[clangd] Implement textDocument/hover
Summary: Implemention of textDocument/hover as described in LSP definition.
This patch adds a basic Hover implementation. When hovering a variable,
function, method or namespace, clangd will return a text containing the
declaration's scope, as well as the declaration of the hovered entity.
For example, for a variable:
Declared in class Foo::Bar
int hello = 2
For macros, the macro definition is returned.
This patch doesn't include:
- markdown support (the client I use doesn't support it yet)
- range support (optional in the Hover response)
- comments associated to variables/functions/classes
They are kept as future work to keep this patch simpler.
I added tests in XRefsTests.cpp. hover.test contains one simple
smoketest to make sure the feature works from a black box perspective.
Reviewers: malaperle, krasimir, bkramer, ilya-biryukov
Subscribers: sammccall, mgrang, klimek, rwols, ilya-biryukov, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D35894
Signed-off-by: Simon Marchi <[email protected]>
Signed-off-by: William Enright <[email protected]>
llvm-svn: 325395
14 files changed
