Class FullIdent

java.lang.Object
com.puppycrawl.tools.checkstyle.api.FullIdent
public final class FullIdent extends Object
Represents a full identifier, including dots, with associated position information.

Identifiers such as java.util.HashMap are spread across multiple AST nodes in the syntax tree (three IDENT nodes, two DOT nodes). A FullIdent represents the whole String (excluding any intermediate whitespace), which is often easier to work with in Checks.

See Also:

  • Field Details

    • elements

      private final List<String> elements
      The list holding subsequent elements of identifier.

    • detailAst

      private DetailAST detailAst
      The topmost and leftmost AST of the full identifier.

  • Constructor Details

    • FullIdent

      private FullIdent()
      Hide default constructor.

  • Method Details

    • createFullIdentBelow

      public static FullIdent createFullIdentBelow(DetailAST ast)
      Creates a new FullIdent starting from the child of the specified node.
      Parameters:
      ast - the parent node from where to start from
      Returns:
      a FullIdent value

    • createFullIdent

      public static FullIdent createFullIdent(DetailAST ast)
      Creates a new FullIdent starting from the specified node.
      Parameters:
      ast - the node to start from
      Returns:
      a FullIdent value

    • extractFullIdent

      private static void extractFullIdent(FullIdent full, DetailAST ast)
      Extracts a FullIdent.
      Parameters:
      full - the FullIdent to add to
      ast - the node

    • appendToFull

      private static int appendToFull(FullIdent full, DetailAST ast, int dotCounter, boolean bracketsExist, boolean isArrayTypeDeclarationStart)
      Populates the FullIdent node.
      Parameters:
      full - the FullIdent to add to
      ast - the node
      dotCounter - no of dots
      bracketsExist - yes if true
      isArrayTypeDeclarationStart - true if array type declaration start
      Returns:
      updated value of dotCounter

    • pushToIdentStack

      private static void pushToIdentStack(Deque<DetailAST> stack, DetailAST ast)
      Pushes to stack if ast is not null.
      Parameters:
      stack - stack to push into
      ast - node to push into stack

    • isArrayTypeDeclaration

      private static boolean isArrayTypeDeclaration(DetailAST arrayDeclarator)
      Checks an `ARRAY_DECLARATOR` ast to verify that it is not an array initialization, i.e. 'new int [2][2]'. We do this by making sure that no 'EXPR' token exists in this branch.
      Parameters:
      arrayDeclarator - the first ARRAY_DECLARATOR token in the ast
      Returns:
      true if ast is an array type declaration

    • appendBrackets

      private static void appendBrackets(FullIdent full, DetailAST ast)
      Appends the brackets of an array type to a FullIdent.
      Parameters:
      full - the FullIdent to append brackets to
      ast - the type ast we are building a FullIdent for

    • getText

      public String getText()
      Gets the text.
      Returns:
      the text

    • getDetailAst

      public DetailAST getDetailAst()
      Gets the topmost leftmost DetailAST for this FullIdent.
      Returns:
      the topmost leftmost ast

    • getLineNo

      public int getLineNo()
      Gets the line number.
      Returns:
      the line number

    • getColumnNo

      public int getColumnNo()
      Gets the column number.
      Returns:
      the column number

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • append

      private void append(String text)
      Append the specified text.
      Parameters:
      text - the text to append

    • append

      private void append(DetailAST ast)
      Append the specified token and also recalibrate the first line and column.
      Parameters:
      ast - the token to append