public override Expression Compile(ParameterExpression stateParameterExpression, LabelTarget returnTarget, LogicExpression valueExpression)
{
var value = this.Target.Compile(stateParameterExpression, returnTarget);
var convertedValue = Expression.Convert(value, typeof(LogicStructureInstance));
var valueVariable = Expression.Variable(typeof(LogicStructureInstance), "value");
var field = Expression.Variable(typeof(LogicField), "field");
Expression<Func<LogicStructureInstance, string, LogicField>> lookupField =
(x, z) => x.Fields.Keys.First(y => y.Name == z);
var assignValue = Expression.Assign(valueVariable, convertedValue);
var assignFieldName = Expression.Assign(
field,
Expression.Invoke(lookupField, valueVariable, Expression.Constant(this.Field)));
var assignField =
Expression.Assign(
Expression.Property(Expression.Property(valueVariable, "Fields"), "Item", field),
Expression.Convert(valueExpression.Compile(stateParameterExpression, returnTarget), typeof(object)));
var assignFieldSet =
Expression.Assign(
Expression.Property(Expression.Property(valueVariable, "FieldsSet"), "Item", field),
Expression.Constant(true));
return Expression.Block(
new[] { valueVariable, field },
assignValue,
assignFieldName,
assignField,
assignFieldSet);
}
public AdditionLogicExpression(
LogicExpression leftHandExpression,
string op,
LogicExpression rightHandExpression)
{
this.LeftHandExpression = leftHandExpression;
this.Op = op;
this.RightHandExpression = rightHandExpression;
}
public ComparisonLogicExpression(
LogicExpression leftHandExpression,
string op,
LogicExpression rightHandExpression)
{
this.LeftHandExpression = leftHandExpression;
this.Op = op;
this.RightHandExpression = rightHandExpression;
}
public override Expression Compile(
ParameterExpression stateParameterExpression,
LabelTarget returnTarget,
LogicExpression valueExpression)
{
return
Expression.Assign(
Expression.Property(
Expression.Property(stateParameterExpression, "Variables"),
"Item",
Expression.Constant(this.Identifier)),
Expression.Convert(valueExpression.Compile(stateParameterExpression, returnTarget), typeof(object)));
}
public override Expression Compile(
ParameterExpression stateParameterExpression,
LabelTarget returnTarget,
LogicExpression valueExpression)
{
return
(Expression.Assign(
Expression.Property(
Expression.Property(stateParameterExpression, "Variables"),
"Item",
Expression.Constant(this.Identifier)),
Expression.Convert(valueExpression.Compile(stateParameterExpression, returnTarget), typeof(object))));
}
public AssignLogicStatement(LogicAssignmentTarget assignmentTarget, string op, LogicExpression expression)
{
this.AssignmentTarget = assignmentTarget;
switch (op)
{
case "=":
this.Expression = expression;
break;
case "+=":
this.Expression = new AdditionLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"+",
expression);
break;
case "-=":
this.Expression = new AdditionLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"-",
expression);
break;
case "*=":
this.Expression = new MultiplyLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"*",
expression);
break;
case "/=":
this.Expression = new MultiplyLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"/",
expression);
break;
default:
throw new InvalidOperationException();
}
}
public AssignLogicStatement(LogicAssignmentTarget assignmentTarget, string op, LogicExpression expression)
{
this.AssignmentTarget = assignmentTarget;
switch (op)
{
case "=":
this.Expression = expression;
break;
case "+=":
this.Expression = new AdditionLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"+",
expression);
break;
case "-=":
this.Expression = new AdditionLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"-",
expression);
break;
case "*=":
this.Expression = new MultiplyLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"*",
expression);
break;
case "/=":
this.Expression = new MultiplyLogicExpression(
this.AssignmentTarget.GetReadExpression(),
"/",
expression);
break;
default:
throw new InvalidOperationException();
}
}
public WhileLogicStatement(LogicExpression condition, LogicStatement statement)
{
this.Condition = condition;
this.Statement = statement;
}
public abstract Expression Compile(ParameterExpression stateParameterExpression, LabelTarget returnTarget, LogicExpression valueExpression);
public FieldLogicAssignmentTarget(LogicExpression target, string field)
{
this.Target = target;
this.Field = field;
}
public IfElseLogicStatement(LogicExpression condition, LogicStatement statement, LogicStatement elseStatement)
{
this.Condition = condition;
this.Statement = statement;
this.ElseStatement = elseStatement;
}
public IfElseLogicStatement(LogicExpression condition, LogicStatement statement, LogicStatement elseStatement)
{
this.Condition = condition;
this.Statement = statement;
this.ElseStatement = elseStatement;
}
public UnaryLogicExpression(string op, LogicExpression expression)
{
this.Op = op;
this.Expression = expression;
}
public MultiplyLogicExpression(LogicExpression leftHandExpression, string op, LogicExpression rightHandExpression)
{
this.LeftHandExpression = leftHandExpression;
this.Op = op;
this.RightHandExpression = rightHandExpression;
}
public ReturnLogicStatement(LogicExpression expression)
{
this.Expression = expression;
}
public UnaryLogicExpression(string op, LogicExpression expression)
{
this.Op = op;
this.Expression = expression;
}
public WhileLogicStatement(LogicExpression condition, LogicStatement statement)
{
this.Condition = condition;
this.Statement = statement;
}
public LookupLogicExpression(LogicExpression expression, string field)
{
this.Expression = expression;
this.Field = field;
}
public override Expression Compile(ParameterExpression stateParameterExpression, LabelTarget returnTarget, LogicExpression valueExpression)
{
var value = this.Target.Compile(stateParameterExpression, returnTarget);
var convertedValue = Expression.Convert(value, typeof(LogicStructureInstance));
var valueVariable = Expression.Variable(typeof(LogicStructureInstance), "value");
var field = Expression.Variable(typeof(LogicField), "field");
Expression <Func <LogicStructureInstance, string, LogicField> > lookupField =
(x, z) => x.Fields.Keys.First(y => y.Name == z);
var assignValue = Expression.Assign(valueVariable, convertedValue);
var assignFieldName = Expression.Assign(
field,
Expression.Invoke(lookupField, valueVariable, Expression.Constant(this.Field)));
var assignField =
Expression.Assign(
Expression.Property(Expression.Property(valueVariable, "Fields"), "Item", field),
Expression.Convert(valueExpression.Compile(stateParameterExpression, returnTarget), typeof(object)));
var assignFieldSet =
Expression.Assign(
Expression.Property(Expression.Property(valueVariable, "FieldsSet"), "Item", field),
Expression.Constant(true));
return(Expression.Block(
new[] { valueVariable, field },
assignValue,
assignFieldName,
assignField,
assignFieldSet));
}
public abstract Expression Compile(ParameterExpression stateParameterExpression, LabelTarget returnTarget, LogicExpression valueExpression);
public ReturnLogicStatement(LogicExpression expression)
{
this.Expression = expression;
}
public LookupLogicExpression(LogicExpression expression, string field)
{
this.Expression = expression;
this.Field = field;
}
public FieldLogicAssignmentTarget(LogicExpression target, string field)
{
this.Target = target;
this.Field = field;
}