Expander not using lexical context of macro definition site

[97jaz]

This:

var umem = new Uint8Array(1024);

macro word {
  rule { ($addr:expr) } => { ((umem[$addr] << 8) | umem[($addr)+1]) }
}

word(4);

expands to this:

var umem$186 = new Uint8Array(1024);
umem[4] << 8 | umem[4 + 1];

So, umem is being renamed at its definition site, but the expansion isn't using that name.

[97jaz]

Oh, but I see it does work as a case macro:

macro word {
  case { _ ($addr:expr) } => { return #{((umem[$addr] << 8) | umem[($addr)+1])} }
}

Is it intentional that it doesn't word as a rule macro? Scheme's syntax-rules does handle this.

[disnet]

Nope, not intentional. Looks like a bug in rule macros.