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#ifndef _STATEMENT
#define _STATEMENT
 
// ============================================================================
//        __
//   \\__/ o\    (C) 2012-2017  Robert Finch, Waterloo
//    \  __ /    All rights reserved.
//     \/_//     robfinch<remove>@finitron.ca
//       ||
//
// C64 - 'C' derived language compiler
//  - 64 bit CPU
//
// This source file is free software: you can redistribute it and/or modify 
// it under the terms of the GNU Lesser General Public License as published 
// by the Free Software Foundation, either version 3 of the License, or     
// (at your option) any later version.                                      
//                                                                          
// This source file is distributed in the hope that it will be useful,      
// but WITHOUT ANY WARRANTY; without even the implied warranty of           
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            
// GNU General Public License for more details.                             
//                                                                          
// You should have received a copy of the GNU General Public License        
// along with this program.  If not, see <http://www.gnu.org/licenses/>.    
//                                                                          
// ============================================================================
//
enum e_stmt {
		st_empty, st_funcbody,
        st_expr, st_compound, st_while, 
		st_until, st_forever, st_firstcall, st_asm,
		st_dountil, st_doloop,
		st_try, st_catch, st_throw, st_critical, st_spinlock, st_spinunlock,
		st_for,
		st_do, st_if, st_switch, st_default,
        st_case, st_goto, st_break, st_continue, st_label,
        st_return, st_vortex, st_intoff, st_inton, st_stop, st_check };
 
class Statement {
public:
	__int8 stype;
	Statement *outer;
	Statement *next;
	Statement *prolog;
	Statement *epilog;
	bool nkd;
	int predreg;		// assigned predicate register
	ENODE *exp;         // condition or expression
	ENODE *initExpr;    // initialization expression - for loops
	ENODE *incrExpr;    // increment expression - for loops
	Statement *s1, *s2; // internal statements
	int num;			// resulting expression type (hash code for throw)
	int64_t *label;     // label number for goto
	int64_t *casevals;	// case values
	TABLE ssyms;		// local symbols associated with statement
	char *fcname;       // firstcall block var name
	char *lptr;
	unsigned int prediction : 2;	// static prediction for if statements
 
	static Statement *ParseStop();
	static Statement *ParseCompound();
	static Statement *ParseDo();
	static Statement *ParseFor();
	static Statement *ParseForever();
	static Statement *ParseFirstcall();
	static Statement *ParseIf();
	static Statement *ParseCatch();
	static Statement *ParseCase();
	int CheckForDuplicateCases();
	static Statement *ParseThrow();
	static Statement *ParseContinue();
	static Statement *ParseAsm();
	static Statement *ParseTry();
	static Statement *ParseExpression();
	static Statement *ParseLabel();
	static Statement *ParseWhile();
	static Statement *ParseUntil();
	static Statement *ParseGoto();
	static Statement *ParseReturn();
	static Statement *ParseBreak();
	static Statement *ParseSwitch(bool);
	static Statement *Parse(bool);
 
	void GenMixedSource();
	void GenerateStop();
	void GenerateAsm();
	void GenerateFirstcall();
	void GenerateWhile();
	void GenerateUntil();
	void GenerateFor();
	void GenerateForever();
	void GenerateIf();
	void GenerateDo();
	void GenerateDoUntil();
	void GenerateCompound();
	void GenerateCase();
	void GenerateTry();
	void GenerateThrow();
	void GenerateCheck();
	void GenerateFuncBody();
	void GenerateSwitch();
	void GenerateLinearSwitch();
	void GenerateTabularSwitch();
	void Generate();
};
 
#endif