Struct ConfigSchema 

pub struct ConfigSchema { /* private fields */ }

配置 schema：多字段校验定义

Implementations

impl ConfigSchema

pub fn new() -> Self

创建空 schema

pub fn add_field(self, field: FieldSchema) -> Self

添加字段定义（链式）

pub fn field_count(&self) -> usize

字段数

pub fn validate( &self, config: &HashMap<String, String>, ) -> ConfigValidationReport

校验配置 HashMap

pub fn validate_and_fill_defaults( &self, config: &HashMap<String, String>, ) -> (HashMap<String, String>, ConfigValidationReport)

校验并填充默认值（返回新 config）

pub fn validate_env(&self) -> ConfigValidationReport

从环境变量读取配置并校验

对每个字段，先查 env var，再查默认值，最后校验。

pub fn field_names(&self) -> Vec<&str>

返回所有字段名

Trait Implementations

impl Clone for ConfigSchema

fn clone(&self) -> ConfigSchema

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ConfigSchema

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ConfigSchema

fn default() -> ConfigSchema

Returns the “default value” for a type.