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| author | dos-reis <gdr@axiomatics.org> | 2008-12-03 14:08:08 +0000 |
|---|---|---|
| committer | dos-reis <gdr@axiomatics.org> | 2008-12-03 14:08:08 +0000 |
| commit | b18855381e61c452349e46e79e9b83ebd1a94dee (patch) | |
| tree | bf0cdbe0e46bb9611bedfe5b3e8af69242f11ec7 /src/interp | |
| parent | 9ae0de86f9c72d88a5c1bd66b1e75a13b9387e05 (diff) | |
| download | open-axiom-b18855381e61c452349e46e79e9b83ebd1a94dee.tar.gz | |
* interp/compiler.boot (compIs): Error if left operand is not a
domain expression.
Diffstat (limited to 'src/interp')
| -rw-r--r-- | src/interp/compiler.boot | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/interp/compiler.boot b/src/interp/compiler.boot index 3245b887..81860046 100644 --- a/src/interp/compiler.boot +++ b/src/interp/compiler.boot @@ -1405,7 +1405,10 @@ compColonInside(x,m,e,m') == compIs: (%Form,%Mode,%Env) -> %Maybe %Triple compIs(["is",a,b],m,e) == - [aval,am,e] := comp(a,$EmptyMode,e) or return nil + [aval,am,e] := comp(a,$EmptyMode,e) or + stackAndThrow('"Cannot determine the type of the expression %1b",[a]) + not isCategoryForm(am,e) => + stackAndThrow('"Expression %1b does not designate a domain",[a]) [bval,bm,e] := comp(b,$EmptyMode,e) or return nil T:= [["domainEqual",aval,bval],$Boolean,e] coerce(T,m) |