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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
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
var builder = new WasmModuleBuilder();
var last_func_index = builder.addFunction("exec_unreachable", kSig_v_v)
.addBody([kExprUnreachable]).index
var illegal_func_name = [0xff];
var func_names = [ "☠", illegal_func_name, "some math: (½)² = ¼", "" ];
var expected_names = ["exec_unreachable", "☠", null,
"some math: (½)² = ¼", "", "main"];
for (var func_name of func_names) {
last_func_index = builder.addFunction(func_name, kSig_v_v)
.addBody([kExprCallFunction, last_func_index]).index;
}
builder.addFunction("main", kSig_v_v)
.addBody([kExprCallFunction, last_func_index])
.exportFunc();
var module = builder.instantiate();
(function testFunctionNamesAsString() {
var names = expected_names.concat(["testFunctionNamesAsString", null]);
try {
module.exports.main();
assertFalse("should throw");
} catch (e) {
var lines = e.stack.split(/\r?\n/);
lines.shift();
assertEquals(names.length, lines.length);
for (var i = 0; i < names.length; ++i) {
var line = lines[i].trim();
if (names[i] === null) continue;
var printed_name = names[i];
var expected_start = "at " + printed_name + " (";
assertTrue(line.startsWith(expected_start),
"should start with '" + expected_start + "': '" + line + "'");
}
}
})();
// For the remaining tests, collect the Callsite objects instead of just a
// string:
Error.prepareStackTrace = function(error, frames) {
return frames;
};
(function testFunctionNamesAsCallSites() {
var names = expected_names.concat(['testFunctionNamesAsCallSites', null]);
try {
module.exports.main();
assertFalse('should throw');
} catch (e) {
assertEquals(names.length, e.stack.length, 'stack length');
for (var i = 0; i < names.length; ++i) {
assertEquals(
names[i], e.stack[i].getFunctionName(), 'function name at ' + i);
}
}
})();
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