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libexpr: experimental pipe operators

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This commit is contained in:
Ryan Hendrickson 2024-07-24 13:17:28 -04:00
parent 874c1bdbbf
commit e086d5d899
10 changed files with 174 additions and 9 deletions
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14
src/libexpr/lexer.l
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@ -67,6 +67,14 @@ static StringToken unescapeStr(SymbolTable & symbols, char * s, size_t length)
return {result, size_t(t - result)};
}
static void requireExperimentalFeature(const ExperimentalFeature & feature, const Pos & pos)
{
if (!experimentalFeatureSettings.isEnabled(feature))
throw ParseError(ErrorInfo{
.msg = HintFmt("experimental Nix feature '%1%' is disabled; add '--extra-experimental-features %1%' to enable it", showExperimentalFeature(feature)),
.pos = pos,
});
}
}
@ -119,6 +127,12 @@ or { return OR_KW; }
\-\> { return IMPL; }
\/\/ { return UPDATE; }
\+\+ { return CONCAT; }
\<\| { requireExperimentalFeature(Xp::PipeOperators, state->positions[CUR_POS]);
return PIPE_FROM;
}
\|\> { requireExperimentalFeature(Xp::PipeOperators, state->positions[CUR_POS]);
return PIPE_INTO;
}
{ID} { yylval->id = {yytext, (size_t) yyleng}; return ID; }
{INT} { errno = 0;