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183 lines (150 loc) · 3.62 KB
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/**
*
* @file Engine.cpp
* @author Gaspard Kirira
*
* Copyright 2025, Gaspard Kirira.
* All rights reserved.
* https://github.com/vixcpp/vix
*
* Use of this source code is governed by a MIT license
* that can be found in the License file.
*
* Vix.cpp
*
*/
#include <vix/template/Engine.hpp>
#include <utility>
namespace vix::template_
{
Engine::Engine(std::shared_ptr<Loader> loader)
: environment_(std::move(loader))
{
}
Engine::Engine(
std::shared_ptr<Loader> loader,
CachePolicy cache_policy)
: environment_(std::move(loader)),
cache_(std::move(cache_policy))
{
}
void Engine::set_auto_escape(bool enabled) noexcept
{
environment_.set_auto_escape(enabled);
}
bool Engine::auto_escape() const noexcept
{
return environment_.auto_escape();
}
void Engine::set_cache_enabled(bool enabled) noexcept
{
cache_enabled_ = enabled;
}
bool Engine::cache_enabled() const noexcept
{
return cache_enabled_;
}
const Cache &Engine::cache() const noexcept
{
return cache_;
}
Cache &Engine::cache() noexcept
{
return cache_;
}
bool Engine::invalidate(const std::string &name)
{
return cache_.invalidate(name);
}
void Engine::clear_cache() noexcept
{
cache_.clear();
}
Template Engine::load(const std::string &name)
{
Template compiled = environment_.load(name);
compiled.set_source_signature(make_source_signature(name));
return compiled;
}
std::shared_ptr<const Template> Engine::load_shared(const std::string &name)
{
const std::string source_signature = make_source_signature(name);
if (cache_enabled_)
{
if (auto cached = cache_.get(name, source_signature))
{
return cached;
}
}
Template compiled = environment_.load(name);
compiled.set_source_signature(source_signature);
auto shared_compiled =
std::make_shared<Template>(std::move(compiled));
if (cache_enabled_)
{
cache_.put(name, shared_compiled, source_signature);
}
return shared_compiled;
}
RenderResult Engine::render(
const std::string &name,
const Context &context)
{
const std::string source_signature = make_source_signature(name);
bool from_cache = false;
std::shared_ptr<const Template> tpl;
if (cache_enabled_)
{
tpl = cache_.get(name, source_signature);
if (tpl)
{
from_cache = true;
}
}
if (!tpl)
{
Template compiled = environment_.load(name);
compiled.set_source_signature(source_signature);
auto shared_compiled =
std::make_shared<Template>(std::move(compiled));
if (cache_enabled_)
{
cache_.put(name, shared_compiled, source_signature);
}
tpl = std::move(shared_compiled);
}
if (!tpl)
{
return RenderResult{
.output = "",
.from_cache = false,
.escaped = auto_escape(),
.success = false};
}
RenderResult result = tpl->render(context, auto_escape());
result.from_cache = from_cache;
return result;
}
RenderResult Engine::render(
const std::string &name,
const Object &values)
{
return render(name, Context(values));
}
const Environment &Engine::environment() const noexcept
{
return environment_;
}
Environment &Engine::environment() noexcept
{
return environment_;
}
std::string Engine::make_source_signature(const std::string &name) const
{
if (const auto &loader = environment_.loader())
{
return loader->source_signature(name);
}
return {};
}
} // namespace vix::template_