51 lines
1.3 KiB
Rust
51 lines
1.3 KiB
Rust
use std::error::Error;
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use std::fmt;
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use std::str::FromStr;
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use serde::{Serialize, Deserialize};
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#[derive(Debug, Copy, Clone, PartialOrd, Ord, PartialEq, Eq, Hash)]
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#[derive(Serialize, Deserialize)]
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pub enum FacetType {
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String,
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Float,
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Integer,
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}
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impl fmt::Display for FacetType {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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FacetType::String => f.write_str("string"),
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FacetType::Float => f.write_str("float"),
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FacetType::Integer => f.write_str("integer"),
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}
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}
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}
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impl FromStr for FacetType {
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type Err = InvalidFacetType;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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if s.eq_ignore_ascii_case("string") {
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Ok(FacetType::String)
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} else if s.eq_ignore_ascii_case("float") {
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Ok(FacetType::Float)
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} else if s.eq_ignore_ascii_case("integer") {
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Ok(FacetType::Integer)
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} else {
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Err(InvalidFacetType)
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}
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}
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}
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#[derive(Debug, Copy, Clone, PartialOrd, Ord, PartialEq, Eq, Hash)]
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pub struct InvalidFacetType;
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impl fmt::Display for InvalidFacetType {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.write_str(r#"Invalid facet type, must be "string", "float" or "integer""#)
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}
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}
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impl Error for InvalidFacetType { }
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