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use std::{self, fmt};
#[derive(Debug, Ord, PartialOrd, Eq, PartialEq, Clone)]
pub enum Error {
InvalidGeometry(String),
ImpossibleOperation(String),
GeosError(String),
GeosFunctionError(PredicateType, i32),
NoConstructionFromNullPtr(String),
ConversionError(String),
GenericError(String),
}
impl std::error::Error for Error {}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::InvalidGeometry(ref s) => write!(f, "Invalid geometry, {}", s),
Error::ImpossibleOperation(ref s) => write!(f, "Impossible operation, {}", s),
Error::GeosError(ref s) => write!(f, "error while calling libgeos while {}", s),
Error::GeosFunctionError(p, e) => write!(
f,
"error while calling libgeos method {} (error number = {})",
p, e
),
Error::NoConstructionFromNullPtr(ref s) => write!(
f,
"impossible to build a geometry from a nullptr in \"{}\"",
s
),
Error::ConversionError(ref s) => write!(f, "impossible to convert geometry, {}", s),
Error::GenericError(ref s) => write!(f, "generic error: {}", s),
}
}
}
pub type GResult<T> = std::result::Result<T, Error>;
#[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq)]
pub enum PredicateType {
Intersects,
Crosses,
Disjoint,
Touches,
Overlaps,
Within,
Equals,
EqualsExact,
Covers,
CoveredBy,
Contains,
IsRing,
IsEmpty,
IsSimple,
PreparedContains,
PreparedContainsProperly,
PreparedCoveredBy,
PreparedCovers,
PreparedCrosses,
PreparedDisjoint,
PreparedIntersects,
PreparedOverlaps,
PreparedTouches,
PreparedWithin,
Normalize,
}
impl std::fmt::Display for PredicateType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}", self)
}
}