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Diffstat (limited to '')
-rw-r--r-- | edify/edify_parser.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/edify/edify_parser.cpp b/edify/edify_parser.cpp new file mode 100644 index 000000000..f1b56284c --- /dev/null +++ b/edify/edify_parser.cpp @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * 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. + */ + +/** + * This is a host-side tool for validating a given edify script file. + * + * We used to have edify test cases here, which have been moved to + * tests/component/edify_test.cpp. + * + * Caveat: It doesn't recognize functions defined through updater, which + * makes the tool less useful. We should either extend the tool or remove it. + */ + +#include <errno.h> +#include <stdio.h> + +#include <memory> +#include <string> + +#include <android-base/file.h> + +#include "expr.h" + +static void ExprDump(int depth, const std::unique_ptr<Expr>& n, const std::string& script) { + printf("%*s", depth*2, ""); + printf("%s %p (%d-%d) \"%s\"\n", + n->name.c_str(), n->fn, n->start, n->end, + script.substr(n->start, n->end - n->start).c_str()); + for (size_t i = 0; i < n->argv.size(); ++i) { + ExprDump(depth+1, n->argv[i], script); + } +} + +int main(int argc, char** argv) { + RegisterBuiltins(); + + if (argc != 2) { + printf("Usage: %s <edify script>\n", argv[0]); + return 1; + } + + std::string buffer; + if (!android::base::ReadFileToString(argv[1], &buffer)) { + printf("%s: failed to read %s: %s\n", argv[0], argv[1], strerror(errno)); + return 1; + } + + std::unique_ptr<Expr> root; + int error_count = 0; + int error = parse_string(buffer.data(), &root, &error_count); + printf("parse returned %d; %d errors encountered\n", error, error_count); + if (error == 0 || error_count > 0) { + + ExprDump(0, root, buffer); + + State state(buffer, nullptr); + std::string result; + if (!Evaluate(&state, root, &result)) { + printf("result was NULL, message is: %s\n", + (state.errmsg.empty() ? "(NULL)" : state.errmsg.c_str())); + } else { + printf("result is [%s]\n", result.c_str()); + } + } + return 0; +} |