private BoundStatement AddAnalysisPoint(SyntaxNode syntaxForSpan, FileLinePositionSpan span, SyntheticBoundNodeFactory statementFactory)
{
// Add an entry in the spans array.
int spansIndex = _spansBuilder.Count;
_spansBuilder.Add(new SourceSpan(GetSourceDocument(syntaxForSpan, span), span.StartLinePosition.Line, span.StartLinePosition.Character, span.EndLinePosition.Line, span.EndLinePosition.Character));
// Generate "_payload[pointIndex] = true".
BoundArrayAccess payloadCell = statementFactory.ArrayAccess(statementFactory.Local(_methodPayload), statementFactory.Literal(spansIndex));
return(statementFactory.Assignment(payloadCell, statementFactory.Literal(true)));
}
public override BoundStatement CreateBlockPrologue(BoundBlock original, out LocalSymbol synthesizedLocal)
{
BoundStatement previousPrologue = base.CreateBlockPrologue(original, out synthesizedLocal);
if (_methodBody == original)
{
_dynamicAnalysisSpans = _spansBuilder.ToImmutableAndFree();
// In the future there will be multiple analysis kinds.
const int analysisKind = 0;
ArrayTypeSymbol modulePayloadType = ArrayTypeSymbol.CreateCSharpArray(_methodBodyFactory.Compilation.Assembly, _payloadType);
// Synthesize the initialization of the instrumentation payload array, using concurrency-safe code:
//
// var payload = PID.PayloadRootField[methodIndex];
// if (payload == null)
// payload = Instrumentation.CreatePayload(mvid, methodIndex, fileIndex, ref PID.PayloadRootField[methodIndex], payloadLength);
BoundStatement payloadInitialization = _methodBodyFactory.Assignment(_methodBodyFactory.Local(_methodPayload), _methodBodyFactory.ArrayAccess(_methodBodyFactory.InstrumentationPayloadRoot(analysisKind, modulePayloadType), ImmutableArray.Create(_methodBodyFactory.MethodDefIndex(_method))));
BoundExpression mvid = _methodBodyFactory.ModuleVersionId();
BoundExpression methodToken = _methodBodyFactory.MethodDefIndex(_method);
BoundExpression fileIndex = _methodBodyFactory.SourceDocumentIndex(GetSourceDocument(_methodBody.Syntax));
BoundExpression payloadSlot = _methodBodyFactory.ArrayAccess(_methodBodyFactory.InstrumentationPayloadRoot(analysisKind, modulePayloadType), ImmutableArray.Create(_methodBodyFactory.MethodDefIndex(_method)));
BoundStatement createPayloadCall = _methodBodyFactory.Assignment(_methodBodyFactory.Local(_methodPayload), _methodBodyFactory.Call(null, _createPayload, mvid, methodToken, fileIndex, payloadSlot, _methodBodyFactory.Literal(_dynamicAnalysisSpans.Length)));
BoundExpression payloadNullTest = _methodBodyFactory.Binary(BinaryOperatorKind.ObjectEqual, _methodBodyFactory.SpecialType(SpecialType.System_Boolean), _methodBodyFactory.Local(_methodPayload), _methodBodyFactory.Null(_payloadType));
BoundStatement payloadIf = _methodBodyFactory.If(payloadNullTest, createPayloadCall);
Debug.Assert(synthesizedLocal == null);
synthesizedLocal = _methodPayload;
ArrayBuilder <BoundStatement> prologueStatements = ArrayBuilder <BoundStatement> .GetInstance(previousPrologue == null? 3 : 4);
prologueStatements.Add(payloadInitialization);
prologueStatements.Add(payloadIf);
if (_methodEntryInstrumentation != null)
{
prologueStatements.Add(_methodEntryInstrumentation);
}
if (previousPrologue != null)
{
prologueStatements.Add(previousPrologue);
}
return(_methodBodyFactory.StatementList(prologueStatements.ToImmutableAndFree()));
}
return(previousPrologue);
}
private BoundStatement AddAnalysisPoint(SyntaxNode syntaxForSpan, FileLinePositionSpan span, SyntheticBoundNodeFactory statementFactory)
{
// Add an entry in the spans array.
int spansIndex = _spansBuilder.Count;
_spansBuilder.Add(new SourceSpan(GetSourceDocument(syntaxForSpan, span), span.StartLinePosition.Line, span.StartLinePosition.Character, span.EndLinePosition.Line, span.EndLinePosition.Character));
// Generate "_payload[pointIndex] = true".
BoundArrayAccess payloadCell = statementFactory.ArrayAccess(statementFactory.Local(_methodPayload), statementFactory.Literal(spansIndex));
return statementFactory.Assignment(payloadCell, statementFactory.Literal(true));
}