o 'òvi ã@s®ddlmZmZmZmZddlmZdejdejfdd„Zdej ej Bd eej dd fd d „Z d ej ejBdej ejBfdd„Zd ej ejBdeej ejBeffdd„Zd S)é)ÚAnyÚListÚTupleÚcasté)Úc_astÚ switch_nodeÚreturncCsªt|tjƒsJ‚t|jtjƒs|St g|jj¡}d}|jjp gD].}t|tjtjfƒr>|j  |¡t ||jƒ|jd}q!|durI|j  |¡q!|j   |¡q!||_|S)a3The '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)rÚ new_compoundÚ last_caseÚchild©rúW/home/air/biblejyuku/back/venv/lib/python3.10/site-packages/pycparser/ast_transforms.pyÚfix_switch_casess3   rÚ case_nodeÚ stmts_listNcCsDt|jdtjtjfƒr |j ¡}| |¡ttt |ƒ|ƒdSdS)z{Recursively extract consecutive Case statements that are made nested by the parser and add them to the stmts_list. rN) r rrrrÚpoprrrr)rrÚnestedrrrres   ýrÚdeclcCsŠ t|ƒ\}}|s nq|}t|tjƒs*z|j}Wn ty#|YSwt|tjƒrd|jvr:d|jvr:|j d¡|jdurC|j |_|S)a: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_oncer rÚTypeDeclÚtypeÚAttributeErrorÚqualsrÚdeclnameÚname)r ÚfoundÚtyprrrÚfix_atomic_specifiersqs$ ý   ÿ ý  r+cCs°|}d}|j}|dur2t|tjƒrd|jvrnz |}|}|j}Wn ty-|dfYSw|dus t|tjƒs:J‚|dus@J‚|jtt|ƒ_d|jjvrT|jj  d¡|dfS)z~Performs one 'fix' round of atomic specifiers. Returns (modified_decl, found) where found is True iff a fix was made. Nr!FT) r$r rÚTypenamer&r%r#rrr)r ÚparentÚ grandparentÚnoderrrr"“s(   üù  r")ÚtypingrrrrÚrr rrrÚNoderÚDeclÚTypedefr+Úboolr"rrrrÚs( V ÿÿ þ ÿ  þ" ÿþ