Print source code AST

import java
import semmle.code.java.PrintAst
import definitions

/**
 * The source file to generate an AST from.
 */
external string selectedSourceFile();

class PrintAstConfigurationOverride extends PrintAstConfiguration {
  /**
   * Holds if the location matches the selected file in the VS Code extension and
   * the element is `fromSource`.
   */
  override predicate shouldPrint(Element e, Location l) {
    super.shouldPrint(e, l) and
    l.getFile() = getFileBySourceArchiveName(selectedSourceFile())
  }
}

Description

Outputs a representation of a file's Abstract Syntax Tree. This query is used by the VS Code extension.