1 files changed, 30 insertions, 0 deletions
diff --git a/src_c/env.h b/src_c/env.h
new file mode 100644
index 0000000..026cd18
--- /dev/null
+++ b/src_c/env.h
@@ -0,0 +1,30 @@
+#ifndef LISP16_ENV_H
+#define LISP16_ENV_H
+
+#include "mem.h"
+#include "stream.h"
+
+
+typedef struct {
+    lsp_mem_t *m;
+    lsp_in_stream_t *in;
+    lsp_out_stream_t *out;
+
+    // internal
+    struct {
+        lsp_bool_t is_value;
+        lsp_addr_t ctx;
+        lsp_addr_t value;
+    } result;
+} lsp_env_t;
+
+
+void lsp_env_init(lsp_env_t *e, lsp_mem_t *m, lsp_in_stream_t *in,
+                  lsp_out_stream_t *out);
+lsp_status_t lsp_env_set_result_value(lsp_env_t *e, lsp_addr_t value);
+lsp_status_t lsp_env_set_result_eval(lsp_env_t *e, lsp_addr_t ctx,
+                                     lsp_addr_t value);
+lsp_status_t lsp_env_resolve(lsp_env_t *e, lsp_addr_t ctx, lsp_addr_t value,
+                             lsp_addr_t *result);
+
+#endif