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Append a slash in ./${"foo"}

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This commit is contained in:
Eelco Dolstra 2022-12-14 13:47:47 +01:00
parent a322306247
commit d8620d7797
1 changed files with 21 additions and 11 deletions
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32
src/libexpr/parser.y
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@ -317,6 +317,10 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
std::vector<nix::AttrName> * attrNames;
std::vector<std::pair<nix::PosIdx, nix::Expr *>> * string_parts;
std::vector<std::pair<nix::PosIdx, std::variant<nix::Expr *, StringToken>>> * ind_string_parts;
struct {
nix::Expr * e;
bool appendSlash;
} pathStart;
}
%type <e> start expr expr_function expr_if expr_op
@ -328,7 +332,8 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
%type <attrNames> attrs attrpath
%type <string_parts> string_parts_interpolated
%type <ind_string_parts> ind_string_parts
%type <e> path_start string_parts string_attr
%type <pathStart> path_start
%type <e> string_parts string_attr
%type <id> attr
%token <id> ID ATTRPATH
%token <str> STR IND_STR
@ -455,9 +460,11 @@ expr_simple
| IND_STRING_OPEN ind_string_parts IND_STRING_CLOSE {
$$ = stripIndentation(CUR_POS, data->symbols, *$2);
}
| path_start PATH_END { $$ = $1; }
| path_start PATH_END { $$ = $1.e; }
| path_start string_parts_interpolated PATH_END {
$2->insert($2->begin(), {makeCurPos(@1, data), $1});
if ($1.appendSlash)
$2->insert($2->begin(), {noPos, new ExprString("/")});
$2->insert($2->begin(), {makeCurPos(@1, data), $1.e});
$$ = new ExprConcatStrings(CUR_POS, false, $2);
}
| SPATH {
@ -509,13 +516,16 @@ string_parts_interpolated
path_start
: PATH {
std::string_view path({$1.p, $1.l});
$$ = new ExprPath(
/* Absolute paths are always interpreted relative to the
root filesystem accessor, rather than the accessor of the
current Nix expression. */
hasPrefix(path, "/")
? SourcePath{data->state.rootFS, CanonPath(path)}
: SourcePath{data->basePath.accessor, CanonPath(path, data->basePath.path)});
$$ = {
.e = new ExprPath(
/* Absolute paths are always interpreted relative to the
root filesystem accessor, rather than the accessor of the
current Nix expression. */
hasPrefix(path, "/")
? SourcePath{data->state.rootFS, CanonPath(path)}
: SourcePath{data->basePath.accessor, CanonPath(path, data->basePath.path)}),
.appendSlash = hasSuffix(path, "/")
};
}
| HPATH {
if (evalSettings.pureEval) {
@ -525,7 +535,7 @@ path_start
);
}
Path path(getHome() + std::string($1.p + 1, $1.l - 1));
$$ = new ExprPath(data->state.rootPath(path));
$$ = {.e = new ExprPath(data->state.rootPath(path)), .appendSlash = true};
}
;