7 files changed, 199 insertions, 0 deletions
diff --git a/crates/cli/src/cmd/compile.rs b/crates/cli/src/cmd/compile.rs
new file mode 100644
index 0000000..93e38d5
--- /dev/null
+++ b/crates/cli/src/cmd/compile.rs
@@ -0,0 +1,15 @@
+use eyre::Result;
+
+use crate::cli::CompileArgs;
+use crate::load::{default_twasm_output_path, load_compilable_module, write_output_bytes};
+
+pub fn run(args: CompileArgs) -> Result<()> {
+    let module = load_compilable_module(&args.input)?;
+    let twasm = module.serialize_twasm()?;
+    let output = match args.output {
+        Some(output) => output,
+        None => default_twasm_output_path(&args.input)?,
+    };
+
+    write_output_bytes(&output, &twasm, args.force)
+}
diff --git a/crates/cli/src/cmd/completion.rs b/crates/cli/src/cmd/completion.rs
new file mode 100644
index 0000000..5815f57
--- /dev/null
+++ b/crates/cli/src/cmd/completion.rs
@@ -0,0 +1,12 @@
+use std::io;
+
+use clap::CommandFactory;
+use eyre::Result;
+
+use crate::cli::{Cli, CompletionArgs};
+
+pub fn run(args: CompletionArgs) -> Result<()> {
+    let mut cmd = Cli::command();
+    clap_complete::generate(args.shell, &mut cmd, "tinywasm", &mut io::stdout());
+    Ok(())
+}
diff --git a/crates/cli/src/cmd/dump.rs b/crates/cli/src/cmd/dump.rs
new file mode 100644
index 0000000..78fb28b
--- /dev/null
+++ b/crates/cli/src/cmd/dump.rs
@@ -0,0 +1,71 @@
+use anstream::println;
+use eyre::Result;
+use owo_colors::OwoColorize;
+use tinywasm::types::{ExternalKind, ImportKind};
+
+use crate::cli::ModuleInputArgs;
+use crate::load::load_module;
+
+pub fn run(args: ModuleInputArgs) -> Result<()> {
+    let loaded = load_module(&args.module)?;
+    let module = loaded.module;
+
+    let imported_func_count =
+        module.imports.iter().filter(|import| matches!(import.kind, ImportKind::Function(_))).count() as u32;
+
+    for (func_idx, func) in module.funcs.iter().enumerate() {
+        let global_idx = imported_func_count + func_idx as u32;
+
+        let exports = module
+            .exports
+            .iter()
+            .filter(|export| export.kind == ExternalKind::Func && export.index == global_idx)
+            .map(|export| export.name.as_ref())
+            .collect::<Vec<_>>();
+
+        let header = format!("func[{func_idx}]").blue().bold().to_string();
+        if exports.is_empty() {
+            println!("{header}");
+        } else {
+            println!("{header} {}", format!("exports={}", format!("{exports:?}").cyan()).bright_black());
+        }
+
+        for (ip, instr) in func.instructions.iter().enumerate() {
+            let instr = print_instr(instr);
+            println!("  {}: {}", print_ip(ip), instr);
+        }
+        println!();
+    }
+
+    Ok(())
+}
+
+fn print_ip(ip: usize) -> String {
+    let s = format!("{ip:04}");
+    let first_non_zero = s.find(|c| c != '0').unwrap_or(s.len() - 1);
+
+    format!(
+        "{}{}",
+        &s[..first_non_zero].to_string().bright_black().dimmed(),
+        &s[first_non_zero..].to_string().bright_black()
+    )
+}
+
+fn print_instr(instr: &tinywasm::types::Instruction) -> String {
+    let instr = format!("{instr:?}");
+    let Some(split) = instr.find(['(', ' ', '{']) else {
+        return instr.bold().to_string();
+    };
+
+    let (name, rest) = instr.split_at(split);
+
+    let rest = rest
+        .replace('(', &"(".bright_black().to_string())
+        .replace(')', &")".bright_black().to_string())
+        .replace('{', &"{".bright_black().to_string())
+        .replace('}', &"}".bright_black().to_string())
+        .replace(',', &",".bright_black().to_string())
+        .replace(':', &":".bright_black().to_string());
+
+    format!("{}{}", name.bold(), rest)
+}
diff --git a/crates/cli/src/cmd/inspect.rs b/crates/cli/src/cmd/inspect.rs
new file mode 100644
index 0000000..ea2cec7
--- /dev/null
+++ b/crates/cli/src/cmd/inspect.rs
@@ -0,0 +1,35 @@
+use eyre::Result;
+
+use crate::cli::ModuleInputArgs;
+use crate::load::load_module;
+use crate::output::{format_export_type, format_import_type};
+use anstream::println;
+use owo_colors::OwoColorize;
+
+pub fn run(args: ModuleInputArgs) -> Result<()> {
+    let loaded = load_module(&args.module)?;
+    let module = loaded.module;
+
+    println!("{}", "Imports".bold());
+    let mut import_count = 0usize;
+    for import in module.imports() {
+        import_count += 1;
+        println!("  {}.{}: {}", import.module.blue(), import.name.cyan(), format_import_type(import.ty).yellow());
+    }
+    if import_count == 0 {
+        println!("  {}", "(none)".yellow());
+    }
+
+    println!();
+    println!("{}", "Exports".bold());
+    let mut export_count = 0usize;
+    for export in module.exports() {
+        export_count += 1;
+        println!("  {}: {}", export.name.green(), format_export_type(export.ty).yellow());
+    }
+    if export_count == 0 {
+        println!("  {}", "(none)".yellow());
+    }
+
+    Ok(())
+}
diff --git a/crates/cli/src/cmd/mod.rs b/crates/cli/src/cmd/mod.rs
new file mode 100644
index 0000000..0861af2
--- /dev/null
+++ b/crates/cli/src/cmd/mod.rs
@@ -0,0 +1,7 @@
+pub mod compile;
+pub mod completion;
+pub mod dump;
+pub mod inspect;
+pub mod run;
+#[cfg(feature = "wast")]
+pub mod wast;
diff --git a/crates/cli/src/cmd/run.rs b/crates/cli/src/cmd/run.rs
new file mode 100644
index 0000000..b2f5e03
--- /dev/null
+++ b/crates/cli/src/cmd/run.rs
@@ -0,0 +1,47 @@
+use eyre::{Result, bail};
+use tinywasm::types::ExportType;
+use tinywasm::{ModuleInstance, Store};
+
+use crate::cli::RunArgs;
+use crate::load::load_module;
+use crate::output::print_results;
+use crate::value_parse::parse_invocation_args;
+
+pub fn run(args: RunArgs) -> Result<()> {
+    let module_path = args.module.as_deref().ok_or_else(|| eyre::eyre!("missing module path"))?;
+    let loaded = load_module(module_path)?;
+    let mut store = Store::new(args.engine.build_engine()?);
+    let instance = ModuleInstance::instantiate_no_start(&mut store, &loaded.module, None)?;
+
+    match args.invoke.as_deref() {
+        Some(export) => {
+            if loaded.module.start_func.is_some() {
+                let _ = instance.start(&mut store)?;
+            }
+
+            let func_ty = loaded
+                .module
+                .exports()
+                .find_map(|item| match (item.name == export, item.ty) {
+                    (true, ExportType::Func(ty)) => Some(ty),
+                    _ => None,
+                })
+                .ok_or_else(|| eyre::eyre!("export is not a function: {export}"))?;
+            let func = instance.func_untyped(&store, export)?;
+            let params = parse_invocation_args(func_ty, &args.args)?;
+            let results = func.call(&mut store, &params)?;
+            print_results(&results);
+            Ok(())
+        }
+        None => {
+            if instance.start_func(&store)?.is_none() {
+                bail!(
+                    "module has no start function or `_start` export; use `tinywasm inspect {module_path}` or `tinywasm run --invoke <export> {module_path}`"
+                )
+            }
+
+            let _ = instance.start(&mut store)?;
+            Ok(())
+        }
+    }
+}
diff --git a/crates/cli/src/cmd/wast.rs b/crates/cli/src/cmd/wast.rs
new file mode 100644
index 0000000..ef9c263
--- /dev/null
+++ b/crates/cli/src/cmd/wast.rs
@@ -0,0 +1,12 @@
+use std::path::PathBuf;
+
+use eyre::Result;
+
+use crate::cli::WastArgs;
+use crate::wast_runner::WastRunner;
+
+pub fn run(args: WastArgs) -> Result<()> {
+    let paths = args.paths.into_iter().map(PathBuf::from).collect::<Vec<_>>();
+    let mut runner = WastRunner::new();
+    runner.run_paths(&paths)
+}