186da4d725
* WIP fixing captures * small fix * WIP * Rewrite to proof-of-concept better parse_def * Add missing file * Finish capture refactor * Fix tests * Add more tests
60 lines
1.6 KiB
Rust
60 lines
1.6 KiB
Rust
use std::time::Instant;
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use nu_engine::{eval_block, CallExt};
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{CaptureBlock, Command, EngineState, Stack};
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use nu_protocol::{Category, IntoPipelineData, PipelineData, Signature, SyntaxShape, Value};
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#[derive(Clone)]
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pub struct Benchmark;
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impl Command for Benchmark {
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fn name(&self) -> &str {
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"benchmark"
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}
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fn usage(&self) -> &str {
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"Time the running time of a block"
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}
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fn signature(&self) -> nu_protocol::Signature {
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Signature::build("benchmark")
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.required(
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"block",
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SyntaxShape::Block(Some(vec![])),
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"the block to run",
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)
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.category(Category::System)
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}
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fn run(
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&self,
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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_input: PipelineData,
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) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
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let capture_block: CaptureBlock = call.req(engine_state, stack, 0)?;
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let block = engine_state.get_block(capture_block.block_id);
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let mut stack = stack.captures_to_stack(&capture_block.captures);
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let start_time = Instant::now();
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eval_block(
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engine_state,
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&mut stack,
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block,
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PipelineData::new(call.head),
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)?
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.into_value(call.head);
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let end_time = Instant::now();
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let output = Value::Duration {
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val: (end_time - start_time).as_nanos() as i64,
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span: call.head,
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};
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Ok(output.into_pipeline_data())
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}
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}
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