exit 1
      fi
      break
    fi
    if [ "$arg" = "-f" -o "$arg" = "--file" ]; then
      found_file_switch=1
    fi
  done
  echo "$basedir"
)
}

# concatenates all lines of a file
concat_lines() {
  if [ -f "$1" ]; then
    echo "`tr -s '\r\n' '  ' < "$1"`"
  fi
}

MAVEN_PROJECTBASEDIR="`find_maven_basedir "$@"`"

import com.google.common.base.Preconditions;
import java.io.IOException;
import java.io.Reader;
import java.util.Iterator;
import javax.annotation.CheckForNull;

/**
 * A {@link Reader} that concatenates multiple readers.
 *
 * @author Bin Zhu
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
class MultiReader extends Reader {

import com.google.common.base.Preconditions;
import java.io.IOException;
import java.io.Reader;
import java.util.Iterator;
import javax.annotation.CheckForNull;

/**
 * A {@link Reader} that concatenates multiple readers.
 *
 * @author Bin Zhu
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
class MultiReader extends Reader {

        def result = resolve(include('TEST(FILE, NAME)'))
        result.complete
        result.files.file as List == [header]
    }

    def "expands arguments of macro function that calls macro function that concatenates parameters to produce macro reference"() {
        given:
        def header = systemIncludeDir.createFile("test.h")

        macros << macro("A", 'FILE')
        macros << macro("C", 'NAME')

import com.google.common.annotations.J2ktIncompatible;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import javax.annotation.CheckForNull;

/**
 * An {@link InputStream} that concatenates multiple substreams. At most one stream will be open at
 * a time.
 *
 * @author Chris Nokleberg
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

        """

        expect:
        resolve() == [header]
    }

    def "resolves macro function with multiple args that concatenates empty right hand side to produce macro"() {
        given:
        sourceFile << """
            #define HEADER_NAME "hello.h"
            #define HEADER(X, Y) X ## Y
            #include HEADER(HEADER_NAME,)

   * @return a {@code CharSource} containing the concatenated data
   * @since 15.0
   */
  public static CharSource concat(Iterable<? extends CharSource> sources) {
    return new ConcatenatedCharSource(sources);
  }

  /**
   * Concatenates multiple {@link CharSource} instances into a single source. Streams returned from
   * the source will contain the concatenated data from the streams of the underlying sources.
   *

namespace {

// Prefix and suffix to the QuantizationUnit string representation.
constexpr std::string_view kQuantizationUnitPrefix = "QuantizationUnit(";
constexpr std::string_view kQuantizationUnitSuffix = ")";

// Concatenates node name and func name with a "@" separator.
std::string ConcatNodeAndFuncName(std::string_view node_name,
                                  std::string_view func_name) {
  return absl::StrCat(node_name, "@", func_name);
}

import com.google.common.annotations.J2ktIncompatible;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import javax.annotation.CheckForNull;

/**
 * An {@link InputStream} that concatenates multiple substreams. At most one stream will be open at
 * a time.
 *
 * @author Chris Nokleberg
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

   * @return a {@code CharSource} containing the concatenated data
   * @since 15.0
   */
  public static CharSource concat(Iterable<? extends CharSource> sources) {
    return new ConcatenatedCharSource(sources);
  }

  /**
   * Concatenates multiple {@link CharSource} instances into a single source. Streams returned from
   * the source will contain the concatenated data from the streams of the underlying sources.
   *