chore: restructure runtime and reduce build dependencies

Signed-off-by: Henry Gressmann <mail@henrygressmann.de>

27 files changed, 232 insertions, 65 deletions

diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index bccf998..51a669d 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -15,12 +15,12 @@ path="src/bin.rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-tinywasm={version="0.7.0", path="../tinywasm", features=["std", "parser"]}
+tinywasm={version="0.8.0-alpha.0", path="../tinywasm", features=["std", "parser"]}
 argh="0.1"
-color-eyre={version="0.6", default-features=false}
-log="0.4"
-pretty_env_logger="0.5"
-wast={version="212.0", optional=true}
+eyre={workspace=true}
+log={workspace=true}
+pretty_env_logger={workspace=true}
+wast={workspace=true, optional=true}
 
 [features]
 default=["wat"]
diff --git a/crates/cli/src/bin.rs b/crates/cli/src/bin.rs
index 6508c5f..15e3fdc 100644
--- a/crates/cli/src/bin.rs
+++ b/crates/cli/src/bin.rs
@@ -2,7 +2,7 @@ use std::str::FromStr;
 
 use argh::FromArgs;
 use args::WasmArg;
-use color_eyre::eyre::Result;
+use eyre::Result;
 use log::{debug, info};
 use tinywasm::{types::WasmValue, Module};
 
@@ -67,8 +67,6 @@ struct Run {
 }
 
 fn main() -> Result<()> {
-    color_eyre::install()?;
-
     let args: TinyWasmCli = argh::from_env();
     let level = match args.log_level.as_str() {
         "trace" => log::LevelFilter::Trace,
@@ -80,7 +78,6 @@ fn main() -> Result<()> {
     };
 
     pretty_env_logger::formatted_builder().filter_level(level).init();
-
     let cwd = std::env::current_dir()?;
 
     match args.nested {
@@ -96,7 +93,7 @@ fn main() -> Result<()> {
                     tinywasm::Module::parse_bytes(&wasm)?
                 }
                 #[cfg(not(feature = "wat"))]
-                true => return Err(color_eyre::eyre::eyre!("wat support is not enabled in this build")),
+                true => return Err(eyre::eyre!("wat support is not enabled in this build")),
                 false => tinywasm::Module::parse_file(path)?,
             };
 
diff --git a/crates/parser/Cargo.toml b/crates/parser/Cargo.toml
index 89d2b71..994bd6d 100644
--- a/crates/parser/Cargo.toml
+++ b/crates/parser/Cargo.toml
@@ -10,8 +10,8 @@ rust-version.workspace=true
 
 [dependencies]
 wasmparser={version="0.212", default-features=false, features=["validate"]}
-log={version="0.4", optional=true}
-tinywasm-types={version="0.7.0", path="../types", default-features=false}
+log={workspace=true, optional=true}
+tinywasm-types={version="0.8.0-alpha.0", path="../types", default-features=false}
 
 [features]
 default=["std", "logging"]
diff --git a/crates/parser/src/lib.rs b/crates/parser/src/lib.rs
index 8ea5a86..77349b2 100644
--- a/crates/parser/src/lib.rs
+++ b/crates/parser/src/lib.rs
@@ -5,7 +5,6 @@
 ))]
 #![warn(missing_docs, missing_debug_implementations, rust_2018_idioms, unreachable_pub)]
 #![forbid(unsafe_code)]
-#![cfg_attr(not(feature = "std"), feature(error_in_core))]
 //! See [`tinywasm`](https://docs.rs/tinywasm) for documentation.
 
 extern crate alloc;
@@ -15,23 +14,25 @@ extern crate std;
 
 // log for logging (optional).
 #[cfg(feature = "logging")]
-#[allow(clippy::single_component_path_imports)]
+#[allow(clippy::single_component_path_imports, unused_imports)]
 use log;
 
 // noop fallback if logging is disabled.
 #[cfg(not(feature = "logging"))]
-mod log {
+#[allow(unused_imports, unused_macros)]
+pub(crate) mod log {
     macro_rules! debug    ( ($($tt:tt)*) => {{}} );
+    macro_rules! info    ( ($($tt:tt)*) => {{}} );
     macro_rules! error    ( ($($tt:tt)*) => {{}} );
     pub(crate) use debug;
     pub(crate) use error;
+    pub(crate) use info;
 }
 
 mod conversion;
 mod error;
 mod module;
 mod visit;
-use alloc::vec::Vec;
 pub use error::*;
 use module::ModuleReader;
 use wasmparser::{Validator, WasmFeaturesInflated};
@@ -114,7 +115,7 @@ impl Parser {
 
         let mut validator = self.create_validator();
         let mut reader = ModuleReader::new();
-        let mut buffer = Vec::new();
+        let mut buffer = alloc::vec::Vec::new();
         let mut parser = wasmparser::Parser::new(0);
         let mut eof = false;
 
diff --git a/crates/tinywasm/Cargo.toml b/crates/tinywasm/Cargo.toml
index 4e15123..8b93a39 100644
--- a/crates/tinywasm/Cargo.toml
+++ b/crates/tinywasm/Cargo.toml
@@ -14,23 +14,24 @@ name="tinywasm"
 path="src/lib.rs"
 
 [dependencies]
-_log={version="0.4", optional=true, package="log"}
-tinywasm-parser={version="0.7.0", path="../parser", default-features=false, optional=true}
-tinywasm-types={version="0.7.0", path="../types", default-features=false}
+log={workspace=true, optional=true}
+tinywasm-parser={version="0.8.0-alpha.0", path="../parser", default-features=false, optional=true}
+tinywasm-types={version="0.8.0-alpha.0", path="../types", default-features=false}
 libm={version="0.2", default-features=false}
 
 [dev-dependencies]
 wasm-testsuite={path="../wasm-testsuite"}
-wast={version="212.0"}
+wast={workspace=true}
+eyre={workspace=true}
+pretty_env_logger={workspace=true}
+criterion={workspace=true}
 owo-colors={version="4.0"}
-eyre={version="0.6"}
 serde_json={version="1.0"}
 serde={version="1.0", features=["derive"]}
-pretty_env_logger="0.5"
 
 [features]
 default=["std", "parser", "logging", "archive"]
-logging=["_log", "tinywasm-parser?/logging", "tinywasm-types/logging"]
+logging=["log", "tinywasm-parser?/logging", "tinywasm-types/logging"]
 std=["tinywasm-parser?/std", "tinywasm-types/std"]
 parser=["tinywasm-parser"]
 archive=["tinywasm-types/archive"]
@@ -48,3 +49,16 @@ harness=false
 [[test]]
 name="test-wast"
 harness=false
+
+
+[[bench]]
+name="argon2id"
+harness=false
+
+[[bench]]
+name="fibonacci"
+harness=false
+
+[[bench]]
+name="tinywasm"
+harness=false
diff --git a/crates/tinywasm/benches/argon2id.rs b/crates/tinywasm/benches/argon2id.rs
new file mode 100644
index 0000000..d87c78e
--- /dev/null
+++ b/crates/tinywasm/benches/argon2id.rs
@@ -0,0 +1,43 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use eyre::Result;
+use tinywasm::*;
+use types::{archive::AlignedVec, TinyWasmModule};
+
+const WASM: &[u8] = include_bytes!("../../../examples/rust/out/argon2id.opt.wasm");
+
+fn argon2id_parse() -> Result<TinyWasmModule> {
+    let parser = tinywasm_parser::Parser::new();
+    let data = parser.parse_module_bytes(WASM)?;
+    Ok(data)
+}
+
+fn argon2id_to_twasm(module: TinyWasmModule) -> Result<AlignedVec> {
+    let twasm = module.serialize_twasm();
+    Ok(twasm)
+}
+
+fn argon2id_from_twasm(twasm: AlignedVec) -> Result<TinyWasmModule> {
+    let module = TinyWasmModule::from_twasm(&twasm)?;
+    Ok(module)
+}
+
+fn argon2id_run(module: TinyWasmModule) -> Result<()> {
+    let mut store = Store::default();
+    let instance = ModuleInstance::instantiate(&mut store, module.into(), None)?;
+    let argon2 = instance.exported_func::<(i32, i32, i32), i32>(&store, "argon2id")?;
+    argon2.call(&mut store, (1000, 1, 1))?;
+    Ok(())
+}
+
+fn criterion_benchmark(c: &mut Criterion) {
+    let module = argon2id_parse().expect("argon2id_parse");
+    let twasm = argon2id_to_twasm(module.clone()).expect("argon2id_to_twasm");
+
+    c.bench_function("argon2id_parse", |b| b.iter(argon2id_parse));
+    c.bench_function("argon2id_to_twasm", |b| b.iter(|| argon2id_to_twasm(module.clone())));
+    c.bench_function("argon2id_from_twasm", |b| b.iter(|| argon2id_from_twasm(twasm.clone())));
+    c.bench_function("argon2id", |b| b.iter(|| argon2id_run(module.clone())));
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);
diff --git a/crates/tinywasm/benches/fibonacci.rs b/crates/tinywasm/benches/fibonacci.rs
new file mode 100644
index 0000000..e5c7184
--- /dev/null
+++ b/crates/tinywasm/benches/fibonacci.rs
@@ -0,0 +1,50 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use eyre::Result;
+use tinywasm::*;
+use types::{archive::AlignedVec, TinyWasmModule};
+
+const WASM: &[u8] = include_bytes!("../../../examples/rust/out/fibonacci.opt.wasm");
+
+fn fibonacci_parse() -> Result<TinyWasmModule> {
+    let parser = tinywasm_parser::Parser::new();
+    let data = parser.parse_module_bytes(WASM)?;
+    Ok(data)
+}
+
+fn fibonacci_to_twasm(module: TinyWasmModule) -> Result<AlignedVec> {
+    let twasm = module.serialize_twasm();
+    Ok(twasm)
+}
+
+fn fibonacci_from_twasm(twasm: AlignedVec) -> Result<TinyWasmModule> {
+    let module = TinyWasmModule::from_twasm(&twasm)?;
+    Ok(module)
+}
+
+fn fibonacci_run(module: TinyWasmModule, recursive: bool, n: i32) -> Result<()> {
+    let mut store = Store::default();
+    let instance = ModuleInstance::instantiate(&mut store, module.into(), None)?;
+    let argon2 = instance.exported_func::<i32, i32>(
+        &store,
+        match recursive {
+            true => "fibonacci_recursive",
+            false => "fibonacci",
+        },
+    )?;
+    argon2.call(&mut store, n)?;
+    Ok(())
+}
+
+fn criterion_benchmark(c: &mut Criterion) {
+    let module = fibonacci_parse().expect("fibonacci_parse");
+    let twasm = fibonacci_to_twasm(module.clone()).expect("fibonacci_to_twasm");
+
+    c.bench_function("fibonacci_parse", |b| b.iter(fibonacci_parse));
+    c.bench_function("fibonacci_to_twasm", |b| b.iter(|| fibonacci_to_twasm(module.clone())));
+    c.bench_function("fibonacci_from_twasm", |b| b.iter(|| fibonacci_from_twasm(twasm.clone())));
+    c.bench_function("fibonacci_iterative_60", |b| b.iter(|| fibonacci_run(module.clone(), false, 60)));
+    c.bench_function("fibonacci_recursive_60", |b| b.iter(|| fibonacci_run(module.clone(), true, 60)));
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);
diff --git a/crates/tinywasm/benches/tinywasm.rs b/crates/tinywasm/benches/tinywasm.rs
new file mode 100644
index 0000000..52bf4a8
--- /dev/null
+++ b/crates/tinywasm/benches/tinywasm.rs
@@ -0,0 +1,45 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use eyre::Result;
+use tinywasm::*;
+use types::{archive::AlignedVec, TinyWasmModule};
+
+const WASM: &[u8] = include_bytes!("../../../examples/rust/out/tinywasm.opt.wasm");
+
+fn tinywasm_parse() -> Result<TinyWasmModule> {
+    let parser = tinywasm_parser::Parser::new();
+    let data = parser.parse_module_bytes(WASM)?;
+    Ok(data)
+}
+
+fn tinywasm_to_twasm(module: TinyWasmModule) -> Result<AlignedVec> {
+    let twasm = module.serialize_twasm();
+    Ok(twasm)
+}
+
+fn tinywasm_from_twasm(twasm: AlignedVec) -> Result<TinyWasmModule> {
+    let module = TinyWasmModule::from_twasm(&twasm)?;
+    Ok(module)
+}
+
+fn tinywasm_run(module: TinyWasmModule) -> Result<()> {
+    let mut store = Store::default();
+    let mut imports = Imports::default();
+    imports.define("env", "printi32", Extern::typed_func(|_: FuncContext<'_>, _: i32| Ok(()))).expect("define");
+    let instance = ModuleInstance::instantiate(&mut store, module.into(), Some(imports)).expect("instantiate");
+    let hello = instance.exported_func::<(), ()>(&store, "hello").expect("exported_func");
+    hello.call(&mut store, ()).expect("call");
+    Ok(())
+}
+
+fn criterion_benchmark(c: &mut Criterion) {
+    let module = tinywasm_parse().expect("tinywasm_parse");
+    let twasm = tinywasm_to_twasm(module.clone()).expect("tinywasm_to_twasm");
+
+    c.bench_function("tinywasm_parse", |b| b.iter(tinywasm_parse));
+    c.bench_function("tinywasm_to_twasm", |b| b.iter(|| tinywasm_to_twasm(module.clone())));
+    c.bench_function("tinywasm_from_twasm", |b| b.iter(|| tinywasm_from_twasm(twasm.clone())));
+    c.bench_function("tinywasm", |b| b.iter(|| tinywasm_run(module.clone())));
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);
diff --git a/crates/tinywasm/src/func.rs b/crates/tinywasm/src/func.rs
index 3b97d93..681ca7e 100644
--- a/crates/tinywasm/src/func.rs
+++ b/crates/tinywasm/src/func.rs
@@ -1,4 +1,4 @@
-use crate::interpreter::{CallFrame, Stack};
+use crate::interpreter::stack::{CallFrame, Stack};
 use crate::{log, unlikely, Function};
 use crate::{Error, FuncContext, Result, Store};
 use alloc::{boxed::Box, format, string::String, string::ToString, vec, vec::Vec};
diff --git a/crates/tinywasm/src/imports.rs b/crates/tinywasm/src/imports.rs
index 8c208f0..c6cd0c2 100644
--- a/crates/tinywasm/src/imports.rs
+++ b/crates/tinywasm/src/imports.rs
@@ -191,7 +191,7 @@ impl From<&Import> for ExternName {
 ///
 /// ## Example
 /// ```rust
-/// # use _log as log;
+/// # use log;
 /// # fn main() -> tinywasm::Result<()> {
 /// use tinywasm::{Imports, Extern};
 /// use tinywasm::types::{ValType, TableType, MemoryType, WasmValue};
diff --git a/crates/tinywasm/src/interpreter/executor.rs b/crates/tinywasm/src/interpreter/executor.rs
index 386099d..7f724f3 100644
--- a/crates/tinywasm/src/interpreter/executor.rs
+++ b/crates/tinywasm/src/interpreter/executor.rs
@@ -1,17 +1,14 @@
 #[cfg(not(feature = "std"))]
-mod no_std_floats;
-
-use interpreter::CallFrame;
-#[cfg(not(feature = "std"))]
 #[allow(unused_imports)]
-use no_std_floats::NoStdFloatExt;
+use super::no_std_floats::NoStdFloatExt;
 
 use alloc::{format, rc::Rc, string::ToString};
 use core::ops::ControlFlow;
+use interpreter::stack::CallFrame;
 use tinywasm_types::*;
 
 use super::num_helpers::*;
-use super::stack::{values::StackHeight, BlockFrame, BlockType, Stack};
+use super::stack::{BlockFrame, BlockType, Stack};
 use super::values::*;
 use crate::*;
 
@@ -32,6 +29,7 @@ impl<'store, 'stack> Executor<'store, 'stack> {
     #[inline]
     pub(crate) fn run_to_completion(&mut self) -> Result<()> {
         loop {
+            // TODO: the result checking takes about 10% of the time
             match self.exec_next()? {
                 ControlFlow::Break(..) => return Ok(()),
                 ControlFlow::Continue(..) => continue,
diff --git a/crates/tinywasm/src/interpreter/mod.rs b/crates/tinywasm/src/interpreter/mod.rs
index f9096f8..0299cb1 100644
--- a/crates/tinywasm/src/interpreter/mod.rs
+++ b/crates/tinywasm/src/interpreter/mod.rs
@@ -1,14 +1,13 @@
-mod executor;
-mod num_helpers;
+pub(crate) mod executor;
+pub(crate) mod num_helpers;
 pub(crate) mod stack;
+mod values;
 
-#[doc(hidden)]
-pub use stack::values;
-pub use stack::values::*;
-
-pub(crate) use stack::{CallFrame, Stack};
+#[cfg(not(feature = "std"))]
+mod no_std_floats;
 
 use crate::{Result, Store};
+pub use values::*;
 
 /// The main TinyWasm runtime.
 ///
@@ -17,7 +16,7 @@ use crate::{Result, Store};
 pub struct InterpreterRuntime {}
 
 impl InterpreterRuntime {
-    pub(crate) fn exec(&self, store: &mut Store, stack: &mut Stack) -> Result<()> {
+    pub(crate) fn exec(&self, store: &mut Store, stack: &mut stack::Stack) -> Result<()> {
         executor::Executor::new(store, stack)?.run_to_completion()
     }
 }
diff --git a/crates/tinywasm/src/interpreter/stack/block_stack.rs b/crates/tinywasm/src/interpreter/stack/block_stack.rs
index cef536a..6121bec 100644
--- a/crates/tinywasm/src/interpreter/stack/block_stack.rs
+++ b/crates/tinywasm/src/interpreter/stack/block_stack.rs
@@ -1,7 +1,7 @@
 use crate::{cold, unlikely, Error, Result};
 use alloc::vec::Vec;
 
-use super::values::{StackHeight, StackLocation};
+use crate::interpreter::values::{StackHeight, StackLocation};
 
 #[derive(Debug)]
 pub(crate) struct BlockStack(Vec<BlockFrame>);
diff --git a/crates/tinywasm/src/interpreter/stack/call_stack.rs b/crates/tinywasm/src/interpreter/stack/call_stack.rs
index 8e9dbe7..18eac4f 100644
--- a/crates/tinywasm/src/interpreter/stack/call_stack.rs
+++ b/crates/tinywasm/src/interpreter/stack/call_stack.rs
@@ -1,5 +1,5 @@
-use super::values::{InternalValue, TinyWasmValue, Value128, Value32, Value64, ValueRef};
 use super::BlockType;
+use crate::interpreter::values::*;
 use crate::unlikely;
 use crate::{Result, Trap};
 
@@ -98,6 +98,7 @@ impl CallFrame {
 
     /// Break to a block at the given index (relative to the current frame)
     /// Returns `None` if there is no block at the given index (e.g. if we need to return, this is handled by the caller)
+    #[inline(always)]
     pub(crate) fn break_to(
         &mut self,
         break_to_relative: u32,
diff --git a/crates/tinywasm/src/interpreter/stack/mod.rs b/crates/tinywasm/src/interpreter/stack/mod.rs
index 3902bd2..c526c4a 100644
--- a/crates/tinywasm/src/interpreter/stack/mod.rs
+++ b/crates/tinywasm/src/interpreter/stack/mod.rs
@@ -1,10 +1,9 @@
 mod block_stack;
 mod call_stack;
 mod value_stack;
-pub mod values;
 
 pub(crate) use block_stack::{BlockFrame, BlockStack, BlockType};
-pub(crate) use call_stack::{CallFrame, CallStack};
+pub(crate) use call_stack::{CallFrame, CallStack, Locals};
 pub(crate) use value_stack::ValueStack;
 
 /// A WebAssembly Stack
diff --git a/crates/tinywasm/src/interpreter/stack/value_stack.rs b/crates/tinywasm/src/interpreter/stack/value_stack.rs
index fc23b48..525d061 100644
--- a/crates/tinywasm/src/interpreter/stack/value_stack.rs
+++ b/crates/tinywasm/src/interpreter/stack/value_stack.rs
@@ -1,8 +1,7 @@
 use alloc::vec::Vec;
 use tinywasm_types::{ValType, WasmValue};
 
-use super::values::*;
-use crate::Result;
+use crate::{interpreter::values::*, Result};
 pub(crate) const STACK_32_SIZE: usize = 1024 * 128;
 pub(crate) const STACK_64_SIZE: usize = 1024 * 128;
 pub(crate) const STACK_128_SIZE: usize = 1024 * 128;
@@ -51,6 +50,7 @@ impl ValueStack {
         T::stack_pop(self).map(|_| ())
     }
 
+    // TODO: this needs to re-introduce the top replacement optimization
     pub(crate) fn select<T: InternalValue>(&mut self) -> Result<()> {
         let cond: i32 = self.pop()?;
         let val2: T = self.pop()?;
@@ -61,6 +61,8 @@ impl ValueStack {
         Ok(())
     }
 
+    // TODO: this needs to re-introduce the top replacement optimization
+    #[inline(always)]
     pub(crate) fn calculate<T: InternalValue, U: InternalValue>(&mut self, func: fn(T, T) -> Result<U>) -> Result<()> {
         let v2 = T::stack_pop(self)?;
         let v1 = T::stack_pop(self)?;
@@ -68,6 +70,7 @@ impl ValueStack {
         Ok(())
     }
 
+    // TODO: this needs to re-introduce the top replacement optimization
     pub(crate) fn replace_top<T: InternalValue, U: InternalValue>(&mut self, func: fn(T) -> Result<U>) -> Result<()> {
         let v1 = T::stack_pop(self)?;
         U::stack_push(self, func(v1)?);
diff --git a/crates/tinywasm/src/interpreter/stack/values.rs b/crates/tinywasm/src/interpreter/values.rs
index 6e8274f..c934e51 100644
--- a/crates/tinywasm/src/interpreter/stack/values.rs
+++ b/crates/tinywasm/src/interpreter/values.rs
@@ -1,8 +1,9 @@
 #![allow(missing_docs)]
-use super::{call_stack::Locals, ValueStack};
 use crate::{Error, Result};
 use tinywasm_types::{LocalAddr, ValType, WasmValue};
 
+use super::stack::{Locals, ValueStack};
+
 pub(crate) type Value32 = u32;
 pub(crate) type Value64 = u64;
 pub(crate) type Value128 = u128;
@@ -156,29 +157,42 @@ macro_rules! impl_internalvalue {
             impl sealed::Sealed for $outer {}
 
             impl From<$outer> for TinyWasmValue {
+                #[inline(always)]
                 fn from(value: $outer) -> Self {
                     TinyWasmValue::$variant($to_internal(value))
                 }
             }
 
             impl InternalValue for $outer {
-                #[inline]
+                #[inline(always)]
                 fn stack_push(stack: &mut ValueStack, value: Self) {
                     stack.$stack.push($to_internal(value));
                 }
-                #[inline]
+                #[inline(always)]
                 fn stack_pop(stack: &mut ValueStack) -> Result<Self> {
-                    stack.$stack.pop().ok_or(Error::ValueStackUnderflow).map($to_outer)
+                    match stack.$stack.pop() {
+                        Some(v) => Ok($to_outer(v)),
+                        None => {
+                            crate::cold();
+                            Err(Error::ValueStackUnderflow)
+                        },
+                    }
                 }
-                #[inline]
+                #[inline(always)]
                 fn stack_peek(stack: &ValueStack) -> Result<Self> {
-                    stack.$stack.last().copied().ok_or(Error::ValueStackUnderflow).map($to_outer)
+                    match stack.$stack.last() {
+                        Some(v) => Ok($to_outer(*v)),
+                        None => {
+                            crate::cold();
+                            Err(Error::ValueStackUnderflow)
+                        },
+                    }
                 }
-                #[inline]
+                #[inline(always)]
                 fn local_get(locals: &Locals, index: LocalAddr) -> Result<Self> {
                     Ok($to_outer(locals.$locals[index as usize]))
                 }
-                #[inline]
+                #[inline(always)]
                 fn local_set(locals: &mut Locals, index: LocalAddr, value: Self) -> Result<()> {
                     locals.$locals[index as usize] = $to_internal(value);
                     Ok(())
diff --git a/crates/tinywasm/src/lib.rs b/crates/tinywasm/src/lib.rs
index c1c2549..cf6f585 100644
--- a/crates/tinywasm/src/lib.rs
+++ b/crates/tinywasm/src/lib.rs
@@ -78,10 +78,11 @@ extern crate alloc;
 // log for logging (optional).
 #[cfg(feature = "logging")]
 #[allow(clippy::single_component_path_imports)]
-use _log as log;
+use log;
 
 // noop fallback if logging is disabled.
 #[cfg(not(feature = "logging"))]
+#[allow(unused_imports, unused_macros)]
 pub(crate) mod log {
     macro_rules! debug    ( ($($tt:tt)*) => {{}} );
     macro_rules! info    ( ($($tt:tt)*) => {{}} );
diff --git a/crates/tinywasm/tests/generated/2.0.csv b/crates/tinywasm/tests/generated/2.0.csv
index 3ad4978..1018f36 100644
--- a/crates/tinywasm/tests/generated/2.0.csv
+++ b/crates/tinywasm/tests/generated/2.0.csv
@@ -3,4 +3,5 @@
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diff --git a/crates/tinywasm/tests/generated/mvp.csv b/crates/tinywasm/tests/generated/mvp.csv
index 41b2d92..dc213fc 100644
--- a/crates/tinywasm/tests/generated/mvp.csv
+++ b/crates/tinywasm/tests/generated/mvp.csv
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diff --git a/crates/tinywasm/tests/test-mvp.rs b/crates/tinywasm/tests/test-mvp.rs
index a1c2067..445b7fa 100644
--- a/crates/tinywasm/tests/test-mvp.rs
+++ b/crates/tinywasm/tests/test-mvp.rs
@@ -1,5 +1,4 @@
 mod testsuite;
-use _log as log;
 use eyre::{eyre, Result};
 use owo_colors::OwoColorize;
 use testsuite::TestSuite;
diff --git a/crates/tinywasm/tests/test-two.rs b/crates/tinywasm/tests/test-two.rs
index b5ed9c8..e710d1a 100644
--- a/crates/tinywasm/tests/test-two.rs
+++ b/crates/tinywasm/tests/test-two.rs
@@ -1,5 +1,4 @@
 mod testsuite;
-use _log as log;
 use eyre::{eyre, Result};
 use owo_colors::OwoColorize;
 use testsuite::TestSuite;
diff --git a/crates/tinywasm/tests/test-wast.rs b/crates/tinywasm/tests/test-wast.rs
index fa3af91..1d3fbe3 100644
--- a/crates/tinywasm/tests/test-wast.rs
+++ b/crates/tinywasm/tests/test-wast.rs
@@ -1,6 +1,5 @@
 use std::path::PathBuf;
 
-use _log as log;
 use eyre::{bail, eyre, Result};
 use owo_colors::OwoColorize;
 use testsuite::TestSuite;
diff --git a/crates/tinywasm/tests/testsuite/mod.rs b/crates/tinywasm/tests/testsuite/mod.rs
index 6223982..35f0607 100644
--- a/crates/tinywasm/tests/testsuite/mod.rs
+++ b/crates/tinywasm/tests/testsuite/mod.rs
@@ -1,6 +1,5 @@
 #![allow(dead_code)] // rust analyzer doesn't recognize that code is used by tests without harness
 
-use _log as log;
 use eyre::Result;
 use owo_colors::OwoColorize;
 use std::io::{BufRead, Seek, SeekFrom};
diff --git a/crates/tinywasm/tests/testsuite/run.rs b/crates/tinywasm/tests/testsuite/run.rs
index 456b0a4..c005b9a 100644
--- a/crates/tinywasm/tests/testsuite/run.rs
+++ b/crates/tinywasm/tests/testsuite/run.rs
@@ -3,7 +3,6 @@ use crate::testsuite::util::*;
 use std::{borrow::Cow, collections::HashMap};
 
 use super::TestSuite;
-use _log as log;
 use eyre::{eyre, Result};
 use log::{debug, error, info};
 use tinywasm::{Extern, Imports, ModuleInstance};
diff --git a/crates/types/Cargo.toml b/crates/types/Cargo.toml
index df89c89..b643964 100644
--- a/crates/types/Cargo.toml
+++ b/crates/types/Cargo.toml
@@ -9,7 +9,7 @@ repository.workspace=true
 rust-version.workspace=true
 
 [dependencies]
-log={version="0.4", optional=true}
+log={workspace=true, optional=true}
 rkyv={version="0.7", optional=true, default-features=false, features=["size_32", "validation"]}
 bytecheck={version="0.7", optional=true}
 
diff --git a/crates/types/src/lib.rs b/crates/types/src/lib.rs
index cdee7e6..db39689 100644
--- a/crates/types/src/lib.rs
+++ b/crates/types/src/lib.rs
@@ -14,14 +14,19 @@ use core::{fmt::Debug, ops::Range};
 
 // log for logging (optional).
 #[cfg(feature = "logging")]
-#[allow(clippy::single_component_path_imports, unused)]
+#[allow(clippy::single_component_path_imports, unused_imports)]
 use log;
 
+// noop fallback if logging is disabled.
 #[cfg(not(feature = "logging"))]
-#[macro_use]
+#[allow(unused_imports, unused_macros)]
 pub(crate) mod log {
+    macro_rules! debug    ( ($($tt:tt)*) => {{}} );
+    macro_rules! info    ( ($($tt:tt)*) => {{}} );
     macro_rules! error    ( ($($tt:tt)*) => {{}} );
+    pub(crate) use debug;
     pub(crate) use error;
+    pub(crate) use info;
 }
 
 mod instructions;