forked from extern/nushell
60 lines
1.7 KiB
Rust
60 lines
1.7 KiB
Rust
use std::{cell::RefCell, rc::Rc};
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use nu_protocol::{
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engine::{EngineState, StateWorkingSet},
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Signature, SyntaxShape,
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};
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use crate::{Alias, Benchmark, BuildString, Def, Each, For, If, Length, Let, LetEnv};
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pub fn create_default_context() -> Rc<RefCell<EngineState>> {
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let engine_state = Rc::new(RefCell::new(EngineState::new()));
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let delta = {
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let engine_state = engine_state.borrow();
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let mut working_set = StateWorkingSet::new(&*engine_state);
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let sig =
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Signature::build("where").required("cond", SyntaxShape::RowCondition, "condition");
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working_set.add_decl(sig.predeclare());
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working_set.add_decl(Box::new(If));
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working_set.add_decl(Box::new(Let));
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working_set.add_decl(Box::new(LetEnv));
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working_set.add_decl(Box::new(Alias));
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working_set.add_decl(Box::new(BuildString));
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working_set.add_decl(Box::new(Def));
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working_set.add_decl(Box::new(For));
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working_set.add_decl(Box::new(Each));
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working_set.add_decl(Box::new(Benchmark));
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working_set.add_decl(Box::new(Length));
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let sig = Signature::build("exit");
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working_set.add_decl(sig.predeclare());
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let sig = Signature::build("vars");
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working_set.add_decl(sig.predeclare());
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let sig = Signature::build("decls");
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working_set.add_decl(sig.predeclare());
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let sig = Signature::build("blocks");
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working_set.add_decl(sig.predeclare());
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let sig = Signature::build("stack");
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working_set.add_decl(sig.predeclare());
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working_set.render()
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};
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{
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EngineState::merge_delta(&mut *engine_state.borrow_mut(), delta);
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}
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engine_state
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}
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