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test(runtime-core) Test closures with a captured environment.

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This commit is contained in:
Ivan Enderlin 2019-11-04 15:21:09 +01:00
parent 3b34a9187a
commit a52b4b2280
1 changed files with 55 additions and 2 deletions
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57
lib/runtime-core-tests/tests/imports.rs
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@ -15,10 +15,12 @@ fn imported_functions_forms() {
(import "env" "callback_closure_with_env" (func $callback_closure_with_env (type $type)))
(import "env" "callback_fn_with_vmctx" (func $callback_fn_with_vmctx (type $type)))
(import "env" "callback_closure_with_vmctx" (func $callback_closure_with_vmctx (type $type)))
(import "env" "callback_closure_with_vmctx_and_env" (func $callback_closure_with_vmctx_and_env (type $type)))
(import "env" "callback_fn_trap" (func $callback_fn_trap (type $type)))
(import "env" "callback_closure_trap" (func $callback_closure_trap (type $type)))
(import "env" "callback_fn_trap_with_vmctx" (func $callback_fn_trap_with_vmctx (type $type)))
(import "env" "callback_closure_trap_with_vmctx" (func $callback_closure_trap_with_vmctx (type $type)))
(import "env" "callback_closure_trap_with_vmctx_and_env" (func $callback_closure_trap_with_vmctx_and_env (type $type)))
(func (export "function_fn") (type $type)
get_local 0
@ -40,6 +42,10 @@ fn imported_functions_forms() {
get_local 0
call $callback_closure_with_vmctx)
(func (export "function_closure_with_vmctx_and_env") (type $type)
get_local 0
call $callback_closure_with_vmctx_and_env)
(func (export "function_fn_trap") (type $type)
get_local 0
call $callback_fn_trap)
@ -54,7 +60,11 @@ fn imported_functions_forms() {
(func (export "function_closure_trap_with_vmctx") (type $type)
get_local 0
call $callback_closure_trap_with_vmctx))
call $callback_closure_trap_with_vmctx)
(func (export "function_closure_trap_with_vmctx_and_env") (type $type)
get_local 0
call $callback_closure_trap_with_vmctx_and_env))
"#;
let wasm_binary = wat2wasm(MODULE.as_bytes()).expect("WAST not valid or malformed");
@ -69,31 +79,67 @@ fn imported_functions_forms() {
let import_object = imports! {
"env" => {
"memory" => memory.clone(),
// Regular function.
"callback_fn" => Func::new(callback_fn),
// Closure without a captured environment.
"callback_closure" => Func::new(|n: i32| -> Result<i32, ()> {
Ok(n + 1)
}),
// Closure with a captured environment (a single variable + an instance of `Memory`).
"callback_closure_with_env" => Func::new(move |n: i32| -> Result<i32, ()> {
let shift = shift + memory.view::<i32>()[0].get();
Ok(shift + n + 1)
}),
// Regular function with an explicit `vmctx`.
"callback_fn_with_vmctx" => Func::new(callback_fn_with_vmctx),
// Closure without a captured environment but with an explicit `vmctx`.
"callback_closure_with_vmctx" => Func::new(|vmctx: &mut vm::Ctx, n: i32| -> Result<i32, ()> {
let memory = vmctx.memory(0);
let shift: i32 = memory.view()[0].get();
Ok(shift + n + 1)
}),
// Closure with a captured environment (a single variable) and with an explicit `vmctx`.
"callback_closure_with_vmctx_and_env" => Func::new(move |vmctx: &mut vm::Ctx, n: i32| -> Result<i32, ()> {
let memory = vmctx.memory(0);
let shift = shift + memory.view::<i32>()[0].get();
Ok(shift + n + 1)
}),
// Trap a regular function.
"callback_fn_trap" => Func::new(callback_fn_trap),
// Trap a closure without a captured environment.
"callback_closure_trap" => Func::new(|n: i32| -> Result<i32, String> {
Err(format!("bar {}", n + 1))
}),
// Trap a regular function with an explicit `vmctx`.
"callback_fn_trap_with_vmctx" => Func::new(callback_fn_trap_with_vmctx),
// Trap a closure without a captured environment but with an explicit `vmctx`.
"callback_closure_trap_with_vmctx" => Func::new(|vmctx: &mut vm::Ctx, n: i32| -> Result<i32, String> {
let memory = vmctx.memory(0);
let shift: i32 = memory.view()[0].get();
Err(format!("qux {}", shift + n + 1))
}),
// Trap a closure with a captured environment (a single variable) and with an explicit `vmctx`.
"callback_closure_trap_with_vmctx_and_env" => Func::new(move |vmctx: &mut vm::Ctx, n: i32| -> Result<i32, String> {
let memory = vmctx.memory(0);
let shift = shift + memory.view::<i32>()[0].get();
Err(format!("! {}", shift + n + 1))
}),
},
};
let instance = module.instantiate(&import_object).unwrap();
@ -151,9 +197,10 @@ fn imported_functions_forms() {
call_and_assert!(function_fn, Ok(2));
call_and_assert!(function_closure, Ok(2));
call_and_assert!(function_closure_with_env, Ok(2 + shift));
call_and_assert!(function_closure_with_env, Ok(2 + shift + SHIFT));
call_and_assert!(function_fn_with_vmctx, Ok(2 + SHIFT));
call_and_assert!(function_closure_with_vmctx, Ok(2 + SHIFT));
call_and_assert!(function_closure_with_vmctx_and_env, Ok(2 + shift + SHIFT));
call_and_assert!(
function_fn_trap,
Err(RuntimeError::Error {
@ -178,6 +225,12 @@ fn imported_functions_forms() {
data: Box::new(format!("qux {}", 2 + SHIFT))
})
);
call_and_assert!(
function_closure_trap_with_vmctx_and_env,
Err(RuntimeError::Error {
data: Box::new(format!("! {}", 2 + shift + SHIFT))
})
);
}
fn callback_fn(n: i32) -> Result<i32, ()> {