protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
if (CodeRecognizer.IsInfer(imie))
{
return(ConvertInfer(imie));
}
return(base.ConvertMethodInvoke(imie));
}
protected override IStatement ConvertExpressionStatement(IExpressionStatement ies)
{
if (parent == null)
{
return(ies);
}
bool keepIfStatement = false;
// Only keep the surrounding if statement when a factor or constraint is being added.
IExpression expr = ies.Expression;
if (expr is IMethodInvokeExpression)
{
keepIfStatement = true;
if (CodeRecognizer.IsInfer(expr))
{
keepIfStatement = false;
}
}
else if (expr is IAssignExpression)
{
keepIfStatement = false;
IAssignExpression iae = (IAssignExpression)expr;
IMethodInvokeExpression imie = iae.Expression as IMethodInvokeExpression;
if (imie != null)
{
keepIfStatement = true;
if (imie.Arguments.Count > 0)
{
// Statements that copy evidence variables should not send evidence messages.
IVariableDeclaration ivd = Recognizer.GetVariableDeclaration(iae.Target);
IVariableDeclaration ivdArg = Recognizer.GetVariableDeclaration(imie.Arguments[0]);
if (ivd != null && context.InputAttributes.Has <DoNotSendEvidence>(ivd) &&
ivdArg != null && context.InputAttributes.Has <DoNotSendEvidence>(ivdArg))
{
keepIfStatement = false;
}
}
}
else
{
expr = iae.Target;
}
}
if (expr is IVariableDeclarationExpression)
{
IVariableDeclarationExpression ivde = (IVariableDeclarationExpression)expr;
IVariableDeclaration ivd = ivde.Variable;
keepIfStatement = CodeRecognizer.IsStochastic(context, ivd) && !context.InputAttributes.Has <DoNotSendEvidence>(ivd);
}
if (!keepIfStatement)
{
return(ies);
}
IConditionStatement cs = Builder.CondStmt(parent.Condition, Builder.BlockStmt());
cs.Then.Statements.Add(ies);
return(cs);
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
if (CodeRecognizer.IsInfer(imie))
{
return(imie);
}
CheckForDuplicateArguments(imie);
return(base.ConvertMethodInvoke(imie));
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
if (CodeRecognizer.IsInfer(imie))
{
// ignore the variable use
return(imie);
}
return(base.ConvertMethodInvoke(imie));
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
// do not count argument of Infer as a use
if (CodeRecognizer.IsInfer(imie))
{
return(imie);
}
return(base.ConvertMethodInvoke(imie));
}
protected override IStatement ConvertExpressionStatement(IExpressionStatement ies)
{
if (ies.Expression is IAssignExpression iae)
{
if (iae.Expression is IMethodInvokeExpression)
{
factorExprs.Add(iae);
}
}
else if (ies.Expression is IMethodInvokeExpression imie)
{
if (CodeRecognizer.IsInfer(imie))
{
return(ies);
}
factorExprs.Add(ies.Expression);
}
return(ies);
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
if (CodeRecognizer.IsInfer(imie))
{
return(ConvertInfer(imie));
}
foreach (IExpression arg in imie.Arguments)
{
if (arg is IAddressOutExpression)
{
IAddressOutExpression iaoe = (IAddressOutExpression)arg;
targetsOfCurrentAssignment.Add(iaoe.Expression);
}
}
if (Recognizer.IsStaticGenericMethod(imie, new Func <IList <PlaceHolder>, int[][], PlaceHolder[][]>(Factor.JaggedSubarray)))
{
IExpression arrayExpr = imie.Arguments[0];
IVariableDeclaration ivd = Recognizer.GetVariableDeclaration(imie.Arguments[0]);
if (ivd != null && (arrayExpr is IVariableReferenceExpression) && this.variablesLackingVariableFactor.Contains(ivd) &&
!marginalOfVariable.ContainsKey(ivd))
{
VariableInformation vi = VariableInformation.GetVariableInformation(context, ivd);
IList <IStatement> stmts = Builder.StmtCollection();
CreateMarginalChannel(ivd, vi, stmts);
Containers defContainers = context.InputAttributes.Get <Containers>(ivd);
int ancIndex = defContainers.GetMatchingAncestorIndex(context);
Containers missing = defContainers.GetContainersNotInContext(context, ancIndex);
stmts = Containers.WrapWithContainers(stmts, missing.outputs);
context.AddStatementsBeforeAncestorIndex(ancIndex, stmts);
// none of the arguments should need to be transformed
IExpression indicesExpr = imie.Arguments[1];
IExpression marginalExpr = Builder.VarRefExpr(marginalOfVariable[ivd]);
IMethodInvokeExpression mie = Builder.StaticGenericMethod(new Models.FuncOut <IList <PlaceHolder>, int[][], IList <PlaceHolder>, PlaceHolder[][]>(Factor.JaggedSubarrayWithMarginal),
new Type[] { Utilities.Util.GetElementType(arrayExpr.GetExpressionType()) },
arrayExpr, indicesExpr, marginalExpr);
return(mie);
}
}
return(base.ConvertMethodInvoke(imie));
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
CheckMethodArgumentCount(imie);
if (CodeRecognizer.IsInfer(imie))
{
inferCount++;
object decl = Recognizer.GetDeclaration(imie.Arguments[0]);
if (decl != null && !context.InputAttributes.Has <IsInferred>(decl))
{
context.InputAttributes.Set(decl, new IsInferred());
}
// the arguments must not be substituted for their values, so we don't call ConvertExpression
var newArgs = imie.Arguments.Select(CodeRecognizer.RemoveCast);
IMethodInvokeExpression infer = Builder.MethodInvkExpr();
infer.Method = imie.Method;
infer.Arguments.AddRange(newArgs);
context.InputAttributes.CopyObjectAttributesTo(imie, context.OutputAttributes, infer);
return(infer);
}
IExpression converted = base.ConvertMethodInvoke(imie);
if (converted is IMethodInvokeExpression mie)
{
foreach (IExpression arg in mie.Arguments)
{
if (arg is IAddressOutExpression iaoe)
{
IVariableDeclaration ivd = Recognizer.GetVariableDeclaration(iaoe.Expression);
if (ivd != null)
{
FactorManager.FactorInfo info = CodeRecognizer.GetFactorInfo(context, mie);
if (info != null && info.IsDeterministicFactor && !context.InputAttributes.Has <DerivedVariable>(ivd))
{
context.InputAttributes.Set(ivd, new DerivedVariable());
}
}
}
}
}
return(converted);
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
IExpression converted = base.ConvertMethodInvoke(imie);
if (converted is IMethodInvokeExpression mie)
{
if (Recognizer.IsStaticGenericMethod(imie, new Func <PlaceHolder, ICompilerAttribute, PlaceHolder>(Attrib.Var)))
{
IVariableReferenceExpression ivre = imie.Arguments[0] as IVariableReferenceExpression;
IVariableDeclaration target = ivre.Variable.Resolve();
IExpression expr = imie.Arguments[1];
AddAttribute(target, expr);
return(null);
}
else if (Recognizer.IsStaticMethod(imie, new Action <object, object>(Attrib.InitialiseTo)))
{
IVariableReferenceExpression ivre = imie.Arguments[0] as IVariableReferenceExpression;
IVariableDeclaration target = ivre.Variable.Resolve();
context.OutputAttributes.Set(target, new InitialiseTo(imie.Arguments[1]));
return(null);
}
else if (CodeRecognizer.IsInfer(imie))
{
// the arguments must not be substituted for their values, so we don't call ConvertExpression
IVariableDeclaration ivd = Recognizer.GetVariableDeclaration(imie.Arguments[0]);
if (ivd != null)
{
var vi = VariableInformation.GetVariableInformation(context, ivd);
QueryType query = (imie.Arguments.Count < 3) ? null : (QueryType)evaluator.Evaluate(imie.Arguments[2]);
vi.NeedsMarginalDividedByPrior = (query == QueryTypes.MarginalDividedByPrior);
}
return(imie);
}
bool anyArgumentIsLiteral = mie.Arguments.Any(arg => arg is ILiteralExpression);
if (anyArgumentIsLiteral)
{
if (Recognizer.IsStaticMethod(converted, new Func <bool, bool, bool>(Factors.Factor.And)))
{
if (mie.Arguments.Any(arg => arg is ILiteralExpression ile && ile.Value.Equals(false)))
{
return(Builder.LiteralExpr(false));
}
// any remaining literals must be true, and therefore can be ignored.
var reducedArguments = mie.Arguments.Where(arg => !(arg is ILiteralExpression));
if (reducedArguments.Count() == 1)
{
return(reducedArguments.First());
}
else
{
return(Builder.LiteralExpr(true));
}
}
else if (Recognizer.IsStaticMethod(converted, new Func <bool, bool, bool>(Factors.Factor.Or)))
{
if (mie.Arguments.Any(arg => arg is ILiteralExpression ile && ile.Value.Equals(true)))
{
return(Builder.LiteralExpr(true));
}
// any remaining literals must be false, and therefore can be ignored.
var reducedArguments = mie.Arguments.Where(arg => !(arg is ILiteralExpression));
if (reducedArguments.Count() == 1)
{
return(reducedArguments.First());
}
else
{
return(Builder.LiteralExpr(false));
}
}
else if (Recognizer.IsStaticMethod(converted, new Func <bool, bool>(Factors.Factor.Not)))
{
bool allArgumentsAreLiteral = mie.Arguments.All(arg => arg is ILiteralExpression);
if (allArgumentsAreLiteral)
{
return(Builder.LiteralExpr(evaluator.Evaluate(mie)));
}
}
}
}
return(converted);
}
protected override IExpression ConvertMethodInvoke(IMethodInvokeExpression imie)
{
if (Recognizer.IsStaticGenericMethod(imie, new Func <PlaceHolder, ICompilerAttribute, PlaceHolder>(Attrib.Var)))
{
IVariableReferenceExpression ivre = imie.Arguments[0] as IVariableReferenceExpression;
IVariableDeclaration target = ivre.Variable.Resolve();
IExpression expr = CodeRecognizer.RemoveCast(imie.Arguments[1]);
AddAttribute(target, expr);
return(null);
}
else if (Recognizer.IsStaticMethod(imie, new Action <object, object>(Attrib.InitialiseTo)))
{
IVariableReferenceExpression ivre = CodeRecognizer.RemoveCast(imie.Arguments[0]) as IVariableReferenceExpression;
IVariableDeclaration target = ivre.Variable.Resolve();
context.OutputAttributes.Set(target, new InitialiseTo(imie.Arguments[1]));
return(null);
}
else if (CodeRecognizer.IsInfer(imie))
{
inferCount++;
object decl = Recognizer.GetDeclaration(imie.Arguments[0]);
if (decl != null && !context.InputAttributes.Has <IsInferred>(decl))
{
context.InputAttributes.Set(decl, new IsInferred());
}
// the arguments must not be substituted for their values, so we don't call ConvertExpression
List <IExpression> newArgs = new List <IExpression>();
foreach (var arg in imie.Arguments)
{
newArgs.Add(CodeRecognizer.RemoveCast(arg));
}
IMethodInvokeExpression mie = Builder.MethodInvkExpr();
mie.Method = imie.Method;
mie.Arguments.AddRange(newArgs);
context.InputAttributes.CopyObjectAttributesTo(imie, context.OutputAttributes, mie);
return(mie);
}
IExpression converted = base.ConvertMethodInvoke(imie);
if (converted is IMethodInvokeExpression)
{
var mie = (IMethodInvokeExpression)converted;
bool isAnd = Recognizer.IsStaticMethod(converted, new Func <bool, bool, bool>(Factors.Factor.And));
bool isOr = Recognizer.IsStaticMethod(converted, new Func <bool, bool, bool>(Factors.Factor.Or));
bool anyArgumentIsLiteral = mie.Arguments.Any(arg => arg is ILiteralExpression);
if (anyArgumentIsLiteral)
{
if (isAnd)
{
if (mie.Arguments.Any(arg => arg is ILiteralExpression && ((ILiteralExpression)arg).Value.Equals(false)))
{
return(Builder.LiteralExpr(false));
}
// any remaining literals must be true, and therefore can be ignored.
var reducedArguments = mie.Arguments.Where(arg => !(arg is ILiteralExpression));
if (reducedArguments.Count() == 1)
{
return(reducedArguments.First());
}
else
{
return(Builder.LiteralExpr(true));
}
}
else if (isOr)
{
if (mie.Arguments.Any(arg => arg is ILiteralExpression && ((ILiteralExpression)arg).Value.Equals(true)))
{
return(Builder.LiteralExpr(true));
}
// any remaining literals must be false, and therefore can be ignored.
var reducedArguments = mie.Arguments.Where(arg => !(arg is ILiteralExpression));
if (reducedArguments.Count() == 1)
{
return(reducedArguments.First());
}
else
{
return(Builder.LiteralExpr(false));
}
}
else if (Recognizer.IsStaticMethod(converted, new Func <bool, bool>(Factors.Factor.Not)))
{
bool allArgumentsAreLiteral = mie.Arguments.All(arg => arg is ILiteralExpression);
if (allArgumentsAreLiteral)
{
return(Builder.LiteralExpr(evaluator.Evaluate(mie)));
}
}
}
foreach (IExpression arg in mie.Arguments)
{
if (arg is IAddressOutExpression)
{
IAddressOutExpression iaoe = (IAddressOutExpression)arg;
IVariableDeclaration ivd = Recognizer.GetVariableDeclaration(iaoe.Expression);
if (ivd != null)
{
FactorManager.FactorInfo info = CodeRecognizer.GetFactorInfo(context, mie);
if (info != null && info.IsDeterministicFactor && !context.InputAttributes.Has <DerivedVariable>(ivd))
{
context.InputAttributes.Set(ivd, new DerivedVariable());
}
}
}
}
}
return(converted);
}