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Make BaseArch getDecalGraphics return an empty range

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Fix assertion failure when opening the GUI on an arch without any
decals.

Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2021-02-12 10:35:51 +00:00
parent ad7bb51030
commit c956cae824
2 changed files with 2 additions and 2 deletions
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2
common/nextpnr.h
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@ -1375,7 +1375,7 @@ template <typename R> struct BaseArch : ArchAPI<R>
// Decal methods
virtual typename R::DecalGfxRangeT getDecalGraphics(DecalId decal) const override
{
NPNR_ASSERT_FALSE("unreachable");
return empty_if_possible<typename R::DecalGfxRangeT>();
};
virtual DecalXY getBelDecal(BelId bel) const override { return DecalXY(); }
virtual DecalXY getWireDecal(WireId wire) const override { return DecalXY(); }

2
docs/archapi.md
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@ -573,7 +573,7 @@ Return the graphic elements that make up a decal.
The same decal must always produce the same list. If the graphics for
a design element changes, that element must return another decal.
*BaseArch default: asserts false as unreachable due to there being no decals*
*BaseArch default: returns default-constructed range*
### DecalXY getBelDecal(BelId bel) const