177 lines
4.8 KiB
Rust
177 lines
4.8 KiB
Rust
use crate::compilation::ValidatorArena;
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use crate::{
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compilation::context::CompilationContext,
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error::{error, no_error, ErrorIterator, ValidationError},
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keywords::{helpers, CompilationResult},
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paths::{InstancePath, JSONPointer},
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primitive_type::{PrimitiveType, PrimitiveTypesBitMap},
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validator::Validate,
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};
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use serde_json::{Map, Value};
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#[derive(Debug)]
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pub(crate) struct EnumValidator {
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options: Value,
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// Types that occur in items
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types: PrimitiveTypesBitMap,
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items: Vec<Value>,
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schema_path: JSONPointer,
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}
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impl EnumValidator {
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#[inline]
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pub(crate) fn compile<'a>(
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schema: &'a Value,
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items: &'a [Value],
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schema_path: JSONPointer,
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) -> CompilationResult<'a> {
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let mut types = PrimitiveTypesBitMap::new();
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for item in items.iter() {
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types |= PrimitiveType::from(item);
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}
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Ok(Box::new(EnumValidator {
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options: schema.clone(),
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items: items.to_vec(),
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types,
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schema_path,
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}))
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}
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}
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impl Validate for EnumValidator {
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fn validate<'instance>(
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&self,
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instance: &'instance Value,
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instance_path: &InstancePath,
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) -> ErrorIterator<'instance> {
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if self.is_valid(instance) {
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no_error()
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} else {
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error(ValidationError::enumeration(
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self.schema_path.clone(),
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instance_path.into(),
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instance,
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&self.options,
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))
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}
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}
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fn is_valid(&self, instance: &Value) -> bool {
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// If the input value type is not in the types present among the enum options, then there
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// is no reason to compare it against all items - we know that
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// there are no items with such type at all
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if self.types.contains_type(PrimitiveType::from(instance)) {
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self.items.iter().any(|item| helpers::equal(instance, item))
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} else {
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false
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}
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}
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}
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impl core::fmt::Display for EnumValidator {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(
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f,
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"enum: [{}]",
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self.items
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.iter()
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.map(Value::to_string)
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.collect::<Vec<String>>()
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.join(", ")
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)
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}
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}
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#[derive(Debug)]
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pub(crate) struct SingleValueEnumValidator {
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value: Value,
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options: Value,
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schema_path: JSONPointer,
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}
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impl SingleValueEnumValidator {
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#[inline]
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pub(crate) fn compile<'a>(
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schema: &'a Value,
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value: &'a Value,
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schema_path: JSONPointer,
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) -> CompilationResult<'a> {
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Ok(Box::new(SingleValueEnumValidator {
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options: schema.clone(),
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value: value.clone(),
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schema_path,
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}))
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}
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}
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impl Validate for SingleValueEnumValidator {
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fn validate<'instance>(
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&self,
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instance: &'instance Value,
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instance_path: &InstancePath,
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) -> ErrorIterator<'instance> {
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if self.is_valid(instance) {
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no_error()
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} else {
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error(ValidationError::enumeration(
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self.schema_path.clone(),
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instance_path.into(),
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instance,
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&self.options,
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))
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}
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}
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fn is_valid(&self, instance: &Value) -> bool {
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helpers::equal(&self.value, instance)
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}
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}
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impl core::fmt::Display for SingleValueEnumValidator {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "enum: [{}]", self.value)
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}
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}
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#[inline]
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pub(crate) fn compile<'a>(
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_: &'a Map<String, Value>,
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schema: &'a Value,
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context: &CompilationContext,
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arena: &mut ValidatorArena,
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) -> Option<CompilationResult<'a>> {
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if let Value::Array(items) = schema {
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let schema_path = context.as_pointer_with("enum");
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if items.len() == 1 {
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let value = items.iter().next().expect("Vec is not empty");
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Some(SingleValueEnumValidator::compile(
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schema,
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value,
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schema_path,
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))
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} else {
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Some(EnumValidator::compile(schema, items, schema_path))
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}
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} else {
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Some(Err(ValidationError::single_type_error(
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JSONPointer::default(),
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context.clone().into_pointer(),
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schema,
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PrimitiveType::Array,
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)))
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}
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}
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#[cfg(test)]
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mod tests {
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use crate::tests_util;
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use serde_json::{json, Value};
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use test_case::test_case;
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#[test_case(&json!({"enum": [1]}), &json!(2), "/enum")]
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#[test_case(&json!({"enum": [1, 3]}), &json!(2), "/enum")]
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fn schema_path(schema: &Value, instance: &Value, expected: &str) {
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tests_util::assert_schema_path(schema, instance, expected)
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}
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}
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