elements of a const List not considered const

[trinarytree]

const x = const [1, 2];
const y = x[0];

yields
"error: ... expression is not a valid compile-time constant"

looks pretty constant to me. i don't see how it's much different from
const x = 1;
const y = x + 1;
which is allowed.

Dart VM version: 1.6.0-dev.5.1 (Thu Jul 24 19:35:53 2014) on "linux_x64"

[srawlins]

This looks like a duplicate of Issue #18389.

[DartBot]

This comment was originally written by @mezoni

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const x = const [1, 2];

The const [1, 2] can be canonicalized at compile time.
OK.

const y = x[0];

The x[0] can NOT be canonicalized at compile time.
FAIL.

P.S.

The const in Dart means not only constant.
The const in Dart also means can be canonicalized.
How in Dart possible canonicalize the indexed array operation?

P.S.
#­1
1 == 1
Const.
Can be canonicalized.

#­2
Colors.RED == Colors.RED
Const.
Can NOT be canonicalized.

[floitschG]

Thanks Sam.

---

Added Duplicate label.
Marked as being merged into #18389.

[DartBot]

This comment was originally written by @mezoni

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elements of a const List not considered const

What means "elements" of something (not only elements of the "List")?
This means a value which are the result of the operator "[]".
Is this possible in Dart (const V operator [K index])?

const x = const [1, 2];
const INDEX = x[1];
const y = x[INDEX];
const z = x[666];