/Users/deen/code/yugabyte-db/src/yb/yql/cql/ql/sem/analyzer.cc
Line | Count | Source (jump to first uncovered line) |
1 | | //-------------------------------------------------------------------------------------------------- |
2 | | // Copyright (c) YugaByte, Inc. |
3 | | // |
4 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
5 | | // in compliance with the License. You may obtain a copy of the License at |
6 | | // |
7 | | // http://www.apache.org/licenses/LICENSE-2.0 |
8 | | // |
9 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
10 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
11 | | // or implied. See the License for the specific language governing permissions and limitations |
12 | | // under the License. |
13 | | // |
14 | | //-------------------------------------------------------------------------------------------------- |
15 | | #include "yb/yql/cql/ql/sem/analyzer.h" |
16 | | |
17 | | #include "yb/util/status.h" |
18 | | #include "yb/yql/cql/ql/ptree/parse_tree.h" |
19 | | #include "yb/yql/cql/ql/ptree/sem_context.h" |
20 | | #include "yb/yql/cql/ql/util/errcodes.h" |
21 | | |
22 | | namespace yb { |
23 | | namespace ql { |
24 | | |
25 | | using std::string; |
26 | | |
27 | | //-------------------------------------------------------------------------------------------------- |
28 | | |
29 | 18.1k | Analyzer::Analyzer(QLEnv *ql_env) : ql_env_(ql_env) { |
30 | 18.1k | } |
31 | | |
32 | 1 | Analyzer::~Analyzer() { |
33 | 1 | } |
34 | | |
35 | | //-------------------------------------------------------------------------------------------------- |
36 | | |
37 | 340k | CHECKED_STATUS Analyzer::Analyze(ParseTreePtr parse_tree) { |
38 | 340k | ParseTree *ptree = parse_tree.get(); |
39 | 340k | DCHECK(ptree != nullptr) << "Parse tree is null"6.61k ; |
40 | 340k | sem_context_ = std::make_unique<SemContext>(std::move(parse_tree), ql_env_); |
41 | 340k | Status s = ptree->Analyze(sem_context_.get()); |
42 | 340k | if (PREDICT_FALSE(!s.ok())) { |
43 | | // When a statement is parsed for the first time, semantic analysis may fail because stale |
44 | | // table metadata cache was used. If that happens, clear the cache and tell the caller to |
45 | | // reparse. The only exception is when the keyspace, table or type or is not found in which |
46 | | // case no cache is used. |
47 | 1.44k | if (!ptree->reparsed()) { |
48 | 1.08k | const ErrorCode errcode = GetErrorCode(s); |
49 | 1.08k | if (errcode != ErrorCode::KEYSPACE_NOT_FOUND && |
50 | 1.08k | errcode != ErrorCode::OBJECT_NOT_FOUND && |
51 | 1.08k | errcode != ErrorCode::TYPE_NOT_FOUND928 && |
52 | 1.08k | sem_context_->cache_used()921 ) { |
53 | 414 | ptree->ClearAnalyzedTableCache(ql_env_); |
54 | 414 | ptree->ClearAnalyzedUDTypeCache(ql_env_); |
55 | 414 | ptree->set_stale(); |
56 | 414 | return sem_context_->Error(ptree->root(), ErrorCode::STALE_METADATA); |
57 | 414 | } |
58 | 1.08k | } |
59 | | |
60 | | // Before leaving the semantic step, collect all errors and place them in return status. |
61 | 1.03k | VLOG(3) << "Failed to analyze parse-tree <" << ptree << ">"0 ; |
62 | 1.03k | return sem_context_->GetStatus(); |
63 | 1.44k | } |
64 | | |
65 | 18.4E | VLOG(3) << "Successfully analyzed parse-tree <" << ptree << ">"; |
66 | 339k | return Status::OK(); |
67 | 340k | } |
68 | | |
69 | 342k | ParseTree::UniPtr Analyzer::Done() { |
70 | | // When releasing the parse tree, we must free the context because it has references to the tree |
71 | | // which doesn't belong to this context any longer. |
72 | 342k | ParseTree::UniPtr ptree = sem_context_->AcquireParseTree(); |
73 | 342k | sem_context_ = nullptr; |
74 | 342k | return ptree; |
75 | 342k | } |
76 | | |
77 | 0 | bool Analyzer::cache_used() const { |
78 | 0 | return sem_context_->cache_used(); |
79 | 0 | } |
80 | | |
81 | | } // namespace ql |
82 | | } // namespace yb |