o UÌ h;ã@s0ddlmZdd„Zdd„Zdd„Zdd „Zd S) é)Úc_astcCsªt|tjƒsJ‚t|jtjƒs|St g|jj¡}d}|jjp gD].}t|tjtjfƒr>|j  |¡t ||jƒ|jd}q!|durI|j  |¡q!|j   |¡q!||_|S)aÜ The 'case' statements in a 'switch' come out of parsing with one child node, so subsequent statements are just tucked to the parent Compound. Additionally, consecutive (fall-through) case statements come out messy. This is a peculiarity of the C grammar. The following: switch (myvar) { case 10: k = 10; p = k + 1; return 10; case 20: case 30: return 20; default: break; } Creates this tree (pseudo-dump): Switch ID: myvar Compound: Case 10: k = 10 p = k + 1 return 10 Case 20: Case 30: return 20 Default: break The goal of this transform is to fix this mess, turning it into the following: Switch ID: myvar Compound: Case 10: k = 10 p = k + 1 return 10 Case 20: Case 30: return 20 Default: break A fixed AST node is returned. The argument may be modified. Néÿÿÿÿ) Ú isinstancerÚSwitchÚstmtÚCompoundÚcoordÚ block_itemsÚCaseÚDefaultÚappendÚ_extract_nested_caseÚstmts)Ú switch_nodeÚ new_compoundÚ last_caseÚchild©rúl/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/pycparser/ast_transforms.pyÚfix_switch_cases s3   rcCs>t|jdtjtjfƒr| |j ¡¡t|d|ƒdSdS)z€ Recursively extract consecutive Case statements that are made nested by the parser and add them to the stmts_list. érN)rrrr r r Úpopr )Ú case_nodeÚ stmts_listrrrr csþr cCsŠ t|ƒ\}}|s nq|}t|tjƒs*z|j}Wn ty#|YSwt|tjƒrd|jvr:d|jvr:|j d¡|jdurC|j |_|S)aK Atomic specifiers like _Atomic(type) are unusually structured, conferring a qualifier upon the contained type. This function fixes a decl with atomic specifiers to have a sane AST structure, by removing spurious Typename->TypeDecl pairs and attaching the _Atomic qualifier in the right place. TÚ_AtomicN) Ú_fix_atomic_specifiers_oncerrÚTypeDeclÚtypeÚAttributeErrorÚqualsr ÚdeclnameÚname)ÚdeclÚfoundÚtyprrrÚfix_atomic_specifiersls$ ý   ÿ ý  r%cCsž|}d}|j}|dur2t|tjƒrd|jvrnz |}|}|j}Wn ty-|dfYSw|dus t|tjƒs:J‚|j|_d|jjvrK|jj d¡|dfS)zƒ Performs one 'fix' round of atomic specifiers. Returns (modified_decl, found) where found is True iff a fix was made. NrFT)rrrÚTypenamerrrr )r"ÚparentÚ grandparentÚnoderrrrŒs&   üù  rN)Úrrr r%rrrrrÚs V