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Copy pathMultiInfixExpr.java
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54 lines (43 loc) · 1.17 KB
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package cwp.ast;
import cwp.lexer.Token;
import java.util.ArrayList;
public class MultiInfixExpr extends Expr {
public ArrayList<Expr> exprs;
public Token opToken;
public MultiInfixExpr(Token initTok, Token opToken, Expr expr) {
super(initTok);
this.opToken = opToken;
this.exprs = new ArrayList<Expr>();
this.exprs.add(expr);
}
public void add(Expr e) {
this.exprs.add(e);
}
public Expr getExpr() {
if (exprs.size() == 1) {
return exprs.get(0);
} else {
return this;
}
}
@Override
public String toString() {
return "MultiInfixExpr: " + initTok.toString();
}
public static String toOp(String s) {
if (s.equals("|>")) return "->";
if (s.equals("|>>")) return "->>";
if (s.equals("!=")) return "not=";
return s;
}
@Override
public String gen() {
StringBuilder sb = new StringBuilder();
sb.append("(").append(toOp(opToken.str));
for (Expr expr : exprs) {
sb.append(" ").append(expr.gen());
}
sb.append(")");
return sb.toString();
}
}