/// <summary>
/// Creates a set of FunctionImportParameter objects from the parameters passed in.
/// </summary>
public static IEnumerable<FunctionImportParameter> Create(IEnumerable<FunctionParameter> parameters, CodeGenerationTools code, MetadataTools ef)
{
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (code == null)
{
throw new ArgumentNullException("code");
}
if (ef == null)
{
throw new ArgumentNullException("ef");
}
UniqueIdentifierService unique = new UniqueIdentifierService();
List<FunctionImportParameter> importParameters = new List<FunctionImportParameter>();
foreach (FunctionParameter parameter in parameters)
{
FunctionImportParameter importParameter = new FunctionImportParameter();
importParameter.Source = parameter;
importParameter.RawFunctionParameterName = unique.AdjustIdentifier(code.CamelCase(parameter.Name));
importParameter.FunctionParameterName = code.Escape(importParameter.RawFunctionParameterName);
if (parameter.Mode == ParameterMode.In)
{
TypeUsage typeUsage = parameter.TypeUsage;
importParameter.NeedsLocalVariable = true;
importParameter.FunctionParameterType = code.GetTypeName(typeUsage);
importParameter.EsqlParameterName = parameter.Name;
Type clrType = ef.UnderlyingClrType(parameter.TypeUsage.EdmType);
importParameter.RawClrTypeName = typeUsage.EdmType is EnumType ? code.GetTypeName(typeUsage.EdmType) : code.Escape(clrType);
importParameter.IsNullableOfT = clrType.IsValueType;
}
else
{
importParameter.NeedsLocalVariable = false;
importParameter.FunctionParameterType = "ObjectParameter";
importParameter.ExecuteParameterName = importParameter.FunctionParameterName;
}
importParameters.Add(importParameter);
}
// we save the local parameter uniquification for a second pass to make the visible parameters
// as pretty and sensible as possible
for (int i = 0; i < importParameters.Count; i++)
{
FunctionImportParameter importParameter = importParameters[i];
if (importParameter.NeedsLocalVariable)
{
importParameter.LocalVariableName = unique.AdjustIdentifier(importParameter.RawFunctionParameterName + "Parameter");
importParameter.ExecuteParameterName = importParameter.LocalVariableName;
}
}
return importParameters;
}
