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libexpr: parser.y: api.value.type variant

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This commit is contained in:
Taeer Bar-Yam 2025-10-20 21:47:25 +02:00
parent 7e8db2eb59
commit 32b286e5d6
6 changed files with 99 additions and 125 deletions
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34
src/libexpr/lexer.l
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@ -142,11 +142,11 @@ or { return OR_KW; }
return PIPE_INTO;
}
{ID} { yylval->id = {yytext, (size_t) yyleng}; return ID; }
{ID} { yylval->emplace<StringToken>(yytext, (size_t) yyleng); return ID; }
{INT} { errno = 0;
std::optional<int64_t> numMay = string2Int<int64_t>(yytext);
if (numMay.has_value()) {
yylval->n = NixInt{*numMay};
yylval->emplace<NixInt>(*numMay);
} else {
throw ParseError(ErrorInfo{
.msg = HintFmt("invalid integer '%1%'", yytext),
@ -156,7 +156,7 @@ or { return OR_KW; }
return INT_LIT;
}
{FLOAT} { errno = 0;
yylval->nf = strtod(yytext, 0);
yylval->emplace<NixFloat>(strtod(yytext, 0));
if (errno != 0)
throw ParseError(ErrorInfo{
.msg = HintFmt("invalid float '%1%'", yytext),
@ -183,7 +183,7 @@ or { return OR_KW; }
/* It is impossible to match strings ending with '$' with one
regex because trailing contexts are only valid at the end
of a rule. (A sane but undocumented limitation.) */
yylval->str = unescapeStr(yytext, yyleng, [&]() { return state->positions[CUR_POS]; });
yylval->emplace<StringToken>(unescapeStr(yytext, yyleng, [&]() { return state->positions[CUR_POS]; }));
return STR;
}
<STRING>\$\{ { PUSH_STATE(DEFAULT); return DOLLAR_CURLY; }
@ -198,27 +198,27 @@ or { return OR_KW; }
\'\'(\ *\n)? { PUSH_STATE(IND_STRING); return IND_STRING_OPEN; }
<IND_STRING>([^\$\']|\$[^\{\']|\'[^\'\$])+ {
yylval->str = {yytext, (size_t) yyleng, true};
forceNoNullByte(yylval->str, [&]() { return state->positions[CUR_POS]; });
yylval->emplace<StringToken>(yytext, (size_t) yyleng, true);
forceNoNullByte(yylval->as<StringToken>(), [&]() { return state->positions[CUR_POS]; });
return IND_STR;
}
<IND_STRING>\'\'\$ |
<IND_STRING>\$ {
yylval->str = {"$", 1};
yylval->emplace<StringToken>("$", 1);
return IND_STR;
}
<IND_STRING>\'\'\' {
yylval->str = {"''", 2};
yylval->emplace<StringToken>("''", 2);
return IND_STR;
}
<IND_STRING>\'\'\\{ANY} {
yylval->str = unescapeStr(yytext + 2, yyleng - 2, [&]() { return state->positions[CUR_POS]; });
yylval->emplace<StringToken>(unescapeStr(yytext + 2, yyleng - 2, [&]() { return state->positions[CUR_POS]; }));
return IND_STR;
}
<IND_STRING>\$\{ { PUSH_STATE(DEFAULT); return DOLLAR_CURLY; }
<IND_STRING>\'\' { POP_STATE(); return IND_STRING_CLOSE; }
<IND_STRING>\' {
yylval->str = {"'", 1};
yylval->emplace<StringToken>("'", 1);
return IND_STR;
}
@ -232,14 +232,14 @@ or { return OR_KW; }
<PATH_START>{PATH_SEG} {
POP_STATE();
PUSH_STATE(INPATH_SLASH);
yylval->path = {yytext, (size_t) yyleng};
yylval->emplace<StringToken>(yytext, (size_t) yyleng);
return PATH;
}
<PATH_START>{HPATH_START} {
POP_STATE();
PUSH_STATE(INPATH_SLASH);
yylval->path = {yytext, (size_t) yyleng};
yylval->emplace<StringToken>(yytext, (size_t) yyleng);
return HPATH;
}
@ -248,7 +248,7 @@ or { return OR_KW; }
PUSH_STATE(INPATH_SLASH);
else
PUSH_STATE(INPATH);
yylval->path = {yytext, (size_t) yyleng};
yylval->emplace<StringToken>(yytext, (size_t) yyleng);
return PATH;
}
{HPATH} {
@ -256,7 +256,7 @@ or { return OR_KW; }
PUSH_STATE(INPATH_SLASH);
else
PUSH_STATE(INPATH);
yylval->path = {yytext, (size_t) yyleng};
yylval->emplace<StringToken>(yytext, (size_t) yyleng);
return HPATH;
}
@ -272,7 +272,7 @@ or { return OR_KW; }
PUSH_STATE(INPATH_SLASH);
else
PUSH_STATE(INPATH);
yylval->str = {yytext, (size_t) yyleng};
yylval->emplace<StringToken>(yytext, (size_t) yyleng);
return STR;
}
<INPATH>{ANY} |
@ -294,8 +294,8 @@ or { return OR_KW; }
});
}
{SPATH} { yylval->path = {yytext, (size_t) yyleng}; return SPATH; }
{URI} { yylval->uri = {yytext, (size_t) yyleng}; return URI; }
{SPATH} { yylval->emplace<StringToken>(yytext, (size_t) yyleng); return SPATH; }
{URI} { yylval->emplace<StringToken>(yytext, (size_t) yyleng); return URI; }
%{
// Doc comment rule