mirror of
https://github.com/NixOS/nix
synced 2025-06-30 07:33:16 +02:00
Merge remote-tracking branch 'origin/master' into lazy-trees
This commit is contained in:
Eelco Dolstra
commit
dfbb9a997f
46 changed files with 1339 additions and 391 deletions
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@ -14,7 +14,6 @@
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#include <unordered_map>
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#include <mutex>
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namespace nix {
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@ -27,7 +26,6 @@ enum RepairFlag : bool;
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typedef void (* PrimOpFun) (EvalState & state, const PosIdx pos, Value * * args, Value & v);
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struct PrimOp
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{
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PrimOpFun fun;
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@ -37,6 +35,11 @@ struct PrimOp
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const char * doc = nullptr;
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};
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#if HAVE_BOEHMGC
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typedef std::map<std::string, Value *, std::less<std::string>, traceable_allocator<std::pair<const std::string, Value *> > > ValMap;
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#else
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typedef std::map<std::string, Value *> ValMap;
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#endif
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struct Env
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{
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@ -46,6 +49,10 @@ struct Env
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Value * values[0];
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};
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void printEnvBindings(const EvalState &es, const Expr & expr, const Env & env);
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void printEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env, int lvl = 0);
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std::unique_ptr<ValMap> mapStaticEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env);
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void copyContext(const Value & v, PathSet & context);
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@ -68,8 +75,17 @@ struct RegexCache;
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std::shared_ptr<RegexCache> makeRegexCache();
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struct DebugTrace {
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std::optional<ErrPos> pos;
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const Expr & expr;
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const Env & env;
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hintformat hint;
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bool isError;
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};
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class EvalState
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void debugError(Error * e, Env & env, Expr & expr);
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class EvalState : public std::enable_shared_from_this<EvalState>
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{
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public:
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SymbolTable symbols;
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@ -108,6 +124,49 @@ public:
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RootValue vCallFlake = nullptr;
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RootValue vImportedDrvToDerivation = nullptr;
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/* Debugger */
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void (* debugRepl)(ref<EvalState> es, const ValMap & extraEnv);
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bool debugStop;
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bool debugQuit;
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std::list<DebugTrace> debugTraces;
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std::map<const Expr*, const std::shared_ptr<const StaticEnv>> exprEnvs;
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const std::shared_ptr<const StaticEnv> getStaticEnv(const Expr & expr) const
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{
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auto i = exprEnvs.find(&expr);
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if (i != exprEnvs.end())
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return i->second;
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else
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return std::shared_ptr<const StaticEnv>();;
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}
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void runDebugRepl(const Error * error, const Env & env, const Expr & expr);
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template<class E>
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[[gnu::noinline, gnu::noreturn]]
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void debugThrow(E && error, const Env & env, const Expr & expr)
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{
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if (debugRepl)
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runDebugRepl(&error, env, expr);
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throw error;
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}
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template<class E>
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[[gnu::noinline, gnu::noreturn]]
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void debugThrowLastTrace(E && e)
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{
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// Call this in the situation where Expr and Env are inaccessible.
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// The debugger will start in the last context that's in the
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// DebugTrace stack.
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if (debugRepl && !debugTraces.empty()) {
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const DebugTrace & last = debugTraces.front();
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runDebugRepl(&e, last.env, last.expr);
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}
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throw e;
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}
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private:
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/* Cache for calls to addToStore(); maps source paths to the store
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@ -124,7 +183,7 @@ private:
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/* A cache from path names to values. */
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#if HAVE_BOEHMGC
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typedef std::map<SourcePath, Value, std::less<SourcePath>, traceable_allocator<std::pair<const SourcePath, Value> >> FileEvalCache;
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typedef std::map<SourcePath, Value, std::less<SourcePath>, traceable_allocator<std::pair<const SourcePath, Value>>> FileEvalCache;
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#else
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typedef std::map<SourcePath, Value> FileEvalCache;
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#endif
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@ -184,10 +243,10 @@ public:
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/* Parse a Nix expression from the specified file. */
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Expr * parseExprFromFile(const SourcePath & path);
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Expr * parseExprFromFile(const SourcePath & path, StaticEnv & staticEnv);
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Expr * parseExprFromFile(const SourcePath & path, std::shared_ptr<StaticEnv> & staticEnv);
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/* Parse a Nix expression from the specified string. */
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Expr * parseExprFromString(std::string s, const SourcePath & basePath, StaticEnv & staticEnv);
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Expr * parseExprFromString(std::string s, const SourcePath & basePath, std::shared_ptr<StaticEnv> & staticEnv);
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Expr * parseExprFromString(std::string s, const SourcePath & basePath);
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Expr * parseStdin();
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@ -248,35 +307,70 @@ public:
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std::string_view forceStringNoCtx(Value & v, const PosIdx pos = noPos);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx pos, const char * s) const;
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void throwEvalError(const PosIdx pos, const char * s);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const PosIdx pos, const char * s, const Value & v) const;
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void throwEvalError(const PosIdx pos, const char * s,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
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const std::string & s2) const;
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void throwEvalError(const char * s, const std::string & s2);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx pos, const char * s, std::string_view s2);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const char * s, const std::string & s2,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx pos, const char * s, const std::string & s2,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const char * s, const std::string & s2, const std::string & s3,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx pos, const char * s, std::string_view s2) const;
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const char * s, const std::string & s2, const std::string & s3) const;
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void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3) const;
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void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3);
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[[gnu::noinline, gnu::noreturn]]
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void throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2) const;
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void throwEvalError(const char * s, const std::string & s2, const std::string & s3);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const PosIdx pos, const char * s) const;
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void throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s, const std::string & s2,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun, const Symbol s2) const;
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void throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
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const ExprLambda & fun, const Symbol s2) const;
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void throwTypeError(const PosIdx pos, const char * s, const Value & v);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const char * s, const Value & v) const;
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void throwTypeError(const PosIdx pos, const char * s, const Value & v,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwAssertionError(const PosIdx pos, const char * s, const std::string & s1) const;
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void throwTypeError(const PosIdx pos, const char * s);
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[[gnu::noinline, gnu::noreturn]]
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void throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1) const;
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void throwTypeError(const PosIdx pos, const char * s,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1) const;
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void throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun, const Symbol s2,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s, const ExprLambda & fun, const Symbol s2,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwTypeError(const char * s, const Value & v,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwAssertionError(const PosIdx pos, const char * s, const std::string & s1,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1,
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Env & env, Expr & expr);
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[[gnu::noinline, gnu::noreturn]]
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void throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1,
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Env & env, Expr & expr);
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[[gnu::noinline]]
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void addErrorTrace(Error & e, const char * s, const std::string & s2) const;
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@ -315,7 +409,7 @@ public:
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Env & baseEnv;
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/* The same, but used during parsing to resolve variables. */
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StaticEnv staticBaseEnv; // !!! should be private
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std::shared_ptr<StaticEnv> staticBaseEnv; // !!! should be private
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private:
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@ -361,7 +455,7 @@ private:
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FileOrigin origin,
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const PathView path,
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const SourcePath & basePath,
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StaticEnv & staticEnv);
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std::shared_ptr<StaticEnv> & staticEnv);
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public:
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@ -456,6 +550,16 @@ private:
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friend struct Value;
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};
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struct DebugTraceStacker {
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DebugTraceStacker(EvalState & evalState, DebugTrace t);
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~DebugTraceStacker()
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{
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// assert(evalState.debugTraces.front() == trace);
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evalState.debugTraces.pop_front();
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}
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EvalState & evalState;
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DebugTrace trace;
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};
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/* Return a string representing the type of the value `v'. */
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std::string_view showType(ValueType type);
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