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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-wasm --allow-natives-syntax
load("test/mjsunit/wasm/wasm-module-builder.js");
function builder() {
return new WasmModuleBuilder;
}
function assertCompileError(bytes, msg) {
assertThrows(
() => new WebAssembly.Module(bytes), WebAssembly.CompileError,
'WebAssembly.Module(): ' + msg);
assertThrowsAsync(
WebAssembly.compile(bytes), WebAssembly.CompileError,
'WebAssembly.compile(): ' + msg);
}
function assertInstantiateError(error, bytes, imports = {}, msg) {
assertThrows(
() => new WebAssembly.Instance(new WebAssembly.Module(bytes), imports),
error, 'WebAssembly.Instance(): ' + msg);
assertThrowsAsync(
WebAssembly.instantiate(bytes, imports), error,
'WebAssembly.instantiate(): ' + msg);
}
// default imports to {} so we get LinkError by default, thus allowing us to
// distinguish the TypeError we want to catch
function assertTypeError(bytes, imports = {}, msg) {
assertInstantiateError(TypeError, bytes, imports, msg);
}
function assertLinkError(bytes, imports, msg) {
assertInstantiateError(WebAssembly.LinkError, bytes, imports, msg);
}
function assertConversionError(bytes, imports, msg) {
let instance =
new WebAssembly.Instance(new WebAssembly.Module(bytes), imports);
assertThrows(() => instance.exports.run(), TypeError, msg);
}
(function TestDecodingError() {
print(arguments.callee.name);
assertCompileError(bytes(), 'BufferSource argument is empty');
assertCompileError(bytes('X'), 'expected 4 bytes, fell off end @+0');
assertCompileError(
bytes('\0x00asm'),
'expected magic word 00 61 73 6d, found 00 78 30 30 @+0');
})();
(function TestValidationError() {
print(arguments.callee.name);
let f_error = msg => 'Compiling function #0:"f" failed: ' + msg;
assertCompileError(
builder().addFunction('f', kSig_i_v).end().toBuffer(),
f_error('function body must end with "end" opcode @+24'));
assertCompileError(
builder().addFunction('f', kSig_i_v).addBody([kExprReturn])
.end().toBuffer(),
f_error('expected 1 elements on the stack for return, found 0 @+24'));
assertCompileError(builder().addFunction('f', kSig_v_v).addBody([
kExprGetLocal, 0
]).end().toBuffer(), f_error('invalid local index: 0 @+24'));
assertCompileError(
builder().addStart(0).toBuffer(),
'start function index 0 out of bounds (0 entries) @+10');
})();
function import_error(index, module, func, msg) {
let full_msg = 'Import #' + index + ' module=\"' + module + '\"';
if (func !== undefined) full_msg += ' function=\"' + func + '\"';
return full_msg + ' error: ' + msg;
}
(function TestTypeError() {
print(arguments.callee.name);
let b = builder();
b.addImport('foo', 'bar', kSig_v_v);
let msg =
import_error(0, 'foo', undefined, 'module is not an object or function');
assertTypeError(b.toBuffer(), {}, msg);
b = builder();
b.addImportedGlobal('foo', 'bar', kWasmI32);
assertTypeError(b.toBuffer(), {}, msg);
b = builder();
b.addImportedMemory('foo', 'bar');
assertTypeError(b.toBuffer(), {}, msg);
})();
(function TestLinkingError() {
print(arguments.callee.name);
let b;
let msg;
b = builder();
msg = import_error(0, 'foo', 'bar', 'function import requires a callable');
b.addImport('foo', 'bar', kSig_v_v);
assertLinkError(b.toBuffer(), {foo: {}}, msg);
b = builder();
b.addImport('foo', 'bar', kSig_v_v);
assertLinkError(b.toBuffer(), {foo: {bar: 9}}, msg);
b = builder();
msg = import_error(
0, 'foo', 'bar',
'global import must be a number or WebAssembly.Global object');
b.addImportedGlobal('foo', 'bar', kWasmI32);
assertLinkError(b.toBuffer(), {foo: {}}, msg);
b = builder();
b.addImportedGlobal('foo', 'bar', kWasmI32);
assertLinkError(b.toBuffer(), {foo: {bar: ''}}, msg);
b = builder();
b.addImportedGlobal('foo', 'bar', kWasmI32);
assertLinkError(b.toBuffer(), {foo: {bar: () => 9}}, msg);
b = builder();
msg = import_error(
0, 'foo', 'bar', 'memory import must be a WebAssembly.Memory object');
b.addImportedMemory('foo', 'bar');
assertLinkError(b.toBuffer(), {foo: {}}, msg);
b = builder();
b.addImportedMemory('foo', 'bar', 1);
assertLinkError(
b.toBuffer(), {foo: {bar: () => new WebAssembly.Memory({initial: 0})}},
msg);
})();
(function TestTrapUnreachable() {
print(arguments.callee.name);
let instance = builder().addFunction('run', kSig_v_v)
.addBody([kExprUnreachable]).exportFunc().end().instantiate();
assertTraps(kTrapUnreachable, instance.exports.run);
})();
(function TestTrapDivByZero() {
print(arguments.callee.name);
let instance = builder().addFunction('run', kSig_v_v).addBody(
[kExprI32Const, 1, kExprI32Const, 0, kExprI32DivS, kExprDrop])
.exportFunc().end().instantiate();
assertTraps(kTrapDivByZero, instance.exports.run);
})();
(function TestUnreachableInStart() {
print(arguments.callee.name);
let b = builder().addFunction("start", kSig_v_v).addBody(
[kExprUnreachable]).end().addStart(0);
assertTraps(kTrapUnreachable, () => b.instantiate());
})();
(function TestConversionError() {
print(arguments.callee.name);
let b = builder();
b.addImport('foo', 'bar', kSig_v_l);
let buffer = b.addFunction('run', kSig_v_v)
.addBody([kExprI64Const, 0, kExprCallFunction, 0])
.exportFunc()
.end()
.toBuffer();
assertConversionError(
buffer, {foo: {bar: (l) => {}}}, kTrapMsgs[kTrapTypeError]);
buffer = builder()
.addFunction('run', kSig_l_v)
.addBody([kExprI64Const, 0])
.exportFunc()
.end()
.toBuffer();
assertConversionError(buffer, {}, kTrapMsgs[kTrapTypeError]);
})();
(function InternalDebugTrace() {
print(arguments.callee.name);
var builder = new WasmModuleBuilder();
var sig = builder.addType(kSig_i_dd);
builder.addImport("mod", "func", sig);
builder.addFunction("main", sig)
.addBody([kExprGetLocal, 0, kExprGetLocal, 1, kExprCallFunction, 0])
.exportAs("main");
var main = builder.instantiate({
mod: {
func: ()=>{%DebugTrace();}
}
}).exports.main;
main();
})();
(function TestMultipleCorruptFunctions() {
print(arguments.callee.name);
// Generate a module with multiple corrupt functions. The error message must
// be deterministic.
var builder = new WasmModuleBuilder();
var sig = builder.addType(kSig_v_v);
for (let i = 0; i < 10; ++i) {
builder.addFunction('f' + i, sig).addBody([kExprEnd]);
}
assertCompileError(
builder.toBuffer(),
'Compiling function #0:"f0" failed: ' +
'trailing code after function end @+33');
})();
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