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Add flag completions (#817)

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JT 2022-01-22 16:18:31 -05:00 committed by GitHub
parent 89d852f76c
commit 310ecb79b6
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1 changed files with 26 additions and 1 deletions
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27
crates/nu-cli/src/completions.rs
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@ -1,7 +1,7 @@
use nu_engine::eval_block;
use nu_parser::{flatten_expression, parse};
use nu_protocol::{
ast::Statement,
ast::{Expr, Statement},
engine::{EngineState, Stack, StateWorkingSet},
PipelineData, Span,
};
@ -196,6 +196,31 @@ impl NuCompleter {
offset,
);
}
if prefix.starts_with(b"-") {
// this might be a flag, let's see
if let Expr::Call(call) = &expr.expr {
let decl = working_set.get_decl(call.decl_id);
let sig = decl.signature();
let mut output = vec![];
for named in &sig.named {
let mut named = named.long.as_bytes().to_vec();
named.insert(0, b'-');
named.insert(0, b'-');
if named.starts_with(prefix) {
output.push((
reedline::Span {
start: flat.0.start - offset,
end: flat.0.end - offset,
},
String::from_utf8_lossy(&named).to_string(),
));
}
}
return output;
}
}
match &flat.1 {
nu_parser::FlatShape::Custom(custom_completion) => {