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/* Aplwc - A Programming Language With Constraints
*
* Copyright (C) 2026 Peter Mikkelsen <petermikkelsen10@gmail.com>
*
* This file is part of aplwc.
*
* Aplwc is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Aplwc is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with aplwc. If not, see <https://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdio.h>
#include <aplwc.h>
#include "aplwc_internal.h"
static void compile(struct aplwc_eval_context *, struct aplwc_ast *);
static void emit(struct aplwc_eval_context *, uint64_t instr);
static void emit_t0(struct aplwc_eval_context *, enum aplwc_instr_tag);
static uint64_t encode_t0(enum aplwc_instr_tag);
void
aplwc_compile(struct aplwc_eval_context *context)
{
compile(context, context->ast);
}
static void
compile(struct aplwc_eval_context *context, struct aplwc_ast *node)
{
context->instrs = context->aplwc->alloc(sizeof(*context->instrs));
memset(context->instrs, 0, sizeof(*context->instrs));
switch(node->tag){
case APLWC_AST_SYSCMD:
emit_t0(context, APLWC_INSTR_SYSCMD_CALL);
break;
case APLWC_AST_ERROR:
emit_t0(context, APLWC_INSTR_ERROR);
break;
}
emit_t0(context, APLWC_INSTR_END);
}
static void
emit(struct aplwc_eval_context *context, uint64_t instr)
{
context->instrs->n_instrs++;
context->instrs->instrs = context->aplwc->realloc(context->instrs->instrs, sizeof(*context->instrs->instrs) * context->instrs->n_instrs);
context->instrs->instrs[context->instrs->n_instrs-1] = instr;
}
static void
emit_t0(struct aplwc_eval_context *context, enum aplwc_instr_tag op)
{
struct aplwc_instr instr = {
.type = 0,
.op = op,
};
aplwc_encode_instr(&instr);
emit(context, instr.encoded);
}
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