Struct Validator 

pub struct Validator { /* private fields */ }

Validator for query expressions and field/value semantics.

Implementations

impl Validator

pub fn new(registry: FieldRegistry) -> Self

Create a new validator with the given field registry

pub fn with_options(registry: FieldRegistry, options: ValidationOptions) -> Self

Create a new validator with options

pub fn validate(&self, expr: &Expr) -> Result<(), ValidationError>

Validate a query expression

Returns Ok(()) if the expression is valid, or a ValidationError if validation fails.

Errors

Returns ValidationError when the expression uses unknown fields, invalid operators, or mismatched value types.

pub fn normalize_expr(&self, expr: &Expr) -> Result<Expr, ValidationError>

Normalize field names using fuzzy options (when enabled) and return a new expression tree.

Errors

Returns ValidationError when normalization fails or fuzzy correction is unsafe.

pub fn detect_contradictions(&self, expr: &Expr) -> Vec<ContradictionWarning>

Detect contradictions in the query

Returns warnings for impossible queries, such as:

• kind:function AND kind:class (same field with different values)
• async:true AND async:false (boolean contradiction)