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go/internal
Muir Manders 88e652f7a8 internal/lsp/cache: improve completion after dangling selector
Dangling selectors such as:

    func _() {
      x.
    }
    var x struct { i int }

tend to wreak havoc on the AST. In the above example you didn't used
to get completions because the declaration of "x" was missing from the
AST.

We now work around this issue by inserting a "_" into the source code
before parsing to make the selector valid:

    func _() {
      x._ // <-- insert "_" here
    }
    var x struct { i int }

This makes completion work as expected because the declaration of "x"
is present in the AST.

I had to change fixAST() to be called before fixSrc() because
otherwise this new workaround in fixSrc() breaks the "accidental
keyword" countermeasures in fixAST().

Fixes golang/go#31973.
Updates golang/go#31687.

Change-Id: Ia7ef6c045a9c71502d1b8b36f187ac9b8a85fe21
Reviewed-on: https://go-review.googlesource.com/c/tools/+/216484
Run-TryBot: Muir Manders <muir@mnd.rs>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-02-13 22:46:42 +00:00
..
apidiff all: fix more typos 2019-09-11 15:13:14 +00:00
fastwalk all: fix some staticcheck errors 2020-01-29 04:53:41 +00:00
gopathwalk all: fix some staticcheck errors 2020-01-29 04:53:41 +00:00
imports internal/imports: import packages from x/mod instead of internal copy 2020-02-10 19:23:13 +00:00
jsonrpc2 internal/lsp: refactor LSP server instantiation 2020-02-06 23:12:37 +00:00
lsp internal/lsp/cache: improve completion after dangling selector 2020-02-13 22:46:42 +00:00
memoize internal/lsp/debug: serve cache entry counts 2020-02-03 22:21:18 +00:00
packagesinternal go/packages: internally expose ForTests in go/packages 2020-01-16 22:11:50 +00:00
span internal/span, internal/lsp: fix URI escaping 2020-02-04 00:54:49 +00:00
telemetry all: fix some staticcheck errors 2020-01-29 04:53:41 +00:00
testenv internal/testenv: reject the resolved 'go' command if it does not match runtime.GOROOT 2019-11-11 19:22:22 +00:00
tool internal/lsp, internal/tool: clean up command line of gopls 2019-12-16 17:36:52 +00:00
xcontext internal/lsp: stop making background contexts everywhere 2019-07-11 16:38:52 +00:00