1443298657
The previous clang-tidy invocation missed some header files, which has now been rectified. Change-Id: I31547754fbf52f439dc7aeefb08ab90bd50c4156 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1831 Reviewed-by: glittershark <grfn@gws.fyi> Tested-by: BuildkiteCI
100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
// Parser utilities for use in parser.y
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#pragma once
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// TODO(tazjin): Audit these includes, they were in parser.y
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#include <optional>
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#include <variant>
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#include <glog/logging.h>
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#include "libexpr/eval.hh"
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#include "libexpr/nixexpr.hh"
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#include "libutil/util.hh"
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#define YY_DECL \
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int yylex(YYSTYPE* yylval_param, YYLTYPE* yylloc_param, yyscan_t yyscanner, \
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nix::ParseData* data)
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#define CUR_POS makeCurPos(*yylocp, data)
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namespace nix {
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struct ParseData {
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EvalState& state;
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SymbolTable& symbols;
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Expr* result;
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Path basePath;
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std::optional<Symbol> path;
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std::string error;
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Symbol sLetBody;
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ParseData(EvalState& state)
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: state(state),
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symbols(state.symbols),
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sLetBody(symbols.Create("<let-body>")){};
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};
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// Clang fails to identify these functions as used, probably because
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// of some interaction between the lexer/parser codegen and something
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// else.
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//
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// To avoid warnings for that we disable -Wunused-function in this block.
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wunused-function"
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// TODO(tazjin): move dupAttr to anonymous namespace
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static void dupAttr(const AttrPath& attrPath, const Pos& pos,
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const Pos& prevPos) {
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throw ParseError(format("attribute '%1%' at %2% already defined at %3%") %
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showAttrPath(attrPath) % pos % prevPos);
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}
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static void dupAttr(Symbol attr, const Pos& pos, const Pos& prevPos) {
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throw ParseError(format("attribute '%1%' at %2% already defined at %3%") %
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attr % pos % prevPos);
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}
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void addAttr(ExprAttrs* attrs, AttrPath& attrPath, Expr* e, const Pos& pos);
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void addFormal(const Pos& pos, Formals* formals, const Formal& formal);
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Expr* stripIndentation(const Pos& pos, SymbolTable& symbols, VectorExprs& es);
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Path resolveExprPath(Path path);
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// implementations originally from lexer.l
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static Expr* unescapeStr(SymbolTable& symbols, const char* s, size_t length) {
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std::string t;
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t.reserve(length);
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char c;
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while ((c = *s++)) {
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if (c == '\\') {
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assert(*s);
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c = *s++;
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if (c == 'n') {
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t += '\n';
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} else if (c == 'r') {
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t += '\r';
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} else if (c == 't') {
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t += '\t';
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} else {
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t += c;
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}
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} else if (c == '\r') {
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/* Normalise CR and CR/LF into LF. */
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t += '\n';
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if (*s == '\n') {
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s++;
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} /* cr/lf */
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} else {
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t += c;
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}
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}
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return new ExprString(symbols.Create(t));
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}
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#pragma clang diagnostic pop // re-enable -Wunused-function
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} // namespace nix
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