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use crate::device::DeviceExtensions;
use crate::instance::InstanceExtensions;
use crate::Version;
use std::error;
use std::fmt;
include!(concat!(env!("OUT_DIR"), "/features.rs"));
#[derive(Clone, Copy, Debug)]
pub struct FeatureRestrictionError {
pub feature: &'static str,
pub restriction: FeatureRestriction,
}
impl error::Error for FeatureRestrictionError {}
impl fmt::Display for FeatureRestrictionError {
#[inline]
fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
write!(
fmt,
"a restriction for the feature {} was not met: {}",
self.feature, self.restriction,
)
}
}
#[derive(Clone, Copy, Debug)]
pub enum FeatureRestriction {
NotSupported,
RequiresFeature(&'static str),
ConflictsFeature(&'static str),
RequiredByExtension(&'static str),
}
impl fmt::Display for FeatureRestriction {
#[inline]
fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
match *self {
FeatureRestriction::NotSupported => {
write!(fmt, "not supported by the physical device")
}
FeatureRestriction::RequiresFeature(feat) => {
write!(fmt, "requires feature {} to be enabled", feat)
}
FeatureRestriction::ConflictsFeature(feat) => {
write!(fmt, "requires feature {} to be disabled", feat)
}
FeatureRestriction::RequiredByExtension(ext) => {
write!(fmt, "required to be enabled by extension {}", ext)
}
}
}
}