org.scalastyle.scalariform.NoWhitespaceBracketChecker.scala Maven / Gradle / Ivy

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// Copyright (C) 2011-2012 the original author or authors.
// See the LICENCE.txt file distributed with this work for additional
// information regarding copyright ownership.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.scalastyle.scalariform

import org.scalastyle.PositionError
import org.scalastyle.ScalariformChecker
import org.scalastyle.ScalastyleError

import scalariform.lexer.Tokens.LBRACKET
import scalariform.parser.CompilationUnit

class NoWhitespaceBeforeLeftBracketChecker extends ScalariformChecker {
  val errorKey = "no.whitespace.before.left.bracket"

  def verify(ast: CompilationUnit): List[ScalastyleError] = {
    val it = for {
      List(left, right) <- ast.tokens.sliding(2);
      if (right.tokenType == LBRACKET && charsBetweenTokens(left, right) > 0)
    } yield {
      PositionError(left.offset)
    }

    it.toList
  }
}

class NoWhitespaceAfterLeftBracketChecker extends ScalariformChecker {
  val errorKey = "no.whitespace.after.left.bracket"

  def verify(ast: CompilationUnit): List[ScalastyleError] = {
    val it = for {
      List(left, right) <- ast.tokens.sliding(2);
      if (left.tokenType == LBRACKET && charsBetweenTokens(left, right) > 0)
    } yield {
      PositionError(left.offset)
    }

    it.toList
  }
}