public ExprNodeVarargOnlyArrayEvalNoCoerce(
ExprNodeVarargOnlyArrayForge forge,
ExprEvaluator[] evals)
{
this.forge = forge;
this.evals = evals;
}
internal static Pair<ExprForge[], ExprEvaluator[]> MakeVarargArrayEval(
MethodInfo method,
ExprForge[] childForges)
{
var methodParameterTypes = method.GetParameterTypes();
ExprEvaluator[] evals = new ExprEvaluator[methodParameterTypes.Length];
ExprForge[] forges = new ExprForge[methodParameterTypes.Length];
Type varargClass = methodParameterTypes[methodParameterTypes.Length - 1].GetElementType();
Type varargClassBoxed = varargClass.GetBoxedType();
if (methodParameterTypes.Length > 1) {
Array.Copy(childForges, 0, forges, 0, forges.Length - 1);
}
int varargArrayLength = childForges.Length - methodParameterTypes.Length + 1;
// handle passing array along
if (varargArrayLength == 1) {
ExprForge lastForge = childForges[methodParameterTypes.Length - 1];
Type lastReturns = lastForge.EvaluationType;
if (lastReturns != null && lastReturns.IsArray) {
forges[methodParameterTypes.Length - 1] = lastForge;
return new Pair<ExprForge[], ExprEvaluator[]>(forges, evals);
}
}
// handle parameter conversion to vararg parameter
ExprForge[] varargForges = new ExprForge[varargArrayLength];
Coercer[] coercers = new Coercer[varargForges.Length];
bool needCoercion = false;
for (int i = 0; i < varargArrayLength; i++) {
int childIndex = i + methodParameterTypes.Length - 1;
Type resultType = childForges[childIndex].EvaluationType;
varargForges[i] = childForges[childIndex];
if (resultType == null && varargClass.CanBeNull()) {
continue;
}
if (TypeHelper.IsSubclassOrImplementsInterface(resultType, varargClass)) {
// no need to coerce
continue;
}
if (resultType.GetBoxedType() != varargClassBoxed) {
needCoercion = true;
coercers[i] = SimpleNumberCoercerFactory.GetCoercer(resultType, varargClassBoxed);
}
}
ExprForge varargForge = new ExprNodeVarargOnlyArrayForge(
varargForges,
varargClass,
needCoercion ? coercers : null);
forges[methodParameterTypes.Length - 1] = varargForge;
evals[methodParameterTypes.Length - 1] = varargForge.ExprEvaluator;
return new Pair<ExprForge[], ExprEvaluator[]>(forges, evals);
}
