PHP-Parser/test/code/parser/expr/fetchAndCall/constantDeref.test

Array/string dereferencing
-----
<?php

"abc"[2];
"abc"[2][0][0];

[1, 2, 3][2];
[1, 2, 3][2][0][0];

array(1, 2, 3)[2];
array(1, 2, 3)[2][0][0];

FOO[0];
Foo::BAR[1];
$foo::BAR[2][1][0];
-----
array(
    0: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Scalar_String(
                value: abc
            )
            dim: Scalar_LNumber(
                value: 2
            )
        )
    )
    1: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_ArrayDimFetch(
                var: Expr_ArrayDimFetch(
                    var: Scalar_String(
                        value: abc
                    )
                    dim: Scalar_LNumber(
                        value: 2
                    )
                )
                dim: Scalar_LNumber(
                    value: 0
                )
            )
            dim: Scalar_LNumber(
                value: 0
            )
        )
    )
    2: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_Array(
                items: array(
                    0: Expr_ArrayItem(
                        key: null
                        value: Scalar_LNumber(
                            value: 1
                        )
                        byRef: false
                        unpack: false
                    )
                    1: Expr_ArrayItem(
                        key: null
                        value: Scalar_LNumber(
                            value: 2
                        )
                        byRef: false
                        unpack: false
                    )
                    2: Expr_ArrayItem(
                        key: null
                        value: Scalar_LNumber(
                            value: 3
                        )
                        byRef: false
                        unpack: false
                    )
                )
            )
            dim: Scalar_LNumber(
                value: 2
            )
        )
    )
    3: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_ArrayDimFetch(
                var: Expr_ArrayDimFetch(
                    var: Expr_Array(
                        items: array(
                            0: Expr_ArrayItem(
                                key: null
                                value: Scalar_LNumber(
                                    value: 1
                                )
                                byRef: false
                                unpack: false
                            )
                            1: Expr_ArrayItem(
                                key: null
                                value: Scalar_LNumber(
                                    value: 2
                                )
                                byRef: false
                                unpack: false
                            )
                            2: Expr_ArrayItem(
                                key: null
                                value: Scalar_LNumber(
                                    value: 3
                                )
                                byRef: false
                                unpack: false
                            )
                        )
                    )
                    dim: Scalar_LNumber(
                        value: 2
                    )
                )
                dim: Scalar_LNumber(
                    value: 0
                )
            )
            dim: Scalar_LNumber(
                value: 0
            )
        )
    )
    4: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_Array(
                items: array(
                    0: Expr_ArrayItem(
                        key: null
                        value: Scalar_LNumber(
                            value: 1
                        )
                        byRef: false
                        unpack: false
                    )
                    1: Expr_ArrayItem(
                        key: null
                        value: Scalar_LNumber(
                            value: 2
                        )
                        byRef: false
                        unpack: false
                    )
                    2: Expr_ArrayItem(
                        key: null
                        value: Scalar_LNumber(
                            value: 3
                        )
                        byRef: false
                        unpack: false
                    )
                )
            )
            dim: Scalar_LNumber(
                value: 2
            )
        )
    )
    5: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_ArrayDimFetch(
                var: Expr_ArrayDimFetch(
                    var: Expr_Array(
                        items: array(
                            0: Expr_ArrayItem(
                                key: null
                                value: Scalar_LNumber(
                                    value: 1
                                )
                                byRef: false
                                unpack: false
                            )
                            1: Expr_ArrayItem(
                                key: null
                                value: Scalar_LNumber(
                                    value: 2
                                )
                                byRef: false
                                unpack: false
                            )
                            2: Expr_ArrayItem(
                                key: null
                                value: Scalar_LNumber(
                                    value: 3
                                )
                                byRef: false
                                unpack: false
                            )
                        )
                    )
                    dim: Scalar_LNumber(
                        value: 2
                    )
                )
                dim: Scalar_LNumber(
                    value: 0
                )
            )
            dim: Scalar_LNumber(
                value: 0
            )
        )
    )
    6: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_ConstFetch(
                name: Name(
                    parts: array(
                        0: FOO
                    )
                )
            )
            dim: Scalar_LNumber(
                value: 0
            )
        )
    )
    7: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_ClassConstFetch(
                class: Name(
                    parts: array(
                        0: Foo
                    )
                )
                name: Identifier(
                    name: BAR
                )
            )
            dim: Scalar_LNumber(
                value: 1
            )
        )
    )
    8: Stmt_Expression(
        expr: Expr_ArrayDimFetch(
            var: Expr_ArrayDimFetch(
                var: Expr_ArrayDimFetch(
                    var: Expr_ClassConstFetch(
                        class: Expr_Variable(
                            name: foo
                        )
                        name: Identifier(
                            name: BAR
                        )
                    )
                    dim: Scalar_LNumber(
                        value: 2
                    )
                )
                dim: Scalar_LNumber(
                    value: 1
                )
            )
            dim: Scalar_LNumber(
                value: 0
            )
        )
    )
)