This change attempts to resolve issue #7636: Extract into Function does not
create a generic function with constraints when extracting generic code.
In `FunctionBody::analyze_container`, we now traverse the `ancestors` in search
of `AnyHasGenericParams`, and attach any `GenericParamList`s and `WhereClause`s
we find to the `ContainerInfo`.
Later, in `format_function`, we collect all the `GenericParam`s and
`WherePred`s from the container, and filter them to keep only types matching
`TypeParam`s used within the newly extracted function body or param list. We
can then include the new `GenericParamList` and `WhereClause` in the new
function definition.
This change only impacts `TypeParam`s. `LifetimeParam`s and `ConstParam`s are
out of scope for this change.
Fix obsolete config keys
The config keys were drastically reorganized by #12010, but the docs don't reflect the updates, causing inconsistency and confusion. I checked for such obsolete configuration keys and updated to the new one. For reproducibility, I attach a small shell script that I used to examine the old keys. Now the script only detects `cargoExtraArgs` and `overrideCargo`, which originates from other type definition in the code but not from the configuration.
<details><summary>script</summary>
```bash
echo "allowMergingIntoGlobImports
exprFillDefault
importEnforceGranularity
importGranularity
importMergeBehavior
importMergeBehaviour
importGroup
importPrefix
warmup
loadOutDirsFromCheck
runBuildScripts
runBuildScriptsCommand
useRustcWrapperForBuildScripts
enableExperimental
procAttrMacros
breakPoints
exitPoints
yieldPoints
linksInHover
linksInHover
gotoTypeDef
chainingHints
closureReturnTypeHints
hideNamedConstructorHints
parameterHints
reborrowHints
typeHints
lruCapacity
cargoExtraArgs
overrideCargo
rustcSource
enableRangeFormatting
assist\.allowMergingIntoGlobImports
assist\.exprFillDefault
assist\.importEnforceGranularity
assist\.importGranularity
assist\.importMergeBehavior
assist\.importMergeBehaviour
assist\.importGroup
assist\.importPrefix
primeCaches\.enable
cache\.warmup
cargo\.loadOutDirsFromCheck
cargo\.runBuildScripts
cargo\.runBuildScriptsCommand
cargo\.useRustcWrapperForBuildScripts
completion\.snippets
diagnostics\.enableExperimental
experimental\.procAttrMacros
highlighting\.strings
highlightRelated\.breakPoints
highlightRelated\.exitPoints
highlightRelated\.yieldPoints
highlightRelated\.references
hover\.documentation
hover\.linksInHover
hoverActions\.linksInHover
hoverActions\.debug
hoverActions\.enable
hoverActions\.gotoTypeDef
hoverActions\.implementations
hoverActions\.references
hoverActions\.run
inlayHints\.chainingHints
inlayHints\.closureReturnTypeHints
inlayHints\.hideNamedConstructorHints
inlayHints\.parameterHints
inlayHints\.reborrowHints
inlayHints\.typeHints
lruCapacity
runnables\.cargoExtraArgs
runnables\.overrideCargo
rustcSource
rustfmt\.enableRangeFormatting
allFeatures
addCallArgumentSnippets
addCallParenthesis
callInfo\.full
cargo\.allFeatures
checkOnSave\.allFeatures
completion\.addCallArgumentSnippets
completion\.addCallParenthesis" | while read -r pattern
do
rg '\b'$pattern'\b([^.]|$)' . -g "!crates/rust-analyzer/src/config/patch_old_style.rs" -g "!editors/code/src/config.ts" -g "!a.sh" --no-heading --color=always --line-number
done
exit
excluded
# debug
# enable
# run
# implementations
# references
# documentation
# references
# snippets
# strings
# full
```
</details>
When extracting a field expression, if RA was unable to resolve the type of the
field, we would previously fall back to using "var_name" as the variable name.
Now, when the `Expr` being extracted matches a `FieldExpr`, we can use the
`NameRef`'s ident token as a fallback option.
fixes#10035
This change fixes#12705.
In `FunctionBody::analyze`, we need to search any `ClosureExpr`s we encounter
for any `NameRef`s, to ensure they aren't missed.
fix: Extract function from trait impl
This change fixes#10036, "Extract to function assist implements nonexistent
trait methods".
When we detect that the extraction is coming from within a trait impl, and that
a `self` param will be necessary, we adjust which `SyntaxNode` to `insert_after`,
and create a new empty `impl` block for the newly extracted function.
This change fixes#10036, "Extract to function assist implements nonexistent
trait methods".
When we detect that the extraction is coming from within a trait impl, and that
a `self` param will be necessary, we adjust which `SyntaxNode` to `insert_after`,
and create a new empty `impl` block for the newly extracted function.
This change fixes issue #10037, in more or less the most naive fashion
possible.
We continue to start with the hardcoded default of "fun_name", and now append a
counter to the end of it if that name is already in scope.
In the future, we can probably apply more heuristics here to wind up with more
useful names by default, but for now this resolves the immediate problem.
