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libexpr: Rename "column" fields to offset

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... because that's what they are.
This commit is contained in:
Robert Hensing 2024-07-11 13:06:39 +02:00
parent 77e9f9ee82
commit 71cb8bf509
4 changed files with 21 additions and 21 deletions
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10
src/libexpr/lexer-helpers.cc
View file

@ -4,7 +4,7 @@
void nix::lexer::internal::initLoc(YYLTYPE * loc)
{
loc->first_column = loc->last_column = 0;
loc->beginOffset = loc->endOffset = 0;
}
void nix::lexer::internal::adjustLoc(yyscan_t yyscanner, YYLTYPE * loc, const char * s, size_t len)
@ -16,15 +16,15 @@ void nix::lexer::internal::adjustLoc(yyscan_t yyscanner, YYLTYPE * loc, const ch
if (lexerState.docCommentDistance == 1) {
// Preceding token was a doc comment.
ParserLocation doc;
doc.first_column = lexerState.lastDocCommentLoc.first_column;
doc.beginOffset = lexerState.lastDocCommentLoc.beginOffset;
ParserLocation docEnd;
docEnd.first_column = lexerState.lastDocCommentLoc.last_column;
docEnd.beginOffset = lexerState.lastDocCommentLoc.endOffset;
DocComment docComment{lexerState.at(doc), lexerState.at(docEnd)};
PosIdx locPos = lexerState.at(*loc);
lexerState.positionToDocComment.emplace(locPos, docComment);
}
lexerState.docCommentDistance++;
loc->first_column = loc->last_column;
loc->last_column += len;
loc->beginOffset = loc->endOffset;
loc->endOffset += len;
}

4
src/libexpr/lexer.l
View file

@ -287,8 +287,8 @@ or { return OR_KW; }
\/\*\*[^/*]([^*]|\*+[^*/])*\*+\/ /* doc comments */ {
LexerState & lexerState = *yyget_extra(yyscanner);
lexerState.docCommentDistance = 0;
lexerState.lastDocCommentLoc.first_column = yylloc->first_column;
lexerState.lastDocCommentLoc.last_column = yylloc->last_column;
lexerState.lastDocCommentLoc.beginOffset = yylloc->beginOffset;
lexerState.lastDocCommentLoc.endOffset = yylloc->endOffset;
}

18
src/libexpr/parser-state.hh
View file

@ -22,20 +22,20 @@ struct StringToken
struct ParserLocation
{
int first_column;
int last_column;
int beginOffset;
int endOffset;
// backup to recover from yyless(0)
int stashed_first_column, stashed_last_column;
int stashedBeginOffset, stashedEndOffset;
void stash() {
stashed_first_column = first_column;
stashed_last_column = last_column;
stashedBeginOffset = beginOffset;
stashedEndOffset = endOffset;
}
void unstash() {
first_column = stashed_first_column;
last_column = stashed_last_column;
beginOffset = stashedBeginOffset;
endOffset = stashedEndOffset;
}
/** Latest doc comment position, or 0. */
@ -308,12 +308,12 @@ inline Expr * ParserState::stripIndentation(const PosIdx pos,
inline PosIdx LexerState::at(const ParserLocation & loc)
{
return positions.add(origin, loc.first_column);
return positions.add(origin, loc.beginOffset);
}
inline PosIdx ParserState::at(const ParserLocation & loc)
{
return positions.add(origin, loc.first_column);
return positions.add(origin, loc.beginOffset);
}
}

10
src/libexpr/parser.y
View file

@ -36,13 +36,13 @@
do \
if (N) \
{ \
(Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
(Current).last_column = YYRHSLOC (Rhs, N).last_column; \
(Current).beginOffset = YYRHSLOC (Rhs, 1).beginOffset; \
(Current).endOffset = YYRHSLOC (Rhs, N).endOffset; \
} \
else \
{ \
(Current).first_column = (Current).last_column = \
YYRHSLOC (Rhs, 0).last_column; \
(Current).beginOffset = (Current).endOffset = \
YYRHSLOC (Rhs, 0).endOffset; \
} \
while (0)
@ -83,7 +83,7 @@ using namespace nix;
void yyerror(YYLTYPE * loc, yyscan_t scanner, ParserState * state, const char * error)
{
if (std::string_view(error).starts_with("syntax error, unexpected end of file")) {
loc->first_column = loc->last_column;
loc->beginOffset = loc->endOffset;
}
throw ParseError({
.msg = HintFmt(error),