103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
/** @file VirtualSchematikaMachine.cpp
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*
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* @author Roland Conybeare, Jan 2026
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**/
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#include "VirtualSchematikaMachine.hpp"
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#include <xo/expression2/detail/IExpression_DConstant.hpp>
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#include <xo/expression2/DConstant.hpp>
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#include <cassert>
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namespace xo {
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namespace scm {
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VirtualSchematikaMachine::VirtualSchematikaMachine()
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{}
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void
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VirtualSchematikaMachine::run()
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{
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while (this->execute_one())
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;
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}
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bool
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VirtualSchematikaMachine::execute_one()
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{
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switch (pc_.opcode()) {
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case vsm_opcode::halt:
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case vsm_opcode::N:
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return false;
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case vsm_opcode::eval:
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_do_eval_op();
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}
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return true;
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}
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void
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VirtualSchematikaMachine::_do_eval_op()
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{
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switch(expr_.extype()) {
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case exprtype::invalid:
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case exprtype::N:
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break;
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case exprtype::constant:
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_do_eval_constant_op();
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break;
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case exprtype::define:
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_do_eval_define_op();
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break;
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case exprtype::variable:
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_do_eval_variable_op();
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break;
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case exprtype::apply:
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_do_eval_apply_op();
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break;
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case exprtype::ifexpr:
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_do_eval_if_else_op();
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break;
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}
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}
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void
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VirtualSchematikaMachine::_do_eval_constant_op()
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{
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auto expr
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= obj<AExpression,DConstant>::from(expr_);
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this->value_ = expr.data()->value();
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this->pc_ = this->cont_;
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}
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void
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VirtualSchematikaMachine::_do_eval_define_op()
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{
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// not implemented
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assert(false);
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}
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void
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VirtualSchematikaMachine::_do_eval_variable_op()
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{
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// not implemented
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assert(false);
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}
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void
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VirtualSchematikaMachine::_do_eval_apply_op()
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{
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// not implemented
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assert(false);
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}
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void
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VirtualSchematikaMachine::_do_eval_if_else_op()
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{
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// not implemented
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assert(false);
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}
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} /*namespace scm*/
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} /*namespace xo*/
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/* end VirtualSchematikaMachine.hpp */
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