use anyhow::Result;
use wasmer::*;
#[test]
fn global_new() -> Result<()> {
let store = Store::default();
let global = Global::new(&store, Value::I32(10));
assert_eq!(
*global.ty(),
GlobalType {
ty: Type::I32,
mutability: Mutability::Const,
}
);
let global_mut = Global::new_mut(&store, Value::I32(10));
assert_eq!(
*global_mut.ty(),
GlobalType {
ty: Type::I32,
mutability: Mutability::Var,
}
);
Ok(())
}
#[test]
fn global_get() -> Result<()> {
let store = Store::default();
let global_i32 = Global::new(&store, Value::I32(10));
assert_eq!(global_i32.get(), Value::I32(10));
let global_i64 = Global::new(&store, Value::I64(20));
assert_eq!(global_i64.get(), Value::I64(20));
let global_f32 = Global::new(&store, Value::F32(10.0));
assert_eq!(global_f32.get(), Value::F32(10.0));
let global_f64 = Global::new(&store, Value::F64(20.0));
assert_eq!(global_f64.get(), Value::F64(20.0));
Ok(())
}
#[test]
fn global_set() -> Result<()> {
let store = Store::default();
let global_i32 = Global::new(&store, Value::I32(10));
assert!(global_i32.set(Value::I32(20)).is_err());
let global_i32_mut = Global::new_mut(&store, Value::I32(10));
assert!(global_i32_mut.set(Value::I64(20)).is_err());
global_i32_mut.set(Value::I32(20))?;
assert_eq!(global_i32_mut.get(), Value::I32(20));
Ok(())
}
#[test]
fn table_new() -> Result<()> {
let store = Store::default();
let table_type = TableType {
ty: Type::FuncRef,
minimum: 0,
maximum: None,
};
let f = Function::new_native(&store, || {});
let table = Table::new(&store, table_type, Value::FuncRef(f))?;
assert_eq!(*table.ty(), table_type);
Ok(())
}
#[test]
#[ignore]
fn table_get() -> Result<()> {
let store = Store::default();
let table_type = TableType {
ty: Type::FuncRef,
minimum: 0,
maximum: Some(1),
};
let f = Function::new_native(&store, |num: i32| num + 1);
let table = Table::new(&store, table_type, Value::FuncRef(f.clone()))?;
assert_eq!(*table.ty(), table_type);
let _elem = table.get(0).unwrap();
Ok(())
}
#[test]
#[ignore]
fn table_set() -> Result<()> {
Ok(())
}
#[test]
fn table_grow() -> Result<()> {
let store = Store::default();
let table_type = TableType {
ty: Type::FuncRef,
minimum: 0,
maximum: Some(10),
};
let f = Function::new_native(&store, |num: i32| num + 1);
let table = Table::new(&store, table_type, Value::FuncRef(f.clone()))?;
let old_len = table.grow(12, Value::FuncRef(f.clone()));
assert!(old_len.is_err());
let old_len = table.grow(5, Value::FuncRef(f.clone()))?;
assert_eq!(old_len, 0);
Ok(())
}
#[test]
#[ignore]
fn table_copy() -> Result<()> {
Ok(())
}
#[test]
fn memory_new() -> Result<()> {
let store = Store::default();
let memory_type = MemoryType {
shared: false,
minimum: Pages(0),
maximum: Some(Pages(10)),
};
let memory = Memory::new(&store, memory_type)?;
assert_eq!(memory.size(), Pages(0));
assert_eq!(*memory.ty(), memory_type);
Ok(())
}
#[test]
fn memory_grow() -> Result<()> {
let store = Store::default();
let desc = MemoryType::new(Pages(10), Some(Pages(16)), false);
let memory = Memory::new(&store, desc)?;
assert_eq!(memory.size(), Pages(10));
let result = memory.grow(Pages(2)).unwrap();
assert_eq!(result, Pages(10));
assert_eq!(memory.size(), Pages(12));
let result = memory.grow(Pages(10));
assert_eq!(
result,
Err(MemoryError::CouldNotGrow {
current: 12.into(),
attempted_delta: 10.into(),
})
);
let bad_desc = MemoryType::new(Pages(15), Some(Pages(10)), false);
let bad_result = Memory::new(&store, bad_desc);
assert!(matches!(bad_result, Err(MemoryError::InvalidMemory { .. })));
Ok(())
}
#[test]
fn function_new() -> Result<()> {
let store = Store::default();
let function = Function::new_native(&store, || {});
assert_eq!(function.ty().clone(), FunctionType::new(vec![], vec![]));
let function = Function::new_native(&store, |_a: i32| {});
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![Type::I32], vec![])
);
let function = Function::new_native(&store, |_a: i32, _b: i64, _c: f32, _d: f64| {});
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![Type::I32, Type::I64, Type::F32, Type::F64], vec![])
);
let function = Function::new_native(&store, || -> i32 { 1 });
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![], vec![Type::I32])
);
let function = Function::new_native(&store, || -> (i32, i64, f32, f64) { (1, 2, 3.0, 4.0) });
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![], vec![Type::I32, Type::I64, Type::F32, Type::F64])
);
Ok(())
}
#[test]
fn function_new_env() -> Result<()> {
let store = Store::default();
#[derive(Clone, WasmerEnv)]
struct MyEnv {};
let my_env = MyEnv {};
let function = Function::new_native_with_env(&store, my_env.clone(), |_env: &MyEnv| {});
assert_eq!(function.ty().clone(), FunctionType::new(vec![], vec![]));
let function =
Function::new_native_with_env(&store, my_env.clone(), |_env: &MyEnv, _a: i32| {});
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![Type::I32], vec![])
);
let function = Function::new_native_with_env(
&store,
my_env.clone(),
|_env: &MyEnv, _a: i32, _b: i64, _c: f32, _d: f64| {},
);
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![Type::I32, Type::I64, Type::F32, Type::F64], vec![])
);
let function =
Function::new_native_with_env(&store, my_env.clone(), |_env: &MyEnv| -> i32 { 1 });
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![], vec![Type::I32])
);
let function = Function::new_native_with_env(
&store,
my_env.clone(),
|_env: &MyEnv| -> (i32, i64, f32, f64) { (1, 2, 3.0, 4.0) },
);
assert_eq!(
function.ty().clone(),
FunctionType::new(vec![], vec![Type::I32, Type::I64, Type::F32, Type::F64])
);
Ok(())
}
#[test]
fn function_new_dynamic() -> Result<()> {
let store = Store::default();
let function_type = FunctionType::new(vec![], vec![]);
let function = Function::new(&store, &function_type, |_values: &[Value]| unimplemented!());
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![Type::I32], vec![]);
let function = Function::new(&store, &function_type, |_values: &[Value]| unimplemented!());
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![Type::I32, Type::I64, Type::F32, Type::F64], vec![]);
let function = Function::new(&store, &function_type, |_values: &[Value]| unimplemented!());
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![], vec![Type::I32]);
let function = Function::new(&store, &function_type, |_values: &[Value]| unimplemented!());
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![], vec![Type::I32, Type::I64, Type::F32, Type::F64]);
let function = Function::new(&store, &function_type, |_values: &[Value]| unimplemented!());
assert_eq!(function.ty().clone(), function_type);
let function_type = ([Type::V128], [Type::I32, Type::F32, Type::F64]);
let function = Function::new(&store, function_type, |_values: &[Value]| unimplemented!());
assert_eq!(function.ty().params(), [Type::V128]);
assert_eq!(function.ty().results(), [Type::I32, Type::F32, Type::F64]);
Ok(())
}
#[test]
fn function_new_dynamic_env() -> Result<()> {
let store = Store::default();
#[derive(Clone, WasmerEnv)]
struct MyEnv {};
let my_env = MyEnv {};
let function_type = FunctionType::new(vec![], vec![]);
let function = Function::new_with_env(
&store,
&function_type,
my_env.clone(),
|_env: &MyEnv, _values: &[Value]| unimplemented!(),
);
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![Type::I32], vec![]);
let function = Function::new_with_env(
&store,
&function_type,
my_env.clone(),
|_env: &MyEnv, _values: &[Value]| unimplemented!(),
);
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![Type::I32, Type::I64, Type::F32, Type::F64], vec![]);
let function = Function::new_with_env(
&store,
&function_type,
my_env.clone(),
|_env: &MyEnv, _values: &[Value]| unimplemented!(),
);
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![], vec![Type::I32]);
let function = Function::new_with_env(
&store,
&function_type,
my_env.clone(),
|_env: &MyEnv, _values: &[Value]| unimplemented!(),
);
assert_eq!(function.ty().clone(), function_type);
let function_type = FunctionType::new(vec![], vec![Type::I32, Type::I64, Type::F32, Type::F64]);
let function = Function::new_with_env(
&store,
&function_type,
my_env.clone(),
|_env: &MyEnv, _values: &[Value]| unimplemented!(),
);
assert_eq!(function.ty().clone(), function_type);
let function_type = ([Type::V128], [Type::I32, Type::F32, Type::F64]);
let function = Function::new_with_env(
&store,
function_type,
my_env.clone(),
|_env: &MyEnv, _values: &[Value]| unimplemented!(),
);
assert_eq!(function.ty().params(), [Type::V128]);
assert_eq!(function.ty().results(), [Type::I32, Type::F32, Type::F64]);
Ok(())
}
#[test]
fn native_function_works() -> Result<()> {
let store = Store::default();
let function = Function::new_native(&store, || {});
let native_function: NativeFunc<(), ()> = function.native().unwrap();
let result = native_function.call();
assert!(result.is_ok());
let function = Function::new_native(&store, |a: i32| -> i32 { a + 1 });
let native_function: NativeFunc<i32, i32> = function.native().unwrap();
assert_eq!(native_function.call(3).unwrap(), 4);
fn rust_abi(a: i32, b: i64, c: f32, d: f64) -> u64 {
(a as u64 * 1000) + (b as u64 * 100) + (c as u64 * 10) + (d as u64)
}
let function = Function::new_native(&store, rust_abi);
let native_function: NativeFunc<(i32, i64, f32, f64), u64> = function.native().unwrap();
assert_eq!(native_function.call(8, 4, 1.5, 5.).unwrap(), 8415);
let function = Function::new_native(&store, || -> i32 { 1 });
let native_function: NativeFunc<(), i32> = function.native().unwrap();
assert_eq!(native_function.call().unwrap(), 1);
let function = Function::new_native(&store, |_a: i32| {});
let native_function: NativeFunc<i32, ()> = function.native().unwrap();
assert!(native_function.call(4).is_ok());
let function = Function::new_native(&store, || -> (i32, i64, f32, f64) { (1, 2, 3.0, 4.0) });
let native_function: NativeFunc<(), (i32, i64, f32, f64)> = function.native().unwrap();
assert_eq!(native_function.call().unwrap(), (1, 2, 3.0, 4.0));
Ok(())
}
#[test]
fn function_outlives_instance() -> Result<()> {
let store = Store::default();
let wat = r#"(module
(type $sum_t (func (param i32 i32) (result i32)))
(func $sum_f (type $sum_t) (param $x i32) (param $y i32) (result i32)
local.get $x
local.get $y
i32.add)
(export "sum" (func $sum_f)))
"#;
let f = {
let module = Module::new(&store, wat)?;
let instance = Instance::new(&module, &imports! {})?;
let f: NativeFunc<(i32, i32), i32> = instance.exports.get_native_function("sum")?;
assert_eq!(f.call(4, 5)?, 9);
f
};
assert_eq!(f.call(4, 5)?, 9);
Ok(())
}
#[test]
fn manually_generate_wasmer_env() -> Result<()> {
let store = Store::default();
#[derive(WasmerEnv, Clone)]
struct MyEnv {
val: u32,
memory: LazyInit<Memory>,
}
fn host_function(env: &mut MyEnv, arg1: u32, arg2: u32) -> u32 {
env.val + arg1 + arg2
}
let mut env = MyEnv {
val: 5,
memory: LazyInit::new(),
};
let result = host_function(&mut env, 7, 9);
assert_eq!(result, 21);
let memory = Memory::new(&store, MemoryType::new(0, None, false))?;
env.memory.initialize(memory);
let result = host_function(&mut env, 1, 2);
assert_eq!(result, 8);
Ok(())
}