CSCI-258-Labs/344/arro/Java/AssignStmt.java

//AssignStmt:top//
//AssignStmt:import//
import java.util.*;

// <stmt>AssignStmt ::= <VAR> <ASSIGN> <exp> <SEMI>
public class AssignStmt extends Stmt /*AssignStmt:class*/ {

    public static final String $className = "AssignStmt";
    public static final String $ruleString =
        "<stmt>AssignStmt ::= <VAR> <ASSIGN> <exp> <SEMI>";

    public Token var;
    public Token assign;
    public Exp exp;
    public Token semi;

    public AssignStmt(Token var, Token assign, Exp exp, Token semi) {
//AssignStmt:init//
        this.var = var;
        this.assign = assign;
        this.exp = exp;
        this.semi = semi;
    }

    public static AssignStmt parse(Scan scn$, Trace trace$) {
        if (trace$ != null)
            trace$ = trace$.nonterm("<stmt>AssignStmt", scn$.lno);
        Token var = scn$.match(Token.Match.VAR, trace$);
        Token assign = scn$.match(Token.Match.ASSIGN, trace$);
        Exp exp = Exp.parse(scn$, trace$);
        Token semi = scn$.match(Token.Match.SEMI, trace$);
        return new AssignStmt(var, assign, exp, semi);
    }

    public void execute() { Program.hshmap.put(var.toString(), exp.eval()); }

//AssignStmt//
}