From 6172cc802ea408e9050ec6e3b3f5b6959b07c87d Mon Sep 17 00:00:00 2001 From: Teddy Date: Mon, 24 Mar 2014 23:24:59 +0800 Subject: fancy AST output --- cibic.y | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) (limited to 'cibic.y') diff --git a/cibic.y b/cibic.y index d054c56..a4f7eb2 100644 --- a/cibic.y +++ b/cibic.y @@ -24,7 +24,7 @@ %start program %% program - : prog_list { ast_root = cnode_list_wrap(PROG, $1); } + : prog_list { ast_root = cnode_create_ast(cnode_list_wrap(PROG, $1)); } prog_list : declaration @@ -33,7 +33,9 @@ prog_list | prog_list function_definition { $$ = cnode_list_append($1, $2); } declaration - : type_specifier ';' { $$ = cnode_create_decl($1, cnode_create_nop()); } + : type_specifier ';' { + $$ = cnode_create_decl($1, cnode_list_wrap(INIT_DECLRS, cnode_create_nop())); + } | type_specifier init_declarators ';' { $$ = cnode_create_decl($1, cnode_list_wrap(INIT_DECLRS, $2)); } @@ -43,7 +45,7 @@ function_definition $$ = cnode_create_func($1, $2, cnode_list_wrap(PARAMS, $4), $6); } | type_specifier plain_declarator '(' ')' compound_statement { - $$ = cnode_create_func($1, $2, cnode_create_nop(), $5); + $$ = cnode_create_func($1, $2, cnode_list_wrap(PARAMS, cnode_create_nop()), $5); } parameters @@ -94,8 +96,12 @@ plain_declaration : type_specifier declarator { $$ = cnode_create_plain_decl($1, $2); } declarator - : plain_declarator '(' ')' { $$ = cnode_create_declr(DECLR_FUNC, 2, $1, cnode_create_nop());} - | plain_declarator '(' parameters ')' { $$ = cnode_create_declr(DECLR_FUNC, 2, $1, $3);} + : plain_declarator '(' ')' { + $$ = cnode_create_declr(DECLR_FUNC, 2, $1, cnode_list_wrap(PARAMS, cnode_create_nop())); + } + | plain_declarator '(' parameters ')' { + $$ = cnode_create_declr(DECLR_FUNC, 2, $1, cnode_list_wrap(PARAMS, $3)); + } | declarator_array declarator_array @@ -293,9 +299,12 @@ postfix_expression postfix : '[' expression ']' { $$ = cnode_create_exp(POSTFIX_ARR, 1, $2); } - | '(' arguments ')' { $$ = cnode_create_exp(POSTFIX_CALL, 1, - cnode_list_wrap(ARGS, $2)); } - | '(' ')' { $$ = cnode_create_exp(POSTFIX_CALL, 1, cnode_create_nop()); } + | '(' arguments ')' { + $$ = cnode_create_exp(POSTFIX_CALL, 1, cnode_list_wrap(ARGS, $2)); + } + | '(' ')' { + $$ = cnode_create_exp(POSTFIX_CALL, 1, cnode_list_wrap(cnode_create_nop())); + } | '.' identifier { $$ = cnode_create_exp(POSTFIX_DOT, 1, $2); } | OPT_PTR identifier { $$ = cnode_create_exp(POSTFIX_PTR, 1, $2); } | OPT_INC { $$ = cnode_create_exp(OPT_INC, 0); } @@ -327,7 +336,7 @@ void test_ast() { yyparse(); cnode_init(); if (ast_root) - cnode_debug_print(ast_root); + cnode_debug_print(ast_root, 1); else fprintf(stderr, "Syntax Error\n"); } -- cgit v1.2.3