42 lines
947 B
Perl
42 lines
947 B
Perl
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$ cat > dune-project << EOF
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> (lang dune 3.3)
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> EOF
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(env) is evaluated sequentially:
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$ cat > dune << 'EOF'
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> (rule
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> (alias runtest)
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> (action (system "echo $VAR")))
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>
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> (env
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> (_ (env-vars (VAR default )))
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> (dev (env-vars (VAR specific))))
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> EOF
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A warning is displayed when there are unreachable cases.
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$ dune runtest
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File "dune", lines 5-7, characters 0-71:
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5 | (env
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6 | (_ (env-vars (VAR default )))
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7 | (dev (env-vars (VAR specific))))
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Warning: This env stanza contains rules after a wildcard rule. These are
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going to be ignored.
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default
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In 3.4, this warning becomes fatal.
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$ cat > dune-project << EOF
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> (lang dune 3.4)
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> EOF
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$ dune runtest
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File "dune", lines 5-7, characters 0-71:
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5 | (env
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6 | (_ (env-vars (VAR default )))
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7 | (dev (env-vars (VAR specific))))
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Error: This env stanza contains rules after a wildcard rule. These are going
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to be ignored.
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[1]
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