private ScriptBlock(IParameterMetadataProvider ast, bool isFilter, CompiledScriptBlockData _scriptBlockData)
{
this.languageMode = null;
this._ast = ast;
this._scriptBlockData = _scriptBlockData;
this._isFilter = isFilter;
this.SetLanguageModeFromContext();
}
private ScriptBlock(CompiledScriptBlockData scriptBlockData)
{
_scriptBlockData = scriptBlockData;
// LanguageMode is a nullable PSLanguageMode enumeration because script blocks
// need to inherit the language mode from the context in which they are executing.
// We can't assume FullLanguage by default when there is no context, as there are
// script blocks (such as the script blocks used in Workflow activities) that are
// created by the host without a "current language mode" to inherit. They ultimately
// get their language mode set when they are finally invoked in a constrained
// language runspace.
// Script blocks that should always be run under FullLanguage mode (i.e.: set in
// InitialSessionState, etc.) should explicitly set the LanguageMode to FullLanguage
// when they are created.
ExecutionContext context = LocalPipeline.GetExecutionContextFromTLS();
if (context != null)
{
this.LanguageMode = context.LanguageMode;
}
}
internal void Compile(CompiledScriptBlockData scriptBlock, bool optimize)
{
IParameterMetadataProvider ast = scriptBlock.Ast;
this.Optimize = optimize;
this._compilingScriptCmdlet = scriptBlock.UsesCmdletBinding;
string file = ((Ast) ast).Extent.File;
if (file != null)
{
this._debugSymbolDocument = Expression.SymbolDocument(file);
}
Tuple<Type, Dictionary<string, int>> tuple = VariableAnalysis.Analyze(ast, !optimize, this._compilingScriptCmdlet);
this.LocalVariablesTupleType = tuple.Item1;
Dictionary<string, int> dictionary = tuple.Item2;
if (!dictionary.TryGetValue("switch", out this._switchTupleIndex))
{
this._switchTupleIndex = -2;
}
if (!dictionary.TryGetValue("foreach", out this._foreachTupleIndex))
{
this._foreachTupleIndex = -2;
}
this.LocalVariablesParameter = Expression.Variable(this.LocalVariablesTupleType, "locals");
ast.Body.Accept(this);
if (!this._sequencePoints.Any<IScriptExtent>())
{
this._sequencePoints.Add(((Ast) ast).Extent);
}
if (optimize)
{
scriptBlock.DynamicParamBlockTree = this._dynamicParamBlockLambda;
scriptBlock.BeginBlockTree = this._beginBlockLambda;
scriptBlock.ProcessBlockTree = this._processBlockLambda;
scriptBlock.EndBlockTree = this._endBlockLambda;
scriptBlock.LocalsMutableTupleType = this.LocalVariablesTupleType;
scriptBlock.NameToIndexMap = dictionary;
}
else
{
scriptBlock.UnoptimizedDynamicParamBlockTree = this._dynamicParamBlockLambda;
scriptBlock.UnoptimizedBeginBlockTree = this._beginBlockLambda;
scriptBlock.UnoptimizedProcessBlockTree = this._processBlockLambda;
scriptBlock.UnoptimizedEndBlockTree = this._endBlockLambda;
scriptBlock.UnoptimizedLocalsMutableTupleType = this.LocalVariablesTupleType;
}
scriptBlock.CompileInterpretDecision = (this._stmtCount > 300) ? CompileInterpretChoice.NeverCompile : CompileInterpretChoice.CompileOnDemand;
if (scriptBlock.SequencePoints == null)
{
scriptBlock.SequencePoints = this._sequencePoints.ToArray();
}
}
