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89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
//===--- SignatureHelp.cpp ------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2025 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/IDE/SignatureHelp.h"
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#include "ReadyForTypeCheckingCallback.h"
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#include "swift/IDE/ArgumentCompletion.h"
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#include "swift/Sema/IDETypeChecking.h"
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using namespace swift;
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using namespace swift::ide;
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using namespace swift::constraints;
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namespace {
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class SignatureHelpCallbacks : public CodeCompletionCallbacks,
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public ReadyForTypeCheckingCallback {
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SignatureHelpConsumer &Consumer;
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SourceLoc Loc;
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CodeCompletionExpr *CCExpr = nullptr;
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DeclContext *CurDeclContext = nullptr;
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public:
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SignatureHelpCallbacks(Parser &P, SignatureHelpConsumer &Consumer)
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: CodeCompletionCallbacks(P), Consumer(Consumer) {}
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// Only handle callbacks for argument completions.
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// {
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void completeCallArg(CodeCompletionExpr *E) override;
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// }
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void readyForTypeChecking(SourceFile *SrcFile) override;
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};
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void SignatureHelpCallbacks::completeCallArg(CodeCompletionExpr *E) {
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CurDeclContext = P.CurDeclContext;
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CCExpr = E;
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}
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void SignatureHelpCallbacks::readyForTypeChecking(SourceFile *SrcFile) {
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if (!CCExpr)
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return;
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ArgumentTypeCheckCompletionCallback Lookup(CCExpr, CurDeclContext);
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{
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llvm::SaveAndRestore<TypeCheckCompletionCallback *> CompletionCollector(
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Context.CompletionCallback, &Lookup);
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swift::typeCheckASTNodeAtLoc(
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TypeCheckASTNodeAtLocContext::declContext(CurDeclContext),
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CCExpr->getLoc());
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}
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SignatureHelpResult Result(CurDeclContext);
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Lookup.getSignatures(CCExpr->getLoc(), CurDeclContext, Result.Signatures);
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Consumer.handleResult(Result);
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}
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} // anonymous namespace.
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IDEInspectionCallbacksFactory *
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swift::ide::makeSignatureHelpCallbacksFactory(SignatureHelpConsumer &Consumer) {
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// CC callback factory which produces 'SignatureCallbacks'.
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class SignatureHelpCallbacksFactoryImpl
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: public IDEInspectionCallbacksFactory {
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SignatureHelpConsumer &Consumer;
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public:
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SignatureHelpCallbacksFactoryImpl(SignatureHelpConsumer &Consumer)
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: Consumer(Consumer) {}
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Callbacks createCallbacks(Parser &P) override {
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auto Callback = std::make_shared<SignatureHelpCallbacks>(P, Consumer);
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return {Callback, Callback};
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}
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};
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return new SignatureHelpCallbacksFactoryImpl(Consumer);
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}
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