mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-14 22:55:40 +00:00
295 lines
10 KiB
Rust
295 lines
10 KiB
Rust
use wasmer_runtime_core::{
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compile_with, error::RuntimeError, imports, memory::Memory, typed_func::Func,
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types::MemoryDescriptor, units::Pages, vm, Instance,
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};
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use wasmer_runtime_core_tests::{get_compiler, wat2wasm};
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macro_rules! call_and_assert {
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($instance:ident, $function:ident, $expected_value:expr) => {
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let $function: Func<i32, i32> = $instance.func(stringify!($function)).unwrap();
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let result = $function.call(1);
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match (result, $expected_value) {
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(Ok(value), expected_value) => assert_eq!(
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Ok(value),
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expected_value,
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concat!("Expected right when calling `", stringify!($function), "`.")
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),
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(
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Err(RuntimeError::Error { data }),
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Err(RuntimeError::Error {
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data: expected_data,
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}),
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) => {
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if let (Some(data), Some(expected_data)) = (
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data.downcast_ref::<&str>(),
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expected_data.downcast_ref::<&str>(),
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) {
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assert_eq!(
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data, expected_data,
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concat!("Expected right when calling `", stringify!($function), "`.")
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)
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} else if let (Some(data), Some(expected_data)) = (
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data.downcast_ref::<String>(),
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expected_data.downcast_ref::<String>(),
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) {
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assert_eq!(
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data, expected_data,
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concat!("Expected right when calling `", stringify!($function), "`.")
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)
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} else {
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assert!(false, "Unexpected error, cannot compare it.")
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}
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}
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(result, expected_value) => assert!(
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false,
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format!(
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"Unexpected assertion for `{}`: left = `{:?}`, right = `{:?}`.",
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stringify!($function),
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result,
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expected_value
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)
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),
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}
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};
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}
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/// The shift that is set in the instance memory. The value is part of
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/// the result returned by the imported functions if the memory is
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/// read properly.
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const SHIFT: i32 = 10;
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/// The shift that is captured in the environment of a closure. The
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/// value is part of the result returned by the imported function if
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/// the closure captures its environment properly.
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#[allow(non_upper_case_globals)]
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const shift: i32 = 100;
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fn imported_functions_forms(test: &dyn Fn(&Instance)) {
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const MODULE: &str = r#"
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(module
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(type $type (func (param i32) (result i32)))
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(import "env" "memory" (memory 1 1))
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(import "env" "callback_fn" (func $callback_fn (type $type)))
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(import "env" "callback_closure" (func $callback_closure (type $type)))
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(import "env" "callback_closure_with_env" (func $callback_closure_with_env (type $type)))
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(import "env" "callback_fn_with_vmctx" (func $callback_fn_with_vmctx (type $type)))
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(import "env" "callback_closure_with_vmctx" (func $callback_closure_with_vmctx (type $type)))
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(import "env" "callback_closure_with_vmctx_and_env" (func $callback_closure_with_vmctx_and_env (type $type)))
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(import "env" "callback_fn_trap" (func $callback_fn_trap (type $type)))
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(import "env" "callback_closure_trap" (func $callback_closure_trap (type $type)))
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(import "env" "callback_fn_trap_with_vmctx" (func $callback_fn_trap_with_vmctx (type $type)))
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(import "env" "callback_closure_trap_with_vmctx" (func $callback_closure_trap_with_vmctx (type $type)))
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(import "env" "callback_closure_trap_with_vmctx_and_env" (func $callback_closure_trap_with_vmctx_and_env (type $type)))
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(func (export "function_fn") (type $type)
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get_local 0
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call $callback_fn)
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(func (export "function_closure") (type $type)
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get_local 0
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call $callback_closure)
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(func (export "function_closure_with_env") (type $type)
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get_local 0
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call $callback_closure_with_env)
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(func (export "function_fn_with_vmctx") (type $type)
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get_local 0
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call $callback_fn_with_vmctx)
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(func (export "function_closure_with_vmctx") (type $type)
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get_local 0
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call $callback_closure_with_vmctx)
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(func (export "function_closure_with_vmctx_and_env") (type $type)
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get_local 0
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call $callback_closure_with_vmctx_and_env)
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(func (export "function_fn_trap") (type $type)
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get_local 0
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call $callback_fn_trap)
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(func (export "function_closure_trap") (type $type)
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get_local 0
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call $callback_closure_trap)
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(func (export "function_fn_trap_with_vmctx") (type $type)
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get_local 0
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call $callback_fn_trap_with_vmctx)
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(func (export "function_closure_trap_with_vmctx") (type $type)
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get_local 0
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call $callback_closure_trap_with_vmctx)
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(func (export "function_closure_trap_with_vmctx_and_env") (type $type)
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get_local 0
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call $callback_closure_trap_with_vmctx_and_env))
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"#;
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let wasm_binary = wat2wasm(MODULE.as_bytes()).expect("WAST not valid or malformed");
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let module = compile_with(&wasm_binary, &get_compiler()).unwrap();
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let memory_descriptor = MemoryDescriptor::new(Pages(1), Some(Pages(1)), false).unwrap();
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let memory = Memory::new(memory_descriptor).unwrap();
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memory.view()[0].set(SHIFT);
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let import_object = imports! {
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"env" => {
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"memory" => memory.clone(),
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// Regular function.
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"callback_fn" => Func::new(callback_fn),
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// Closure without a captured environment.
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"callback_closure" => Func::new(|n: i32| -> Result<i32, ()> {
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Ok(n + 1)
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}),
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// Closure with a captured environment (a single variable + an instance of `Memory`).
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"callback_closure_with_env" => Func::new(move |n: i32| -> Result<i32, ()> {
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let shift_ = shift + memory.view::<i32>()[0].get();
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Ok(shift_ + n + 1)
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}),
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// Regular function with an explicit `vmctx`.
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"callback_fn_with_vmctx" => Func::new(callback_fn_with_vmctx),
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// Closure without a captured environment but with an explicit `vmctx`.
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"callback_closure_with_vmctx" => Func::new(|vmctx: &mut vm::Ctx, n: i32| -> Result<i32, ()> {
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let memory = vmctx.memory(0);
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let shift_: i32 = memory.view()[0].get();
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Ok(shift_ + n + 1)
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}),
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// Closure with a captured environment (a single variable) and with an explicit `vmctx`.
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"callback_closure_with_vmctx_and_env" => Func::new(move |vmctx: &mut vm::Ctx, n: i32| -> Result<i32, ()> {
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let memory = vmctx.memory(0);
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let shift_ = shift + memory.view::<i32>()[0].get();
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Ok(shift_ + n + 1)
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}),
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// Trap a regular function.
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"callback_fn_trap" => Func::new(callback_fn_trap),
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// Trap a closure without a captured environment.
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"callback_closure_trap" => Func::new(|n: i32| -> Result<i32, String> {
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Err(format!("bar {}", n + 1))
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}),
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// Trap a regular function with an explicit `vmctx`.
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"callback_fn_trap_with_vmctx" => Func::new(callback_fn_trap_with_vmctx),
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// Trap a closure without a captured environment but with an explicit `vmctx`.
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"callback_closure_trap_with_vmctx" => Func::new(|vmctx: &mut vm::Ctx, n: i32| -> Result<i32, String> {
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let memory = vmctx.memory(0);
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let shift_: i32 = memory.view()[0].get();
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Err(format!("qux {}", shift_ + n + 1))
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}),
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// Trap a closure with a captured environment (a single variable) and with an explicit `vmctx`.
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"callback_closure_trap_with_vmctx_and_env" => Func::new(move |vmctx: &mut vm::Ctx, n: i32| -> Result<i32, String> {
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let memory = vmctx.memory(0);
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let shift_ = shift + memory.view::<i32>()[0].get();
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Err(format!("! {}", shift_ + n + 1))
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}),
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},
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};
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let instance = module.instantiate(&import_object).unwrap();
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test(&instance);
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}
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fn callback_fn(n: i32) -> Result<i32, ()> {
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Ok(n + 1)
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}
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fn callback_fn_with_vmctx(vmctx: &mut vm::Ctx, n: i32) -> Result<i32, ()> {
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let memory = vmctx.memory(0);
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let shift_: i32 = memory.view()[0].get();
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Ok(shift_ + n + 1)
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}
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fn callback_fn_trap(n: i32) -> Result<i32, String> {
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Err(format!("foo {}", n + 1))
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}
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fn callback_fn_trap_with_vmctx(vmctx: &mut vm::Ctx, n: i32) -> Result<i32, String> {
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let memory = vmctx.memory(0);
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let shift_: i32 = memory.view()[0].get();
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Err(format!("baz {}", shift_ + n + 1))
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}
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macro_rules! test {
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($test_name:ident, $function:ident, $expected_value:expr) => {
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#[test]
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fn $test_name() {
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imported_functions_forms(&|instance| {
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call_and_assert!(instance, $function, $expected_value);
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});
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}
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};
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}
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test!(test_fn, function_fn, Ok(2));
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test!(test_closure, function_closure, Ok(2));
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test!(
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test_closure_with_env,
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function_closure_with_env,
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Ok(2 + shift + SHIFT)
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);
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test!(test_fn_with_vmctx, function_fn_with_vmctx, Ok(2 + SHIFT));
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test!(
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test_closure_with_vmctx,
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function_closure_with_vmctx,
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Ok(2 + SHIFT)
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);
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test!(
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test_closure_with_vmctx_and_env,
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function_closure_with_vmctx_and_env,
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Ok(2 + shift + SHIFT)
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);
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test!(
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test_fn_trap,
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function_fn_trap,
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Err(RuntimeError::Error {
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data: Box::new(format!("foo {}", 2))
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})
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);
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test!(
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test_closure_trap,
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function_closure_trap,
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Err(RuntimeError::Error {
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data: Box::new(format!("bar {}", 2))
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})
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);
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test!(
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test_fn_trap_with_vmctx,
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function_fn_trap_with_vmctx,
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Err(RuntimeError::Error {
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data: Box::new(format!("baz {}", 2 + SHIFT))
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})
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);
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test!(
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test_closure_trap_with_vmctx,
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function_closure_trap_with_vmctx,
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Err(RuntimeError::Error {
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data: Box::new(format!("qux {}", 2 + SHIFT))
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})
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);
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test!(
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test_closure_trap_with_vmctx_and_env,
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function_closure_trap_with_vmctx_and_env,
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Err(RuntimeError::Error {
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data: Box::new(format!("! {}", 2 + shift + SHIFT))
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})
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);
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