view tests/agcl/oldagsrc/good/bciastp.h @ 15:f5acaf0c8a29

Don't cast through "volatile int". Causes a gcc warning nowadays. XXX: should put something else back here to frighten the optimizer
author David A. Holland
date Tue, 31 May 2022 01:00:55 -0400
parents 13d2b8934445
children
line wrap: on
line source

#ifndef BCIASTP_H
#define BCIASTP_H

#ifndef AG_OBJECT_WRAPPER_DEFINED
#define AG_OBJECT_WRAPPER_DEFINED

#ifndef AG_PLACEMENT_DELETE_REQUIRED
#if _MSC_VER >= 1200 || __INTEL_COMPILER
#define AG_PLACEMENT_DELETE_REQUIRED 1
#endif
#endif

template <class Object>
class AgObjectWrapper {
  Object object;
public:
  void operator delete(void *) {}
  void *operator new(size_t, void *p) { return p;}
#if AG_PLACEMENT_DELETE_REQUIRED
  void operator delete(void *, void *) { }
#endif
  AgObjectWrapper(const Object &o) : object(o) {}
  ~AgObjectWrapper() {}
  operator Object &() {return object;}
};

#endif

typedef union {
  double alignment;
  char ag_vt_2[sizeof(int)];
  char ag_vt_4[sizeof(AgObjectWrapper<AgStack<Statement *> >)];
  char ag_vt_5[sizeof(AgObjectWrapper<AgString >)];
  char ag_vt_6[sizeof(Program *)];
  char ag_vt_7[sizeof(Statement *)];
  char ag_vt_8[sizeof(Expression *)];
  char ag_vt_9[sizeof(double)];
} astParse_vs_type;

typedef enum {
  astParse_white_space_token = 1, astParse_input_string_token = 4,
  astParse_statements_token, astParse_eof_token, astParse_statement_token,
  astParse_closed_statement_token, astParse_open_statement_token,
  astParse_expression_token = 12, astParse_simple_statement_token = 18,
  astParse_assignment_expression_token = 22,
  astParse_conditional_expression_token = 24,
  astParse_logical_or_expression_token = 30,
  astParse_logical_and_expression_token = 33,
  astParse_equality_expression_token = 35,
  astParse_relational_expression_token = 37,
  astParse_additive_expression_token = 40,
  astParse_multiplicative_expression_token = 45,
  astParse_unary_expression_token = 48, astParse_factor_token = 51,
  astParse_primary_token = 53, astParse_simple_real_token = 69,
  astParse_exponent_token = 72, astParse_integer_part_token,
  astParse_fraction_part_token = 75, astParse_digit_token = 77,
  astParse_letter_token, astParse_name_token = 97,
  astParse_real_token = 118
} astParse_token_type;

typedef struct astParse_pcb_struct{
  astParse_token_type token_number, reduction_token, error_frame_token;
  int input_code;
  int input_value;
  int line, column;
  int ssx, sn, error_frame_ssx;
  int drt, dssx, dsn;
  int ss[128];
  astParse_vs_type vs[128];
  int ag_ap;
  const char *error_message;
  char read_flag;
  char exit_flag;
  int bts[128], btsx;
  unsigned char * pointer;
  unsigned char * la_ptr;
  const unsigned char *key_sp;
  int save_index, key_state;
  char ag_msg[82];
/*  Line -, bciastp.syn */
    // Maps symbol names to variables
    // AgSharedStringDictionary symbolDictionary;
    AbstractSyntaxTree *ast;

    // Temporary space to accumulate identifiers while parsing
    AgString charStack;
  } astParse_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
void init_astParse(astParse_pcb_type *);
void astParse(astParse_pcb_type *);

Program * astParse_value(astParse_pcb_type *);
#endif