-
Notifications
You must be signed in to change notification settings - Fork 73
Expand file tree
/
Copy pathactivation.cc
More file actions
104 lines (91 loc) · 3.18 KB
/
Copy pathactivation.cc
File metadata and controls
104 lines (91 loc) · 3.18 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
// Copyright 2023 Google LLC
//
// 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
//
// https://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.
#include "runtime/activation.h"
#include <memory>
#include <utility>
#include <vector>
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "absl/synchronization/mutex.h"
#include "absl/types/optional.h"
#include "base/function.h"
#include "base/function_descriptor.h"
#include "base/handle.h"
#include "base/value.h"
#include "runtime/function_overload_reference.h"
namespace cel {
absl::StatusOr<absl::optional<Handle<Value>>> Activation::FindVariable(
ValueFactory& factory, absl::string_view name) const {
auto iter = values_.find(name);
if (iter == values_.end()) {
return absl::nullopt;
}
const ValueEntry& entry = iter->second;
if (entry.provider.has_value()) {
return ProvideValue(factory, name);
}
return entry.value;
}
absl::StatusOr<absl::optional<Handle<Value>>> Activation::ProvideValue(
ValueFactory& factory, absl::string_view name) const {
absl::MutexLock lock(&mutex_);
auto iter = values_.find(name);
ABSL_ASSERT(iter != values_.end());
ValueEntry& entry = iter->second;
if (entry.value) {
return entry.value;
}
auto result = (*entry.provider)(factory, name);
if (result.ok() && result->has_value()) {
entry.value = **result;
}
return result;
}
std::vector<FunctionOverloadReference> Activation::FindFunctionOverloads(
absl::string_view name) const {
std::vector<FunctionOverloadReference> result;
auto iter = functions_.find(name);
if (iter != functions_.end()) {
const std::vector<FunctionEntry>& overloads = iter->second;
result.reserve(overloads.size());
for (const auto& overload : overloads) {
result.push_back({*overload.descriptor, *overload.implementation});
}
}
return result;
}
bool Activation::InsertOrAssignValue(absl::string_view name,
Handle<Value> value) {
return values_.insert_or_assign(name, {std::move(value), absl::nullopt})
.second;
}
bool Activation::InsertOrAssignValueProvider(absl::string_view name,
ValueProvider provider) {
return values_
.insert_or_assign(name, ValueEntry{Handle<Value>(), std::move(provider)})
.second;
}
bool Activation::InsertFunction(const cel::FunctionDescriptor& descriptor,
std::unique_ptr<cel::Function> impl) {
auto& overloads = functions_[descriptor.name()];
for (auto& overload : overloads) {
if (overload.descriptor->ShapeMatches(descriptor)) {
return false;
}
}
overloads.push_back(
{std::make_unique<FunctionDescriptor>(descriptor), std::move(impl)});
return true;
}
} // namespace cel