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//! This module contains macros for schema validation, as it is a very
//! boilerplate-y procedure.
//!
//! Some of the macros below are repeated in every method for Validator.
macro_rules! not_bool_schema {
($schema:expr, $span:expr) => {
not_bool_schema!((), $schema, $span)
};
($ret_val:expr, $schema:expr, $span:expr) => {
match &$schema {
SchemaRef::Bool(allow_all) => {
if *allow_all {
return Ok($ret_val);
} else {
let mut errors = ErrorsInner::new();
errors.push(Error::new(None, ($span).clone(), ErrorValue::Never));
return Err(Errors(errors));
}
}
SchemaRef::Object(o) => o,
}
};
}
macro_rules! check_type {
($actual_type:ident, $schema:expr, $span:expr) => {
match &$schema.instance_type {
Some(s) => match s {
SingleOrVec::Single(single) => match &**single {
InstanceType::$actual_type => Ok(()),
_ => {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidType {
expected: s.clone(),
actual: InstanceType::$actual_type,
},
));
Err(Errors(errors))
}
},
SingleOrVec::Vec(vec) => {
if vec.iter().any(|i| *i == InstanceType::$actual_type) {
Ok(())
} else {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidType {
expected: s.clone(),
actual: InstanceType::$actual_type,
},
));
Err(Errors(errors))
}
}
},
None => {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidType {
expected: SingleOrVec::Single(Box::new(InstanceType::Object)),
actual: InstanceType::$actual_type,
},
));
Err(Errors(errors))
}
}
};
($schema:expr, $span:expr) => {
match &$schema.instance_type {
Some(s) => match s {
SingleOrVec::Single(single) => match &**single {
InstanceType::Object => Ok(()),
_ => {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidType {
expected: s.clone(),
actual: InstanceType::Object,
},
));
Err(Errors(errors))
}
},
SingleOrVec::Vec(vec) => {
if vec.iter().any(|i| *i == InstanceType::Object) {
Ok(())
} else {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidType {
expected: s.clone(),
actual: InstanceType::Object,
},
));
Err(Errors(errors))
}
}
},
None => Ok(()),
}
};
}
macro_rules! check_enum {
(bool, $value:expr, $schema:expr, $span:expr) => {
if let Some(enum_vals) = &$schema.enum_values {
let mut enum_contains = false;
for val in enum_vals {
if let Some(v) = val.as_bool() {
if v == $value {
enum_contains = true;
break;
}
}
}
if enum_contains {
Ok(())
} else {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidEnumValue {
expected: enum_vals.clone(),
},
));
Err(Errors(errors))
}
} else {
Ok(())
}
};
(int, $value:expr, $schema:expr, $span:expr) => {
if let Some(enum_vals) = &$schema.enum_values {
let mut errors = ErrorsInner::new();
let mut enum_contains = false;
for val in enum_vals {
if let Some(v) = val.as_i64() {
if v == $value as i64 {
enum_contains = true;
break;
}
}
if let Some(v) = val.as_u64() {
if v == $value as u64 {
enum_contains = true;
break;
}
}
}
if enum_contains {
Ok(())
} else {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidEnumValue {
expected: enum_vals.clone(),
},
));
Err(Errors(errors))
}
} else {
Ok(())
}
};
(float, $value:expr, $schema:expr, $span:expr) => {
if let Some(enum_vals) = &$schema.enum_values {
let mut errors = ErrorsInner::new();
let mut enum_contains = false;
for val in enum_vals {
if let Some(v) = val.as_f64() {
if f64::abs(v - $value as f64) < core::f64::EPSILON {
enum_contains = true;
break;
}
}
}
if enum_contains {
Ok(())
} else {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidEnumValue {
expected: enum_vals.clone(),
},
));
Err(Errors(errors))
}
} else {
Ok(())
}
};
(str, $value:expr, $schema:expr, $span:expr) => {
if let Some(enum_vals) = &$schema.enum_values {
let mut enum_contains = false;
for val in enum_vals {
if let Some(v) = val.as_str() {
if v == $value {
enum_contains = true;
break;
}
}
}
if enum_contains {
Ok(())
} else {
let mut errors = ErrorsInner::new();
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidEnumValue {
expected: enum_vals.clone(),
},
));
Err(Errors(errors))
}
} else {
Ok(())
}
};
}
macro_rules! check_number {
($value:expr, $schema:expr, $span:expr) => {
if let Some(n) = &$schema.number {
let mut errors = ErrorsInner::new();
let mut number_err = false;
if let Some(m) = n.multiple_of {
if m != 0f64 && $value as f64 % m != 0f64 {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::NotMultipleOf { multiple_of: m },
));
number_err = true;
}
}
if let Some(min) = n.minimum {
if ($value as f64) < min {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::LessThanExpected {
min,
exclusive: false,
},
));
number_err = true;
}
}
if let Some(min) = n.exclusive_minimum {
if ($value as f64) <= min {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::LessThanExpected {
min,
exclusive: true,
},
));
number_err = true;
}
}
if let Some(max) = n.maximum {
if ($value as f64) > max {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::MoreThanExpected {
max,
exclusive: false,
},
));
number_err = true;
}
}
if let Some(max) = n.exclusive_maximum {
if ($value as f64) >= max {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::MoreThanExpected {
max,
exclusive: true,
},
));
number_err = true;
}
}
if !number_err {
Ok(())
} else {
Err(Errors(errors))
}
} else {
Ok(())
};
};
}
// TODO format
macro_rules! check_string {
($value:expr, $schema:expr, $span:expr) => {
if let Some(s) = &$schema.string {
let mut errors = ErrorsInner::new();
let mut string_err = false;
if let Some(p) = &s.pattern {
let re = regex::Regex::new(&*p).map_err(|error| {
Errors::one(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::InvalidSchema(InvalidSchema::InvalidPattern {
pattern: p.clone(),
error,
}),
))
})?;
if !re.is_match($value) {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::NoPatternMatch { pattern: p.clone() },
));
string_err = true;
}
if let Some(max_length) = s.max_length {
if $value.chars().count() > max_length as usize {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::TooLong { max_length },
));
string_err = true;
}
}
if let Some(min_length) = s.min_length {
if $value.chars().count() < min_length as usize {
errors.push(Error::new(
$schema.metadata.clone(),
$span.clone(),
ErrorValue::TooShort { min_length },
));
string_err = true;
}
}
}
if !string_err {
Ok(())
} else {
Err(Errors(errors))
}
} else {
Ok(())
}
};
}