+2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Encapsulate code properties and related functionality for the various
+ destructors, printers, and actions into a code_props structure and
+ interface.
+ * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
+ consistently initialize const structs that have an empty location field.
+ * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
+ to ensure consistency.
+ * src/output.c (symbol_destructors_output, symbol_printers_output):
+ Replace with...
+ (symbol_code_props_output): ... this to eliminate duplicate code.
+ (output_skeleton): Update to use symbol_code_props_output.
+ * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
+ Update all uses of translate_* functions to use the new code_props
+ interface and to use gram_scanner_last_string_free and
+ code_scanner_last_string_free where possible.
+ (grammar_declaration): symbol_list_destructor_set and
+ symbol_list_printer_set now perform the translation, so don't do it
+ here. Use gram_scanner_last_string_free where possible.
+ * src/reader.c: Update to use code_props interface for destructors and
+ rule actions.
+ * src/scan-code.h (code_props): New structure.
+ (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
+ function, macro, and const global variable for initializing a
+ code_props with no code.
+ (code_props_plain_init, code_props_symbol_action_init,
+ code_props_rule_action_init, code_props_translate_code,
+ code_props_code_get, code_props_location_get,
+ code_props_is_value_used): The rest of the new code_props interface.
+ (translate_rule_action, translate_symbol_action, translate_code):
+ Remove as these are now just special cases within
+ code_props_translate_code, which is switched on the code_props kind.
+ (code_scanner_last_string_free): New function similar to
+ gram_scanner_last_string_free.
+ * src/scan-code.l: Implement the new interface.
+ (last_string): New static global similar to the one in scan-gram.l.
+ (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
+ code_props since Bison will one day use this information for
+ destructors and printers.
+ (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
+ (handle_action_dollar): Update to use the code_props interface of rule
+ actions. Use symbol_list_n_get and set is_value_used directly since
+ symbol_list_n_used_set is removed.
+ * src/symlist.h, src/symlist.c (symbol_list): Replace action,
+ action_location, and used members with a code_props member, and update
+ all uses.
+ (symbol_list_n_used_set): Remove since it would need to break the
+ encapsulation of code_props.
+ (symbol_list_destructor_set, symbol_list_printer_set): Perform code
+ translation here rather than depending on the caller to do so.
+ * src/symtab.h (symbol, semantic_type): Remove destructor_location and
+ printer_location members and change the type of the destructor and
+ printer members to code_props.
+ (symbol_destructor_location_get, symbol_printer_location_get): Remove
+ unneeded.
+ (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
+ symbol_printer_get, semantic_type_destructor_set,
+ semantic_type_printer_set, default_tagged_destructor_set,
+ default_tagless_destructor_set, default_tagged_printer_set,
+ default_tagless_printer_set): Use code_props in arguments and return
+ types in place of const char * and location.
+ * src/symtab.c: Update implementation for interface and struct changes.
+ (default_tagged_destructor_location,
+ default_tagless_destructor_location, default_tagged_printer_location,
+ default_tagless_printer_location): Remove since we...
+ (default_tagged_destructor, default_tagless_destructor,
+ default_tagged_printer, default_tagless_printer): ... change the type
+ of these to code_props.
+ (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
+ code_props members.
+ (symbol_print): Use SYMBOL_CODE_PRINT.
+
+ * src/scan-gram.h (gram_last_string): Remove declaration.
+ * src/scan-gram.l (last_string): Declare it static.
+
2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
* tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
projects / bison.git / blobdiff