Fix warnings

examples/interpret.rs

@@ -24,7 +24,7 @@ fn main() {
     // - a module declaration
     // - "main" module doesn't import native module(s) this is why we don't need to provide external native modules here
     // This test shows how to implement native module https://github.com/NikVolf/parity-wasm/blob/master/src/interpreter/tests/basics.rs#L197
-    let module = program.add_module("main", module, &mut ()).expect("Failed to initialize module");
+    program.add_module("main", module, &mut ()).expect("Failed to initialize module");
 
     // The argument should be parsable as a valid integer
     let argument: i32 = args[2].parse().expect("Integer argument required");

examples/invoke.rs

@@ -2,7 +2,7 @@ extern crate parity_wasm;
 
 use std::env::args;
 
-use parity_wasm::{interpreter, RuntimeValue};
+use parity_wasm::RuntimeValue;
 use parity_wasm::elements::{Internal, External, Type, FunctionType, ValueType};
 
 
@@ -76,7 +76,7 @@ fn main() {
     // - a module declaration
     // - "main" module doesn't import native module(s) this is why we don't need to provide external native modules here
     // This test shows how to implement native module https://github.com/NikVolf/parity-wasm/blob/master/src/interpreter/tests/basics.rs#L197
-    let module = program.add_module("main", module, &mut ()).expect("Failed to initialize module");
+    program.add_module("main", module, &mut ()).expect("Failed to initialize module");
 
     println!("Result: {:?}", program.invoke_export("main", func_name, args, &mut ()).expect(""));
 }

src/builder/module.rs

@@ -488,6 +488,7 @@ impl<F> Invoke<elements::DataSegment> for ModuleBuilder<F>
 }
 
 /// Start new module builder
+///
 /// # Examples
 ///
 /// ```

src/common/stack.rs

@@ -47,22 +47,12 @@ impl<T> StackWithLimit<T> where T: Clone {
 		self.limit
 	}
 
-	pub fn values(&self) -> &VecDeque<T> {
-		&self.values
-	}
-
 	pub fn top(&self) -> Result<&T, Error> {
 		self.values
 			.back()
 			.ok_or(Error("non-empty stack expected".into()))
 	}
 
-	pub fn top_mut(&mut self) -> Result<&mut T, Error> {
-		self.values
-			.back_mut()
-			.ok_or(Error("non-empty stack expected".into()))
-	}
-
 	pub fn get(&self, index: usize) -> Result<&T, Error> {
 		if index >= self.values.len() {
 			return Err(Error(format!("trying to get value at position {} on stack of size {}", index, self.values.len())));
@@ -80,19 +70,6 @@ impl<T> StackWithLimit<T> where T: Clone {
 		Ok(())
 	}
 
-	pub fn push_penultimate(&mut self, value: T) -> Result<(), Error> {
-		if self.values.is_empty() {
-			return Err(Error("trying to insert penultimate element into empty stack".into()));
-		}
-		self.push(value)?;
-
-		let last_index = self.values.len() - 1;
-		let penultimate_index = last_index - 1;
-		self.values.swap(last_index, penultimate_index);
-
-		Ok(())
-	}
-
 	pub fn pop(&mut self) -> Result<T, Error> {
 		self.values
 			.pop_back()

src/interpreter/host.rs

@@ -1,4 +1,4 @@
-use std::any::{Any, TypeId};
+use std::any::Any;
 use std::sync::Arc;
 use std::marker::PhantomData;
 use std::collections::HashMap;
@@ -370,59 +370,3 @@ impl<
 		FunctionType::new(vec![P1::value_type(), P2::value_type()], Ret::value_type())
 	}
 }
-
-use interpreter::UserError;
-use interpreter::store::MemoryId;
-
-// custom user error
-#[derive(Debug, Clone, PartialEq)]
-struct UserErrorWithCode {
-	error_code: i32,
-}
-
-impl ::std::fmt::Display for UserErrorWithCode {
-	fn fmt(&self, f: &mut ::std::fmt::Formatter) -> Result<(), ::std::fmt::Error> {
-		write!(f, "{}", self.error_code)
-	}
-}
-
-impl UserError for UserErrorWithCode {}
-
-// TODO: Rename to state
-// user function executor
-struct FunctionExecutor {
-	pub memory: MemoryId,
-	pub values: Vec<i32>,
-}
-
-// TODO: Remove this stuff
-fn build_env_module() -> HostModule {
-	let mut builder = HostModuleBuilder::<FunctionExecutor>::new();
-	builder.with_func2("add", |store: &mut Store, state: &mut FunctionExecutor, arg: i32, unused: i32| {
-		let memory_value = state.memory.resolve(store).get(0, 1).unwrap()[0];
-		let fn_argument_unused = unused as u8;
-		let fn_argument = arg as u8;
-		assert_eq!(fn_argument_unused, 0);
-
-		let sum = memory_value + fn_argument;
-		state.memory.resolve(store).set(0, &vec![sum]).unwrap();
-		state.values.push(sum as i32);
-		Ok(Some(sum as i32))
-	});
-	builder.with_func2("sub", |store: &mut Store, state: &mut FunctionExecutor, arg: i32, unused: i32| {
-		let memory_value = state.memory.resolve(store).get(0, 1).unwrap()[0];
-		let fn_argument_unused = unused as u8;
-		let fn_argument = arg as u8;
-		assert_eq!(fn_argument_unused, 0);
-
-		let diff = memory_value - fn_argument;
-		state.memory.resolve(store).set(0, &vec![diff]).unwrap();
-		state.values.push(diff as i32);
-		Ok(Some(diff as i32))
-	});
-	builder.with_func0("err", |store: &mut Store, state: &mut FunctionExecutor| -> Result<Option<i32>, Error> {
-		Err(Error::User(Box::new(UserErrorWithCode { error_code: 777 })))
-	});
-	builder.with_memory("memory", MemoryType::new(256, None));
-	builder.build()
-}

src/interpreter/memory.rs

@@ -205,7 +205,6 @@ mod tests {
 	use super::MemoryInstance;
 	use interpreter::Error;
 	use elements::MemoryType;
-	use std::sync::Arc;
 
 	fn create_memory(initial_content: &[u8]) -> MemoryInstance {
 		let mem = MemoryInstance::new(&MemoryType::new(1, Some(1)))

src/interpreter/runner.rs

@@ -1107,10 +1107,6 @@ impl FunctionContext {
 		&self.frame_stack
 	}
 
-	pub fn frame_stack_mut(&mut self) -> &mut StackWithLimit<BlockFrame> {
-		&mut self.frame_stack
-	}
-
 	pub fn push_frame(&mut self, labels: &HashMap<usize, usize>, frame_type: BlockFrameType, block_type: BlockType) -> Result<(), Error> {
 		let begin_position = self.position;
 		let branch_position = match frame_type {

src/interpreter/stack.rs

@@ -11,12 +11,6 @@ impl StackWithLimit<RuntimeValue> {
 		TryInto::try_into(value)
 	}
 
-	pub fn pop_pair(&mut self) -> Result<(RuntimeValue, RuntimeValue), InterpreterError> {
-		let right = self.pop()?;
-		let left = self.pop()?;
-		Ok((left, right))
-	}
-
 	pub fn pop_pair_as<T>(&mut self) -> Result<(T, T), InterpreterError>
 	where
 		RuntimeValue: TryInto<T, InterpreterError>,

src/interpreter/tests/basics.rs

@@ -1,15 +1,10 @@
 ///! Basic tests for instructions/constructions, missing in wabt tests
 
-use std::sync::Arc;
-use std::cell::RefCell;
-use std::collections::HashMap;
 use builder::module;
 use elements::{ExportEntry, Internal, ImportEntry, External, GlobalEntry, GlobalType,
-	InitExpr, ValueType, Opcodes, Opcode, FunctionType, TableType, MemoryType};
+	InitExpr, ValueType, Opcodes, Opcode, TableType, MemoryType};
 use interpreter::{Error, UserError, ProgramInstance};
-use interpreter::memory::MemoryInstance;
-use interpreter::value::{RuntimeValue, TryInto};
-use interpreter::variable::{VariableInstance, ExternalVariableValue, VariableType};
+use interpreter::value::RuntimeValue;
 use interpreter::host::{HostModuleBuilder, HostModule};
 use interpreter::store::{Store, MemoryId};
 use super::utils::program_with_default_env;
@@ -241,7 +236,7 @@ fn native_env_global() {
 
 	// try to add module, exporting non-existant env' variable => error
 	{
-		let mut host_module_builder = HostModuleBuilder::<State>::new();
+		let host_module_builder = HostModuleBuilder::<State>::new();
 		assert!(module_constructor(host_module_builder.build()).is_err());
 	}
 
@@ -278,7 +273,7 @@ fn native_custom_error() {
 			.build()
 		.build();
 
-	let module_instance = program.add_module("main", module, &mut state).unwrap();
+	program.add_module("main", module, &mut state).unwrap();
 	let user_error = match program.invoke_index(
 		"main",
 		0,

src/interpreter/tests/wabt.rs

@@ -2,7 +2,7 @@
 
 use builder::module;
 use elements::{ValueType, Opcodes, Opcode, BlockType, Local};
-use interpreter::{Error, ProgramInstance, ItemIndex};
+use interpreter::{Error, ProgramInstance};
 use interpreter::value::{RuntimeValue, TryInto};
 
 fn make_function_i32(body: Opcodes) -> ProgramInstance {
@@ -520,7 +520,7 @@ fn call_1() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(10));
 }
 
@@ -567,7 +567,7 @@ fn call_2() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(3628800));
 }
 
@@ -612,7 +612,7 @@ fn call_zero_args() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(43));
 }
 
@@ -658,7 +658,7 @@ fn callindirect_1() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 2, vec![RuntimeValue::I32(0)], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 2, vec![RuntimeValue::I32(1)], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 }
@@ -731,7 +731,7 @@ fn callindirect_2() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 3, vec![RuntimeValue::I32(10), RuntimeValue::I32(4), RuntimeValue::I32(0)], &mut ()).unwrap().unwrap(), RuntimeValue::I32(14));
 	assert_eq!(program.invoke_index("main", 3, vec![RuntimeValue::I32(10), RuntimeValue::I32(4), RuntimeValue::I32(1)], &mut ()).unwrap().unwrap(), RuntimeValue::I32(6));
 	match program.invoke_index("main", 3, vec![RuntimeValue::I32(10), RuntimeValue::I32(4), RuntimeValue::I32(2)], &mut ()) {
@@ -813,7 +813,7 @@ fn select() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![RuntimeValue::I32(0)], &mut ()).unwrap().unwrap(), RuntimeValue::I32(2));
 	assert_eq!(program.invoke_index("main", 0, vec![RuntimeValue::I32(1)], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 1, vec![RuntimeValue::I32(0)], &mut ()).unwrap().unwrap(), RuntimeValue::I64(2));
@@ -966,7 +966,7 @@ fn binary_i32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(3));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(16));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(21));
@@ -1126,7 +1126,7 @@ fn binary_i64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(3));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(16));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(21));
@@ -1216,7 +1216,7 @@ fn binary_f32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(5.000000));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(-9995.500000));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(-8487.187500));
@@ -1298,7 +1298,7 @@ fn binary_f64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(1111111110.000000));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(123400000000000007812762268812638756607430593436581896388608.000000));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(-15179717820000.000000));
@@ -1351,7 +1351,7 @@ fn cast() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(4.5));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1067450368)); // 3227516928
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(125.125000));
@@ -1617,7 +1617,7 @@ fn compare_i32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
@@ -1907,7 +1907,7 @@ fn compare_i64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
@@ -2091,7 +2091,7 @@ fn compare_f32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
@@ -2263,7 +2263,7 @@ fn compare_f64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
@@ -2331,7 +2331,7 @@ fn convert_i32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1));				// 4294967295
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-100));			// 4294967196
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1294967296));	// 3000000000
@@ -2404,7 +2404,7 @@ fn convert_i64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(4294967295));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(-1)); // 18446744073709551615
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
@@ -2462,7 +2462,7 @@ fn convert_f32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(-1.000000));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(4294967296.000000));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(12345679.000000));
@@ -2519,7 +2519,7 @@ fn convert_f64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(-1.000000));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(4294967295.000000));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(12345679.000000));
@@ -2579,7 +2579,7 @@ fn load_i32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1));
@@ -2655,7 +2655,7 @@ fn load_i64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(-1));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(-1));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(-1));
@@ -2685,7 +2685,7 @@ fn load_f32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(25.750000));
 }
 
@@ -2709,7 +2709,7 @@ fn load_f64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(1023.875000));
 }
 
@@ -2766,7 +2766,7 @@ fn store_i32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-16909061));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-859059511));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-123456));
@@ -2836,7 +2836,7 @@ fn store_i64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(4278058235));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(3435907785));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(4294843840));
@@ -2864,7 +2864,7 @@ fn store_f32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1069547520));
 }
 
@@ -2889,7 +2889,7 @@ fn store_f64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(-1064352256));
 }
 
@@ -2940,7 +2940,7 @@ fn unary_i32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(24));
@@ -2995,7 +2995,7 @@ fn unary_i64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 0, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(0));
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I64(56));
@@ -3094,7 +3094,7 @@ fn unary_f32() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(-100.000000));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F32(100.000000));
 	assert_eq!(program.invoke_index("main", 3, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));
@@ -3197,7 +3197,7 @@ fn unary_f64() {
 		.build();
 
 	let mut program = ProgramInstance::new();
-	let module = program.add_module("main", module, &mut ()).unwrap();
+	program.add_module("main", module, &mut ()).unwrap();
 	assert_eq!(program.invoke_index("main", 1, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(-100.000000));
 	assert_eq!(program.invoke_index("main", 2, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::F64(100.000000));
 	assert_eq!(program.invoke_index("main", 3, vec![], &mut ()).unwrap().unwrap(), RuntimeValue::I32(1));

src/interpreter/tests/wasm.rs

@@ -1,8 +1,6 @@
 use elements::deserialize_file;
 use elements::Module;
-use interpreter::ExecutionParams;
 use interpreter::value::RuntimeValue;
-use interpreter::module::{ItemIndex};
 use super::utils::program_with_default_env;
 
 #[test]
@@ -23,7 +21,7 @@ fn interpreter_inc_i32() {
 
     let module_result = program.add_module("main", module, &mut ());
 
-    let module = module_result
+    module_result
         .expect("Failed to initialize module");
 
     let retval = program.invoke_export("main", FUNCTION_NAME, args, &mut ()).expect("");
@@ -44,7 +42,7 @@ fn interpreter_accumulate_u8() {
     // Load the module-structure from wasm-file and add to program
     let module: Module =
         deserialize_file(WASM_FILE).expect("Failed to deserialize module from buffer");
-    let module = program
+    program
         .add_module("main", module, &mut ())
         .expect("Failed to initialize module");