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Use _handle_name_expr in eval_expr

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This commit is contained in:
Pragyansh Chaturvedi
2025-10-02 22:50:21 +05:30
parent 44cbcccb6c
commit 729270b34b
1 changed files with 5 additions and 9 deletions
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14
pythonbpf/expr_pass.py
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@ -29,13 +29,7 @@ def eval_expr(
): ):
logger.info(f"Evaluating expression: {ast.dump(expr)}") logger.info(f"Evaluating expression: {ast.dump(expr)}")
if isinstance(expr, ast.Name): if isinstance(expr, ast.Name):
if expr.id in local_sym_tab: return _handle_name_expr(expr, local_sym_tab, builder)
var = local_sym_tab[expr.id].var
val = builder.load(var)
return val, local_sym_tab[expr.id].ir_type # return value and type
else:
logger.info(f"Undefined variable {expr.id}")
return None
elif isinstance(expr, ast.Constant): elif isinstance(expr, ast.Constant):
if isinstance(expr.value, int): if isinstance(expr.value, int):
return ir.Constant(ir.IntType(64), expr.value), ir.IntType(64) return ir.Constant(ir.IntType(64), expr.value), ir.IntType(64)
@ -123,8 +117,10 @@ def eval_expr(
attr_name = expr.attr attr_name = expr.attr
if var_name in local_sym_tab: if var_name in local_sym_tab:
var_ptr, var_type, var_metadata = local_sym_tab[var_name] var_ptr, var_type, var_metadata = local_sym_tab[var_name]
logger.info(f"Loading attribute {attr_name} from variable {var_name}") logger.info(f"Loading attribute {
logger.info(f"Variable type: {var_type}, Variable ptr: {var_ptr}") attr_name} from variable {var_name}")
logger.info(f"Variable type: {
var_type}, Variable ptr: {var_ptr}")
metadata = structs_sym_tab[var_metadata] metadata = structs_sym_tab[var_metadata]
if attr_name in metadata.fields: if attr_name in metadata.fields:
gep = metadata.gep(builder, var_ptr, attr_name) gep = metadata.gep(builder, var_ptr, attr_name)