Fix main program

wasm-synth/src/main.rs

@@ -1,8 +1,9 @@
-use parity_wasm::{deserialize_file, elements::Module};
+use std::io::{Result, Write};
 
-use codegen_luajit::gen::Generator as LuaJIT;
+use parity_wasm::{deserialize_file, elements::Module};
-use codegen_luau::gen::Generator as Luau;
+use wasm_ast::builder::TypeInfo;
-use wasm_ast::writer::Transpiler;
+
+type Translator = fn(&Module, &TypeInfo, &mut dyn Write) -> Result<()>;
 
 fn parse_module(name: &str) -> Module {
 	let wasm = deserialize_file(name).expect("Failed to parse Wasm file");
@@ -10,42 +11,26 @@ fn parse_module(name: &str) -> Module {
 	wasm.parse_names().unwrap_or_else(|v| v.1)
 }
 
-fn run_translator<'a, T: Transpiler<'a>>(wasm: &'a Module) {
+fn run_translator(wasm: &Module, runtime: &str, translator: Translator) {
-	let module = T::new(wasm);
+	let mut pipe = std::io::stdout().lock();
-	let output = std::io::stdout();
+	let type_info = TypeInfo::from_module(wasm);
 
-	module
+	write!(pipe, "local rt = (function() {runtime} end)() ").unwrap();
-		.transpile(&mut output.lock())
+	translator(wasm, &type_info, &mut pipe).unwrap();
-		.expect("Failed to transpile");
-}
-
-fn run_runtime<'a, T: Transpiler<'a>>() {
-	let output = std::io::stdout();
-
-	T::runtime(&mut output.lock()).expect("Failed to fetch runtime");
 }
 
 fn do_translate(name: &str, file: &str) {
 	let wasm = &parse_module(file);
 
 	match name.to_lowercase().as_str() {
-		"luajit" => run_translator::<LuaJIT>(wasm),
+		"luajit" => run_translator(wasm, codegen_luajit::RUNTIME, codegen_luajit::translate),
-		"luau" => run_translator::<Luau>(wasm),
+		"luau" => run_translator(wasm, codegen_luau::RUNTIME, codegen_luau::translate),
 		_ => panic!("Bad language: {name}"),
 	}
 }
 
-fn do_runtime(name: &str) {
-	match name.to_lowercase().as_str() {
-		"luajit" => run_runtime::<LuaJIT>(),
-		"luau" => run_runtime::<Luau>(),
-		_ => panic!("Bad runtime: {name}"),
-	}
-}
-
 fn do_help() {
 	println!("usage: program translate <lang> <file>");
-	println!("  or:  program runtime <lang>");
 	println!("  or:  program help");
 }
 
@@ -54,11 +39,6 @@ fn main() {
 
 	match args.next().as_deref().unwrap_or("help") {
 		"help" => do_help(),
-		"runtime" => {
-			let lang = args.next().expect("No runtime specified");
-
-			do_runtime(&lang);
-		}
 		"translate" => {
 			let lang = args.next().expect("No language specified");
 			let file = args.next().expect("No file specified");