41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
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use rhai::{plugin::*, Engine, Scope};
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#[export_module]
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pub mod general_kenobi {
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/// Returns a string where `hello there `
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/// is repeated `n` times.
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pub fn hello_there(n: i64) -> String {
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use std::convert::TryInto;
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"hello there ".repeat(n.try_into().unwrap())
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}
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}
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fn main() {
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let mut engine = Engine::new();
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let mut scope = Scope::new();
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// This variable will also show up in the definitions,
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// since it will be part of the scope.
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scope.push("hello_there", "hello there");
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engine.register_static_module("general_kenobi", exported_module!(general_kenobi).into());
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// Custom operators also show up in definitions.
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engine.register_custom_operator("minus", 100).unwrap();
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engine.register_fn("minus", |a: i64, b: i64| a - b);
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engine
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.eval_with_scope::<()>(
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&mut scope,
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r#"
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hello_there = general_kenobi::hello_there(4 minus 2);
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"#,
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)
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.unwrap();
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engine
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.definitions_with_scope(&scope)
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.write_to_dir("examples/definitions/.rhai/definitions")
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.unwrap();
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}
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