jsonschema-rs/jsonschema/src/keywords/dependencies.rs

117 lines
3.9 KiB
Rust

use crate::{
compilation::{compile_validators, context::CompilationContext, JSONSchema},
error::{no_error, ErrorIterator, ValidationError},
keywords::{required, CompilationResult},
paths::{InstancePath, JSONPointer},
primitive_type::PrimitiveType,
schema_node::SchemaNode,
validator::{format_key_value_validators, Validate},
};
use serde_json::{Map, Value};
pub(crate) struct DependenciesValidator {
dependencies: Vec<(String, SchemaNode)>,
}
impl DependenciesValidator {
#[inline]
pub(crate) fn compile<'a>(
schema: &'a Value,
context: &CompilationContext,
) -> CompilationResult<'a> {
if let Value::Object(map) = schema {
let keyword_context = context.with_path("dependencies");
let mut dependencies = Vec::with_capacity(map.len());
for (key, subschema) in map {
let item_context = keyword_context.with_path(key.to_string());
let s = match subschema {
Value::Array(_) => {
let validators = vec![required::compile_with_path(
subschema,
(&keyword_context.schema_path).into(),
)
.expect("The required validator compilation does not return None")?];
SchemaNode::new_from_array(&keyword_context, validators)
}
_ => compile_validators(subschema, &item_context)?,
};
dependencies.push((key.clone(), s))
}
Ok(Box::new(DependenciesValidator { dependencies }))
} else {
Err(ValidationError::single_type_error(
JSONPointer::default(),
context.clone().into_pointer(),
schema,
PrimitiveType::Object,
))
}
}
}
impl Validate for DependenciesValidator {
fn is_valid(&self, schema: &JSONSchema, instance: &Value) -> bool {
if let Value::Object(item) = instance {
self.dependencies
.iter()
.filter(|(property, _)| item.contains_key(property))
.all(move |(_, node)| node.is_valid(schema, instance))
} else {
true
}
}
#[allow(clippy::needless_collect)]
fn validate<'a, 'b>(
&self,
schema: &'a JSONSchema,
instance: &'b Value,
instance_path: &InstancePath,
) -> ErrorIterator<'b> {
if let Value::Object(item) = instance {
let errors: Vec<_> = self
.dependencies
.iter()
.filter(|(property, _)| item.contains_key(property))
.flat_map(move |(_, node)| node.validate(schema, instance, instance_path))
.collect();
// TODO. custom error message for "required" case
Box::new(errors.into_iter())
} else {
no_error()
}
}
}
impl core::fmt::Display for DependenciesValidator {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"dependencies: {{{}}}",
format_key_value_validators(&self.dependencies)
)
}
}
#[inline]
pub(crate) fn compile<'a>(
_: &'a Map<String, Value>,
schema: &'a Value,
context: &CompilationContext,
) -> Option<CompilationResult<'a>> {
Some(DependenciesValidator::compile(schema, context))
}
#[cfg(test)]
mod tests {
use crate::tests_util;
use serde_json::{json, Value};
use test_case::test_case;
#[test_case(&json!({"dependencies": {"bar": ["foo"]}}), &json!({"bar": 1}), "/dependencies")]
#[test_case(&json!({"dependencies": {"bar": {"type": "string"}}}), &json!({"bar": 1}), "/dependencies/bar/type")]
fn schema_path(schema: &Value, instance: &Value, expected: &str) {
tests_util::assert_schema_path(schema, instance, expected)
}
}