49 lines
1.4 KiB
Rust
49 lines
1.4 KiB
Rust
use rhai::packages::{Package, StandardPackage};
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use rhai::{Engine, EvalAltResult, Module, Scope, INT};
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#[test]
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fn test_packages() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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let ast = engine.compile("x")?;
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let std_pkg = StandardPackage::new();
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let make_call = |x: INT| -> Result<INT, Box<EvalAltResult>> {
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// Create a raw Engine - extremely cheap.
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let mut engine = Engine::new_raw();
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// Load packages - cheap.
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engine.load_package(std_pkg.get());
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// Create custom scope - cheap.
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let mut scope = Scope::new();
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// Push variable into scope - relatively cheap.
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scope.push("x", x);
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// Evaluate script.
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engine.eval_ast_with_scope::<INT>(&mut scope, &ast)
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};
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assert_eq!(make_call(42)?, 42);
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Ok(())
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}
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#[cfg(not(feature = "no_function"))]
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#[cfg(not(feature = "no_module"))]
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#[test]
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fn test_packages_with_script() -> Result<(), Box<EvalAltResult>> {
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let mut engine = Engine::new();
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let ast = engine.compile("fn foo(x) { x + 1 } fn bar(x) { foo(x) + 1 }")?;
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let module = Module::eval_ast_as_new(Scope::new(), &ast, false, &engine)?;
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engine.load_package(module);
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assert_eq!(engine.eval::<INT>("foo(41)")?, 42);
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let module = Module::eval_ast_as_new(Scope::new(), &ast, true, &engine)?;
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engine.load_package(module);
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assert_eq!(engine.eval::<INT>("bar(40)")?, 42);
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Ok(())
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}
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