Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-06 20:20:14 +01:00
Code Issues Actions 52 Packages Projects Releases Wiki Activity

py: Define and use MP_OBJ_ITER_BUF_NSLOTS to get size of stack iter buf.

Browse Source 
It improves readability of code and reduces the chance to make a mistake.

This patch also fixes a bug with nan-boxing builds by rounding up the
calculation of the new NSLOTS variable, giving the correct number of slots
(being 4) even if mp_obj_t is larger than the native machine size.
This commit is contained in:
Damien George
2017-03-23 16:36:08 +11:00
parent 507119f4d8
commit 60656eaea4
5 changed files with 24 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
py/emitbc.c
View File

@@ -735,7 +735,7 @@ void mp_emit_bc_unwind_jump(emit_t *emit, mp_uint_t label, mp_uint_t except_dept
// need to pop the iterator if we are breaking out of a for loop
emit_write_bytecode_byte(emit, MP_BC_POP_TOP);
// also pop the iter_buf
for (size_t i = 0; i < sizeof(mp_obj_iter_buf_t) / sizeof(mp_obj_t) - 1; ++i) {
for (size_t i = 0; i < MP_OBJ_ITER_BUF_NSLOTS - 1; ++i) {
emit_write_bytecode_byte(emit, MP_BC_POP_TOP);
}
}
@@ -778,7 +778,7 @@ void mp_emit_bc_end_finally(emit_t *emit) {
}
void mp_emit_bc_get_iter(emit_t *emit, bool use_stack) {
emit_bc_pre(emit, use_stack ? sizeof(mp_obj_iter_buf_t) / sizeof(mp_obj_t) - 1 : 0);
emit_bc_pre(emit, use_stack ? MP_OBJ_ITER_BUF_NSLOTS - 1 : 0);
emit_write_bytecode_byte(emit, use_stack ? MP_BC_GET_ITER_STACK : MP_BC_GET_ITER);
}
@@ -788,7 +788,7 @@ void mp_emit_bc_for_iter(emit_t *emit, mp_uint_t label) {
}
void mp_emit_bc_for_iter_end(emit_t *emit) {
emit_bc_pre(emit, -(sizeof(mp_obj_iter_buf_t) / sizeof(mp_obj_t)));
emit_bc_pre(emit, -MP_OBJ_ITER_BUF_NSLOTS);
}
void mp_emit_bc_pop_block(emit_t *emit) {