https://github.com/16bit-ykiko created
https://github.com/llvm/llvm-project/pull/107982
This commit adds code completion for C++20 keywords.
1. complete `concept` in template context
- [x] `template<typename T> conce^` -> `concept`
- [ ] `conce^`
2. complete `requires`
- [x] constraints in template context: `template<typename T> requi^` ->
`requires`
- [x] requires expression: `int x = requ^` -> `requires (parameters) {
requirements }`
- [x] nested requirement: `requires { requ^ }` -> `requires expression ;`
3. complete coroutine keywords
- [x] `co_await^` in expression: `co_aw^` -> `co_await expression;`
- [x] `co_yield` in function body: `co_yi^` -> `co_yield expression;`
- [x] `co_return` in function body: `co_re^` -> `co_return expression;`
4. specifiers: `char8_t`, `consteval`, `constinit`
>From fedea9e4fd57b618fe341e0c30982bff0f098c52 Mon Sep 17 00:00:00 2001
From: ykiko <ykikoykikoyk...@gmail.com>
Date: Tue, 10 Sep 2024 14:59:10 +0800
Subject: [PATCH 1/2] add co_return, co_await, co_yield, consteval, constinit,
concept, requires, char8_t.
---
clang/lib/Sema/SemaCodeComplete.cpp | 61 +++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
diff --git a/clang/lib/Sema/SemaCodeComplete.cpp
b/clang/lib/Sema/SemaCodeComplete.cpp
index 88d4732c7d5c6a..d8f6b1dada942a 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1837,6 +1837,11 @@ static void AddTypeSpecifierResults(const LangOptions
&LangOpts,
Builder.AddChunk(CodeCompletionString::CK_RightParen);
Results.AddResult(Result(Builder.TakeString()));
}
+
+ if(LangOpts.CPlusPlus20){
+ Results.AddResult(Result("char8_t", CCP_Type));
+ Results.AddResult(Result("concept", CCP_Keyword));
+ }
} else
Results.AddResult(Result("__auto_type", CCP_Type));
@@ -1889,6 +1894,10 @@
AddStorageSpecifiers(SemaCodeCompletion::ParserCompletionContext CCC,
Results.AddResult(Result("constexpr"));
Results.AddResult(Result("thread_local"));
}
+
+ if (LangOpts.CPlusPlus20) {
+ Results.AddResult(Result("constinit"));
+ }
}
static void
@@ -1912,6 +1921,9 @@
AddFunctionSpecifiers(SemaCodeCompletion::ParserCompletionContext CCC,
case SemaCodeCompletion::PCC_Template:
if (LangOpts.CPlusPlus || LangOpts.C99)
Results.AddResult(Result("inline"));
+
+ if (LangOpts.CPlusPlus20)
+ Results.AddResult(Result("consteval"));
break;
case SemaCodeCompletion::PCC_ObjCInstanceVariableList:
@@ -2487,6 +2499,14 @@
AddOrdinaryNameResults(SemaCodeCompletion::ParserCompletionContext CCC,
Builder.AddPlaceholderChunk("expression");
Builder.AddChunk(CodeCompletionString::CK_SemiColon);
Results.AddResult(Result(Builder.TakeString()));
+ // "co_return expression ;" for coroutines(C++20).
+ if (SemaRef.getLangOpts().CPlusPlus20) {
+ Builder.AddTypedTextChunk("co_return");
+ Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+ Builder.AddPlaceholderChunk("expression");
+ Builder.AddChunk(CodeCompletionString::CK_SemiColon);
+ Results.AddResult(Result(Builder.TakeString()));
+ }
// When boolean, also add 'return true;' and 'return false;'.
if (ReturnType->isBooleanType()) {
Builder.AddTypedTextChunk("return true");
@@ -2707,6 +2727,47 @@
AddOrdinaryNameResults(SemaCodeCompletion::ParserCompletionContext CCC,
Builder.AddChunk(CodeCompletionString::CK_RightParen);
Results.AddResult(Result(Builder.TakeString()));
}
+
+ if (SemaRef.getLangOpts().CPlusPlus20) {
+ // co_await expression
+ Builder.AddResultTypeChunk("");
+ Builder.AddTypedTextChunk("co_await");
+ Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+ Builder.AddPlaceholderChunk("expression");
+ Results.AddResult(Result(Builder.TakeString()));
+
+ // co_yield expression
+ Builder.AddResultTypeChunk("");
+ Builder.AddTypedTextChunk("co_yield");
+ Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+ Builder.AddPlaceholderChunk("expression");
+ Results.AddResult(Result(Builder.TakeString()));
+
+ // requires (parameters) { requirements }
+ Builder.AddResultTypeChunk("bool");
+ Builder.AddTypedTextChunk("requires");
+ Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+ Builder.AddChunk(CodeCompletionString::CK_LeftParen);
+ Builder.AddPlaceholderChunk("parameters");
+ Builder.AddChunk(CodeCompletionString::CK_RightParen);
+ Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+ Builder.AddChunk(CodeCompletionString::CK_LeftBrace);
+ Builder.AddChunk(CodeCompletionString::CK_VerticalSpace);
+ Builder.AddPlaceholderChunk("requirements");
+ Builder.AddChunk(CodeCompletionString::CK_VerticalSpace);
+ Builder.AddChunk(CodeCompletionString::CK_RightBrace);
+ Results.AddResult(Result(Builder.TakeString()));
+
+ if(llvm::isa<clang::RequiresExprBodyDecl>(SemaRef.CurContext)){
+ // requires expression ;
+ Builder.AddResultTypeChunk("");
+ Builder.AddTypedTextChunk("requires");
+ Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+ Builder.AddPlaceholderChunk("expression");
+ Builder.AddChunk(CodeCompletionString::CK_SemiColon);
+ Results.AddResult(Result(Builder.TakeString()));
+ }
+ }
}
if (SemaRef.getLangOpts().ObjC) {
>From 36a0db2b827baaabe17c5cd7b576802be586c69c Mon Sep 17 00:00:00 2001
From: ykiko <ykikoykikoyk...@gmail.com>
Date: Tue, 10 Sep 2024 15:50:04 +0800
Subject: [PATCH 2/2] make concept and requires more sensitive to context.
---
clang/lib/Sema/SemaCodeComplete.cpp | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/clang/lib/Sema/SemaCodeComplete.cpp
b/clang/lib/Sema/SemaCodeComplete.cpp
index d8f6b1dada942a..4647d65430b8c3 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1840,7 +1840,6 @@ static void AddTypeSpecifierResults(const LangOptions
&LangOpts,
if(LangOpts.CPlusPlus20){
Results.AddResult(Result("char8_t", CCP_Type));
- Results.AddResult(Result("concept", CCP_Keyword));
}
} else
Results.AddResult(Result("__auto_type", CCP_Type));
@@ -2266,6 +2265,10 @@
AddOrdinaryNameResults(SemaCodeCompletion::ParserCompletionContext CCC,
[[fallthrough]];
case SemaCodeCompletion::PCC_Template:
+ if (SemaRef.getLangOpts().CPlusPlus20 && CCC ==
SemaCodeCompletion::PCC_Template)
+ Results.AddResult(Result("concept", CCP_Keyword));
+ [[fallthrough]];
+
case SemaCodeCompletion::PCC_MemberTemplate:
if (SemaRef.getLangOpts().CPlusPlus && Results.includeCodePatterns()) {
// template < parameters >
@@ -2278,6 +2281,11 @@
AddOrdinaryNameResults(SemaCodeCompletion::ParserCompletionContext CCC,
Results.AddResult(Result("template", CodeCompletionResult::RK_Keyword));
}
+ if(SemaRef.getLangOpts().CPlusPlus20 &&
+ (CCC == SemaCodeCompletion::PCC_Template || CCC ==
SemaCodeCompletion::PCC_MemberTemplate)) {
+ Results.AddResult(Result("requires", CCP_Keyword));
+ }
+
AddStorageSpecifiers(CCC, SemaRef.getLangOpts(), Results);
AddFunctionSpecifiers(CCC, SemaRef.getLangOpts(), Results);
break;
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