jack-compiler/compiler-scopes.h

52 lines
1.1 KiB
C

#ifndef COMPILER_SCOPES_H
#define COMPILER_SCOPES_H
#include "parser.h"
/* compiler-scopes
* Tools for dealing with scopes.
*
* They can be used to create, expand and stack scopes, as well as to enforce
* certain semantic rules. */
// Data types
typedef struct scope {
SUBDEC* subroutines;
CLASSVARDEC* classvardecs;
VARDEC* vardecs;
CLASS* classes;
struct scope* previous;
} SCOPE;
typedef enum {
subdec, classvardec, vardec, class
} OBJTYPE;
typedef struct object {
OBJTYPE type;
union {
SUBDEC* subdec;
CLASSVARDEC* classvardec;
VARDEC* vardec;
CLASS* class;
};
DEBUGINFO* (*getdebug)(struct object*);
} OBJ;
// Group adding
void addclassvardecs(SCOPE* s, CLASSVARDEC* vs);
void addvardecs(SCOPE* s, VARDEC* vs);
void addsubdecs(SCOPE* s, SUBDEC* ss);
void addclasses(SCOPE* s, CLASS* c);
// Scope handling
SCOPE* mkscope(SCOPE* prev);
// Single type getters
SUBDEC* getsubdec(SCOPE* s, char* name);
SUBDEC* getsubdecfromcall(SCOPE* s, SUBROUTCALL* call);
CLASS* getclass(SCOPE* s, char* name);
// Generic getters
OBJ* getbyname(SCOPE* s, char* name);
#endif