public object GetConstantValue(bool throwOnInvalidMetadata)
{
try {
var metadata = module.metadata;
var parameterDef = metadata.GetParameter(handle);
if (IsDecimalConstant)
{
return(DecimalConstantHelper.GetDecimalConstantValue(module, parameterDef.GetCustomAttributes()));
}
var constantHandle = parameterDef.GetDefaultValue();
if (constantHandle.IsNil)
{
return(null);
}
var constant = metadata.GetConstant(constantHandle);
var blobReader = metadata.GetBlobReader(constant.Value);
try {
return(blobReader.ReadConstant(constant.TypeCode));
} catch (ArgumentOutOfRangeException) {
throw new BadImageFormatException($"Constant with invalid typecode: {constant.TypeCode}");
}
} catch (BadImageFormatException) when(!throwOnInvalidMetadata)
{
return(null);
}
}
public object GetConstantValue(bool throwOnInvalidMetadata)
{
object val = LazyInit.VolatileRead(ref this.constantValue);
if (val != null)
{
return(val);
}
try
{
var metadata = module.metadata;
var fieldDef = metadata.GetFieldDefinition(handle);
if (IsDecimalConstant && DecimalConstantHelper.AllowsDecimalConstants(module))
{
val = DecimalConstantHelper.GetDecimalConstantValue(module, fieldDef.GetCustomAttributes());
}
else
{
var constantHandle = fieldDef.GetDefaultValue();
if (constantHandle.IsNil)
{
return(null);
}
var constant = metadata.GetConstant(constantHandle);
var blobReader = metadata.GetBlobReader(constant.Value);
try
{
val = blobReader.ReadConstant(constant.TypeCode);
}
catch (ArgumentOutOfRangeException)
{
throw new BadImageFormatException($"Constant with invalid typecode: {constant.TypeCode}");
}
}
return(LazyInit.GetOrSet(ref this.constantValue, val));
}
catch (BadImageFormatException) when(!throwOnInvalidMetadata)
{
return(null);
}
}
