From 98a627dc03bc02e1b827ead8cc71b02259731551 Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Thu, 3 Apr 2014 14:57:53 +0300
Subject: py: Add "io" module.

So far just includes "open" function, which should be supplied by a port.

TODO: Make the module #ifdef'ed.
---
 py/builtin.h       |  1 +
 py/builtintables.c |  3 +++
 py/modio.c         | 30 ++++++++++++++++++++++++++++++
 py/mpconfig.h      |  5 +++++
 py/py.mk           |  1 +
 py/qstrdefs.h      |  1 +
 6 files changed, 41 insertions(+)
 create mode 100644 py/modio.c

(limited to 'py')

diff --git a/py/builtin.h b/py/builtin.h
index 50269dfe1..3120e5baf 100644
--- a/py/builtin.h
+++ b/py/builtin.h
@@ -35,5 +35,6 @@ MP_DECLARE_CONST_FUN_OBJ(mp_namedtuple_obj);
 
 extern const mp_obj_module_t mp_module_array;
 extern const mp_obj_module_t mp_module_collections;
+extern const mp_obj_module_t mp_module_io;
 extern const mp_obj_module_t mp_module_math;
 extern const mp_obj_module_t mp_module_micropython;
diff --git a/py/builtintables.c b/py/builtintables.c
index 2cb9240bb..03fb92e56 100644
--- a/py/builtintables.c
+++ b/py/builtintables.c
@@ -121,6 +121,9 @@ STATIC const mp_builtin_elem_t builtin_module_table[] = {
     { MP_QSTR_micropython, (mp_obj_t)&mp_module_micropython },
 
     { MP_QSTR_array, (mp_obj_t)&mp_module_array },
+#if MICROPY_ENABLE_MOD_IO
+    { MP_QSTR_io, (mp_obj_t)&mp_module_io },
+#endif
     { MP_QSTR_collections, (mp_obj_t)&mp_module_collections },
 
 #if MICROPY_ENABLE_FLOAT
diff --git a/py/modio.c b/py/modio.c
new file mode 100644
index 000000000..ced398358
--- /dev/null
+++ b/py/modio.c
@@ -0,0 +1,30 @@
+#include "misc.h"
+#include "mpconfig.h"
+#include "qstr.h"
+#include "obj.h"
+#include "builtin.h"
+
+#if MICROPY_ENABLE_MOD_IO
+
+STATIC const mp_map_elem_t mp_module_io_globals_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_io) },
+    // Note: mp_builtin_open_obj should be defined by port, it's not
+    // part of the core.
+    { MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },
+};
+
+STATIC const mp_map_t mp_module_io_globals = {
+    .all_keys_are_qstrs = 1,
+    .table_is_fixed_array = 1,
+    .used = sizeof(mp_module_io_globals_table) / sizeof(mp_map_elem_t),
+    .alloc = sizeof(mp_module_io_globals_table) / sizeof(mp_map_elem_t),
+    .table = (mp_map_elem_t*)mp_module_io_globals_table,
+};
+
+const mp_obj_module_t mp_module_io = {
+    .base = { &mp_type_module },
+    .name = MP_QSTR_io,
+    .globals = (mp_map_t*)&mp_module_io_globals,
+};
+
+#endif
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 09cc37913..65577f06c 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -105,6 +105,11 @@ typedef double mp_float_t;
 #define MICROPY_ENABLE_FLOAT (0)
 #endif
 
+// Whether to provide "io" module
+#ifndef MICROPY_ENABLE_MOD_IO
+#define MICROPY_ENABLE_MOD_IO (1)
+#endif
+
 // Whether to support slice object and correspondingly
 // slice subscript operators
 #ifndef MICROPY_ENABLE_SLICE
diff --git a/py/py.mk b/py/py.mk
index e2e83eb36..059029274 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -78,6 +78,7 @@ PY_O_BASENAME = \
 	builtintables.o \
 	modarray.o \
 	modcollections.o \
+	modio.o \
 	modmath.o \
 	modmicropython.o \
 	vm.o \
diff --git a/py/qstrdefs.h b/py/qstrdefs.h
index 368b0fc8e..06548d0fa 100644
--- a/py/qstrdefs.h
+++ b/py/qstrdefs.h
@@ -98,6 +98,7 @@ Q(float)
 Q(getattr)
 Q(hash)
 Q(id)
+Q(io)
 Q(int)
 Q(isinstance)
 Q(issubclass)
-- 
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