamedBlockAst(extent, TokenKind.Begin, statementBlock, false);
}
else if (blockNameToken.Kind == TokenKind.Process && processBlock == null)
{
processBlock = new NamedBlockAst(extent, TokenKind.Process, statementBlock, false);
}
else if (blockNameToken.Kind == TokenKind.End && endBlock == null)
{
endBlock = new NamedBlockAst(extent, TokenKind.End, statementBlock, false);
}
else if (blockNameToken.Kind == TokenKind.Dynamicparam && dynamicParamBlock == null)
{
dynamicParamBlock = new NamedBlockAst(extent, TokenKind.Dynamicparam, statementBlock, false);
}
else
{
// ErrorRecovery: this is a semantic error, we can keep parsing w/o trouble.
ReportError(extent,
() => ParserStrings.DuplicateScriptCommandClause, blockNameToken.Kind.Text());
}
SkipNewlinesAndSemicolons();
}
finished_named_block_list:
IScriptExtent scriptBlockExtent;
extent = ExtentOf(startExtent, endExtent);
CompleteScriptBlockBody(lCurly, ref extent, out scriptBlockExtent);
return new ScriptBlockAst(scriptBlockExtent, usingStatements, paramBlockAst, beginBlock, processBlock, endBlock,
dynamicParamBlock);
}
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
Diagnostics.Assert(_allowEnvironmentVariables || FoundError, "VisitScriptBlock should have already reported an error");
return AstVisitAction.Continue;
}
public override AstVisitAction VisitConfigurationDefinition(ConfigurationDefinitionAst configurationDefinitionAst)
{
//
// Check if the ScriptBlockAst contains NamedBlockAst other than the End block
//
ScriptBlockAst configBody = configurationDefinitionAst.Body.ScriptBlock;
if (configBody.BeginBlock != null || configBody.ProcessBlock != null || configBody.DynamicParamBlock != null)
{
var unsupportedNamedBlocks = new NamedBlockAst[] { configBody.BeginBlock, configBody.ProcessBlock, configBody.DynamicParamBlock };
foreach (NamedBlockAst namedBlock in unsupportedNamedBlocks)
{
if (namedBlock != null)
{
_parser.ReportError(namedBlock.OpenCurlyExtent, () => ParserStrings.UnsupportedNamedBlockInConfiguration);
}
}
// ToRemove: No need to continue the parsing if there is no EndBlock, check if (configBody.EndBlock == null)
}
return AstVisitAction.Continue;
}
public override AstVisitAction VisitNamedBlock(NamedBlockAst ast) { return CheckParent(ast); }
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
if (namedBlockAst.Traps.Any())
{
return VisitNamedBlockWithTraps(namedBlockAst);
}
foreach (var stmt in namedBlockAst.Statements)
{
VisitStatement(stmt);
}
return AstVisitAction.SkipChildren;
}
/// <summary>
/// Visit named block
/// </summary>
/// <param name="namedBlockAst"></param>
/// <returns></returns>
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
if (namedBlockAst == null) return null;
// Don't visit traps - they get their own scope
return VisitStatementBlock(namedBlockAst.Statements);
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return null;
}
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
if (namedBlockAst.Traps.Any())
{
return VisitNamedBlockWithTraps(namedBlockAst);
}
// just iterate over children
return base.VisitNamedBlock(namedBlockAst);
}
private Expression<Action<FunctionContext>> CompileNamedBlock(NamedBlockAst namedBlockAst, string funcName)
{
IScriptExtent entryExtent = null;
IScriptExtent exitExtent = null;
if (namedBlockAst.Unnamed)
{
ScriptBlockAst parent = (ScriptBlockAst) namedBlockAst.Parent;
if ((parent.Parent != null) && (parent.Extent is InternalScriptExtent))
{
InternalScriptExtent extent = (InternalScriptExtent) parent.Extent;
entryExtent = new InternalScriptExtent(extent.PositionHelper, extent.StartOffset, extent.StartOffset + 1);
exitExtent = new InternalScriptExtent(extent.PositionHelper, extent.EndOffset - 1, extent.EndOffset);
}
}
else
{
entryExtent = namedBlockAst.OpenCurlyExtent;
exitExtent = namedBlockAst.CloseCurlyExtent;
}
return this.CompileSingleLambda(namedBlockAst.Statements, namedBlockAst.Traps, funcName, entryExtent, exitExtent);
}
private AstVisitAction VisitNamedBlockWithTraps(NamedBlockAst namedBlockAst)
{
foreach (StatementAst statement in namedBlockAst.Statements)
{
try
{
VisitStatement(statement);
}
catch (FlowControlException)
{
// flow control as Exit, Return, Break, and Continue doesn't concern the user and is propagated
throw;
}
catch (Exception ex)
{
TrapStatementAst trapStatementAst = FindMatchingTrapStatement(namedBlockAst.Traps, ex);
if (trapStatementAst == null)
{
throw;
}
SetUnderscoreVariable(ex);
AstVisitAction visitAction = VisitTrapBody(trapStatementAst);
if (visitAction != AstVisitAction.Continue)
{
return AstVisitAction.SkipChildren;
}
}
}
return AstVisitAction.SkipChildren;
}
private ScriptBlockAst NamedBlockListRule(Token lCurly, ParamBlockAst paramBlockAst)
{
IScriptExtent extent = null;
IScriptExtent scriptExtent;
Token token;
IScriptExtent scriptExtent1 = null;
IScriptExtent extent1;
NamedBlockAst namedBlockAst = null;
NamedBlockAst namedBlockAst1 = null;
NamedBlockAst namedBlockAst2 = null;
NamedBlockAst namedBlockAst3 = null;
if (lCurly != null)
{
extent1 = lCurly.Extent;
}
else
{
if (paramBlockAst != null)
{
extent1 = paramBlockAst.Extent;
}
else
{
extent1 = null;
}
}
IScriptExtent extent2 = extent1;
while (true)
{
token = this.NextToken();
TokenKind kind = token.Kind;
if (kind > TokenKind.Dynamicparam)
{
if (kind != TokenKind.End && kind != TokenKind.Process)
{
break;
}
}
else
{
if (kind != TokenKind.Begin && kind != TokenKind.Dynamicparam)
{
break;
}
}
if (extent2 == null)
{
extent2 = token.Extent;
}
extent = token.Extent;
StatementBlockAst statementBlockAst = this.StatementBlockRule();
if (statementBlockAst != null)
{
extent = statementBlockAst.Extent;
}
else
{
object[] objArray = new object[1];
objArray[0] = token.Kind.Text();
this.ReportIncompleteInput(Parser.After(token.Extent), ParserStrings.MissingNamedStatementBlock, objArray);
statementBlockAst = new StatementBlockAst(token.Extent, new StatementAst[0], null);
}
scriptExtent = Parser.ExtentOf(token, extent);
if (token.Kind != TokenKind.Begin || namedBlockAst1 != null)
{
if (token.Kind != TokenKind.Process || namedBlockAst2 != null)
{
if (token.Kind != TokenKind.End || namedBlockAst3 != null)
{
if (token.Kind != TokenKind.Dynamicparam || namedBlockAst != null)
{
object[] objArray1 = new object[1];
objArray1[0] = token.Kind.Text();
this.ReportError(scriptExtent, ParserStrings.DuplicateScriptCommandClause, objArray1);
}
else
{
namedBlockAst = new NamedBlockAst(scriptExtent, TokenKind.Dynamicparam, statementBlockAst, false);
}
}
else
{
namedBlockAst3 = new NamedBlockAst(scriptExtent, TokenKind.End, statementBlockAst, false);
}
}
else
{
namedBlockAst2 = new NamedBlockAst(scriptExtent, TokenKind.Process, statementBlockAst, false);
}
}
else
{
namedBlockAst1 = new NamedBlockAst(scriptExtent, TokenKind.Begin, statementBlockAst, false);
}
this.SkipNewlinesAndSemicolons();
}
this.UngetToken(token);
scriptExtent = Parser.ExtentOf(extent2, extent);
this.CompleteScriptBlockBody(lCurly, ref scriptExtent, out scriptExtent1);
return new ScriptBlockAst(scriptExtent1, paramBlockAst, namedBlockAst1, namedBlockAst2, namedBlockAst3, namedBlockAst);
}
private AstVisitAction VisitNamedBlockWithTraps(NamedBlockAst namedBlockAst)
{
foreach (StatementAst statement in namedBlockAst.Statements)
{
try
{
statement.Visit(this);
}
catch (ReturnException)
{
throw;
}
catch (Exception ex)
{
TrapStatementAst trapStatementAst = FindMatchingTrapStatement(namedBlockAst.Traps, ex);
if (trapStatementAst == null)
{
throw;
}
SetUnderscoreVariable(ex);
AstVisitAction visitAction = VisitTrapBody(trapStatementAst);
if (visitAction != AstVisitAction.Continue)
{
return AstVisitAction.SkipChildren;
}
}
}
return AstVisitAction.SkipChildren;
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst) { return AutomationNull.Value; }
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
// just iterate over children
return base.VisitNamedBlock(namedBlockAst);
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst) { throw PSTraceSource.NewArgumentException("ast"); }
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return(this.VisitStatementBlock(namedBlockAst.Statements));
}
/// <summary>
/// Visit NamedBlockAst. Skip if name of the block
/// is in namestobeskipped
/// </summary>
/// <param name="namedBlockAst"></param>
/// <returns></returns>
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return VisitActionHelper(namedBlockAst);
}
/// <summary/>
public virtual object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return(null);
}
private Expression<Action<FunctionContext>> CompileNamedBlock(NamedBlockAst namedBlockAst, string funcName, ScriptBlockAst rootForDefiningTypes)
{
IScriptExtent entryExtent = null;
IScriptExtent exitExtent = null;
if (namedBlockAst.Unnamed)
{
// Get extent from the function or scriptblock expression parent, if any.
var scriptBlock = (ScriptBlockAst)namedBlockAst.Parent;
if (scriptBlock.Parent != null && scriptBlock.Extent is InternalScriptExtent)
{
// We must have curlies at the start/end.
var scriptExtent = (InternalScriptExtent)scriptBlock.Extent;
entryExtent = new InternalScriptExtent(scriptExtent.PositionHelper, scriptExtent.StartOffset, scriptExtent.StartOffset + 1);
exitExtent = new InternalScriptExtent(scriptExtent.PositionHelper, scriptExtent.EndOffset - 1, scriptExtent.EndOffset);
}
}
else
{
entryExtent = namedBlockAst.OpenCurlyExtent;
exitExtent = namedBlockAst.CloseCurlyExtent;
}
return CompileSingleLambda(namedBlockAst.Statements, namedBlockAst.Traps, funcName, entryExtent, exitExtent, rootForDefiningTypes);
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
throw PSTraceSource.NewArgumentException("ast");
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
Diagnostics.Assert(false, "NamedBlockAst is handled specially, not via the visitor.");
return null;
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return(AutomationNull.Value);
}
public override AstVisitAction VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return AstVisitAction.Continue;
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
return this.VisitStatementBlock(namedBlockAst.Statements);
}
public object VisitNamedBlock(NamedBlockAst namedBlockAst)
{
throw new NotImplementedException();
}