seqs.c

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/* -*- C -*-
 * Serene programming language
 * Copyright (C) 2019-2026 Sameer Rahmani <[email protected]>
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "serene/rt/seqs.h"
 
#include "serene/rt/context.h"
#include "serene/rt/core.h"
#include "serene/rt/errors.h"
#include "serene/rt/impl/seq.h"
#include "serene/utils.h"
 
srn_value_t *srn_seq_empty(srn_context_t *ctx, srn_metadata_t *metadata) {
  PANIC_IF_NULL(ctx);
 
  srn_seq_t *s = ALLOC(ctx, srn_seq_t);
  s->inner = seq_empty(ctx);
 
  if (s->inner.maybe_error != nullptr) {
    return srn_errors_err_to_value(ctx, metadata, s->inner.maybe_error);
  }
 
  return srn_value_make(ctx, VSeq, metadata, (void *)s);
}
 
srn_value_t *srn_seq_conj(srn_context_t *ctx, srn_metadata_t *metadata, srn_value_t *seq,
                          srn_value_t *value) {
  PANIC_IF_NULL(ctx);
  PANIC_IF_NULL(seq);
  PANIC_IF_NULL(value);
 
  if (!IS_A(seq, VSeq)) {
    return srn_errors_make_error(ctx, metadata, ABSURD, "expected a seq");
  }
  srn_seq_t *old = AS_SEQ(seq);
  srn_seq_t *neu = ALLOC(ctx, srn_seq_t);
  neu->inner = seq_push(ctx, &old->inner, (seq_elem_t)value);
  if (neu->inner.maybe_error != nullptr) {
    return srn_errors_err_to_value(ctx, metadata, neu->inner.maybe_error);
  }
  return srn_value_make(ctx, VSeq, metadata, (void *)neu);
}