/**
* Creates a new scope (e.g. when entering a function).
*
* @param quietly Don't fire an enterScope callback.
*/
private void pushScope(Scope s, boolean quietly) {
Preconditions.checkState(curNode != null);
compiler.setScope(s.getRootNode());
scopes.push(s);
if (NodeUtil.isValidCfgRoot(s.getRootNode())) {
cfgs.push(null);
}
if (!quietly && scopeCallback != null) {
scopeCallback.enterScope(this);
}
}
/** Creates a new scope (e.g. when entering a function). */
private void pushScope(Node node) {
Preconditions.checkState(curNode != null);
compiler.setScope(node);
scopeRoots.push(node);
if (NodeUtil.isValidCfgRoot(node)) {
cfgRoots.push(node);
cfgs.push(null);
}
if (scopeCallback != null) {
scopeCallback.enterScope(this);
}
}
/**
* Pops back to the previous scope (e.g. when leaving a function).
*
* @param quietly Don't fire the exitScope callback.
*/
private void popScope(boolean quietly) {
if (!quietly && scopeCallback != null) {
scopeCallback.exitScope(this);
}
Node scopeRoot;
if (scopeRoots.isEmpty()) {
scopeRoot = scopes.pop().getRootNode();
} else {
scopeRoot = scopeRoots.pop();
}
if (NodeUtil.isValidCfgRoot(scopeRoot)) {
cfgs.pop();
if (!cfgRoots.isEmpty()) {
Preconditions.checkState(cfgRoots.pop() == scopeRoot);
}
}
if (hasScope()) {
compiler.setScope(getScopeRoot());
}
}