jsonschema-rs/src/keywords/one_of.rs

120 lines
4.1 KiB
Rust

use crate::{
compilation::{compile_validators, context::CompilationContext, JSONSchema},
error::{error, no_error, CompilationError, ErrorIterator, ValidationError},
keywords::{format_vec_of_validators, CompilationResult, Validators},
validator::Validate,
};
use serde_json::{Map, Value};
pub(crate) struct OneOfValidator {
schemas: Vec<Validators>,
}
impl OneOfValidator {
#[inline]
pub(crate) fn compile(schema: &Value, context: &CompilationContext) -> CompilationResult {
if let Value::Array(items) = schema {
let mut schemas = Vec::with_capacity(items.len());
for item in items {
schemas.push(compile_validators(item, context)?)
}
return Ok(Box::new(OneOfValidator { schemas }));
}
Err(CompilationError::SchemaError)
}
}
macro_rules! one_of_impl_is_valid {
($method_suffix:tt, $instance_type: ty) => {
paste::item! {
#[inline]
fn [<is_valid_ $method_suffix>](
&self,
schema: &JSONSchema,
instance: &Value,
instance_value: $instance_type,
) -> bool {
let mut valid_schema_iterator = self.schemas
.iter()
.filter(|validators| {
validators
.iter()
.all(|validator| validator.[<is_valid_ $method_suffix>](schema, instance, instance_value))
});
if valid_schema_iterator.next().is_some() {
// If one schema is valid we need to ensure that there are no other valid schemas
valid_schema_iterator.next().is_none()
} else {
false
}
}
}
};
}
macro_rules! one_of_impl_validate {
($method_suffix:tt, $instance_type: ty) => {
paste::item! {
#[inline]
fn [<validate_ $method_suffix>]<'a>(
&self,
schema: &'a JSONSchema,
instance: &'a Value,
instance_value: $instance_type,
) -> ErrorIterator<'a> {
let mut valid_schema_iterator = self.schemas
.iter()
.filter(|validators| {
validators
.iter()
.all(|validator| validator.[<is_valid_ $method_suffix>](schema, instance, instance_value))
});
if valid_schema_iterator.next().is_some() {
// If one schema is valid we need to ensure that there are no other valid schemas
if valid_schema_iterator.next().is_none() {
no_error()
} else {
error(ValidationError::one_of_multiple_valid(instance))
}
} else {
error(ValidationError::one_of_not_valid(instance))
}
}
}
};
}
impl Validate for OneOfValidator {
one_of_impl_is_valid!(array, &[Value]);
one_of_impl_is_valid!(boolean, bool);
one_of_impl_is_valid!(null, ());
one_of_impl_is_valid!(number, f64);
one_of_impl_is_valid!(object, &Map<String, Value>);
one_of_impl_is_valid!(signed_integer, i64);
one_of_impl_is_valid!(string, &str);
one_of_impl_is_valid!(unsigned_integer, u64);
one_of_impl_validate!(array, &[Value]);
one_of_impl_validate!(boolean, bool);
one_of_impl_validate!(null, ());
one_of_impl_validate!(number, f64);
one_of_impl_validate!(object, &Map<String, Value>);
one_of_impl_validate!(signed_integer, i64);
one_of_impl_validate!(string, &str);
one_of_impl_validate!(unsigned_integer, u64);
}
impl ToString for OneOfValidator {
fn to_string(&self) -> String {
format!("oneOf: [{}]", format_vec_of_validators(&self.schemas))
}
}
#[inline]
pub(crate) fn compile(
_: &Map<String, Value>,
schema: &Value,
context: &CompilationContext,
) -> Option<CompilationResult> {
Some(OneOfValidator::compile(schema, context))
}