com.github.sommeri.less4j.utils.debugonly.DebugUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of less4j Show documentation

Less language is an extension of css and less4j compiles it into regular css. It adds several dynamic features into css: variables, expressions, nested rules. Less4j is a port. The original compiler was written in JavaScript and is called less.js. The less language is mostly defined in less.js documentation/issues and by what less.js actually do. Links to less.js: * home page: http://lesscss.org/ * source code & issues: https://github.com/cloudhead/less.js

There is a newer version: 1.17.2

Show newest version

package com.github.sommeri.less4j.utils.debugonly;

import java.util.HashSet;
import java.util.Set;

import com.github.sommeri.less4j.core.ast.ASTCssNode;
import com.github.sommeri.less4j.core.ast.Expression;
import com.github.sommeri.less4j.core.compiler.scopes.IScope;

// marked deprecated so I get a warning if it is referenced somewhere
@Deprecated
public class DebugUtils {

  private Set duplicates = new HashSet();
  
  public DebugUtils() {
  }

  /** 
   * Variable name should contain @ too e.g. "@width"
   */
  public void scopeTest(IScope scope, Object id, String variableName) {
    try {
      System.out.println("--- Scope Test: " +id+ " Scope name: " + scope);
      Expression value = scope.getValue("@width");
      
      String text = variableName + ": " + value;
      if (value==null) {
        text +=" !";
      }
      System.out.println(text);
    } catch (Throwable th) {
      th.printStackTrace();
    }
  }

  public void solveParentChildRelationShips(ASTCssNode node) {
    for (ASTCssNode kid : node.getChilds()) {
      kid.setParent(node);
      solveParentChildRelationShips(kid);
    }
  }

  public void checkParentChildRelationshipsSanity(ASTCssNode node, String prefix) {
    duplicates = new HashSet();
    doCheckParentChildRelationshipsSanity(node, prefix);
  }

  private void doCheckParentChildRelationshipsSanity(ASTCssNode node, String prefix) {
    for (ASTCssNode kid : node.getChilds()) {
      if (duplicates.contains(kid))
        System.out.println("duplicate " + prefix + kid);
      
      duplicates.add(kid);
      
      if (kid.getParent() != node)
        System.out.println("parent " + prefix + kid);

      doCheckParentChildRelationshipsSanity(kid, prefix);
    }
  }


}