1 files changed, 111 insertions, 0 deletions
diff --git a/src/mongo/db/exec/sbe/stages/text_match.cpp b/src/mongo/db/exec/sbe/stages/text_match.cpp
new file mode 100644
index 00000000000..765f1c228c1
--- /dev/null
+++ b/src/mongo/db/exec/sbe/stages/text_match.cpp
@@ -0,0 +1,111 @@
+/**
+ *    Copyright (C) 2020-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/db/exec/sbe/stages/text_match.h"
+
+#include "mongo/db/exec/sbe/expressions/expression.h"
+#include "mongo/db/exec/sbe/values/bson.h"
+
+namespace mongo::sbe {
+
+std::unique_ptr<PlanStage> TextMatchStage::clone() const {
+    return makeS<TextMatchStage>(
+        _children[0]->clone(), _ftsMatcher.query(), _ftsMatcher.spec(), _inputSlot, _outputSlot);
+}
+
+void TextMatchStage::prepare(CompileCtx& ctx) {
+    _children[0]->prepare(ctx);
+    _inValueAccessor = _children[0]->getAccessor(ctx, _inputSlot);
+}
+
+value::SlotAccessor* TextMatchStage::getAccessor(CompileCtx& ctx, value::SlotId slot) {
+    if (slot == _outputSlot) {
+        return &_outValueAccessor;
+    }
+
+    return _children[0]->getAccessor(ctx, slot);
+}
+
+void TextMatchStage::open(bool reOpen) {
+    _commonStats.opens++;
+    _children[0]->open(reOpen);
+}
+
+PlanState TextMatchStage::getNext() {
+    auto state = _children[0]->getNext();
+
+    if (state == PlanState::ADVANCED) {
+        auto&& [typeTag, value] = _inValueAccessor->getViewOfValue();
+        uassert(ErrorCodes::Error(4623400),
+                "textmatch requires input to be an object",
+                value::isObject(typeTag));
+        BSONObj obj;
+        if (typeTag == value::TypeTags::bsonObject) {
+            obj = BSONObj{value::bitcastTo<const char*>(value)};
+        } else {
+            BSONObjBuilder builder;
+            bson::convertToBsonObj(builder, value::getObjectView(value));
+            obj = builder.obj();
+        }
+        const auto matchResult = _ftsMatcher.matches(obj);
+        _outValueAccessor.reset(value::TypeTags::Boolean, matchResult);
+    }
+
+    return trackPlanState(state);
+}
+
+void TextMatchStage::close() {
+    _commonStats.closes++;
+    _children[0]->close();
+}
+
+std::vector<DebugPrinter::Block> TextMatchStage::debugPrint() const {
+    // TODO: Add 'textmatch' to the parser so that the debug output can be parsed back to an
+    // execution plan.
+    std::vector<DebugPrinter::Block> ret;
+
+    DebugPrinter::addKeyword(ret, "textmatch");
+    DebugPrinter::addIdentifier(ret, _inputSlot);
+    DebugPrinter::addIdentifier(ret, _outputSlot);
+
+    DebugPrinter::addNewLine(ret);
+    DebugPrinter::addBlocks(ret, _children[0]->debugPrint());
+
+    return ret;
+}
+
+std::unique_ptr<PlanStageStats> TextMatchStage::getStats() const {
+    auto ret = std::make_unique<PlanStageStats>(_commonStats);
+    ret->children.emplace_back(_children[0]->getStats());
+    return ret;
+}
+
+}  // namespace mongo::sbe