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Mark some fields in EvalState as const

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This commit is contained in:
Eelco Dolstra 2025-10-27 14:10:34 +01:00
parent bef3c37cb2
commit 1f6ac88efc
2 changed files with 18 additions and 13 deletions
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12
src/libexpr/eval.cc
View file

@ -3067,7 +3067,7 @@ Expr * EvalState::parseExprFromFile(const SourcePath & path)
return parseExprFromFile(path, staticBaseEnv);
}
Expr * EvalState::parseExprFromFile(const SourcePath & path, std::shared_ptr<StaticEnv> & staticEnv)
Expr * EvalState::parseExprFromFile(const SourcePath & path, const std::shared_ptr<StaticEnv> & staticEnv)
{
auto buffer = path.resolveSymlinks().readFile();
// readFile hopefully have left some extra space for terminators
@ -3075,8 +3075,8 @@ Expr * EvalState::parseExprFromFile(const SourcePath & path, std::shared_ptr<Sta
return parse(buffer.data(), buffer.size(), Pos::Origin(path), path.parent(), staticEnv);
}
Expr *
EvalState::parseExprFromString(std::string s_, const SourcePath & basePath, std::shared_ptr<StaticEnv> & staticEnv)
Expr * EvalState::parseExprFromString(
std::string s_, const SourcePath & basePath, const std::shared_ptr<StaticEnv> & staticEnv)
{
// NOTE this method (and parseStdin) must take care to *fully copy* their input
// into their respective Pos::Origin until the parser stops overwriting its input
@ -3210,7 +3210,11 @@ std::optional<SourcePath> EvalState::resolveLookupPathPath(const LookupPath::Pat
}
Expr * EvalState::parse(
char * text, size_t length, Pos::Origin origin, const SourcePath & basePath, std::shared_ptr<StaticEnv> & staticEnv)
char * text,
size_t length,
Pos::Origin origin,
const SourcePath & basePath,
const std::shared_ptr<StaticEnv> & staticEnv)
{
DocCommentMap tmpDocComments; // Only used when not origin is not a SourcePath
DocCommentMap * docComments = &tmpDocComments;

19
src/libexpr/include/nix/expr/eval.hh
View file

@ -418,7 +418,7 @@ public:
RootValue vImportedDrvToDerivation = nullptr;
ref<fetchers::InputCache> inputCache;
const ref<fetchers::InputCache> inputCache;
/**
* Debugger
@ -471,18 +471,18 @@ private:
/* Cache for calls to addToStore(); maps source paths to the store
paths. */
ref<boost::concurrent_flat_map<SourcePath, StorePath>> srcToStore;
const ref<boost::concurrent_flat_map<SourcePath, StorePath>> srcToStore;
/**
* A cache that maps paths to "resolved" paths for importing Nix
* expressions, i.e. `/foo` to `/foo/default.nix`.
*/
ref<boost::concurrent_flat_map<SourcePath, SourcePath>> importResolutionCache;
const ref<boost::concurrent_flat_map<SourcePath, SourcePath>> importResolutionCache;
/**
* A cache from resolved paths to values.
*/
ref<boost::concurrent_flat_map<
const ref<boost::concurrent_flat_map<
SourcePath,
Value *,
std::hash<SourcePath>,
@ -592,12 +592,13 @@ public:
* Parse a Nix expression from the specified file.
*/
Expr * parseExprFromFile(const SourcePath & path);
Expr * parseExprFromFile(const SourcePath & path, std::shared_ptr<StaticEnv> & staticEnv);
Expr * parseExprFromFile(const SourcePath & path, const std::shared_ptr<StaticEnv> & staticEnv);
/**
* Parse a Nix expression from the specified string.
*/
Expr * parseExprFromString(std::string s, const SourcePath & basePath, std::shared_ptr<StaticEnv> & staticEnv);
Expr *
parseExprFromString(std::string s, const SourcePath & basePath, const std::shared_ptr<StaticEnv> & staticEnv);
Expr * parseExprFromString(std::string s, const SourcePath & basePath);
Expr * parseStdin();
@ -766,7 +767,7 @@ public:
#if NIX_USE_BOEHMGC
/** A GC root for the baseEnv reference. */
std::shared_ptr<Env *> baseEnvP;
const std::shared_ptr<Env *> baseEnvP;
#endif
public:
@ -780,7 +781,7 @@ public:
/**
* The same, but used during parsing to resolve variables.
*/
std::shared_ptr<StaticEnv> staticBaseEnv; // !!! should be private
const std::shared_ptr<StaticEnv> staticBaseEnv; // !!! should be private
/**
* Internal primops not exposed to the user.
@ -862,7 +863,7 @@ private:
size_t length,
Pos::Origin origin,
const SourcePath & basePath,
std::shared_ptr<StaticEnv> & staticEnv);
const std::shared_ptr<StaticEnv> & staticEnv);
/**
* Current Nix call stack depth, used with `max-call-depth` setting to throw stack overflow hopefully before we run