ref: f693fc0846b9cd1727a65994793c460bc0387e8f
dir: /cc1/cc1.h/
#define INPUTSIZ LINESIZ
#ifndef PREFIX
#define PREFIX "/usr/"
#endif
#define GLOBALCTX 0
/*
* Definition of structures
*/
typedef struct type Type;
typedef struct symbol Symbol;
typedef struct caselist Caselist;
typedef struct node Node;
typedef struct input Input;
/*
* TODO: Some of the data stored in type is shared with
* cc2, so it should be stored in a table shared
* between both programs, and dependant of the target.
*/
struct type {
unsigned char op; /* type builder operator */
char ns; /* namespace for struct members */
short id; /* type id, used in dcls */
char letter; /* letter of the type */
bool defined : 1; /* type defined */
bool sign : 1; /* signess of the type */
bool printed : 1; /* the type already was printed */
size_t size; /* sizeof the type */
size_t align; /* align of the type */
Type *type; /* base type */
Symbol *tag; /* symbol of the strug tag */
Type *next; /* next element in the hash */
union {
Type **pars; /* Function type parameters */
Symbol **fields; /* fields of aggregate type */
} p;
union {
unsigned char rank; /* convertion rank */
short elem; /* number of type parameters */
} n;
};
struct symbol {
char *name;
Type *type;
unsigned short id;
unsigned char ctx;
char ns;
unsigned char token;
short flags;
union {
TINT i;
TUINT u;
TFLOAT f;
char *s;
unsigned char token;
Symbol **pars;
} u;
struct symbol *next;
struct symbol *hash;
};
struct node {
unsigned char op;
Type *type;
Symbol *sym;
bool lvalue : 1;
bool symbol: 1;
bool constant : 1;
struct node *left, *right;
};
struct scase {
Symbol *label;
Node *expr;
struct scase *next;
};
struct caselist {
short nr;
Symbol *deflabel;
Symbol *ltable;
Symbol *lbreak;
Node *expr;
struct scase *head;
};
struct yystype {
Symbol *sym;
unsigned char token;
};
struct input {
char *fname;
FILE *fp;
char *line, *begin, *p;
struct input *next;
unsigned short nline;
};
/*
* Definition of enumerations
*/
/* recovery points */
enum {
END_DECL,
END_LDECL,
END_COMP,
END_COND
};
/* type constructors */
enum {
FTN = 1,
PTR,
ARY
};
/* namespaces */
enum {
NS_IDEN = 1,
NS_TAG,
NS_LABEL,
NS_CPP,
NS_KEYWORD,
NS_CPPCLAUSES,
NS_STRUCTS
};
/* symbol flags */
enum {
ISAUTO = 1,
ISREGISTER = 2,
ISDECLARED = 4,
ISFIELD = 8,
ISEXTERN = 16,
ISUSED = 32,
ISCONSTANT = 64,
ISGLOBAL = 128,
ISPRIVATE = 256,
ISLOCAL = 512,
ISEMITTED = 1024,
ISDEFINED = 2048,
ISSTRING = 4096
};
/* lexer mode, compiler or preprocessor directive */
enum {
CCMODE,
CPPMODE
};
/* input tokens */
enum tokens {
TQUALIFIER = 128,
TYPE,
IDEN,
SCLASS,
CONSTANT,
SIZEOF,
INDIR,
INC,
DEC,
SHL,
SHR,
LE,
GE,
EQ,
NE,
AND,
OR,
MUL_EQ,
DIV_EQ,
MOD_EQ,
ADD_EQ,
SUB_EQ,
AND_EQ,
XOR_EQ,
OR_EQ,
SHL_EQ,
SHR_EQ,
ELLIPSIS,
CASE,
DEFAULT,
IF,
ELSE,
SWITCH,
WHILE,
DO,
FOR,
GOTO,
VOID,
FLOAT,
INT,
BOOL,
STRUCT,
UNION,
CHAR,
DOUBLE,
SHORT,
LONG,
LLONG,
COMPLEX,
CONST,
VOLATILE,
RESTRICT,
TYPEDEF,
EXTERN,
STATIC,
AUTO,
REGISTER,
ENUM,
TYPEIDEN,
UNSIGNED,
SIGNED,
CONTINUE,
BREAK,
RETURN,
DEFINE,
INCLUDE,
LINE,
PRAGMA,
ERROR,
IFDEF,
ELIF,
IFNDEF,
UNDEF,
ENDIF,
EOFTOK
};
/* operations */
enum op {
OPTR,
OADD,
OMUL,
OSUB,
OINC,
ODEC,
ODIV,
OMOD,
OSHL,
OSHR,
OBAND,
OBXOR,
OBOR,
OASSIGN,
OA_MUL,
OA_DIV,
OA_MOD,
OA_ADD,
OA_SUB,
OA_SHL,
OA_SHR,
OA_AND,
OA_XOR,
OA_OR,
OADDR,
ONEG,
OCPL,
OEXC,
OCOMMA,
OCAST,
OSYM,
OASK,
OCOLON,
OFIELD,
OLABEL,
ODEFAULT,
OCASE,
OJUMP,
OBRANCH,
OEXPR,
OEFUN,
OELOOP,
OBLOOP,
OFUN,
OPAR,
OCALL,
ORET,
ODECL,
OSWITCH,
OSWITCHT,
OAND,
OOR,
OEQ,
ONE,
OLT,
OGE,
OLE,
OGT
};
/* error.c */
extern void error(char *fmt, ...);
extern void warn(char *fmt, ...);
extern void unexpected(void);
extern void errorp(char *fmt, ...);
extern void cpperror(char *fmt, ...);
/* types.c */
extern bool eqtype(Type *tp1, Type *tp2);
extern Type *ctype(unsigned type, unsigned sign, unsigned size);
extern Type *mktype(Type *tp, unsigned op, short nelem, Type *data[]);
extern Type *duptype(Type *base);
/* symbol.c */
extern void dumpstab(char *msg);
extern Symbol *lookup(int ns, char *name);
extern Symbol *nextsym(Symbol *sym, int ns);
extern Symbol *install(int ns, Symbol *sym);
extern Symbol *newsym(int ns);
extern void pushctx(void), popctx(void);
extern void ikeywords(void);
extern void delmacro(Symbol *sym);
extern Symbol *newlabel(void);
/* stmt.c */
extern void compound(Symbol *lbreak, Symbol *lcont, Caselist *lswitch);
/* decl.c */
extern Type *typename(void);
extern void decl(void);
/* lex.c */
extern char ahead(void);
extern unsigned next(void);
extern bool moreinput(void);
extern void expect(unsigned tok);
extern void discard(void);
extern bool addinput(char *fname);
extern void setsafe(int type);
extern void ilex(char *fname);
#define accept(t) ((yytoken == (t)) ? next() : 0)
/* code.c */
extern void emit(unsigned, void *);
extern Node *node(unsigned op, Type *tp, Node *left, Node *rigth);
extern Node *varnode(Symbol *sym);
extern Node *constnode(Symbol *sym);
extern Node *sizeofnode(Type *tp);
extern void freetree(Node *np);
#define BTYPE(np) ((np)->type->op)
/* expr.c */
extern Node *expr(void), *negate(Node *np), *constexpr(void);
extern Node *convert(Node *np, Type *tp1, char iscast);
extern Node *eval(Node *np), *iconstexpr(void), *condition(void);
extern Node *exp2cond(Node *np, char neg);
/* cpp.c */
extern void icpp(void);
extern bool cpp(void);
extern bool expand(char *begin, Symbol *sym);
/*
* Definition of global variables
*/
extern struct yystype yylval;
extern char yytext[];
extern unsigned yytoken;
extern unsigned short yylen;
extern int cppoff, disexpand;
extern unsigned cppctx;
extern Input *input;
extern int lexmode, namespace;
extern unsigned curctx;
extern Symbol *curfun, *zero, *one;
extern Type *voidtype, *pvoidtype, *booltype,
*uchartype, *chartype,
*uinttype, *inttype, *sizettype,
*ushortype, *shortype,
*longtype, *ulongtype,
*ullongtype, *llongtype,
*floattype, *doubletype, *ldoubletype;