private ExprParamPair GenDefValue(DefineValue ph, Expression prev, ParamList defined, ParamList overlapCandidate)
{
Contract.Requires <ArgumentNullException>(ph != null);
if (ph.Value == null && prev == null)
{
throw Error("値が指定されていません。", ph.Range.Start);
}
if (ph.Value != null && prev != null)
{
throw Error("値が二重に指定されています。", ph.Range.Start);
}
ParameterExpression variable =
ParamList.Search(overlapCandidate, p => p.Name == ph.Name) ??
Expression.Parameter(typeof(object), ph.Name);
var value = prev ?? ElemGen.GenElem(ph.Value);
var assign = Expression.Assign(variable, value);
defined = new ParamList(variable, defined);
return(new ExprParamPair(assign, defined));
}
private ExprParamPair GenDefValue(DefineValue ph, Expression prev, ParamList defined, ParamList overlapCandidate)
{
Contract.Requires<ArgumentNullException>(ph != null);
if (ph.Value == null && prev == null)
throw Error("値が指定されていません。", ph.Range.Start);
if (ph.Value != null && prev != null)
throw Error("値が二重に指定されています。", ph.Range.Start);
ParameterExpression variable =
ParamList.Search(overlapCandidate, p => p.Name == ph.Name) ??
Expression.Parameter(typeof(object), ph.Name);
var value = prev ?? ElemGen.GenElem(ph.Value);
var assign = Expression.Assign(variable, value);
defined = new ParamList(variable, defined);
return new ExprParamPair(assign, defined);
}
