Sha256: c9a768c90e72f615dc5be863c0cde66bba9675e0a455df77f0bf3e7e435250fc
Contents?: true
Size: 1.58 KB
Versions: 135
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Stored size: 1.58 KB
Contents
/**
* Copyright 2005-2007 Xue Yong Zhi
* Distributed under the BSD License
*/
package com.xruby.compiler.codegen;
import java.util.Stack;
import org.objectweb.asm.Label;
class LabelManager {
private class LabelGroup {
public Label break_ = new Label();
public Label next_ = new Label();
public Label redo_ = new Label();
public Label x_ = new Label();//general purpose labelzz
}
private Stack<LabelGroup> labels_ = new Stack<LabelGroup>();
public Label getCurrentBreak() {
return labels_.peek().break_;
}
public Label getCurrentNext() {
return labels_.peek().next_;
}
public Label getCurrentRedo() {
return labels_.peek().redo_;
}
public Label getCurrentX() {
return labels_.peek().x_;
}
public boolean isAtTopLevel() {
return labels_.size() == 1;
}
public void openNewScope() {
labels_.add(new LabelGroup());
}
public void closeCurrentScope() {
labels_.pop();
}
}
class EnsureLabelManager {
private class LabelGroup {
public Label retry_ = new Label();
public Label finally_ = null;
}
private Stack<LabelGroup> labels_ = new Stack<LabelGroup>();
public Label getCurrentRetry() {
return labels_.peek().retry_;
}
public Label getCurrentFinally() {
if (labels_.empty()) {
return null;//top scope
}
return labels_.peek().finally_;
}
public void setCurrentFinally(Label l) {
labels_.peek().finally_ = l;
}
public void openNewScope() {
labels_.push(new LabelGroup());
}
public void closeCurrentScope() {
labels_.pop();
}
}
Version data entries
135 entries across 135 versions & 2 rubygems