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7e40e1726e
- show signature for function calls whose function expression is not
an object (e.g. the second call in foo()()). since the function name
is not available, we use the generic "func"
- only provide signature help when the position is on or within the
call expression parens. this is consistent with the one other lsp
server i tried (java). this improves the gopls experience in emacs
where lsp-mode is constantly calling "hover" and
"signatureHelp" ("hover" should be preferred unless you are inside
the function params list)
- use the entire signature type string as the label since that includes
the return values, which are useful to see
- don't qualify the function name with its package. it looks funny to
see "bytes.Cap()" as the help when you are in a call
to (*bytes.Buffer).Cap(). it could be useful to include invocant
type info, but leave it out for now since signature help is meant to
focus on the function parameters.
- don't turn variadic args "foo ...int" into "foo []int" for the
parameter information (i.e. maintain it as "foo ...int")
- when determining active parameter, count the space before a
parameter name as being part of that parameter (e.g. the space
before "b" in "func(a int, b int)")
- handle variadic params when determining the active param (i.e.
highlight "foo(a int, *b ...string*)" on signature help for final
param in `foo(123, "a", "b", "c")`
- don't generate an extra space in formatParams() for unnamed
arguments
I also tweaked the signatureHelp server log message to include the
error message itself, and populated the server's logger in lsp_test.go
to aid in development.
Fixes golang/go#31448
Change-Id: Iefe0e1e3c531d17197c0fa997b949174475a276c
GitHub-Last-Rev: 5c0b8ebd87a8c05d5d8f519ea096f94e89c77e2c
GitHub-Pull-Request: golang/tools#82
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172439
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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| analyzer | ||
| anon | ||
| bad | ||
| bar | ||
| baz | ||
| builtins | ||
| cast | ||
| complit | ||
| errors | ||
| foo | ||
| format | ||
| func_rank | ||
| godef | ||
| good | ||
| highlights | ||
| nodisk | ||
| noparse | ||
| noparse_format | ||
| rank | ||
| selector | ||
| signature | ||
| stringlit | ||
| symbols | ||
| testy | ||
| types | ||