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py: Viper can call functions with native types, and raise exceptions.

This commit is contained in:
Damien George 2014-08-16 22:06:11 +01:00
parent 339bdccc58
commit 86de21b810
6 changed files with 146 additions and 92 deletions
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146
py/emitnative.c
View File

@ -530,56 +530,6 @@ STATIC void emit_post_push_reg_reg_reg_reg(emit_t *emit, vtype_kind_t vtypea, in
emit_post_push_reg(emit, vtyped, regd);
}
// vtype of all n_pop objects is VTYPE_PYOBJ
// does not use any temporary registers (but may use reg_dest before loading it with stack pointer)
// TODO this needs some thinking for viper code
STATIC void emit_get_stack_pointer_to_reg_for_pop(emit_t *emit, int reg_dest, int n_pop) {
need_reg_all(emit);
for (int i = 0; i < n_pop; i++) {
stack_info_t *si = &emit->stack_info[emit->stack_size - 1 - i];
// must push any imm's to stack
// must convert them to VTYPE_PYOBJ for viper code
if (si->kind == STACK_IMM) {
si->kind = STACK_VALUE;
switch (si->vtype) {
case VTYPE_PYOBJ:
ASM_MOV_IMM_TO_LOCAL_USING(si->u_imm, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
break;
case VTYPE_BOOL:
si->vtype = VTYPE_PYOBJ;
if (si->u_imm == 0) {
ASM_MOV_IMM_TO_LOCAL_USING((mp_uint_t)mp_const_false, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
} else {
ASM_MOV_IMM_TO_LOCAL_USING((mp_uint_t)mp_const_true, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
}
break;
case VTYPE_INT:
si->vtype = VTYPE_PYOBJ;
ASM_MOV_IMM_TO_LOCAL_USING((si->u_imm << 1) | 1, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
break;
default:
// not handled
assert(0);
}
}
assert(si->kind == STACK_VALUE);
assert(si->vtype == VTYPE_PYOBJ);
}
adjust_stack(emit, -n_pop);
ASM_MOV_LOCAL_ADDR_TO_REG(emit->stack_start + emit->stack_size, reg_dest);
}
// vtype of all n_push objects is VTYPE_PYOBJ
STATIC void emit_get_stack_pointer_to_reg_for_push(emit_t *emit, int reg_dest, int n_push) {
need_reg_all(emit);
for (int i = 0; i < n_push; i++) {
emit->stack_info[emit->stack_size + i].kind = STACK_VALUE;
emit->stack_info[emit->stack_size + i].vtype = VTYPE_PYOBJ;
}
ASM_MOV_LOCAL_ADDR_TO_REG(emit->stack_start + emit->stack_size, reg_dest);
adjust_stack(emit, n_push);
}
STATIC void emit_call(emit_t *emit, mp_fun_kind_t fun_kind, void *fun) {
need_reg_all(emit);
#if N_X64
@ -634,26 +584,84 @@ STATIC void emit_call_with_3_imm_args_and_first_aligned(emit_t *emit, mp_fun_kin
#endif
}
STATIC void emit_native_load_id(emit_t *emit, qstr qstr) {
// check for built-ins
if (strcmp(qstr_str(qstr), "v_int") == 0) {
assert(0);
emit_native_pre(emit);
//emit_post_push_blank(emit, VTYPE_BUILTIN_V_INT);
// vtype of all n_pop objects is VTYPE_PYOBJ
// Will convert any items that are not VTYPE_PYOBJ to this type and put them back on the stack.
// If any conversions of non-immediate values are needed, then it uses REG_ARG_1, REG_ARG_2 and REG_RET.
// Otherwise, it does not use any temporary registers (but may use reg_dest before loading it with stack pointer).
STATIC void emit_get_stack_pointer_to_reg_for_pop(emit_t *emit, mp_uint_t reg_dest, mp_uint_t n_pop) {
need_reg_all(emit);
// not a built-in, so do usual thing
} else {
emit_common_load_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
// First, store any immediate values to their respective place on the stack.
for (mp_uint_t i = 0; i < n_pop; i++) {
stack_info_t *si = &emit->stack_info[emit->stack_size - 1 - i];
// must push any imm's to stack
// must convert them to VTYPE_PYOBJ for viper code
if (si->kind == STACK_IMM) {
si->kind = STACK_VALUE;
switch (si->vtype) {
case VTYPE_PYOBJ:
ASM_MOV_IMM_TO_LOCAL_USING(si->u_imm, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
break;
case VTYPE_BOOL:
if (si->u_imm == 0) {
ASM_MOV_IMM_TO_LOCAL_USING((mp_uint_t)mp_const_false, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
} else {
ASM_MOV_IMM_TO_LOCAL_USING((mp_uint_t)mp_const_true, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
}
si->vtype = VTYPE_PYOBJ;
break;
case VTYPE_INT:
case VTYPE_UINT:
ASM_MOV_IMM_TO_LOCAL_USING((si->u_imm << 1) | 1, emit->stack_start + emit->stack_size - 1 - i, reg_dest);
si->vtype = VTYPE_PYOBJ;
break;
default:
// not handled
assert(0);
}
}
// verify that this value is on the stack
assert(si->kind == STACK_VALUE);
}
// Second, convert any non-VTYPE_PYOBJ to that type.
for (mp_uint_t i = 0; i < n_pop; i++) {
stack_info_t *si = &emit->stack_info[emit->stack_size - 1 - i];
if (si->vtype != VTYPE_PYOBJ) {
mp_uint_t local_num = emit->stack_start + emit->stack_size - 1 - i;
ASM_MOV_LOCAL_TO_REG(local_num, REG_ARG_1);
emit_call_with_imm_arg(emit, MP_F_CONVERT_NATIVE_TO_OBJ, mp_convert_native_to_obj, si->vtype, REG_ARG_2); // arg2 = type
ASM_MOV_REG_TO_LOCAL(REG_RET, local_num);
si->vtype = VTYPE_PYOBJ;
}
}
// Adujust the stack for a pop of n_pop items, and load the stack pointer into reg_dest.
adjust_stack(emit, -n_pop);
ASM_MOV_LOCAL_ADDR_TO_REG(emit->stack_start + emit->stack_size, reg_dest);
}
// vtype of all n_push objects is VTYPE_PYOBJ
STATIC void emit_get_stack_pointer_to_reg_for_push(emit_t *emit, mp_uint_t reg_dest, mp_uint_t n_push) {
need_reg_all(emit);
for (mp_uint_t i = 0; i < n_push; i++) {
emit->stack_info[emit->stack_size + i].kind = STACK_VALUE;
emit->stack_info[emit->stack_size + i].vtype = VTYPE_PYOBJ;
}
ASM_MOV_LOCAL_ADDR_TO_REG(emit->stack_start + emit->stack_size, reg_dest);
adjust_stack(emit, n_push);
}
STATIC void emit_native_load_id(emit_t *emit, qstr qstr) {
emit_common_load_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
}
STATIC void emit_native_store_id(emit_t *emit, qstr qstr) {
// TODO check for built-ins and disallow
emit_common_store_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
}
STATIC void emit_native_delete_id(emit_t *emit, qstr qstr) {
// TODO check for built-ins and disallow
emit_common_delete_id(emit, &EXPORT_FUN(method_table), emit->scope, qstr);
}
@ -1396,7 +1404,7 @@ STATIC void emit_native_call_function(emit_t *emit, int n_positional, int n_keyw
vtype_kind_t vtype_fun;
emit_pre_pop_reg(emit, &vtype_fun, REG_ARG_1); // the function
assert(vtype_fun == VTYPE_PYOBJ);
emit_call_with_imm_arg(emit, MP_F_CALL_FUNCTION_N_KW_FOR_NATIVE, mp_call_function_n_kw_for_native, n_positional | (n_keyword << 8), REG_ARG_2);
emit_call_with_imm_arg(emit, MP_F_NATIVE_CALL_FUNCTION_N_KW, mp_native_call_function_n_kw, n_positional | (n_keyword << 8), REG_ARG_2);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
}
@ -1453,13 +1461,13 @@ STATIC void emit_native_return_value(emit_t *emit) {
STATIC void emit_native_raise_varargs(emit_t *emit, int n_args) {
assert(n_args == 1);
vtype_kind_t vtype_err;
emit_pre_pop_reg(emit, &vtype_err, REG_ARG_1); // arg1 = object to raise
assert(vtype_err == VTYPE_PYOBJ);
emit_call(emit, 0, mp_make_raise_obj); // TODO need to add function to runtime table
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
emit_pre_pop_reg(emit, &vtype_err, REG_ARG_1);
emit_call(emit, 0, nlr_jump); // TODO need to add function to runtime table
vtype_kind_t vtype_exc;
emit_pre_pop_reg(emit, &vtype_exc, REG_ARG_1); // arg1 = object to raise
if (vtype_exc != VTYPE_PYOBJ) {
printf("ViperTypeError: must raise an object\n");
}
// TODO probably make this 1 call to the runtime (which could even call convert, native_raise(obj, type))
emit_call(emit, MP_F_NATIVE_RAISE, mp_native_raise);
}
STATIC void emit_native_yield_value(emit_t *emit) {

20
py/runtime.c
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@ -517,12 +517,6 @@ mp_obj_t mp_call_function_2(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2) {
return mp_call_function_n_kw(fun, 2, 0, args);
}
// wrapper that accepts n_args and n_kw in one argument
// native emitter can only pass at most 3 arguments to a function
mp_obj_t mp_call_function_n_kw_for_native(mp_obj_t fun_in, uint n_args_kw, const mp_obj_t *args) {
return mp_call_function_n_kw(fun_in, n_args_kw & 0xff, (n_args_kw >> 8) & 0xff, args);
}
// args contains, eg: arg0 arg1 key0 value0 key1 value1
mp_obj_t mp_call_function_n_kw(mp_obj_t fun_in, uint n_args, uint n_kw, const mp_obj_t *args) {
// TODO improve this: fun object can specify its type and we parse here the arguments,
@ -1187,6 +1181,17 @@ mp_obj_t mp_convert_native_to_obj(mp_uint_t val, mp_uint_t type) {
}
}
// wrapper that accepts n_args and n_kw in one argument
// (native emitter can only pass at most 3 arguments to a function)
mp_obj_t mp_native_call_function_n_kw(mp_obj_t fun_in, uint n_args_kw, const mp_obj_t *args) {
return mp_call_function_n_kw(fun_in, n_args_kw & 0xff, (n_args_kw >> 8) & 0xff, args);
}
// wrapper that makes raise obj and raises it
NORETURN void mp_native_raise(mp_obj_t o) {
nlr_raise(mp_make_raise_obj(o));
}
// these must correspond to the respective enum
void *const mp_fun_table[MP_F_NUMBER_OF] = {
mp_convert_obj_to_native,
@ -1216,10 +1221,11 @@ void *const mp_fun_table[MP_F_NUMBER_OF] = {
mp_obj_set_store,
#endif
mp_make_function_from_raw_code,
mp_call_function_n_kw_for_native,
mp_native_call_function_n_kw,
mp_call_method_n_kw,
mp_getiter,
mp_iternext,
mp_native_raise,
mp_import_name,
mp_import_from,
mp_import_all,

4
py/runtime.h
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@ -87,7 +87,6 @@ mp_obj_t mp_make_function_var_between(int n_args_min, int n_args_max, mp_fun_var
mp_obj_t mp_call_function_0(mp_obj_t fun);
mp_obj_t mp_call_function_1(mp_obj_t fun, mp_obj_t arg);
mp_obj_t mp_call_function_2(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2);
mp_obj_t mp_call_function_n_kw_for_native(mp_obj_t fun_in, uint n_args_kw, const mp_obj_t *args);
mp_obj_t mp_call_function_n_kw(mp_obj_t fun, uint n_args, uint n_kw, const mp_obj_t *args);
mp_obj_t mp_call_method_n_kw(uint n_args, uint n_kw, const mp_obj_t *args);
mp_obj_t mp_call_method_n_kw_var(bool have_self, uint n_args_n_kw, const mp_obj_t *args);
@ -115,8 +114,11 @@ void mp_import_all(mp_obj_t module);
// Raise NotImplementedError with given message
NORETURN void mp_not_implemented(const char *msg);
// helper functions for native/viper code
mp_uint_t mp_convert_obj_to_native(mp_obj_t obj, mp_uint_t type);
mp_obj_t mp_convert_native_to_obj(mp_uint_t val, mp_uint_t type);
mp_obj_t mp_native_call_function_n_kw(mp_obj_t fun_in, uint n_args_kw, const mp_obj_t *args);
NORETURN void mp_native_raise(mp_obj_t o);
extern struct _mp_obj_list_t mp_sys_path_obj;
extern struct _mp_obj_list_t mp_sys_argv_obj;

5
py/runtime0.h
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@ -129,12 +129,13 @@ typedef enum {
MP_F_STORE_SET,
#endif
MP_F_MAKE_FUNCTION_FROM_RAW_CODE,
MP_F_CALL_FUNCTION_N_KW_FOR_NATIVE,
MP_F_NATIVE_CALL_FUNCTION_N_KW,
MP_F_CALL_METHOD_N_KW,
MP_F_GETITER,
MP_F_ITERNEXT,
MP_F_NATIVE_RAISE,
MP_F_IMPORT_NAME,
MP_F_IMPORT_FROM,
MP_F_IMPORT_FROM, // = 31 XXX this is the limit for thumb code...
MP_F_IMPORT_ALL,
#if MICROPY_PY_BUILTINS_SLICE
MP_F_NEW_SLICE,

58
tests/micropython/viper.py
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@ -2,48 +2,80 @@ import micropython
# viper function taking and returning ints
@micropython.viper
def f(x:int, y:int) -> int:
def viper_int(x:int, y:int) -> int:
return x + y + 3
print(viper_int(1, 2))
# viper function taking and returning objects
@micropython.viper
def g(x:object, y:object) -> object:
def viper_object(x:object, y:object) -> object:
return x + y
print(viper_object(1, 2))
# a local (should have automatic type int)
@micropython.viper
def h(x:int) -> int:
def viper_local(x:int) -> int:
y = 4
return x + y
print(viper_local(3))
# without type annotation, types should default to object
@micropython.viper
def i(x, y):
def viper_no_annotation(x, y):
return x * y
print(viper_no_annotation(4, 5))
# a for loop
@micropython.viper
def viper_sum(a:int, b:int) -> int:
def viper_for(a:int, b:int) -> int:
total = 0
for x in range(a, b):
total += x
return total
print(viper_for(10, 10000))
# accessing a global
@micropython.viper
def access_global():
def viper_access_global():
global gl
gl = 1
return gl
print(viper_access_global(), gl)
# calling print with object and int types
@micropython.viper
def viper_print(x, y:int):
print(x, y + 1)
viper_print(1, 2)
# making a tuple from an object and an int
@micropython.viper
def viper_tuple(x, y:int):
return (x, y + 1)
print(viper_tuple(1, 2))
# making a list from an object and an int
@micropython.viper
def viper_list(x, y:int):
return [x, y + 1]
print(viper_list(1, 2))
# making a set from an object and an int
@micropython.viper
def viper_set(x, y:int):
return {x, y + 1}
print(sorted(list(viper_set(1, 2))))
# raising an exception
@micropython.viper
def viper_raise(x:int):
raise SystemError(x)
try:
viper_raise(1)
except SystemError as e:
print(repr(e))
# this doesn't work at the moment
#@micropython.viper
#def g() -> uint:
# return -1
print(f(1, 2))
print(g(1, 2))
print(h(3))
print(i(4, 5))
print(viper_sum(10, 10000))
print(access_global(), gl)

5
tests/micropython/viper.py.exp
View File

@ -4,3 +4,8 @@
20
49994955
1 1
1 3
(1, 3)
[1, 3]
[1, 3]
SystemError(1,)