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Merge pull request #9918 from 9999years/debugger-locals-for-let-expressions

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Expose locals from `let` expressions to the debugger

(cherry picked from commit acef4f17a2daab4ccdf656bdf229792db2f779e4)
Change-Id: Ib3623254f67ac762f4e7230d625e9f87dff38a84
This commit is contained in:
eldritch horrors 2024-03-04 08:54:52 +01:00
parent cd654451c9
commit 542a19104e
2 changed files with 12 additions and 6 deletions
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9
doc/manual/rl-next/debugger-locals-for-let-expressions.md Normal file
View file

@ -0,0 +1,9 @@
---
synopsis: "`--debugger` can now access bindings from `let` expressions"
prs: 9918
issues: 8827.
---
Breakpoints and errors in the bindings of a `let` expression can now access
those bindings in the debugger. Previously, only the body of `let` expressions
could access those bindings.

9
src/libexpr/nixexpr.cc
View file

@ -470,9 +470,6 @@ void ExprCall::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> &
void ExprLet::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env) void ExprLet::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
{ {
if (es.debugRepl)
es.exprEnvs.insert(std::make_pair(this, env));
auto newEnv = std::make_shared<StaticEnv>(nullptr, env.get(), attrs->attrs.size()); auto newEnv = std::make_shared<StaticEnv>(nullptr, env.get(), attrs->attrs.size());
Displacement displ = 0; Displacement displ = 0;
@ -484,6 +481,9 @@ void ExprLet::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> &
for (auto & i : attrs->attrs) for (auto & i : attrs->attrs)
i.second.e->bindVars(es, i.second.inherited ? env : newEnv); i.second.e->bindVars(es, i.second.inherited ? env : newEnv);
if (es.debugRepl)
es.exprEnvs.insert(std::make_pair(this, newEnv));
body->bindVars(es, newEnv); body->bindVars(es, newEnv);
} }
@ -508,9 +508,6 @@ void ExprWith::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> &
break; break;
} }
if (es.debugRepl)
es.exprEnvs.insert(std::make_pair(this, env));
attrs->bindVars(es, env); attrs->bindVars(es, env);
auto newEnv = std::make_shared<StaticEnv>(this, env.get()); auto newEnv = std::make_shared<StaticEnv>(this, env.get());
body->bindVars(es, newEnv); body->bindVars(es, newEnv);