Struct Node 

pub struct Node<'a> { /* private fields */ }

A validator node: the map of options plus what’s needed to read them and recurse.

Passed to each Registry constructor. Custom constructors use its readers (opt_int, flag, child, …) to pull options and build nested validators.

Implementations

impl Node<'_>

pub fn error(&self, kind: SchemaErrorKind) -> SchemaError

Build an error anchored at this node.

pub fn req_str(&self, field: &str) -> Result<&str, SchemaError>

Read a required string field.

pub fn opt_str(&self, field: &str) -> Result<Option<&str>, SchemaError>

Read an optional string field.

pub fn opt_int(&self, field: &str) -> Result<Option<isize>, SchemaError>

Read an optional integer field.

pub fn opt_usize(&self, field: &str) -> Result<Option<usize>, SchemaError>

Read an optional non-negative integer field as a usize.

pub fn opt_f64(&self, field: &str) -> Result<Option<f64>, SchemaError>

Read an optional number field (integer or float) as an f64.

pub fn opt_bool(&self, field: &str) -> Result<Option<bool>, SchemaError>

Read an optional boolean field.

pub fn flag(&self, field: &str) -> Result<bool, SchemaError>

Read a boolean field, defaulting to false when absent.

pub fn values(&self, field: &str) -> Result<Vec<Value>, SchemaError>

Read a list field as raw values (used by enum). Absent → empty.

pub fn str_list(&self, field: &str) -> Result<Vec<String>, SchemaError>

Read a list-of-strings field (used by path.extensions, url.schemes). Absent → empty.

pub fn child(&self, field: &str) -> Result<Box<dyn Validator>, SchemaError>

Build a required nested validator from a sub-schema field.

pub fn opt_child( &self, field: &str, ) -> Result<Option<Box<dyn Validator>>, SchemaError>

Build an optional nested validator from a sub-schema field.