Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1 | // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Flags: --expose-wasm |
| 6 | |
| 7 | load("test/mjsunit/wasm/wasm-constants.js"); |
| 8 | load("test/mjsunit/wasm/wasm-module-builder.js"); |
| 9 | |
| 10 | var builder = new WasmModuleBuilder(); |
| 11 | |
| 12 | var last_func_index = builder.addFunction("exec_unreachable", kSig_v_v) |
| 13 | .addBody([kExprUnreachable]) |
| 14 | |
| 15 | var illegal_func_name = [0xff]; |
| 16 | var func_names = [ "☠", illegal_func_name, "some math: (½)² = ¼", "" ]; |
| 17 | var expected_names = ["exec_unreachable", "☠", null, |
| 18 | "some math: (½)² = ¼", "", "main"]; |
| 19 | |
| 20 | for (var func_name of func_names) { |
| 21 | last_func_index = builder.addFunction(func_name, kSig_v_v) |
| 22 | .addBody([kExprCallFunction, kArity0, last_func_index]).index; |
| 23 | } |
| 24 | |
| 25 | builder.addFunction("main", kSig_v_v) |
| 26 | .addBody([kExprCallFunction, kArity0, last_func_index]) |
| 27 | .exportFunc(); |
| 28 | |
| 29 | var module = builder.instantiate(); |
| 30 | |
| 31 | (function testFunctionNamesAsString() { |
| 32 | var names = expected_names.concat(["testFunctionNamesAsString", null]); |
| 33 | try { |
| 34 | module.exports.main(); |
| 35 | assertFalse("should throw"); |
| 36 | } catch (e) { |
| 37 | var lines = e.stack.split(/\r?\n/); |
| 38 | lines.shift(); |
| 39 | assertEquals(names.length, lines.length); |
| 40 | for (var i = 0; i < names.length; ++i) { |
| 41 | var line = lines[i].trim(); |
| 42 | if (names[i] === null) continue; |
| 43 | var printed_name = names[i] === undefined ? "<WASM UNNAMED>" : names[i] |
| 44 | var expected_start = "at " + printed_name + " ("; |
| 45 | assertTrue(line.startsWith(expected_start), |
| 46 | "should start with '" + expected_start + "': '" + line + "'"); |
| 47 | } |
| 48 | } |
| 49 | })(); |
| 50 | |
| 51 | // For the remaining tests, collect the Callsite objects instead of just a |
| 52 | // string: |
| 53 | Error.prepareStackTrace = function(error, frames) { |
| 54 | return frames; |
| 55 | }; |
| 56 | |
| 57 | |
| 58 | (function testFunctionNamesAsCallSites() { |
| 59 | var names = expected_names.concat(["testFunctionNamesAsCallSites", null]); |
| 60 | try { |
| 61 | module.exports.main(); |
| 62 | assertFalse("should throw"); |
| 63 | } catch (e) { |
| 64 | assertEquals(names.length, e.stack.length); |
| 65 | for (var i = 0; i < names.length; ++i) { |
| 66 | assertEquals(names[i], e.stack[i].getFunctionName()); |
| 67 | } |
| 68 | } |
| 69 | })(); |