Formatting of tabular array initializer confused by negative numbers

[andrewkreid]

Negative numbers in the initializer of an array with tabular formatting makes google-java-format not preserve the layout.

$ cat T.java
package foo;

public class FormattingTester {

  private static final double[] flinePoints = {
    95.0, 75.0, 95.0, 75.0,
    95.0, 75.0, 95.0, 75.0
  };

  private static final double[] flinePoints2 = {
    95.0, 75.0, -95.0, 75.0,
    -95.0, 75.0, 95.0, 75.0
  };
}

$ java -jar ~/Downloads/google-java-format-1.7-all-deps.jar T.java
package foo;

public class FormattingTester {

  private static final double[] flinePoints = {
    95.0, 75.0, 95.0, 75.0,
    95.0, 75.0, 95.0, 75.0
  };

  private static final double[] flinePoints2 = {95.0, 75.0, -95.0, 75.0, -95.0, 75.0, 95.0, 75.0};
}

[andrewkreid]

It seems this is because JavaInputAstVisitor.expressionsAreParallel() is using Tree.Kind as a key, and negative numbers are UNARY_MINUS, not DOUBLE_LITERAL.

Presumably this would also fail if you left the ".0" off the double literals that didn't need it (as they would then become INT_LITERALs).