188 lines
5.5 KiB
Rust
188 lines
5.5 KiB
Rust
use crate::{
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compilation::{context::CompilationContext, JSONSchema},
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error::{error, no_error, ErrorIterator, ValidationError},
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keywords::CompilationResult,
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paths::{InstancePath, JSONPointer},
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primitive_type::PrimitiveType,
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validator::Validate,
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};
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use serde_json::{Map, Value};
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pub(crate) struct RequiredValidator {
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required: Vec<String>,
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schema_path: JSONPointer,
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}
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impl RequiredValidator {
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#[inline]
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pub(crate) fn compile(items: &[Value], schema_path: JSONPointer) -> CompilationResult {
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let mut required = Vec::with_capacity(items.len());
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for item in items {
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match item {
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Value::String(string) => required.push(string.clone()),
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_ => {
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return Err(ValidationError::single_type_error(
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JSONPointer::default(),
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schema_path,
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item,
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PrimitiveType::String,
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))
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}
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}
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}
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Ok(Box::new(RequiredValidator {
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required,
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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 RequiredValidator {
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::Object(item) = instance {
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self.required
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.iter()
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.all(|property_name| item.contains_key(property_name))
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} else {
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true
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}
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}
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fn validate<'a, 'b>(
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&self,
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_: &'a JSONSchema,
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instance: &'b Value,
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instance_path: &InstancePath,
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) -> ErrorIterator<'b> {
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if let Value::Object(item) = instance {
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let mut errors = vec![];
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for property_name in &self.required {
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if !item.contains_key(property_name) {
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errors.push(ValidationError::required(
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self.schema_path.clone(),
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instance_path.into(),
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instance,
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// Value enum is needed for proper string escaping
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Value::String(property_name.clone()),
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));
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}
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}
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if !errors.is_empty() {
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return Box::new(errors.into_iter());
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}
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}
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no_error()
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}
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}
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impl core::fmt::Display for RequiredValidator {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "required: [{}]", self.required.join(", "))
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}
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}
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pub(crate) struct SingleItemRequiredValidator {
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value: String,
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schema_path: JSONPointer,
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}
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impl SingleItemRequiredValidator {
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#[inline]
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pub(crate) fn compile(value: &str, schema_path: JSONPointer) -> CompilationResult {
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Ok(Box::new(SingleItemRequiredValidator {
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value: value.to_string(),
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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 SingleItemRequiredValidator {
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fn validate<'a, 'b>(
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&self,
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schema: &'a JSONSchema,
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instance: &'b Value,
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instance_path: &InstancePath,
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) -> ErrorIterator<'b> {
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if !self.is_valid(schema, instance) {
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return error(ValidationError::required(
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self.schema_path.clone(),
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instance_path.into(),
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instance,
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// Value enum is needed for proper string escaping
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Value::String(self.value.clone()),
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));
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}
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no_error()
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}
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::Object(item) = instance {
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item.contains_key(&self.value)
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} else {
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true
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}
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}
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}
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impl core::fmt::Display for SingleItemRequiredValidator {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "required: [{}]", 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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) -> Option<CompilationResult<'a>> {
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let schema_path = context.as_pointer_with("required");
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compile_with_path(schema, schema_path)
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}
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#[inline]
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pub(crate) fn compile_with_path(
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schema: &Value,
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schema_path: JSONPointer,
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) -> Option<CompilationResult> {
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// IMPORTANT: If this function will ever return `None`, adjust `dependencies.rs` accordingly
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match schema {
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Value::Array(items) => {
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if items.len() == 1 {
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let item = &items[0];
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if let Value::String(item) = item {
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Some(SingleItemRequiredValidator::compile(item, schema_path))
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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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schema_path,
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item,
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PrimitiveType::String,
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)))
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}
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} else {
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Some(RequiredValidator::compile(items, schema_path))
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}
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}
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_ => Some(Err(ValidationError::single_type_error(
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JSONPointer::default(),
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schema_path,
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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!({"required": ["a"]}), &json!({}), "/required")]
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#[test_case(&json!({"required": ["a", "b"]}), &json!({}), "/required")]
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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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