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-rw-r--r--py/builtineval.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/py/builtineval.c b/py/builtineval.c
new file mode 100644
index 0000000000..a8a7a476a3
--- /dev/null
+++ b/py/builtineval.c
@@ -0,0 +1,50 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+
+#include "nlr.h"
+#include "misc.h"
+#include "mpconfig.h"
+#include "lexer.h"
+#include "lexerunix.h"
+#include "parse.h"
+#include "obj.h"
+#include "compile.h"
+#include "runtime0.h"
+#include "runtime.h"
+#include "map.h"
+#include "builtin.h"
+
+static mp_obj_t mp_builtin_eval(mp_obj_t o_in) {
+ const char *str = qstr_str(mp_obj_get_qstr(o_in));
+
+ // create the lexer
+ mp_lexer_t *lex = mp_lexer_new_from_str_len("<string>", str, strlen(str), 0);
+
+ // parse the string
+ qstr parse_exc_id;
+ const char *parse_exc_msg;
+ mp_parse_node_t pn = mp_parse(lex, MP_PARSE_EVAL_INPUT, &parse_exc_id, &parse_exc_msg);
+ mp_lexer_free(lex);
+
+ if (pn == MP_PARSE_NODE_NULL) {
+ // parse error; raise exception
+ nlr_jump(mp_obj_new_exception_msg(parse_exc_id, parse_exc_msg));
+ }
+
+ // compile the string
+ mp_obj_t module_fun = mp_compile(pn, false);
+
+ if (module_fun == mp_const_none) {
+ // TODO handle compile error correctly
+ return mp_const_none;
+ }
+
+ // complied successfully, execute it
+ return rt_call_function_0(module_fun);
+}
+
+MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_eval_obj, mp_builtin_eval);