Commit work in progress changes

1 files changed, 73 insertions, 0 deletions

diff --git a/lib/compile.c b/lib/compile.c
new file mode 100644
index 0000000..ce7b5db
--- /dev/null
+++ b/lib/compile.c
@@ -0,0 +1,73 @@
+/* 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);
+}