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Diffstat (limited to 'src/tools/js-wrapper.h')
| -rw-r--r-- | src/tools/js-wrapper.h | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/src/tools/js-wrapper.h b/src/tools/js-wrapper.h deleted file mode 100644 index edee301ca..000000000 --- a/src/tools/js-wrapper.h +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Copyright 2017 WebAssembly Community Group participants - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -// -// Emit a JavaScript wrapper to run a wasm module with some test -// values, useful for fuzzing. -// - -#include "wasm-type.h" -#include "wasm.h" -#include <string> - -namespace wasm { - -inline std::string generateJSWrapper(Module& wasm) { - std::string ret; - ret += "if (typeof console === 'undefined') {\n" - " console = { log: print };\n" - "}\n" - "var tempRet0;\n" - "var binary;\n" - "if (typeof process === 'object' && typeof require === 'function' /* " - "node.js detection */) {\n" - " var args = process.argv.slice(2);\n" - " binary = require('fs').readFileSync(args[0]);\n" - " if (!binary.buffer) binary = new Uint8Array(binary);\n" - "} else {\n" - " var args;\n" - " if (typeof scriptArgs != 'undefined') {\n" - " args = scriptArgs;\n" - " } else if (typeof arguments != 'undefined') {\n" - " args = arguments;\n" - " }\n" - " if (typeof readbuffer === 'function') {\n" - " binary = new Uint8Array(readbuffer(args[0]));\n" - " } else {\n" - " binary = read(args[0], 'binary');\n" - " }\n" - "}\n" - "function literal(x, type) {\n" - " var ret = '';\n" - " switch (type) {\n" - " case 'i32': ret += (x | 0); break;\n" - " case 'f32':\n" - " case 'f64': {\n" - " if (x == 0 && (1 / x) < 0) ret += '-';\n" - " ret += Number(x).toString();\n" - " break;\n" - " }\n" - " // For anything else, just print the type.\n" - " default: ret += type; break;\n" - " }\n" - " return ret;\n" - "}\n" - "var instance = new WebAssembly.Instance(new " - "WebAssembly.Module(binary), {\n" - " 'fuzzing-support': {\n" - " 'log-i32': function(x) { " - "console.log('[LoggingExternalInterface logging ' + literal(x, 'i32') " - "+ ']') },\n" - " 'log-i64': function(x, y) { " - "console.log('[LoggingExternalInterface logging ' + literal(x, 'i32') " - "+ ' ' + literal(y, 'i32') + ']') },\n" // legalization: two i32s - " 'log-f32': function(x) { " - "console.log('[LoggingExternalInterface logging ' + literal(x, 'f64') " - "+ ']') },\n" // legalization: an f64 - " 'log-f64': function(x) { " - "console.log('[LoggingExternalInterface logging ' + literal(x, 'f64') " - "+ ']') },\n" - " },\n" - " 'env': {\n" - " 'setTempRet0': function(x) { tempRet0 = x },\n" - " 'getTempRet0': function() { return tempRet0 },\n" - " },\n" - "});\n"; - for (auto& exp : wasm.exports) { - if (exp->kind != ExternalKind::Function) { - continue; // something exported other than a function - } - auto* func = wasm.getFunction(exp->value); - ret += "try {\n"; - ret += std::string(" console.log('[fuzz-exec] calling ") + - exp->name.toString() + "');\n"; - if (func->getResults() != Type::none) { - ret += std::string(" console.log('[fuzz-exec] note result: ") + - exp->name.toString() + " => ' + literal("; - } else { - ret += " "; - } - ret += std::string("instance.exports.") + exp->name.toString() + "("; - bool first = true; - for (auto param : func->getParams()) { - // zeros in arguments TODO more? - if (first) { - first = false; - } else { - ret += ", "; - } - if (param.isRef()) { - ret += "null"; - } else { - ret += "0"; - if (param == Type::i64) { - ret += ", 0"; - } - } - } - ret += ")"; - if (func->getResults() != Type::none) { - ret += ", '" + func->getResults().toString() + "'))"; - // TODO: getTempRet - } - ret += ";\n"; - ret += "} catch (e) {\n"; - ret += " console.log('exception!' /* + e */);\n"; - ret += "}\n"; - } - return ret; -} - -} // namespace wasm |