31 lines
872 B
Rust
31 lines
872 B
Rust
use crate::{Result, GQLScalar, Value};
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macro_rules! impl_integer_scalars {
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($($ty:ty),*) => {
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$(
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impl GQLScalar for $ty {
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fn type_name() -> &'static str {
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"Int"
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}
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fn description() -> Option<&'static str> {
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Some("The `Int` scalar type represents non-fractional signed whole numeric values. Int can represent values between -(2^31) and 2^31 - 1.")
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}
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fn parse(value: &Value) -> Option<Self> {
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match value {
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Value::Int(n) => Some(n.as_i64().unwrap() as Self),
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_ => None
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}
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}
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fn to_json(&self) -> Result<serde_json::Value> {
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Ok((*self).into())
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}
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}
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)*
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};
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}
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impl_integer_scalars!(i8, i16, i32, i64, u8, u16, u32, u64);
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