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Merge branch 'master' of github.com:micropython/micropython

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This commit is contained in:
Damien George 2014-03-29 21:58:36 +00:00
commit d40d8f1e16
2 changed files with 21 additions and 10 deletions
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22
py/vm.c
View File

@ -45,7 +45,7 @@ typedef enum {
#define TOP() (*sp) #define TOP() (*sp)
#define SET_TOP(val) *sp = (val) #define SET_TOP(val) *sp = (val)
#define SETUP_BLOCK() \ #define PUSH_EXC_BLOCK() \
DECODE_ULABEL; /* except labels are always forward */ \ DECODE_ULABEL; /* except labels are always forward */ \
++exc_sp; \ ++exc_sp; \
exc_sp->opcode = op; \ exc_sp->opcode = op; \
@ -53,6 +53,10 @@ typedef enum {
exc_sp->val_sp = MP_TAGPTR_MAKE(sp, currently_in_except_block); \ exc_sp->val_sp = MP_TAGPTR_MAKE(sp, currently_in_except_block); \
currently_in_except_block = 0; /* in a try block now */ currently_in_except_block = 0; /* in a try block now */
#define POP_EXC_BLOCK() \
currently_in_except_block = MP_TAGPTR_TAG(exc_sp->val_sp); /* restore previous state */ \
exc_sp--; /* pop back to previous exception handler */
mp_vm_return_kind_t mp_execute_byte_code(const byte *code, const mp_obj_t *args, uint n_args, const mp_obj_t *args2, uint n_args2, mp_obj_t *ret) { mp_vm_return_kind_t mp_execute_byte_code(const byte *code, const mp_obj_t *args, uint n_args, const mp_obj_t *args2, uint n_args2, mp_obj_t *ret) {
const byte *ip = code; const byte *ip = code;
@ -386,7 +390,7 @@ dispatch_loop:
SET_TOP(rt_load_attr(obj1, MP_QSTR___exit__)); SET_TOP(rt_load_attr(obj1, MP_QSTR___exit__));
rt_load_method(obj1, MP_QSTR___enter__, sp + 1); rt_load_method(obj1, MP_QSTR___enter__, sp + 1);
obj2 = rt_call_method_n_kw(0, 0, sp + 1); obj2 = rt_call_method_n_kw(0, 0, sp + 1);
SETUP_BLOCK(); PUSH_EXC_BLOCK();
PUSH(obj2); PUSH(obj2);
break; break;
@ -478,7 +482,7 @@ unwind_jump:
// matched against: POP_BLOCK or POP_EXCEPT (anything else?) // matched against: POP_BLOCK or POP_EXCEPT (anything else?)
case MP_BC_SETUP_EXCEPT: case MP_BC_SETUP_EXCEPT:
case MP_BC_SETUP_FINALLY: case MP_BC_SETUP_FINALLY:
SETUP_BLOCK(); PUSH_EXC_BLOCK();
break; break;
case MP_BC_END_FINALLY: case MP_BC_END_FINALLY:
@ -527,8 +531,7 @@ unwind_jump:
case MP_BC_POP_BLOCK: case MP_BC_POP_BLOCK:
// we are exiting an exception handler, so pop the last one of the exception-stack // we are exiting an exception handler, so pop the last one of the exception-stack
assert(exc_sp >= exc_stack); assert(exc_sp >= exc_stack);
currently_in_except_block = MP_TAGPTR_TAG(exc_sp->val_sp); // restore previous state POP_EXC_BLOCK();
exc_sp--; // pop back to previous exception handler
break; break;
// matched against: SETUP_EXCEPT // matched against: SETUP_EXCEPT
@ -539,8 +542,7 @@ unwind_jump:
assert(currently_in_except_block); assert(currently_in_except_block);
//sp = (mp_obj_t*)(*exc_sp--); //sp = (mp_obj_t*)(*exc_sp--);
//exc_sp--; // discard ip //exc_sp--; // discard ip
currently_in_except_block = MP_TAGPTR_TAG(exc_sp->val_sp); // restore previous state POP_EXC_BLOCK();
exc_sp--; // pop back to previous exception handler
//sp -= 3; // pop 3 exception values //sp -= 3; // pop 3 exception values
break; break;
@ -697,6 +699,9 @@ unwind_return:
unum = *ip++; unum = *ip++;
assert(unum <= 1); assert(unum <= 1);
if (unum == 0) { if (unum == 0) {
if (!currently_in_except_block) {
nlr_jump(mp_obj_new_exception_msg(&mp_type_RuntimeError, "No active exception to reraise"));
}
// This assumes that nlr.ret_val holds last raised // This assumes that nlr.ret_val holds last raised
// exception and is not overwritten since then. // exception and is not overwritten since then.
obj1 = nlr.ret_val; obj1 = nlr.ret_val;
@ -827,8 +832,7 @@ yield:
// at the moment we are just raising the very last exception (the one that caused the nested exception) // at the moment we are just raising the very last exception (the one that caused the nested exception)
// move up to previous exception handler // move up to previous exception handler
currently_in_except_block = MP_TAGPTR_TAG(exc_sp->val_sp); // restore previous state POP_EXC_BLOCK();
exc_sp--; // pop back to previous exception handler
} }
if (exc_sp >= exc_stack) { if (exc_sp >= exc_stack) {

9
tests/basics/try-reraise.py
View File

@ -1,4 +1,4 @@
# Re-reraising last exception with raise w/o args # Reraising last exception with raise w/o args
def f(): def f():
try: try:
@ -10,3 +10,10 @@ try:
f() f()
except ValueError as e: except ValueError as e:
print(repr(e)) print(repr(e))
# Can reraise only in except block
try:
raise
except RuntimeError:
print("RuntimeError")