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cc65/src/cc65/expr.h

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/*
* expr.h
*
* Ullrich von Bassewitz, 21.06.1998
*/
#ifndef EXPR_H
#define EXPR_H
/* cc65 */
#include "datatype.h"
#include "exprdesc.h"
/*****************************************************************************/
/* code */
/*****************************************************************************/
void ExprWithCheck (void (*Func) (ExprDesc*), ExprDesc *Expr);
/* Call an expression function with checks. */
void PushAddr (const ExprDesc* Expr);
/* If the expression contains an address that was somehow evaluated,
* push this address on the stack. This is a helper function for all
* sorts of implicit or explicit assignment functions where the lvalue
* must be saved if it's not constant, before evaluating the rhs.
*/
void Store (ExprDesc* Expr, const type* StoreType);
/* Store the primary register into the location denoted by lval. If StoreType
* is given, use this type when storing instead of lval->Type. If StoreType
* is NULL, use lval->Type instead.
*/
int evalexpr (unsigned flags, void (*Func) (ExprDesc*), ExprDesc* Expr);
/* Will evaluate an expression via the given function. If the result is a
* constant, 0 is returned and the value is put in the lval struct. If the
* result is not constant, LoadExpr is called to bring the value into the
* primary register and 1 is returned.
*/
void Expression0 (ExprDesc* Expr);
/* Evaluate an expression via hie0 and put the result into the primary register */
void ConstExpr (void (*Func) (ExprDesc*), ExprDesc* Expr);
/* Will evaluate an expression via the given function. If the result is not
* a constant of some sort, a diagnostic will be printed, and the value is
* replaced by a constant one to make sure there are no internal errors that
* result from this input error.
*/
void BoolExpr (void (*Func) (ExprDesc*), ExprDesc* Expr);
/* Will evaluate an expression via the given function. If the result is not
* something that may be evaluated in a boolean context, a diagnostic will be
* printed, and the value is replaced by a constant one to make sure there
* are no internal errors that result from this input error.
*/
void ConstAbsIntExpr (void (*Func) (ExprDesc*), ExprDesc* Expr);
/* Will evaluate an expression via the given function. If the result is not
* a constant numeric integer value, a diagnostic will be printed, and the
* value is replaced by a constant one to make sure there are no internal
* errors that result from this input error.
*/
void hie10 (ExprDesc* lval);
/* Handle ++, --, !, unary - etc. */
void hie8 (ExprDesc* Expr);
/* Process + and - binary operators. */
void hie1 (ExprDesc* lval);
/* Parse first level of expression hierarchy. */
void hie0 (ExprDesc* Expr);
/* Parse comma operator. */
/* End of expr.h */
#endif