Bug: Global variables

[ronnuriel]

Lpython is not recognizing global variables:

from lpython import i32, f64, i64, dataclass, ccall, union, Union, packed, u32, u16, u64, CPtr, sizeof, c_p_pointer, \
    Pointer
import numpy as np

@dataclass
class db_data:
    num_records: u32 = u32(0)


g_db_data: db_data = db_data()

def foo() -> None:
    global g_db_data
    g_db_data.num_records = 2
    print('hi', g_db_data.num_records)

foo()

Error massage:

semantic error: Variable: 'g_db_data' is not declared
  --> /Users/ronnuriel/Desktop/testlpython.py:14:5
   |
14 |     g_db_data.num_records = 2
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ 

The following works:

from lpython import i32, f64, i64, dataclass, ccall, union, Union, packed, u32, u16, u64, CPtr, sizeof, c_p_pointer, \
    Pointer
import numpy as np

@dataclass
class db_data:
    num_records: u32 = u32(0)


g_db_data: db_data = db_data()

def foo() -> None:
    global g_db_data
    # g_db_data.num_records = 2
    print('hi', g_db_data.num_records)

foo()

[certik]

Thanks! I can reproduce it also. We need to fix it.

[Smit-create]

There are two bugs here:

1. AnnAssign is skipped in the Symbol table visitor
2. global is ignored in ASR.