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Copy pathReturnStmt.java
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57 lines (44 loc) · 1.38 KB
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package jtree.nodes;
import java.util.Optional;
import java.util.function.Consumer;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.Setter;
import lombok.NonNull;
@EqualsAndHashCode
@Getter @Setter
public class ReturnStmt extends Node implements Statement {
protected @NonNull Optional<? extends Expression> expression;
public ReturnStmt() {
this(Optional.empty());
}
public ReturnStmt(Expression expression) {
this(Optional.ofNullable(expression));
}
public ReturnStmt(Optional<? extends Expression> expression) {
setExpression(expression);
}
@Override
public ReturnStmt clone() {
return new ReturnStmt(clone(getExpression()));
}
@Override
public String toCode() {
return "return" + getExpression().map(expression -> " " + expression.toCode()).orElse("") + ";";
}
public void setExpression(@NonNull Optional<? extends Expression> expression) {
this.expression = expression;
}
public final void setExpression(Expression expression) {
setExpression(Optional.ofNullable(expression));
}
public final void setExpression() {
setExpression(Optional.empty());
}
@Override
public <N extends INode> void accept(TreeVisitor visitor, Node parent, Consumer<N> replacer) {
if(visitor.visitReturnStmt(this, parent, cast(replacer))) {
getExpression().ifPresent(expr -> expr.<Expression>accept(visitor, this, this::setExpression));
}
}
}