greentic_runner/gen_bindings/
component.rs

1use anyhow::{Context, Result};
2use wasmparser::{Parser, Payload};
3
4#[derive(Debug, Default, Clone)]
5pub struct ComponentFeatures {
6    pub http: bool,
7    pub secrets: bool,
8    pub filesystem: bool,
9}
10
11pub fn analyze_component(path: &std::path::Path) -> Result<ComponentFeatures> {
12    let wasm = std::fs::read(path)
13        .with_context(|| format!("failed to read component {}", path.display()))?;
14    let mut features = ComponentFeatures::default();
15    for payload in Parser::new(0).parse_all(&wasm) {
16        if let Payload::ImportSection(section) = payload? {
17            for import in section {
18                let import = import?;
19                match import.module {
20                    "greentic:host/http-v1" => features.http = true,
21                    "greentic:host/secrets-v1" => features.secrets = true,
22                    "greentic:host/filesystem-v1" => features.filesystem = true,
23                    "greentic:host/kv-v1" => features.filesystem = true,
24                    _ => (),
25                }
26            }
27        }
28    }
29    Ok(features)
30}