2024-06-25 22:21:41 -04:00
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/*
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* <Short Description>
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* Copyright (C) 2024 Brett Terpstra
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <blt/gp/tree.h>
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2024-06-26 20:24:58 -04:00
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#include <blt/gp/stack.h>
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#include <blt/std/assert.h>
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#include <blt/std/logging.h>
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namespace blt::gp
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{
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2024-06-26 20:24:58 -04:00
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inline auto empty_callable = detail::callable_t([](void*, stack_allocator&, stack_allocator&) { BLT_ABORT("This should never be called!"); });
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2024-06-25 22:21:41 -04:00
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evaluation_context tree_t::evaluate(void* context)
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{
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2024-06-26 20:24:58 -04:00
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// copy the initial values
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evaluation_context results{};
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2024-06-25 22:21:41 -04:00
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2024-06-26 20:24:58 -04:00
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auto value_stack = values;
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auto& values_process = results.values;
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auto operations_stack = operations;
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2024-06-25 22:21:41 -04:00
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2024-06-26 20:24:58 -04:00
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while (!operations_stack.empty())
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{
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auto operation = operations_stack.back();
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// keep the last value in the stack on the process stack stored in the eval context, this way it can be accessed easily.
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operations_stack.pop_back();
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if (operation.is_value)
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{
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operation.transfer(values_process, value_stack);
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continue;
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}
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operation.func(context, values_process, value_stack);
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operations_stack.emplace_back(empty_callable, operation.transfer, true);
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}
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2024-06-25 22:21:41 -04:00
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return results;
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}
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}
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