42 lines
860 B
Rust
42 lines
860 B
Rust
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use darling::{FromMeta, Result};
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use proc_macro2::Span;
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use syn::{LitStr, Path};
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#[derive(Debug)]
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pub struct ModulePrefix {
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literal: LitStr,
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}
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impl ModulePrefix {
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pub fn new(path: &str) -> Self {
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let literal = LitStr::new(path, Span::call_site());
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Self { literal }
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}
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pub fn append(&self, component: &str) -> ModulePrefix {
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let mut lit = self.literal().value();
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lit.push_str(component);
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Self::new(lit.as_str())
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}
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pub fn path(&self) -> Path {
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self.literal.parse().unwrap()
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}
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pub fn literal(&self) -> &LitStr {
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&self.literal
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}
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}
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impl FromMeta for ModulePrefix {
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fn from_string(value: &str) -> Result<Self> {
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Ok(ModulePrefix::new(value))
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}
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}
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impl Default for ModulePrefix {
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fn default() -> ModulePrefix {
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ModulePrefix::new("::")
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}
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}
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