50 lines
1.4 KiB
Rust
50 lines
1.4 KiB
Rust
use crate::func::native::SendSync;
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use crate::{Engine, EvalAltResult, Module, Position, Shared, AST};
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#[cfg(feature = "no_std")]
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use std::prelude::v1::*;
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mod collection;
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mod dummy;
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mod file;
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mod stat;
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pub use collection::ModuleResolversCollection;
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pub use dummy::DummyModuleResolver;
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#[cfg(not(feature = "no_std"))]
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#[cfg(not(any(target_arch = "wasm32", target_arch = "wasm64")))]
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pub use file::FileModuleResolver;
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pub use stat::StaticModuleResolver;
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/// Trait that encapsulates a module resolution service.
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pub trait ModuleResolver: SendSync {
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/// Resolve a module based on a path string.
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fn resolve(
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&self,
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engine: &Engine,
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source_path: Option<&str>,
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path: &str,
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pos: Position,
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) -> Result<Shared<Module>, Box<EvalAltResult>>;
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/// Resolve an `AST` based on a path string.
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///
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/// Returns [`None`] (default) if such resolution is not supported
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/// (e.g. if the module is Rust-based).
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///
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/// # WARNING - Low Level API
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///
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/// Override the default implementation of this method if the module resolver
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/// serves modules based on compiled Rhai scripts.
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#[allow(unused_variables)]
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#[must_use]
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fn resolve_ast(
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&self,
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engine: &Engine,
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source_path: Option<&str>,
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path: &str,
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pos: Position,
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) -> Option<Result<AST, Box<EvalAltResult>>> {
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None
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}
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}
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