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b3fdab28a2
This makes the position object used in exceptions abstract, with a method getSource() to get the source code of the file in which the error originated. This is needed for lazy trees because source files don't necessarily exist in the filesystem, and we don't want to make libutil depend on the InputAccessor type in libfetcher.
72 lines
1.6 KiB
Bash
Executable File
72 lines
1.6 KiB
Bash
Executable File
source common.sh
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set +x
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expect_trace() {
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expr="$1"
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expect="$2"
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actual=$(
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nix-instantiate \
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--trace-function-calls \
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--expr "$expr" 2>&1 \
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| grep "function-trace" \
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| sed -e 's/ [0-9]*$//'
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)
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echo -n "Tracing expression '$expr'"
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set +e
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msg=$(diff -swB \
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<(echo "$expect") \
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<(echo "$actual")
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);
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result=$?
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set -e
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if [ $result -eq 0 ]; then
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echo " ok."
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else
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echo " failed. difference:"
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echo "$msg"
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return $result
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fi
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}
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# failure inside a tryEval
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expect_trace 'builtins.tryEval (throw "example")' "
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function-trace entered «string»:1:1 at
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function-trace entered «string»:1:19 at
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function-trace exited «string»:1:19 at
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function-trace exited «string»:1:1 at
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"
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# Missing argument to a formal function
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expect_trace '({ x }: x) { }' "
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function-trace entered «string»:1:1 at
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function-trace exited «string»:1:1 at
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"
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# Too many arguments to a formal function
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expect_trace '({ x }: x) { x = "x"; y = "y"; }' "
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function-trace entered «string»:1:1 at
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function-trace exited «string»:1:1 at
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"
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# Not enough arguments to a lambda
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expect_trace '(x: y: x + y) 1' "
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function-trace entered «string»:1:1 at
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function-trace exited «string»:1:1 at
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"
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# Too many arguments to a lambda
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expect_trace '(x: x) 1 2' "
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function-trace entered «string»:1:1 at
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function-trace exited «string»:1:1 at
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"
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# Not a function
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expect_trace '1 2' "
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function-trace entered «string»:1:1 at
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function-trace exited «string»:1:1 at
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"
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set -e
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