Decouple log targets to a separate crate (#152)

crates/air-lib/trace-handler/src/lib.rs

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2021 Fluence Labs Limited
+ *
+ * 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.
+ */
+
+mod data_keeper;
+mod errors;
+mod handler;
+mod merger;
+mod state_automata;
+
+pub use errors::TraceHandlerError;
+pub use handler::TraceHandler;
+pub use merger::ApResultError;
+pub use merger::CallResultError;
+pub use merger::FoldResultError;
+pub use merger::MergeCtxType;
+pub use merger::MergeError;
+pub use merger::MergerApResult;
+pub use merger::MergerCallResult;
+pub use state_automata::SubtreeType;
+
+pub type TraceHandlerResult<T> = std::result::Result<T, TraceHandlerError>;
+
+use air_interpreter_data::*;
+use data_keeper::DataKeeper;
+use data_keeper::MergeCtx;
+use merger::MergerFoldResult;
+use merger::ResolvedFold;
+use merger::ResolvedSubTraceDescs;
+use state_automata::FSMKeeper;
+use state_automata::FoldFSM;
+use state_automata::ParFSM;