org.sonar.python.semantic.v2.ScopeVisitor Maven / Gradle / Ivy
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/*
* SonarQube Python Plugin
* Copyright (C) 2011-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
package org.sonar.python.semantic.v2;
import java.util.Deque;
import java.util.LinkedList;
import java.util.Map;
import javax.annotation.Nullable;
import org.sonar.plugins.python.api.tree.BaseTreeVisitor;
import org.sonar.plugins.python.api.tree.Tree;
public class ScopeVisitor extends BaseTreeVisitor {
private final Map scopesByRootTree;
private final Deque scopeRootTrees;
public ScopeVisitor(Map scopesByRootTree) {
this.scopesByRootTree = scopesByRootTree;
this.scopeRootTrees = new LinkedList<>();
}
Tree currentScopeRootTree() {
return scopeRootTrees.peek();
}
void enterScope(Tree tree) {
scopeRootTrees.push(tree);
}
Tree leaveScope() {
return scopeRootTrees.pop();
}
ScopeV2 currentScope() {
return scopesByRootTree.get(currentScopeRootTree());
}
void createScope(Tree tree, @Nullable ScopeV2 parent) {
scopesByRootTree.put(tree, new ScopeV2(parent, tree));
}
void createAndEnterScope(Tree tree, @Nullable ScopeV2 parent) {
createScope(tree, parent);
enterScope(tree);
}
}
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