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Make "value()" evaluate its second argument lazily.

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If the variable whose name is the first argument exists, don't
bother evaluating the second argument.
This commit is contained in:
Dianne Skoll
2025-05-26 21:56:04 -04:00
parent a69a96529b
commit 44b50fc6be
3 changed files with 98 additions and 17 deletions
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18
tests/test.cmp
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@@ -16554,10 +16554,26 @@ shell("ls") => RUN disabled
../tests/test.rem(1588): shell(): RUN disabled
RUN disabled
# "value" should use lazy evaluation
set a value(4:33)
value(04:33) => Type mismatch
../tests/test.rem(1591): Type mismatch
set a value('2020-01-01', 42)
value(2020-01-01, ?) => Type mismatch
../tests/test.rem(1592): Type mismatch
set a value("nosuchvar")
value("nosuchvar") => Undefined variable
../tests/test.rem(1593): Undefined variable
set a value("nosuchvar", 42)
value("nosuchvar", 42) => 42
set a value("a", 42)
value("a", ?) => 42
set a value("a")
value("a") => 42
DEBUG -x
DEBUG -e
../tests/test.rem(1596): eval(): Too many recursive function calls
../tests/test.rem(1603): eval(): Too many recursive function calls
Base: 1991-02-09
Base: 1991-02-09
Variable hash table statistics:

7
tests/test.rem
View File

@@ -1587,6 +1587,13 @@ FUNSET i
set a "eval(\"1\")+ shell(\"ls\")"
set b eval(a)
# "value" should use lazy evaluation
set a value(4:33)
set a value('2020-01-01', 42)
set a value("nosuchvar")
set a value("nosuchvar", 42)
set a value("a", 42)
set a value("a")
DEBUG -x
DEBUG -e