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// Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
//
// 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.
#include "src/buildtool/build_engine/base_maps/expression_map.hpp"
#include <optional>
#include <string>
#include <utility> // std::move
#include "fmt/core.h"
#include "src/buildtool/build_engine/base_maps/field_reader.hpp"
namespace BuildMaps::Base {
auto CreateExpressionMap(
gsl::not_null<ExpressionFileMap*> const& expr_file_map,
gsl::not_null<const RepositoryConfig*> const& repo_config,
std::size_t jobs) -> ExpressionFunctionMap {
auto expr_func_creator = [expr_file_map, repo_config](auto ts,
auto setter,
auto logger,
auto subcaller,
auto const& id) {
if (not id.IsDefinitionName()) {
(*logger)(
fmt::format("{} cannot name an expression", id.ToString()),
true);
return;
}
expr_file_map->ConsumeAfterKeysReady(
ts,
{id.ToModule()},
[repo_config,
setter = std::move(setter),
logger,
subcaller = std::move(subcaller),
id](auto json_values) {
auto const& target = id.GetNamedTarget();
auto func_it = json_values[0]->find(target.name);
if (func_it == json_values[0]->end()) {
(*logger)(fmt::format("Cannot find expression {}",
EntityName(target).ToString()),
true);
return;
}
auto reader = FieldReader::Create(
func_it.value(), id, "expression", logger);
if (not reader) {
return;
}
auto expr = reader->ReadExpression("expression");
if (not expr) {
return;
}
auto vars = reader->ReadStringList("vars");
if (not vars) {
return;
}
auto import_aliases =
reader->ReadEntityAliasesObject("imports", repo_config);
if (not import_aliases) {
return;
}
auto [names, ids] = std::move(*import_aliases).Obtain();
auto wrapped_logger = std::make_shared<AsyncMapConsumerLogger>(
[logger, id](auto msg, auto fatal) {
(*logger)(
fmt::format("While handling imports of {}:\n{}",
id.ToString(),
msg),
fatal);
});
(*subcaller)(
std::move(ids),
[setter = std::move(setter),
vars = std::move(*vars),
names = std::move(names),
expr = std::move(expr)](auto const& expr_funcs) {
auto imports = ExpressionFunction::imports_t{};
imports.reserve(expr_funcs.size());
for (std::size_t i{}; i < expr_funcs.size(); ++i) {
imports.emplace(names[i], *expr_funcs[i]);
}
(*setter)(std::make_shared<ExpressionFunction>(
vars, imports, expr));
},
wrapped_logger);
},
[logger, id](auto msg, auto fatal) {
(*logger)(
fmt::format("While reading expression file in {}:\n{}",
id.GetNamedTarget().module,
msg),
fatal);
});
};
return ExpressionFunctionMap{expr_func_creator, jobs};
}
} // namespace BuildMaps::Base
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