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refac: reuse init variable macro

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This commit is contained in:
Dmitriy Pleshevskiy 2019-12-25 22:38:55 +03:00
parent 900c5ef2a8
commit dead8e444b
1 changed files with 15 additions and 17 deletions
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32
itconfig/src/lib.rs
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@ -407,6 +407,21 @@ macro_rules! __itconfig_impl {
#[macro_export] #[macro_export]
#[doc(hidden)] #[doc(hidden)]
macro_rules! __itconfig_variable { macro_rules! __itconfig_variable {
// Add method without default value
(
name = $name:ident,
env_name = $env_name:expr,
ty = $ty:ty,
) => {
__itconfig_variable! {
name = $name,
env_name = $env_name,
ty = $ty,
default = panic!(format!(r#"Cannot read "{}" environment variable"#,
$env_name.to_uppercase())),
}
};
// Add method with default value // Add method with default value
( (
name = $name:ident, name = $name:ident,
@ -421,23 +436,6 @@ macro_rules! __itconfig_variable {
} }
}; };
// Add method without default value
(
name = $name:ident,
env_name = $env_name:expr,
ty = $ty:ty,
) => {
pub fn $name() -> $ty {
env::var($env_name.to_uppercase())
.map(|val| EnvValue::from(val).into())
.unwrap_or_else(|_| {
panic!(format!(r#"Cannot read "{}" environment variable"#,
$env_name.to_uppercase()))
})
}
};
// Invalid syntax // Invalid syntax
($($tokens:tt)*) => { ($($tokens:tt)*) => {
__itconfig_invalid_syntax!(); __itconfig_invalid_syntax!();