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configuration_template_initializer.rs
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configuration_template_initializer.rs
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macro_rules! my_initialize {
($relative_path:literal, $absolute_path:literal) => {
Asset {
path_length: $relative_path.len(),
relative_path: $relative_path,
contents: include_str!($absolute_path),
get_first_word: {
fn get() -> Option<&'static str> {
include_str!($absolute_path).split_whitespace().next()
}
get
},
version: if cfg!(debug_assertions) {
"debug"
} else {
"release"
},
}
};
}
#[iftree::include_file_tree(
"
paths = '/examples/assets/**'
template.initializer = 'my_initialize'
"
)]
pub struct Asset {
path_length: usize,
relative_path: &'static str,
contents: &'static str,
get_first_word: fn() -> Option<&'static str>,
version: &'static str,
}
fn main() {
use base::examples::assets;
assert_eq!(assets::CREDITS_MD.path_length, 26);
assert_eq!(
assets::CREDITS_MD.relative_path,
"examples/assets/credits.md",
);
assert_eq!(assets::CREDITS_MD.contents, "Boo Far\n");
assert_eq!((assets::CREDITS_MD.get_first_word)(), Some("Boo"));
if cfg!(debug_assertions) {
assert_eq!(assets::CREDITS_MD.version, "debug");
} else {
assert_eq!(assets::CREDITS_MD.version, "release");
}
}