Add shortcut translation API

codegen-luajit/src/lib.rs

@@ -1,6 +1,6 @@
 pub static RUNTIME: &str = include_str!("../runtime/runtime.lua");
 
-pub use translator::{from_inst_list, from_module};
+pub use translator::{from_inst_list, from_module_typed, from_module_untyped};
 
 mod analyzer;
 mod backend;

codegen-luajit/src/translator.rs

@@ -329,7 +329,7 @@ pub fn from_inst_list(code: &[Instruction], type_info: &TypeInfo, w: &mut dyn Wr
 
 /// # Errors
 /// Returns `Err` if writing to `Write` failed.
-pub fn from_module(wasm: &Module, type_info: &TypeInfo, w: &mut dyn Write) -> Result<()> {
+pub fn from_module_typed(wasm: &Module, type_info: &TypeInfo, w: &mut dyn Write) -> Result<()> {
 	let func_list = build_func_list(wasm, type_info);
 
 	write_localize_used(&func_list, w)?;
@@ -345,3 +345,11 @@ pub fn from_module(wasm: &Module, type_info: &TypeInfo, w: &mut dyn Write) -> Re
 	write_func_list(wasm, type_info, &func_list, w)?;
 	write_module_start(wasm, type_info, &mem_list, w)
 }
+
+/// # Errors
+/// Returns `Err` if writing to `Write` failed.
+pub fn from_module_untyped(wasm: &Module, w: &mut dyn Write) -> Result<()> {
+	let type_info = TypeInfo::from_module(wasm);
+
+	from_module_typed(wasm, &type_info, w)
+}

codegen-luau/src/lib.rs

@@ -5,7 +5,7 @@ pub static RUNTIME: &str = concat!(
 	include_str!("../runtime/runtime.lua")
 );
 
-pub use translator::{from_inst_list, from_module};
+pub use translator::{from_inst_list, from_module_typed, from_module_untyped};
 
 mod analyzer;
 mod backend;

codegen-luau/src/translator.rs

@@ -329,7 +329,7 @@ pub fn from_inst_list(code: &[Instruction], type_info: &TypeInfo, w: &mut dyn Wr
 
 /// # Errors
 /// Returns `Err` if writing to `Write` failed.
-pub fn from_module(wasm: &Module, type_info: &TypeInfo, w: &mut dyn Write) -> Result<()> {
+pub fn from_module_typed(wasm: &Module, type_info: &TypeInfo, w: &mut dyn Write) -> Result<()> {
 	let func_list = build_func_list(wasm, type_info);
 
 	write_localize_used(&func_list, w)?;
@@ -344,3 +344,11 @@ pub fn from_module(wasm: &Module, type_info: &TypeInfo, w: &mut dyn Write) -> Re
 	write_func_list(wasm, type_info, &func_list, w)?;
 	write_module_start(wasm, type_info, &mem_list, w)
 }
+
+/// # Errors
+/// Returns `Err` if writing to `Write` failed.
+pub fn from_module_untyped(wasm: &Module, w: &mut dyn Write) -> Result<()> {
+	let type_info = TypeInfo::from_module(wasm);
+
+	from_module_typed(wasm, &type_info, w)
+}

dev-test/Cargo.toml

@@ -10,7 +10,6 @@ cargo-fuzz = true
 [dependencies]
 libfuzzer-sys = "0.4"
 wasm-smith = "0.8.0"
-wasm-ast = { path = "../wasm-ast" }
 codegen-luajit = { path = "../codegen-luajit" }
 codegen-luau = { path = "../codegen-luau" }
 
@@ -21,6 +20,7 @@ features = ["multi_value", "sign_ext"]
 [dev-dependencies]
 test-generator = "0.3.0"
 wast = "41.0.0"
+wasm-ast = { path = "../wasm-ast" }
 
 [[bin]]
 name = "luajit_translate"

dev-test/fuzz_targets/luajit_translate.rs

@@ -1,6 +1,5 @@
 #![no_main]
 
-use wasm_ast::builder::TypeInfo;
 use wasm_smith::Module;
 
 // We are not interested in parity_wasm errors.
@@ -11,8 +10,7 @@ libfuzzer_sys::fuzz_target!(|module: Module| {
 		Err(_) => return,
 	};
 
-	let type_info = TypeInfo::from_module(&wasm);
 	let sink = &mut std::io::sink();
 
-	codegen_luajit::from_module(&wasm, &type_info, sink).expect("LuaJIT should succeed");
+	codegen_luajit::from_module_untyped(&wasm, sink).expect("LuaJIT should succeed");
 });

dev-test/fuzz_targets/luau_translate.rs

@@ -1,6 +1,5 @@
 #![no_main]
 
-use wasm_ast::builder::TypeInfo;
 use wasm_smith::Module;
 
 // We are not interested in parity_wasm errors.
@@ -11,8 +10,7 @@ libfuzzer_sys::fuzz_target!(|module: Module| {
 		Err(_) => return,
 	};
 
-	let type_info = TypeInfo::from_module(&wasm);
 	let sink = &mut std::io::sink();
 
-	codegen_luau::from_module(&wasm, &type_info, sink).expect("Luau should succeed");
+	codegen_luau::from_module_untyped(&wasm, sink).expect("Luau should succeed");
 });

dev-test/tests/specification.rs

@@ -64,7 +64,7 @@ impl Target for LuaJIT {
 
 	fn write_module(data: TypedModule, w: &mut dyn Write) -> IResult<()> {
 		write!(w, "storage[\"${}\"] = (function() ", data.name)?;
-		codegen_luajit::translate(data.module, &data.type_info, w)?;
+		codegen_luajit::from_module_typed(data.module, &data.type_info, w)?;
 		writeln!(w, "end)(nil)")
 	}
 }
@@ -89,7 +89,7 @@ impl Target for Luau {
 
 	fn write_module(data: TypedModule, w: &mut dyn Write) -> IResult<()> {
 		write!(w, "storage[\"${}\"] = (function() ", data.name)?;
-		codegen_luau::translate(data.module, &data.type_info, w)?;
+		codegen_luau::from_module_typed(data.module, &data.type_info, w)?;
 		writeln!(w, "end)(nil)")
 	}
 }

wasm-synth/Cargo.toml

@@ -9,9 +9,6 @@ edition = "2021"
 git = "https://github.com/paritytech/parity-wasm.git"
 features = ["multi_value", "sign_ext"]
 
-[dependencies.wasm-ast]
-path = "../wasm-ast"
-
 [dependencies.codegen-luajit]
 path = "../codegen-luajit"
 

wasm-synth/src/main.rs

@@ -1,31 +1,34 @@
 use std::io::{Result, Write};
 
 use parity_wasm::{deserialize_file, elements::Module};
-use wasm_ast::builder::TypeInfo;
 
-type Translate = fn(&Module, &TypeInfo, &mut dyn Write) -> Result<()>;
+type FromUntyped = fn(&Module, &mut dyn Write) -> Result<()>;
 
-fn parse_module(name: &str) -> Module {
+fn run_with(file: &str, runtime: &str, from_untyped: FromUntyped) -> Result<()> {
-	let wasm = deserialize_file(name).expect("Failed to parse Wasm file");
+	let wasm = deserialize_file(file)
+		.expect("Failed to parse Wasm file")
+		.parse_names()
+		.unwrap_or_else(|v| v.1);
 
-	wasm.parse_names().unwrap_or_else(|v| v.1)
+	let lock = &mut std::io::stdout().lock();
-}
-
-fn run_translator(wasm: &Module, runtime: &str, translate: Translate) -> Result<()> {
-	let pipe = std::io::stdout();
-	let lock = &mut pipe.lock();
-	let type_info = TypeInfo::from_module(wasm);
 
 	write!(lock, "local rt = (function() {runtime} end)() ")?;
-	translate(wasm, &type_info, lock)
+	from_untyped(&wasm, lock)
 }
 
-fn do_translate(name: &str, file: &str) {
+fn do_translate(lang: &str, file: &str) {
-	let wasm = &parse_module(file);
+	let result = match lang.to_lowercase().as_str() {
-	let result = match name.to_lowercase().as_str() {
+		"luajit" => run_with(
-		"luajit" => run_translator(wasm, codegen_luajit::RUNTIME, codegen_luajit::from_module),
+			file,
-		"luau" => run_translator(wasm, codegen_luau::RUNTIME, codegen_luau::from_module),
+			codegen_luajit::RUNTIME,
-		_ => panic!("Bad language: {name}"),
+			codegen_luajit::from_module_untyped,
+		),
+		"luau" => run_with(
+			file,
+			codegen_luau::RUNTIME,
+			codegen_luau::from_module_untyped,
+		),
+		_ => panic!("Bad language: {lang}"),
 	};
 
 	result.expect("Failed to translate file");