mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 14:25:32 +00:00
713 lines
26 KiB
Rust
713 lines
26 KiB
Rust
//! This file will run at build time to autogenerate Rust tests based on
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//! WebAssembly spec tests. It will convert the files indicated in TESTS
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//! from "/spectests/{MODULE}.wast" to "/src/spectests/{MODULE}.rs".
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use std::collections::HashMap;
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use std::fs;
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use std::path::PathBuf;
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use wabt::script::{Action, Command, CommandKind, ModuleBinary, ScriptParser, Value};
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use wabt::wasm2wat;
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static BANNER: &str = "// Rust test file autogenerated with cargo build (build/spectests.rs).
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// Please do NOT modify it by hand, as it will be reset on next build.\n";
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const TESTS: [&str; 60] = [
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"spectests/address.wast",
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"spectests/align.wast",
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"spectests/binary.wast",
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"spectests/block.wast",
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"spectests/br.wast",
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"spectests/br_if.wast",
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"spectests/br_table.wast",
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"spectests/break_drop.wast",
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"spectests/call.wast",
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"spectests/call_indirect.wast",
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"spectests/comments.wast",
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"spectests/const_.wast",
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"spectests/conversions.wast",
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"spectests/custom.wast",
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"spectests/data.wast",
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"spectests/elem.wast",
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"spectests/endianness.wast",
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"spectests/exports.wast",
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"spectests/f32_.wast",
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"spectests/f32_bitwise.wast",
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"spectests/f32_cmp.wast",
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"spectests/f64_.wast",
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"spectests/f64_bitwise.wast",
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"spectests/f64_cmp.wast",
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"spectests/fac.wast",
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"spectests/float_exprs.wast",
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"spectests/float_literals.wast",
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"spectests/float_memory.wast",
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"spectests/float_misc.wast",
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"spectests/forward.wast",
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"spectests/func.wast",
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"spectests/func_ptrs.wast",
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"spectests/get_local.wast",
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"spectests/globals.wast",
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"spectests/i32_.wast",
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"spectests/i64_.wast",
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"spectests/if_.wast",
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"spectests/int_exprs.wast",
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"spectests/int_literals.wast",
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"spectests/labels.wast",
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"spectests/left_to_right.wast",
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"spectests/loop_.wast",
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"spectests/memory.wast",
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"spectests/memory_grow.wast",
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"spectests/memory_redundancy.wast",
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"spectests/memory_trap.wast",
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"spectests/nop.wast",
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"spectests/return_.wast",
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"spectests/select.wast",
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"spectests/set_local.wast",
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"spectests/stack.wast",
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"spectests/start.wast",
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"spectests/store_retval.wast",
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"spectests/switch.wast",
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"spectests/tee_local.wast",
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"spectests/token.wast",
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"spectests/traps.wast",
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"spectests/typecheck.wast",
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"spectests/types.wast",
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"spectests/unwind.wast",
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];
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fn wabt2rust_type(v: &Value) -> String {
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match v {
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Value::I32(_v) => format!("i32"),
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Value::I64(_v) => format!("i64"),
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Value::F32(_v) => format!("f32"),
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Value::F64(_v) => format!("f64"),
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}
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}
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fn wabt2rust_type_destructure(v: &Value, placeholder: &str) -> String {
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match v {
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Value::I32(_v) => format!("Value::I32({})", placeholder),
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Value::I64(_v) => format!("Value::I64({})", placeholder),
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Value::F32(_v) => format!("Value::F32({})", placeholder),
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Value::F64(_v) => format!("Value::F64({})", placeholder),
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}
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}
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fn is_nan(v: &Value) -> bool {
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if let Value::F32(v) = v {
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return v.is_nan();
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} else if let Value::F64(v) = v {
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return v.is_nan();
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}
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return false;
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}
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fn wabt2rust_value_bare(v: &Value) -> String {
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match v {
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Value::I32(v) => format!("{:?} as i32", v),
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Value::I64(v) => format!("{:?} as i64", v),
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Value::F32(v) => {
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if v.is_infinite() {
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if v.is_sign_negative() {
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"f32::NEG_INFINITY".to_string()
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} else {
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"f32::INFINITY".to_string()
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}
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} else if v.is_nan() {
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// Support for non-canonical NaNs
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format!("f32::from_bits({:?})", v.to_bits())
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} else {
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format!("{:?} as f32", v)
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}
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}
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Value::F64(v) => {
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if v.is_infinite() {
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if v.is_sign_negative() {
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"f64::NEG_INFINITY".to_string()
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} else {
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"f64::INFINITY".to_string()
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}
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} else if v.is_nan() {
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format!("f64::from_bits({:?})", v.to_bits())
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} else {
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format!("{:?} as f64", v)
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}
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}
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}
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}
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fn wabt2rust_value(v: &Value) -> String {
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match v {
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Value::I32(v) => format!("Value::I32({:?} as i32)", v),
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Value::I64(v) => format!("Value::I64({:?} as i64)", v),
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Value::F32(v) => {
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if v.is_infinite() {
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if v.is_sign_negative() {
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"Value::F32(f32::NEG_INFINITY)".to_string()
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} else {
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"Value::F32(f32::INFINITY)".to_string()
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}
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} else if v.is_nan() {
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// Support for non-canonical NaNs
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format!("Value::F32(f32::from_bits({:?}) as u32)", v.to_bits())
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} else {
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format!("Value::F32(({:?}f32).to_bits())", v)
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}
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}
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Value::F64(v) => {
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if v.is_infinite() {
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if v.is_sign_negative() {
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"Value::F64(f64::NEG_INFINITY)".to_string()
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} else {
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"Value::F64(f64::INFINITY)".to_string()
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}
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} else if v.is_nan() {
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format!("Value::F64(f64::from_bits({:?}) as u64)", v.to_bits())
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} else {
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format!("Value::F64(({:?}f64).to_bits())", v)
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}
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}
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}
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}
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struct WastTestGenerator {
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last_module: i32,
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last_line: u64,
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command_no: i32,
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filename: String,
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script_parser: ScriptParser,
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module_calls: HashMap<i32, Vec<String>>,
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buffer: String,
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}
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impl WastTestGenerator {
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fn new(path: &PathBuf) -> Self {
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let filename = path.file_name().unwrap().to_str().unwrap();
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let source = fs::read(&path).unwrap();
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let script: ScriptParser = ScriptParser::from_source_and_name(&source, filename).unwrap();
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let buffer = String::new();
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WastTestGenerator {
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last_module: 0,
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last_line: 0,
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command_no: 0,
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filename: filename.to_string(),
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script_parser: script,
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buffer: buffer,
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module_calls: HashMap::new(),
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}
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}
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fn consume(&mut self) {
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self.buffer.push_str(BANNER);
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self.buffer.push_str(&format!(
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"// Test based on spectests/{}
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#![allow(
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warnings,
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dead_code
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)]
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use wabt::wat2wasm;
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use wasmer_runtime::types::Value;
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use wasmer_runtime::{{Instance, Module}};
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use wasmer_clif_backend::CraneliftCompiler;
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use crate::_common::{{
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spectest_importobject,
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NaNCheck,
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}};\n\n",
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self.filename
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));
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while let Some(Command { line, kind }) = &self.script_parser.next().unwrap() {
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self.last_line = line.clone();
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self.buffer
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.push_str(&format!("\n// Line {}\n", self.last_line));
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self.visit_command(&kind);
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self.command_no = self.command_no + 1;
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}
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for n in 1..self.last_module + 1 {
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self.flush_module_calls(n);
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}
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}
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fn command_name(&self) -> String {
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format!("c{}_l{}", self.command_no, self.last_line)
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}
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fn flush_module_calls(&mut self, module: i32) {
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let calls: Vec<String> = self
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.module_calls
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.entry(module)
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.or_insert(Vec::new())
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.iter()
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.map(|call_str| format!("{}(&mut instance);", call_str))
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.collect();
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if calls.len() > 0 {
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self.buffer.push_str(
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format!(
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"\n#[test]
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fn test_module_{}() {{
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let mut instance = create_module_{}();
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// We group the calls together
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{}
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}}\n",
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module,
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module,
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calls.join("\n ")
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)
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.as_str(),
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);
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}
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self.module_calls.remove(&module);
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}
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fn visit_module(&mut self, module: &ModuleBinary, _name: &Option<String>) {
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let wasm_binary: Vec<u8> = module.clone().into_vec();
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let wast_string = wasm2wat(wasm_binary).expect("Can't convert back to wasm");
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let last_module = self.last_module;
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self.flush_module_calls(last_module);
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self.last_module = self.last_module + 1;
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// self.module_calls.insert(self.last_module, vec![]);
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self.buffer.push_str(
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format!(
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"fn create_module_{}() -> Instance {{
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let module_str = \"{}\";
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let wasm_binary = wat2wasm(module_str.as_bytes()).expect(\"WAST not valid or malformed\");
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let module = wasmer_runtime::compile(&wasm_binary[..], &CraneliftCompiler::new()).expect(\"WASM can't be compiled\");
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module.instantiate(&spectest_importobject()).expect(\"WASM can't be instantiated\")
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}}\n",
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self.last_module,
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// We do this to ident four spaces, so it looks aligned to the function body
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wast_string
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.replace("\n", "\n ")
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.replace("\\", "\\\\")
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.replace("\"", "\\\""),
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)
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.as_str(),
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);
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// We set the start call to the module
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let start_module_call = format!("start_module_{}", self.last_module);
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self.buffer.push_str(
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format!(
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"\nfn {}(instance: &mut Instance) {{
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// TODO Review is explicit start needed? Start now called in runtime::Instance::new()
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//instance.start();
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}}\n",
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start_module_call
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)
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.as_str(),
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);
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self.module_calls
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.entry(self.last_module)
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.or_insert(Vec::new())
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.push(start_module_call);
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}
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fn visit_assert_invalid(&mut self, module: &ModuleBinary) {
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let wasm_binary: Vec<u8> = module.clone().into_vec();
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// let wast_string = wasm2wat(wasm_binary).expect("Can't convert back to wasm");
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let command_name = self.command_name();
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self.buffer.push_str(
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format!(
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"#[test]
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fn {}_assert_invalid() {{
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let wasm_binary = {:?};
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let module = wasmer_runtime::compile(wasm_binary, &CraneliftCompiler::new());
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assert!(module.is_err(), \"WASM should not compile as is invalid\");
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}}\n",
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command_name,
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wasm_binary,
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// We do this to ident four spaces back
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// String::from_utf8_lossy(&wasm_binary),
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// wast_string.replace("\n", "\n "),
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)
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.as_str(),
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);
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}
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// TODO: Refactor repetitive code
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fn visit_assert_return_arithmetic_nan(&mut self, action: &Action) {
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match action {
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Action::Invoke {
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module: _,
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field,
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args,
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} => {
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// let return_type = wabt2rust_type(&args[0]);
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// let func_return = format!(" -> {}", return_type);
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let assertion = String::from("assert!(result.is_quiet_nan())");
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// We map the arguments provided into the raw Arguments provided
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// to libffi
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// let args_types: Vec<String> = args.iter().map(wabt2rust_type).collect();
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// args_types.push("&Instance".to_string());
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let args_values: Vec<String> = args.iter().map(wabt2rust_value).collect();
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// args_values.push("&result_object.instance".to_string());
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let func_name = format!("{}_assert_return_arithmetic_nan", self.command_name());
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self.buffer.push_str(
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format!(
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"fn {func_name}(instance: &mut Instance) {{
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println!(\"Executing function {{}}\", \"{func_name}\");
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let result = instance.call(\"{field}\", &[{args_values}]).unwrap().expect(\"Missing result in {func_name}\");
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{assertion}
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}}\n",
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func_name=func_name,
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field=field,
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args_values=args_values.join(", "),
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assertion=assertion,
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)
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.as_str(),
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);
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// field=field,
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// args_types=args_types.join(", "),
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// func_return=func_return,
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self.module_calls
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.entry(self.last_module)
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.or_insert(Vec::new())
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.push(func_name);
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// let mut module_calls = self.module_calls.get(&self.last_module).unwrap();
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// module_calls.push(func_name);
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}
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_ => {}
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};
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}
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// PROBLEM: Im assuming the return type from the first argument type
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// and wabt does gives us the `expected` result
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// TODO: Refactor repetitive code
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fn visit_assert_return_canonical_nan(&mut self, action: &Action) {
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match action {
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Action::Invoke {
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module: _,
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field,
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args,
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} => {
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let _return_type = match &field.as_str() {
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&"f64.promote_f32" => String::from("f64"),
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&"f32.promote_f64" => String::from("f32"),
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_ => wabt2rust_type(&args[0]),
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};
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// let func_return = format!(" -> {}", return_type);
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let assertion = String::from("assert!(result.is_quiet_nan())");
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// We map the arguments provided into the raw Arguments provided
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// to libffi
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// let args_types: Vec<String> = args.iter().map(wabt2rust_type).collect();
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// args_types.push("&Instance".to_string());
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let args_values: Vec<String> = args.iter().map(wabt2rust_value).collect();
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// args_values.push("&result_object.instance".to_string());
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let func_name = format!("{}_assert_return_canonical_nan", self.command_name());
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self.buffer.push_str(
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format!(
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"fn {func_name}(instance: &mut Instance) {{
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println!(\"Executing function {{}}\", \"{func_name}\");
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let result = instance.call(\"{field}\", &[{args_values}]).unwrap().expect(\"Missing result in {func_name}\");
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{assertion}
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}}\n",
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func_name=func_name,
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field=field,
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args_values=args_values.join(", "),
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assertion=assertion,
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)
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.as_str(),
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);
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self.module_calls
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.entry(self.last_module)
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.or_insert(Vec::new())
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.push(func_name);
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// let mut module_calls = self.module_calls.get(&self.last_module).unwrap();
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// module_calls.push(func_name);
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}
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_ => {}
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};
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}
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fn visit_assert_malformed(&mut self, module: &ModuleBinary) {
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let wasm_binary: Vec<u8> = module.clone().into_vec();
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let command_name = self.command_name();
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// let wast_string = wasm2wat(wasm_binary).expect("Can't convert back to wasm");
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self.buffer.push_str(
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format!(
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"#[test]
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fn {}_assert_malformed() {{
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let wasm_binary = {:?};
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let compilation = wasmer_runtime::compile(wasm_binary, &CraneliftCompiler::new());
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assert!(compilation.is_err(), \"WASM should not compile as is malformed\");
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}}\n",
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command_name,
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wasm_binary,
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// We do this to ident four spaces back
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// String::from_utf8_lossy(&wasm_binary),
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// wast_string.replace("\n", "\n "),
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)
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.as_str(),
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);
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}
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// TODO: Refactor repetitive code
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fn visit_action(&mut self, action: &Action, expected: Option<&Vec<Value>>) -> Option<String> {
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match action {
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Action::Invoke {
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module: _,
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field,
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args,
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} => {
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let (_func_return, assertion) = match expected {
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Some(expected) => {
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let func_return = if expected.len() > 0 {
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format!(" -> {}", wabt2rust_type(&expected[0]))
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} else {
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"".to_string()
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};
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let expected_result = if expected.len() > 0 {
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wabt2rust_value_bare(&expected[0])
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} else {
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"should not use this expect result".to_string()
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};
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let expected_some_result = if expected.len() > 0 {
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format!("Some({})", wabt2rust_value(&expected[0]))
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} else {
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"None".to_string()
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};
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let return_type = if expected.len() > 0 {
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wabt2rust_type(&expected[0])
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} else {
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"should not use this return type".to_string()
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};
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let return_type_destructure = if expected.len() > 0 {
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wabt2rust_type_destructure(&expected[0], "result")
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} else {
|
|
"should not use this result return type destructure".to_string()
|
|
};
|
|
let _expected_type_destructure = if expected.len() > 0 {
|
|
wabt2rust_type_destructure(&expected[0], "expected")
|
|
} else {
|
|
"should not use this expected return type destructure".to_string()
|
|
};
|
|
let assertion = if expected.len() > 0 && is_nan(&expected[0]) {
|
|
format!(
|
|
"let expected = {expected_result};
|
|
if let {return_type_destructure} = result.unwrap() {{
|
|
assert!((result as {return_type}).is_nan());
|
|
assert_eq!((result as {return_type}).is_sign_positive(), (expected as {return_type}).is_sign_positive());
|
|
}} else {{
|
|
panic!(\"Unexpected result type {{:?}}\", result);
|
|
}}",
|
|
expected_result=expected_result,
|
|
return_type=return_type,
|
|
return_type_destructure=return_type_destructure
|
|
)
|
|
} else {
|
|
format!("assert_eq!(result, {});", expected_some_result)
|
|
};
|
|
(func_return, assertion)
|
|
}
|
|
None => ("".to_string(), "".to_string()),
|
|
};
|
|
|
|
// We map the arguments provided into the raw Arguments provided
|
|
// to libffi
|
|
// let mut args_types: Vec<String> = args.iter().map(wabt2rust_type).collect();
|
|
// args_types.push("&Instance".to_string());
|
|
let args_values: Vec<String> = args.iter().map(wabt2rust_value).collect();
|
|
// args_values.push("&result_object.instance".to_string());
|
|
let func_name = format!("{}_action_invoke", self.command_name());
|
|
self.buffer.push_str(
|
|
format!(
|
|
"fn {func_name}(instance: &mut Instance) -> Result<(), String> {{
|
|
println!(\"Executing function {{}}\", \"{func_name}\");
|
|
let result = instance.call(\"{field}\", &[{args_values}]).expect(\"Missing result in {func_name}\");
|
|
{assertion}
|
|
result.map(|_| ())
|
|
}}\n",
|
|
func_name=func_name,
|
|
field=field,
|
|
args_values=args_values.join(", "),
|
|
assertion=assertion,
|
|
)
|
|
.as_str(),
|
|
);
|
|
Some(func_name)
|
|
// let mut module_calls = self.module_calls.get(&self.last_module).unwrap();
|
|
// module_calls.push(func_name);
|
|
}
|
|
_ => None,
|
|
}
|
|
}
|
|
|
|
fn visit_assert_return(&mut self, action: &Action, expected: &Vec<Value>) {
|
|
let action_fn_name = self.visit_action(action, Some(expected));
|
|
|
|
if action_fn_name.is_none() {
|
|
return;
|
|
}
|
|
self.module_calls
|
|
.entry(self.last_module)
|
|
.or_insert(Vec::new())
|
|
.push(action_fn_name.unwrap());
|
|
}
|
|
|
|
fn visit_perform_action(&mut self, action: &Action) {
|
|
let action_fn_name = self.visit_action(action, None);
|
|
|
|
if action_fn_name.is_none() {
|
|
return;
|
|
}
|
|
self.module_calls
|
|
.entry(self.last_module)
|
|
.or_insert(Vec::new())
|
|
.push(action_fn_name.unwrap());
|
|
}
|
|
|
|
fn visit_assert_trap(&mut self, action: &Action) {
|
|
let action_fn_name = self.visit_action(action, None);
|
|
|
|
if action_fn_name.is_none() {
|
|
return;
|
|
}
|
|
let trap_func_name = format!("{}_assert_trap", self.command_name());
|
|
self.buffer.push_str(
|
|
format!(
|
|
"
|
|
#[test]
|
|
fn {}() {{
|
|
let mut instance = create_module_{}();
|
|
let result = {}(&mut instance);
|
|
assert!(result.is_err());
|
|
}}\n",
|
|
trap_func_name,
|
|
self.last_module,
|
|
action_fn_name.unwrap(),
|
|
)
|
|
.as_str(),
|
|
);
|
|
|
|
// We don't group trap calls as they may cause memory faults
|
|
// on the instance memory. So we test them alone.
|
|
// self.module_calls
|
|
// .entry(self.last_module)
|
|
// .or_insert(Vec::new())
|
|
// .push(trap_func_name);
|
|
}
|
|
|
|
fn visit_command(&mut self, cmd: &CommandKind) {
|
|
match cmd {
|
|
CommandKind::Module { module, name } => {
|
|
self.visit_module(module, name);
|
|
}
|
|
CommandKind::AssertReturn { action, expected } => {
|
|
self.visit_assert_return(action, expected)
|
|
}
|
|
CommandKind::AssertReturnCanonicalNan { action } => {
|
|
self.visit_assert_return_canonical_nan(action);
|
|
}
|
|
CommandKind::AssertReturnArithmeticNan { action } => {
|
|
self.visit_assert_return_arithmetic_nan(action);
|
|
}
|
|
CommandKind::AssertTrap { action, message: _ } => {
|
|
self.visit_assert_trap(action);
|
|
}
|
|
CommandKind::AssertInvalid { module, message: _ } => {
|
|
self.visit_assert_invalid(module);
|
|
}
|
|
CommandKind::AssertMalformed { module, message: _ } => {
|
|
self.visit_assert_malformed(module);
|
|
}
|
|
CommandKind::AssertUninstantiable {
|
|
module: _,
|
|
message: _,
|
|
} => {
|
|
// Do nothing for now
|
|
}
|
|
CommandKind::AssertExhaustion { action: _ } => {
|
|
// Do nothing for now
|
|
}
|
|
CommandKind::AssertUnlinkable {
|
|
module: _,
|
|
message: _,
|
|
} => {
|
|
// Do nothing for now
|
|
}
|
|
CommandKind::Register {
|
|
name: _,
|
|
as_name: _,
|
|
} => {
|
|
// Do nothing for now
|
|
}
|
|
CommandKind::PerformAction(action) => {
|
|
self.visit_perform_action(action);
|
|
}
|
|
}
|
|
}
|
|
fn finalize(&self) -> &String {
|
|
&self.buffer
|
|
}
|
|
}
|
|
|
|
fn wast_to_rust(wast_filepath: &str) -> (String, i32) {
|
|
let wast_filepath = format!("{}/{}", env!("CARGO_MANIFEST_DIR"), wast_filepath);
|
|
let path = PathBuf::from(&wast_filepath);
|
|
let script_name: String = String::from(path.file_stem().unwrap().to_str().unwrap());
|
|
let rust_test_filepath = format!(
|
|
concat!(env!("CARGO_MANIFEST_DIR"), "/tests/spectests/{}.rs"),
|
|
script_name.clone().as_str()
|
|
);
|
|
if script_name == "_common" {
|
|
panic!("_common is a reserved name for the _common module. Please use other name for the spectest.");
|
|
}
|
|
|
|
let wast_modified = fs::metadata(&wast_filepath)
|
|
.expect("Can't get wast file metadata")
|
|
.modified()
|
|
.expect("Can't get wast file modified date");
|
|
let _should_modify = match fs::metadata(&rust_test_filepath) {
|
|
Ok(m) => {
|
|
m.modified()
|
|
.expect("Can't get rust test file modified date")
|
|
< wast_modified
|
|
}
|
|
Err(_) => true,
|
|
};
|
|
|
|
// panic!("SOULD MODIFY {:?} {:?}", should_modify, rust_test_filepath);
|
|
|
|
// if true {
|
|
// should_modify
|
|
let mut generator = WastTestGenerator::new(&path);
|
|
generator.consume();
|
|
let generated_script = generator.finalize();
|
|
fs::write(&rust_test_filepath, generated_script.as_bytes()).unwrap();
|
|
// }
|
|
(script_name, generator.command_no)
|
|
}
|
|
|
|
pub fn build() {
|
|
let rust_test_modpath = concat!(env!("CARGO_MANIFEST_DIR"), "/tests/spectests/mod.rs");
|
|
|
|
let mut modules: Vec<String> = Vec::new();
|
|
// modules.reserve_exact(TESTS.len());
|
|
|
|
for test in TESTS.iter() {
|
|
let (module_name, number_commands) = wast_to_rust(test);
|
|
if number_commands > 200 {
|
|
modules.push(format!(
|
|
"#[cfg(not(feature = \"fast-tests\"))]
|
|
mod {};",
|
|
module_name
|
|
));
|
|
} else {
|
|
modules.push(format!("mod {};", module_name));
|
|
}
|
|
}
|
|
|
|
modules.insert(0, BANNER.to_string());
|
|
modules.insert(1, "// The _common module is not autogenerated, as it provides common functions for the spectests\nmod _common;".to_string());
|
|
// We add an empty line
|
|
modules.push("".to_string());
|
|
|
|
let modfile: String = modules.join("\n");
|
|
let source = fs::read(&rust_test_modpath).unwrap();
|
|
// We only modify the mod file if has changed
|
|
if source != modfile.as_bytes() {
|
|
fs::write(&rust_test_modpath, modfile.as_bytes()).unwrap();
|
|
}
|
|
}
|