Use wabt spec module (#48)

Use wabt-rs script parser to parse official testsuite.

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "spec/wabt"]
+[submodule "spec/testsuite"]
-	path = spec/wabt
+	path = spec/testsuite
-	url = https://github.com/WebAssembly/wabt.git
+	url = https://github.com/webassembly/testsuite

spec/Cargo.toml

@@ -7,19 +7,7 @@ readme = "README.md"
 repository = "https://github.com/nikvolf/parity-wasm"
 homepage = "https://github.com/nikvolf/parity-wasm"
 description = "parity-wasm testsuite"
-build = "build.rs"
-
-[build-dependencies]
-cmake = "0.1"
 
 [dependencies]
 wasmi = { path = ".." }
-serde_json = "1.0"
+wabt = "0.2.0"
-serde_derive = "1.0"
-serde = "1.0"
-
-[dev-dependencies]
-wasmi = { path = ".." }
-serde_json = "1.0"
-serde_derive = "1.0"
-serde = "1.0"

spec/build.rs

@@ -1,8 +0,0 @@
-extern crate cmake;
-use cmake::Config;
-
-fn main() {
-	let _dst = Config::new("wabt")
-		.define("BUILD_TESTS", "OFF")
-		.build();
-}

spec/src/lib.rs

@@ -1,9 +1,6 @@
 
-#[cfg_attr(test, macro_use)] #[cfg(test)] extern crate serde_derive;
 extern crate wasmi;
-extern crate serde;
+extern crate wabt;
-extern crate serde_json;
 
 mod run;
-mod test;
 mod fixtures;

spec/src/run.rs

@@ -1,27 +1,30 @@
 #![cfg(test)]
 
-use std::env;
-use std::path::{Path, PathBuf};
-use std::process::Command;
-use std::fs::File;
 use std::collections::HashMap;
 
-use serde_json;
-use super::test;
 use wasmi::{
-    Error as InterpreterError, Externals, FuncRef,
+    Error as InterpreterError, Externals, FuncInstance, FuncRef, GlobalDescriptor,
-    GlobalInstance, GlobalRef, ImportResolver, ImportsBuilder,
+    GlobalInstance, GlobalRef, ImportResolver, ImportsBuilder, MemoryDescriptor,
-    MemoryInstance, MemoryRef, ModuleImportResolver, ModuleInstance,
+    MemoryInstance, MemoryRef, Module, ModuleImportResolver, ModuleInstance, ModuleRef,
-    ModuleRef, RuntimeValue, TableInstance, TableRef, ValueType,
+    RuntimeArgs, RuntimeValue, Signature, TableDescriptor, TableInstance, TableRef, Trap,
-    Module, Signature, MemoryDescriptor, Trap,
+    ValueType};
-    TableDescriptor, GlobalDescriptor, FuncInstance, RuntimeArgs,
-};
 use wasmi::memory_units::Pages;
+use wabt::script::{self, Action, Command, CommandKind, ScriptParser, Value};
+
+fn spec_to_runtime_value(value: Value) -> RuntimeValue {
+    match value {
+        Value::I32(v) => RuntimeValue::I32(v),
+        Value::I64(v) => RuntimeValue::I64(v),
+        Value::F32(v) => RuntimeValue::F32(v),
+        Value::F64(v) => RuntimeValue::F64(v),
+    }
+}
 
 #[derive(Debug)]
 enum Error {
     Load(String),
     Start(Trap),
+    Script(script::Error),
     Interpreter(InterpreterError),
 }
 
@@ -31,6 +34,12 @@ impl From<InterpreterError> for Error {
     }
 }
 
+impl From<script::Error> for Error {
+    fn from(e: script::Error) -> Error {
+        Error::Script(e)
+    }
+}
+
 struct SpecModule {
     table: TableRef,
     memory: MemoryRef,
@@ -88,9 +97,10 @@ impl ModuleImportResolver for SpecModule {
             return Ok(func);
         }
 
-        Err(InterpreterError::Instantiation(
+        Err(InterpreterError::Instantiation(format!(
-            format!("Unknown host func import {}", field_name),
+            "Unknown host func import {}",
-        ))
+            field_name
+        )))
     }
 
     fn resolve_global(
@@ -107,9 +117,10 @@ impl ModuleImportResolver for SpecModule {
             };
         }
 
-        Err(InterpreterError::Instantiation(
+        Err(InterpreterError::Instantiation(format!(
-            format!("Unknown host global import {}", field_name),
+            "Unknown host global import {}",
-        ))
+            field_name
+        )))
     }
 
     fn resolve_memory(
@@ -121,9 +132,10 @@ impl ModuleImportResolver for SpecModule {
             return Ok(self.memory.clone());
         }
 
-        Err(InterpreterError::Instantiation(
+        Err(InterpreterError::Instantiation(format!(
-            format!("Unknown host memory import {}", field_name),
+            "Unknown host memory import {}",
-        ))
+            field_name
+        )))
     }
 
     fn resolve_table(
@@ -135,9 +147,10 @@ impl ModuleImportResolver for SpecModule {
             return Ok(self.table.clone());
         }
 
-        Err(InterpreterError::Instantiation(
+        Err(InterpreterError::Instantiation(format!(
-            format!("Unknown host table import {}", field_name),
+            "Unknown host table import {}",
-        ))
+            field_name
+        )))
     }
 }
 
@@ -176,9 +189,9 @@ impl SpecDriver {
     fn module_or_last(&self, name: Option<&str>) -> Result<ModuleRef, InterpreterError> {
         match name {
             Some(name) => self.module(name),
-            None => self.last_module.clone().ok_or_else(|| {
+            None => self.last_module
-                InterpreterError::Instantiation("No modules registered".into())
+                .clone()
-            }),
+                .ok_or_else(|| InterpreterError::Instantiation("No modules registered".into())),
         }
     }
 }
@@ -241,23 +254,12 @@ impl ImportResolver for SpecDriver {
     }
 }
 
-fn try_load_module(base_dir: &Path, module_path: &str) -> Result<Module, Error> {
+fn try_load_module(wasm: &[u8]) -> Result<Module, Error> {
-    use std::io::prelude::*;
+    Module::from_buffer(wasm).map_err(|e| Error::Load(e.to_string()))
-
-    let mut wasm_path = PathBuf::from(base_dir.clone());
-    wasm_path.push(module_path);
-    let mut file = File::open(wasm_path).unwrap();
-    let mut buf = Vec::new();
-    file.read_to_end(&mut buf).unwrap();
-    Module::from_buffer(buf).map_err(|e| Error::Load(e.to_string()))
 }
 
-fn try_load(
+fn try_load(wasm: &[u8], spec_driver: &mut SpecDriver) -> Result<(), Error> {
-    base_dir: &Path,
+    let module = try_load_module(wasm)?;
-    module_path: &str,
-    spec_driver: &mut SpecDriver,
-) -> Result<(), Error> {
-    let module = try_load_module(base_dir, module_path)?;
     let instance = ModuleInstance::new(&module, &ImportsBuilder::default())?;
     instance
         .run_start(spec_driver.spec_module())
@@ -265,14 +267,8 @@ fn try_load(
     Ok(())
 }
 
-fn load_module(
+fn load_module(wasm: &[u8], name: &Option<String>, spec_driver: &mut SpecDriver) -> ModuleRef {
-    base_dir: &Path,
+    let module = try_load_module(wasm).expect(&format!("Wasm failed to load"));
-    path: &str,
-    name: &Option<String>,
-    spec_driver: &mut SpecDriver,
-) -> ModuleRef {
-    let module =
-        try_load_module(base_dir, path).expect(&format!("Wasm file {} failed to load", path));
     let instance = ModuleInstance::new(&module, spec_driver)
         .expect("Instantiation failed")
         .run_start(spec_driver.spec_module())
@@ -284,66 +280,42 @@ fn load_module(
     instance
 }
 
-fn runtime_value(test_val: &test::RuntimeValue) -> RuntimeValue {
-    match test_val.value_type.as_ref() {
-        "i32" => {
-            let unsigned: u32 = test_val.value.parse().expect("Literal parse error");
-            RuntimeValue::I32(unsigned as i32)
-        }
-        "i64" => {
-            let unsigned: u64 = test_val.value.parse().expect("Literal parse error");
-            RuntimeValue::I64(unsigned as i64)
-        }
-        "f32" => {
-            let unsigned: u32 = test_val.value.parse().expect("Literal parse error");
-            RuntimeValue::decode_f32(unsigned)
-        }
-        "f64" => {
-            let unsigned: u64 = test_val.value.parse().expect("Literal parse error");
-            RuntimeValue::decode_f64(unsigned)
-        }
-        _ => panic!("Unknwon runtime value type"),
-    }
-}
-
-fn runtime_values(test_vals: &[test::RuntimeValue]) -> Vec<RuntimeValue> {
-    test_vals
-        .iter()
-        .map(runtime_value)
-        .collect::<Vec<RuntimeValue>>()
-}
-
 fn run_action(
     program: &mut SpecDriver,
-    action: &test::Action,
+    action: &Action,
 ) -> Result<Option<RuntimeValue>, InterpreterError> {
     match *action {
-        test::Action::Invoke {
+        Action::Invoke {
             ref module,
             ref field,
             ref args,
         } => {
-            let module = program.module_or_last(module.as_ref().map(|x| x.as_ref())).expect(&format!(
+            let module = program
+                .module_or_last(module.as_ref().map(|x| x.as_ref()))
+                .expect(&format!(
                     "Expected program to have loaded module {:?}",
                     module
                 ));
             module.invoke_export(
-                &jstring_to_rstring(field),
+                field,
-                &runtime_values(args),
+                &args.iter()
+                    .cloned()
+                    .map(spec_to_runtime_value)
+                    .collect::<Vec<_>>(),
                 program.spec_module(),
             )
         }
-        test::Action::Get {
+        Action::Get {
             ref module,
             ref field,
             ..
         } => {
-            let module = program.module_or_last(module.as_ref().map(|x| x.as_ref())).expect(&format!(
+            let module = program
+                .module_or_last(module.as_ref().map(|x| x.as_ref()))
+                .expect(&format!(
                     "Expected program to have loaded module {:?}",
                     module
                 ));
-            let field = jstring_to_rstring(&field);
-
             let global = module
                 .export_by_name(&field)
                 .ok_or_else(|| {
@@ -359,92 +331,29 @@ fn run_action(
     }
 }
 
-pub struct FixtureParams {
-    failing: bool,
-    json: String,
-}
-
-pub fn run_wast2wasm(name: &str) -> FixtureParams {
-    let outdir = env::var("OUT_DIR").unwrap();
-
-    let mut wast2wasm_path = PathBuf::from(outdir.clone());
-    wast2wasm_path.push("bin");
-    wast2wasm_path.push("wast2json");
-
-    let mut json_spec_path = PathBuf::from(outdir.clone());
-    json_spec_path.push(&format!("{}.json", name));
-
-    let wast2wasm_output = Command::new(wast2wasm_path)
-        .arg("-o")
-        .arg(&json_spec_path)
-        .arg(&format!("./wabt/third_party/testsuite/{}.wast", name))
-        .output()
-        .expect("Failed to execute process");
-
-    FixtureParams {
-        json: json_spec_path.to_str().unwrap().to_owned(),
-        failing: {
-            if !wast2wasm_output.status.success() {
-                println!("wast2json error code: {}", wast2wasm_output.status);
-                println!(
-                    "wast2json stdout: {}",
-                    String::from_utf8_lossy(&wast2wasm_output.stdout)
-                );
-                println!(
-                    "wast2json stderr: {}",
-                    String::from_utf8_lossy(&wast2wasm_output.stderr)
-                );
-                true
-            } else {
-                false
-            }
-        },
-    }
-}
-
 pub fn spec(name: &str) {
-    let tmpdir = env::var("OUT_DIR").unwrap();
+    println!("running test: {}", name);
-
+    try_spec(name).expect("Failed to run spec");
-    let fixture = run_wast2wasm(name);
+}
-
-    let wast2wasm_fail_expected = name.ends_with(".fail");
-    if wast2wasm_fail_expected {
-        if !fixture.failing {
-            panic!("wast2json expected to fail, but terminated normally");
-        }
-        // Failing fixture, bail out.
-        return;
-    }
-
-    if fixture.failing {
-        panic!("wast2json terminated abnormally, expected to success");
-    }
-
-    let mut f =
-        File::open(&fixture.json).expect(&format!("Failed to load json file {}", &fixture.json));
-    let spec: test::Spec =
-        serde_json::from_reader(&mut f).expect("Failed to deserialize JSON file");
 
+fn try_spec(name: &str) -> Result<(), Error> {
     let mut spec_driver = SpecDriver::new();
-    for command in &spec.commands {
+    let spec_script_path = format!("testsuite/{}.wast", name);
-        println!("command {:?}", command);
+    let mut parser = ScriptParser::from_file(spec_script_path).expect("Can't read spec script");
-        match command {
+    while let Some(Command { kind, line }) = parser.next()? {
-            &test::Command::Module {
+        match kind {
-                ref name,
+            CommandKind::Module { name, module, .. } => {
-                ref filename,
+                load_module(&module.into_vec()?, &name, &mut spec_driver);
-                ..
-            } => {
-                load_module(tmpdir.as_ref(), &filename, &name, &mut spec_driver);
             }
-            &test::Command::AssertReturn {
+            CommandKind::AssertReturn { action, expected } => {
-                line,
+                let result = run_action(&mut spec_driver, &action);
-                ref action,
-                ref expected,
-            } => {
-                let result = run_action(&mut spec_driver, action);
                 match result {
                     Ok(result) => {
-                        let spec_expected = runtime_values(expected);
+                        let spec_expected = expected
+                            .iter()
+                            .cloned()
+                            .map(spec_to_runtime_value)
+                            .collect::<Vec<_>>();
                         let actual_result = result.into_iter().collect::<Vec<RuntimeValue>>();
                         for (actual_result, spec_expected) in
                             actual_result.iter().zip(spec_expected.iter())
@@ -470,9 +379,9 @@ pub fn spec(name: &str) {
                     }
                 }
             }
-            &test::Command::AssertReturnCanonicalNan { line, ref action } |
+            CommandKind::AssertReturnCanonicalNan { action }
-            &test::Command::AssertReturnArithmeticNan { line, ref action } => {
+            | CommandKind::AssertReturnArithmeticNan { action } => {
-                let result = run_action(&mut spec_driver, action);
+                let result = run_action(&mut spec_driver, &action);
                 match result {
                     Ok(result) => {
                         for actual_result in result.into_iter().collect::<Vec<RuntimeValue>>() {
@@ -495,19 +404,15 @@ pub fn spec(name: &str) {
                     }
                 }
             }
-            &test::Command::AssertExhaustion {
+            CommandKind::AssertExhaustion { action, .. } => {
-                line, ref action, ..
+                let result = run_action(&mut spec_driver, &action);
-            } => {
-                let result = run_action(&mut spec_driver, action);
                 match result {
                     Ok(result) => panic!("Expected exhaustion, got result: {:?}", result),
                     Err(e) => println!("assert_exhaustion at line {} - success ({:?})", line, e),
                 }
             }
-            &test::Command::AssertTrap {
+            CommandKind::AssertTrap { action, .. } => {
-                line, ref action, ..
+                let result = run_action(&mut spec_driver, &action);
-            } => {
-                let result = run_action(&mut spec_driver, action);
                 match result {
                     Ok(result) => {
                         panic!(
@@ -520,55 +425,34 @@ pub fn spec(name: &str) {
                     }
                 }
             }
-            &test::Command::AssertInvalid {
+            CommandKind::AssertInvalid { module, .. }
-                line, ref filename, ..
+            | CommandKind::AssertMalformed { module, .. }
-            } |
+            | CommandKind::AssertUnlinkable { module, .. } => {
-            &test::Command::AssertMalformed {
+                let module_load = try_load(&module.into_vec()?, &mut spec_driver);
-                line, ref filename, ..
-            } |
-            &test::Command::AssertUnlinkable {
-                line, ref filename, ..
-            } => {
-                let module_load = try_load(tmpdir.as_ref(), filename, &mut spec_driver);
                 match module_load {
                     Ok(_) => panic!("Expected invalid module definition, got some module!"),
                     Err(e) => println!("assert_invalid at line {} - success ({:?})", line, e),
                 }
             }
-            &test::Command::AssertUninstantiable {
+            CommandKind::AssertUninstantiable { module, .. } => {
-                line, ref filename, ..
+                match try_load(&module.into_vec()?, &mut spec_driver) {
-            } => match try_load(tmpdir.as_ref(), &filename, &mut spec_driver) {
                     Ok(_) => panic!("Expected error running start function at line {}", line),
                     Err(e) => println!("assert_uninstantiable - success ({:?})", e),
-            },
+                }
-            &test::Command::Register {
+            }
-                line,
+            CommandKind::Register { name, as_name, .. } => {
-                ref name,
-                ref as_name,
-                ..
-            } => {
                 let module = match spec_driver.module_or_last(name.as_ref().map(|x| x.as_ref())) {
                     Ok(module) => module,
                     Err(e) => panic!("No such module, at line {} - ({:?})", e, line),
                 };
                 spec_driver.add_module(Some(as_name.clone()), module);
             }
-            &test::Command::Action { line, ref action } => {
+            CommandKind::PerformAction(action) => match run_action(&mut spec_driver, &action) {
-                match run_action(&mut spec_driver, action) {
                 Ok(_) => {}
                 Err(e) => panic!("Failed to invoke action at line {}: {:?}", line, e),
+            },
         }
     }
-        }
-    }
-}
 
-// Convert json string to correct rust UTF8 string.
+    Ok(())
-// The reason is that, for example, rust character "\u{FEEF}" (3-byte UTF8 BOM) is represented as "\u00ef\u00bb\u00bf" in spec json.
-// It is incorrect. Correct BOM representation in json is "\uFEFF" => we need to do a double utf8-parse here.
-// This conversion is incorrect in general case (casting char to u8)!!!
-fn jstring_to_rstring(jstring: &str) -> String {
-    let jstring_chars: Vec<u8> = jstring.chars().map(|c| c as u8).collect();
-    let rstring = String::from_utf8(jstring_chars).unwrap();
-    rstring
 }

spec/src/test.rs

@@ -1,104 +0,0 @@
-#![cfg(test)]
-
-#[derive(Deserialize, Debug)]
-pub struct RuntimeValue {
-    #[serde(rename = "type")]
-    pub value_type: String,
-    pub value: String,
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(tag = "type")]
-pub enum Action {
-    #[serde(rename = "invoke")]
-    Invoke {
-        module: Option<String>,
-        field: String,
-        args: Vec<RuntimeValue>,
-    },
-    #[serde(rename = "get")]
-    Get {
-        module: Option<String>,
-        field: String,
-    }
-}
-
-#[derive(Deserialize, Debug)]
-#[serde(tag = "type")]
-pub enum Command {
-    #[serde(rename = "module")]
-    Module {
-        line: u64,
-        name: Option<String>,
-        filename: String
-    },
-    #[serde(rename = "assert_return")]
-    AssertReturn { 
-        line: u64, 
-        action: Action,
-        expected: Vec<RuntimeValue>,
-    },
-    #[serde(rename = "assert_return_canonical_nan")]
-    AssertReturnCanonicalNan {
-        line: u64,
-        action: Action,
-    },
-    #[serde(rename = "assert_return_arithmetic_nan")]
-    AssertReturnArithmeticNan {
-        line: u64,
-        action: Action,
-    },
-    #[serde(rename = "assert_trap")]
-    AssertTrap {
-        line: u64,
-        action: Action,
-        text: String,
-    },
-    #[serde(rename = "assert_invalid")]
-    AssertInvalid {
-        line: u64,
-        filename: String,
-        text: String,
-    },
-    #[serde(rename = "assert_malformed")]
-    AssertMalformed {
-        line: u64,
-        filename: String,
-        text: String,
-    },
-    #[serde(rename = "assert_uninstantiable")]
-    AssertUninstantiable {
-        line: u64,
-        filename: String,
-        text: String,
-    },
-    #[serde(rename = "assert_exhaustion")]
-    AssertExhaustion {
-        line: u64,
-        action: Action,
-    },
-    #[serde(rename = "assert_unlinkable")]
-    AssertUnlinkable {
-        line: u64,
-        filename: String,
-        text: String,
-    },
-    #[serde(rename = "register")]
-    Register {
-        line: u64,
-        name: Option<String>,
-        #[serde(rename = "as")]
-        as_name: String,
-    },
-    #[serde(rename = "action")]
-    Action {
-        line: u64,
-        action: Action,
-    },
-}
-
-#[derive(Deserialize, Debug)]
-pub struct Spec {
-    pub source_filename: String,
-    pub commands: Vec<Command>,
-}

spec/testsuite

@@ -0,0 +1 @@
+Subproject commit b38bf51ea9c956951b9466aa8243d9727d009bb2

spec/wabt

@@ -1 +0,0 @@
-Subproject commit a74072b2163ca20645e4a313636507cb3984f5fb