COMPILATION_UNIT -> COMPILATION_UNIT [1:0]
|--PACKAGE_DEF -> package [1:0]
|   |--ANNOTATIONS -> ANNOTATIONS [1:47]
|   |--DOT -> . [1:47]
|   |   |--DOT -> . [1:39]
|   |   |   |--DOT -> . [1:28]
|   |   |   |   |--DOT -> . [1:22]
|   |   |   |   |   |--DOT -> . [1:11]
|   |   |   |   |   |   |--IDENT -> com [1:8]
|   |   |   |   |   |   `--IDENT -> puppycrawl [1:12]
|   |   |   |   |   `--IDENT -> tools [1:23]
|   |   |   |   `--IDENT -> checkstyle [1:29]
|   |   |   `--IDENT -> grammar [1:40]
|   |   `--IDENT -> antlr4 [1:48]
|   `--SEMI -> ; [1:54]
`--CLASS_DEF -> CLASS_DEF [3:0]
    |--MODIFIERS -> MODIFIERS [3:0]
    |   `--LITERAL_PUBLIC -> public [3:0]
    |--LITERAL_CLASS -> class [3:7]
    |--IDENT -> InputAntlr4AstRegressionConstructorCall [3:13]
    `--OBJBLOCK -> OBJBLOCK [3:53]
        |--LCURLY -> { [3:53]
        |--VARIABLE_DEF -> VARIABLE_DEF [4:4]
        |   |--MODIFIERS -> MODIFIERS [4:4]
        |   |   `--LITERAL_PRIVATE -> private [4:4]
        |   |--TYPE -> TYPE [4:12]
        |   |   `--LITERAL_INT -> int [4:12]
        |   |--IDENT -> f [4:16]
        |   `--SEMI -> ; [4:17]
        |--CTOR_DEF -> CTOR_DEF [6:4]
        |   |--MODIFIERS -> MODIFIERS [6:4]
        |   |   `--LITERAL_PUBLIC -> public [6:4]
        |   |--IDENT -> InputAntlr4AstRegressionConstructorCall [6:11]
        |   |--LPAREN -> ( [6:50]
        |   |--PARAMETERS -> PARAMETERS [6:51]
        |   |   `--PARAMETER_DEF -> PARAMETER_DEF [6:51]
        |   |       |--MODIFIERS -> MODIFIERS [6:51]
        |   |       |--TYPE -> TYPE [6:51]
        |   |       |   `--LITERAL_INT -> int [6:51]
        |   |       `--IDENT -> i [6:55]
        |   |--RPAREN -> ) [6:56]
        |   `--SLIST -> { [6:58]
        |       |--EXPR -> EXPR [7:10]
        |       |   `--ASSIGN -> = [7:10]
        |       |       |--IDENT -> f [7:8]
        |       |       `--IDENT -> i [7:12]
        |       |--SEMI -> ; [7:13]
        |       `--RCURLY -> } [8:4]
        |--CTOR_DEF -> CTOR_DEF [10:4]
        |   |--MODIFIERS -> MODIFIERS [10:4]
        |   |   `--LITERAL_PUBLIC -> public [10:4]
        |   |--IDENT -> InputAntlr4AstRegressionConstructorCall [10:11]
        |   |--LPAREN -> ( [10:50]
        |   |--PARAMETERS -> PARAMETERS [10:51]
        |   |   `--PARAMETER_DEF -> PARAMETER_DEF [10:51]
        |   |       |--MODIFIERS -> MODIFIERS [10:51]
        |   |       |--TYPE -> TYPE [10:51]
        |   |       |   `--LITERAL_FLOAT -> float [10:51]
        |   |       `--IDENT -> f [10:57]
        |   |--RPAREN -> ) [10:58]
        |   `--SLIST -> { [10:60]
        |       |--CTOR_CALL -> this [11:8]
        |       |   |--LPAREN -> ( [11:12]
        |       |   |--ELIST -> ELIST [11:13]
        |       |   |   `--EXPR -> EXPR [11:13]
        |       |   |       `--TYPECAST -> ( [11:13]
        |       |   |           |--TYPE -> TYPE [11:14]
        |       |   |           |   `--LITERAL_INT -> int [11:14]
        |       |   |           |--RPAREN -> ) [11:17]
        |       |   |           `--IDENT -> f [11:19]
        |       |   |--RPAREN -> ) [11:20]
        |       |   `--SEMI -> ; [11:21]
        |       `--RCURLY -> } [12:4]
        `--RCURLY -> } [14:0]
