2020-03-19 09:20:12 +00:00
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use crate::{impl_scalar_internal, Result, Scalar, Value};
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2020-03-01 16:59:04 +00:00
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use std::ops::{Deref, DerefMut};
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2020-03-09 10:05:52 +00:00
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/// ID scalar
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///
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/// The input is a string or integer, and the output is a string.
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2020-03-01 16:59:04 +00:00
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#[derive(Clone, Ord, PartialOrd, Eq, PartialEq, Hash, Debug)]
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pub struct ID(String);
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impl Deref for ID {
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type Target = String;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl DerefMut for ID {
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fn deref_mut(&mut self) -> &mut Self::Target {
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&mut self.0
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}
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}
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2020-03-17 09:26:59 +00:00
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impl From<String> for ID {
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fn from(value: String) -> Self {
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ID(value)
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}
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}
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impl<'a> From<&'a str> for ID {
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fn from(value: &'a str) -> Self {
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ID(value.to_string())
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}
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}
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impl From<usize> for ID {
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fn from(value: usize) -> Self {
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ID(value.to_string())
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}
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}
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2020-03-19 09:20:12 +00:00
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impl Scalar for ID {
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2020-03-01 16:59:04 +00:00
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fn type_name() -> &'static str {
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"ID"
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}
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2020-03-04 02:38:07 +00:00
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fn parse(value: &Value) -> Option<Self> {
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2020-03-01 16:59:04 +00:00
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match value {
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2020-03-03 11:15:18 +00:00
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Value::Int(n) => Some(ID(n.as_i64().unwrap().to_string())),
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2020-03-04 02:38:07 +00:00
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Value::String(s) => Some(ID(s.clone())),
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2020-03-03 11:15:18 +00:00
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_ => None,
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2020-03-01 16:59:04 +00:00
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}
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}
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2020-03-02 00:24:49 +00:00
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fn to_json(&self) -> Result<serde_json::Value> {
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2020-03-01 16:59:04 +00:00
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Ok(self.0.clone().into())
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}
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}
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2020-03-06 15:58:43 +00:00
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2020-03-09 10:05:52 +00:00
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impl_scalar_internal!(ID);
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