* Adds incoming calls hierarchy to gopls. Returns function declarations/function literals/files enclosing the call/s to the function being inpected.
* Updates cmd to show ranges where calls to function in consideration are made by the caller.
* Added tests for incoming calls.
Example:
This example shows call hierarchy for PathEnclosingInterval in tools/go/ast/astutil.go
Show Call Hierarchy View: https://imgur.com/a/9VhspgA
Peek Call Hierarchy View: https://imgur.com/a/XlKubFk
Note:
* Function literals show up as <scope>.func() in call hierarchy since they don't have a name. Here scope is either the function enclosing the literal or a file for top level declarations
* Top level calls (calls not inside a function, ex: to initialize exported variables) show up as the file name
* Clicking on an item shows the the range where a call is made in the scope
Change-Id: I56426139e4e550dfabe43c9e9f1838efd1e43e38
Reviewed-on: https://go-review.googlesource.com/c/tools/+/247699
Run-TryBot: Danish Dua <danishdua@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
* adds gopls command line tool for call hierarchy
* adds lsp setup for call hierarchy
* adds handler for textDocument/prepareCallHierarchy to display selected
identifier and get incoming/outgoing calls for it
* setup testing
Change-Id: I0a0904abdbe11273a56162b6e5be93b97ceb9c26
Reviewed-on: https://go-review.googlesource.com/c/tools/+/246521
Run-TryBot: Danish Dua <danishdua@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
