wasmtime_cli/commands/
wast.rs

1//! The module that implements the `wasmtime wast` command.
2
3use anyhow::{Context as _, Result};
4use clap::Parser;
5use std::path::PathBuf;
6use wasmtime::{Engine, Store};
7use wasmtime_cli_flags::CommonOptions;
8use wasmtime_wast::{SpectestConfig, WastContext};
9
10/// Runs a WebAssembly test script file
11#[derive(Parser)]
12pub struct WastCommand {
13    #[command(flatten)]
14    common: CommonOptions,
15
16    /// The path of the WebAssembly test script to run
17    #[arg(required = true, value_name = "SCRIPT_FILE")]
18    scripts: Vec<PathBuf>,
19}
20
21impl WastCommand {
22    /// Executes the command.
23    pub fn execute(mut self) -> Result<()> {
24        self.common.init_logging()?;
25
26        let mut config = self.common.config(None)?;
27        config.async_support(true);
28        let mut store = Store::new(&Engine::new(&config)?, ());
29        if let Some(fuel) = self.common.wasm.fuel {
30            store.set_fuel(fuel)?;
31        }
32        if let Some(true) = self.common.wasm.epoch_interruption {
33            store.epoch_deadline_trap();
34            store.set_epoch_deadline(1);
35        }
36        let mut wast_context = WastContext::new(store, wasmtime_wast::Async::Yes);
37
38        wast_context
39            .register_spectest(&SpectestConfig {
40                use_shared_memory: true,
41                suppress_prints: false,
42            })
43            .expect("error instantiating \"spectest\"");
44
45        for script in self.scripts.iter() {
46            wast_context
47                .run_file(script)
48                .with_context(|| format!("failed to run script file '{}'", script.display()))?
49        }
50
51        Ok(())
52    }
53}
wasmtime_cli/commands/wast.rs

wasmtime_cli/commands/
wast.rs
