chore: wip imports

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

7 files changed, 54 insertions, 19 deletions

diff --git a/crates/tinywasm/src/func.rs b/crates/tinywasm/src/func.rs
index 87259f5..93ddbb2 100644
--- a/crates/tinywasm/src/func.rs
+++ b/crates/tinywasm/src/func.rs
@@ -167,13 +167,17 @@ macro_rules! impl_from_wasm_value_tuple {
             fn from_wasm_value_tuple(values: Vec<WasmValue>) -> Result<Self> {
                 #[allow(unused_variables, unused_mut)]
                 let mut iter = values.into_iter();
+
+                log::error!("from_wasm_value_tuple: {:?}", iter);
+
                 Ok((
                     $(
                         $T::try_from(
                             iter.next()
                             .ok_or(Error::Other("Not enough values in WasmValue vector".to_string()))?
                         )
-                        .map_err(|_| Error::Other("Could not convert WasmValue to expected type".to_string()))?,
+                        .map_err(|e| Error::Other(format!("FromWasmValueTuple: Could not convert WasmValue to expected type: {:?}", e,
+                    )))?,
                     )*
                 ))
             }
@@ -188,7 +192,12 @@ macro_rules! impl_from_wasm_value_tuple_single {
                 #[allow(unused_variables, unused_mut)]
                 let mut iter = values.into_iter();
                 $T::try_from(iter.next().ok_or(Error::Other("Not enough values in WasmValue vector".to_string()))?)
-                    .map_err(|_| Error::Other("Could not convert WasmValue to expected type".to_string()))
+                    .map_err(|e| {
+                        Error::Other(format!(
+                            "FromWasmValueTupleSingle: Could not convert WasmValue to expected type: {:?}",
+                            e
+                        ))
+                    })
             }
         }
     };
diff --git a/crates/tinywasm/src/imports.rs b/crates/tinywasm/src/imports.rs
index acfcb24..6b60fbd 100644
--- a/crates/tinywasm/src/imports.rs
+++ b/crates/tinywasm/src/imports.rs
@@ -160,11 +160,13 @@ impl Extern {
     pub fn typed_func<P, R>(func: impl Fn(FuncContext<'_>, P) -> Result<R> + 'static + Send + Sync) -> Self
     where
         P: FromWasmValueTuple + ValTypesFromTuple,
-        R: IntoWasmValueTuple + ValTypesFromTuple,
+        R: IntoWasmValueTuple + ValTypesFromTuple + Debug,
     {
         let inner_func = move |ctx: FuncContext<'_>, args: &[WasmValue]| -> Result<Vec<WasmValue>> {
+            log::error!("args: {:?}", args);
             let args = P::from_wasm_value_tuple(args.to_vec())?;
             let result = func(ctx, args)?;
+            log::error!("result: {:?}", result);
             Ok(result.into_wasm_value_tuple())
         };
 
@@ -250,7 +252,6 @@ impl Imports {
         import: &Import,
     ) -> Option<ResolvedExtern<ExternVal, Extern>> {
         let name = ExternName::from(import);
-        log::error!("provided externs: {:?}", self.values.keys());
         if let Some(v) = self.values.get(&name) {
             return Some(ResolvedExtern::Extern(v.clone()));
         }
diff --git a/crates/tinywasm/src/instance.rs b/crates/tinywasm/src/instance.rs
index c7e5c4a..5465125 100644
--- a/crates/tinywasm/src/instance.rs
+++ b/crates/tinywasm/src/instance.rs
@@ -15,7 +15,7 @@ use crate::{
 ///
 /// See <https://webassembly.github.io/spec/core/exec/runtime.html#module-instances>
 #[derive(Debug, Clone)]
-pub struct ModuleInstance(Arc<ModuleInstanceInner>);
+pub struct ModuleInstance(pub(crate) Arc<ModuleInstanceInner>);
 
 #[allow(dead_code)]
 #[derive(Debug)]
diff --git a/crates/tinywasm/src/runtime/executor/mod.rs b/crates/tinywasm/src/runtime/executor/mod.rs
index 80ad4b4..ab2ab9b 100644
--- a/crates/tinywasm/src/runtime/executor/mod.rs
+++ b/crates/tinywasm/src/runtime/executor/mod.rs
@@ -7,6 +7,7 @@ use crate::{
     CallFrame, Error, FuncContext, LabelArgs, ModuleInstance, Result, Store, Trap,
 };
 use alloc::{string::ToString, vec::Vec};
+use log::info;
 use tinywasm_types::{ElementKind, Instruction};
 
 mod macros;
@@ -127,7 +128,7 @@ fn exec_one(
         }
 
         Call(v) => {
-            debug!("start call");
+            log::info!("start call");
             // prepare the call frame
             let func_idx = module.resolve_func_addr(*v);
             let func_inst = store.get_func(func_idx as usize)?;
@@ -135,17 +136,21 @@ fn exec_one(
                 crate::Function::Wasm(ref f) => f,
                 crate::Function::Host(host_func) => {
                     let func = host_func.func.clone();
+                    log::info!("Getting params: {:?}", host_func.ty.params);
                     let params = stack.values.pop_params(&host_func.ty.params)?;
+                    log::error!("Calling host function, params: {:?}", params);
                     let res = (func)(FuncContext { store, module }, &params)?;
                     stack.values.extend_from_typed(&res);
                     return Ok(ExecResult::Ok);
                 }
             };
 
-            let func_ty = module.func_ty(func.ty_addr);
+            log::info!("wasm call, ty: {:?}", func.ty_addr);
+            log::info!("tys: {:?}", module.0.types);
+            let func_ty = func_inst.func.ty(module);
 
-            debug!("params: {:?}", func_ty.params);
-            debug!("stack: {:?}", stack.values);
+            info!("params: {:?}", func_ty.params);
+            info!("stack: {:?}", stack.values);
             let params = stack.values.pop_n_rev(func_ty.params.len())?;
             let call_frame = CallFrame::new_raw(func_idx as usize, &params, func.locals.to_vec());
 
diff --git a/crates/tinywasm/src/runtime/stack/value_stack.rs b/crates/tinywasm/src/runtime/stack/value_stack.rs
index 7b4613d..cfd534c 100644
--- a/crates/tinywasm/src/runtime/stack/value_stack.rs
+++ b/crates/tinywasm/src/runtime/stack/value_stack.rs
@@ -30,6 +30,10 @@ impl ValueStack {
 
     #[inline]
     pub(crate) fn extend_from_typed(&mut self, values: &[WasmValue]) {
+        if values.is_empty() {
+            return;
+        }
+
         self.top += values.len();
         self.stack.extend(values.iter().map(|v| RawWasmValue::from(*v)));
     }
@@ -82,12 +86,16 @@ impl ValueStack {
 
     #[inline]
     pub(crate) fn pop_params(&mut self, types: &[ValType]) -> Result<Vec<WasmValue>> {
-        let n = types.len();
-        if self.top < n {
-            return Err(Error::StackUnderflow);
+        log::info!("pop_params: types={:?}", types);
+        log::info!("stack={:?}", self.stack);
+
+        let mut res = Vec::with_capacity(types.len());
+        for ty in types.iter() {
+            let v = self.pop()?;
+            let v = v.attach_type(*ty);
+            res.push(v.into());
         }
-        self.top -= n;
-        let res = self.stack.drain(self.top..).rev().map(|v| v.attach_type(types[n - 1])).collect();
+
         Ok(res)
     }
 
diff --git a/crates/tinywasm/tests/generated/mvp.csv b/crates/tinywasm/tests/generated/mvp.csv
index 4378713..6fb3476 100644
--- a/crates/tinywasm/tests/generated/mvp.csv
+++ b/crates/tinywasm/tests/generated/mvp.csv
@@ -2,4 +2,4 @@
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diff --git a/crates/types/src/lib.rs b/crates/types/src/lib.rs
index a9cbdcd..96866d3 100644
--- a/crates/types/src/lib.rs
+++ b/crates/types/src/lib.rs
@@ -171,7 +171,10 @@ impl TryFrom<WasmValue> for i32 {
     fn try_from(value: WasmValue) -> Result<Self, Self::Error> {
         match value {
             WasmValue::I32(i) => Ok(i),
-            _ => Err(()),
+            _ => {
+                log::error!("i32: try_from failed: {:?}", value);
+                Err(())
+            }
         }
     }
 }
@@ -182,7 +185,10 @@ impl TryFrom<WasmValue> for i64 {
     fn try_from(value: WasmValue) -> Result<Self, Self::Error> {
         match value {
             WasmValue::I64(i) => Ok(i),
-            _ => Err(()),
+            _ => {
+                log::error!("i64: try_from failed: {:?}", value);
+                Err(())
+            }
         }
     }
 }
@@ -193,7 +199,10 @@ impl TryFrom<WasmValue> for f32 {
     fn try_from(value: WasmValue) -> Result<Self, Self::Error> {
         match value {
             WasmValue::F32(i) => Ok(i),
-            _ => Err(()),
+            _ => {
+                log::error!("f32: try_from failed: {:?}", value);
+                Err(())
+            }
         }
     }
 }
@@ -204,7 +213,10 @@ impl TryFrom<WasmValue> for f64 {
     fn try_from(value: WasmValue) -> Result<Self, Self::Error> {
         match value {
             WasmValue::F64(i) => Ok(i),
-            _ => Err(()),
+            _ => {
+                log::error!("f64: try_from failed: {:?}", value);
+                Err(())
+            }
         }
     }
 }