view tests/agcl/examples/good/krc.h @ 6:607e3be6bad8

Adjust to the moving target called the C++ standard. Apparently nowadays it's not allowed to define an explicit copy constructor but not an assignment operator. Consequently, defining the explicit copy constructor in terms of the implicit/automatic assignment operator for general convenience no longer works. Add assignment operators. Caution: not tested with the IBM compiler, but there's no particular reason it shouldn't work.
author David A. Holland
date Mon, 30 May 2022 23:46:22 -0400
parents 13d2b8934445
children
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#ifndef KRC_H
#define KRC_H

typedef union {
  long alignment;
  char ag_vt_2[sizeof(int)];
  char ag_vt_4[sizeof(token)];
} cc_vs_type;

typedef enum {
  cc_program_token = 1, cc_statement_token, cc_translation_unit_token,
  cc_eof_token, cc_external_declaration_token, cc_function_definition_token,
  cc_declaration_token, cc_declarator_token, cc_compound_statement_token,
  cc_declaration_list_token, cc_declaration_specifiers_token,
  cc_init_declarator_list_token, cc_storage_class_specifier_token = 15,
  cc_type_specifier_token, cc_type_qualifier_token, cc_AUTO_token,
  cc_REGISTER_token, cc_STATIC_token, cc_EXTERN_token, cc_TYPEDEF_token,
  cc_VOIDkey_token, cc_CHAR_token, cc_SHORT_token, cc_INT_token,
  cc_LONG_token, cc_FLOAT_token, cc_DOUBLE_token, cc_SIGNED_token,
  cc_UNSIGNED_token, cc_struct_or_union_specifier_token,
  cc_enum_specifier_token, cc_typedef_name_token, cc_CONSTANT_token,
  cc_VOLATILE_token, cc_struct_or_union_token, cc_identifier_token,
  cc_struct_declaration_list_token = 42, cc_STRUCT_token = 44,
  cc_UNION_token, cc_struct_declaration_token, cc_init_declarator_token,
  cc_initializer_token = 50, cc_specifier_qualifier_list_token,
  cc_struct_declarator_list_token, cc_struct_declarator_token,
  cc_constant_expression_token = 56, cc_ENUM_token,
  cc_enumerator_list_token, cc_enumerator_token, cc_direct_declarator_token,
  cc_pointer_token, cc_parameter_type_list_token = 67,
  cc_identifier_list_token, cc_type_qualifier_list_token = 71,
  cc_parameter_list_token = 73, cc_ELLIPSIS_token,
  cc_parameter_declaration_token, cc_abstract_declarator_token,
  cc_assignment_expression_token = 78, cc_initializer_list_token,
  cc_type_name_token, cc_direct_abstract_declarator_token,
  cc_NAME_token = 83, cc_labeled_statement_token,
  cc_expression_statement_token, cc_selection_statement_token,
  cc_iteration_statement_token, cc_jump_statement_token, cc_CASE_token,
  cc_DEFAULT_token, cc_expression_token, cc_statement_list_token = 93,
  cc_IF_token = 95, cc_ELSE_token, cc_SWITCH_token, cc_WHILE_token,
  cc_DO_token, cc_FOR_token, cc_GOTO_token, cc_CONTINUE_token,
  cc_BREAK_token, cc_RETURN_token, cc_conditional_expression_token,
  cc_unary_expression_token, cc_assignment_operator_token,
  cc_MULTassign_token, cc_DIVassign_token, cc_MODassign_token,
  cc_PLUSassign_token, cc_MINUSassign_token, cc_LSassign_token,
  cc_RSassign_token, cc_ANDassign_token, cc_ORassign_token,
  cc_ERassign_token, cc_logical_or_expression_token,
  cc_logical_and_expression_token = 120, cc_OROR_token,
  cc_inclusive_or_expression_token, cc_ANDAND_token,
  cc_exclusive_or_expression_token, cc_and_expression_token = 126,
  cc_equality_expression_token = 128, cc_relational_expression_token = 130,
  cc_EQ_token, cc_NE_token, cc_shift_expression_token, cc_LE_token = 136,
  cc_GE_token, cc_additive_expression_token, cc_LS_token, cc_RS_token,
  cc_multiplicative_expression_token, cc_cast_expression_token = 144,
  cc_postfix_expression_token = 147, cc_ICR_token, cc_DECR_token,
  cc_unary_operator_token, cc_SIZEOF_token,
  cc_primary_expression_token = 154, cc_argument_expression_list_token,
  cc_ARROW_token = 158, cc_constant_token, cc_STRINGliteral_token,
  cc_HEXconstant_token, cc_OCTconstant_token, cc_DECconstant_token,
  cc_FLOATconstant_token, cc_CHARACTERconstant_token
} cc_token_type;

typedef struct cc_pcb_struct{
  cc_token_type token_number, reduction_token, error_frame_token;
  int input_code;
  token input_value;
  int line, column;
  int ssx, sn, error_frame_ssx;
  int drt, dssx, dsn;
  int ss[128];
  cc_vs_type vs[128];
  int ag_ap;
  const char *error_message;
  char read_flag;
  char exit_flag;
  int bts[128], btsx;
  char ag_msg[82];
  const  int *ag_dtl;
  int ag_dsn;
} cc_pcb_type;

#ifndef PRULE_CONTEXT
#define PRULE_CONTEXT(pcb)  (&((pcb).cs[(pcb).ssx]))
#define PERROR_CONTEXT(pcb) ((pcb).cs[(pcb).error_frame_ssx])
#define PCONTEXT(pcb)       ((pcb).cs[(pcb).ssx])
#endif

#ifndef AG_RUNNING_CODE
/* PCB.exit_flag values */
#define AG_RUNNING_CODE         0
#define AG_SUCCESS_CODE         1
#define AG_SYNTAX_ERROR_CODE    2
#define AG_REDUCTION_ERROR_CODE 3
#define AG_STACK_ERROR_CODE     4
#define AG_SEMANTIC_ERROR_CODE  5
#endif

extern cc_pcb_type cc_pcb;
void init_cc(void);
void cc(void);
#endif