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First attempt to include the semantic highlight feature, introduced in specification 3.16.0. #740

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jlahoda
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@jlahoda jlahoda commented Dec 25, 2020

This is a crude attempt to include semantic highlights introduced in LSP spec 3.16.0:
https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_semanticTokens

It is mostly copied src/message_handler.cc#emitSemanticHighlight, with some tweaks. Feedback is welcome!

@MaskRay
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MaskRay commented Dec 26, 2020

Thanks! I guess the specification is probably a bit unfortunate, since the payload may be much larger than the ccls extension...

@FelipeLema
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I've been using this branch today and it looks like it works all right (at least, for starters… I didn't see any obvious errors or problems)

@MaskRay is there any documentation of how to handle the missing TODOs? (I didn't seem to run to any of these errors, btw)

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Do you know which client can be used for testing? It seems that semantic tokens do not support rainbow semantic highlighting?

@@ -25,6 +25,47 @@
namespace ccls {
using namespace llvm;

std::vector<const char *> SEMANTIC_TOKENS = {
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const char *SEMANTIC_TOKENS[] =

@@ -0,0 +1,257 @@
// Copyright 2017-2020 ccls Authors
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Omit year number // Copyright ccls Authors


}

void MessageHandler::textDocument_semanticTokensFull(
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This replicates too many lines in message_handler.cc. You can make the message_handler.cc implementation public and call that function.

@MaskRay MaskRay force-pushed the master branch 3 times, most recently from db890d4 to cc13ced Compare November 6, 2024 05:57
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3 participants