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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
e69c3fd978
The general strategy here is to import the constructor with a signature that directly matches the argument. The intent is that the imported function will eventually be usable directly as the `ImplicitAs.Convert` function in a generated `impl`. For initialization from a tuple, for example `(1, 2)`, we import the selected constructor with a signature that takes a tuple pattern: `fn Class.Class((a: i32, b: i32)) -> Class;` In order to support that, this PR also adds support in general for tuple patterns in function signatures. It turns out the implementation was already very close to allowing this. Assisted-by: Gemini 3 Pro via Antigravity
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/sem_ir/clang_decl.h"
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#include "clang/AST/DeclBase.h"
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#include "clang/AST/TextNodeDumper.h"
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#include "common/ostream.h"
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#include "common/raw_string_ostream.h"
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namespace Carbon::SemIR {
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auto ClangDeclKey::Print(llvm::raw_ostream& out) const -> void {
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RawStringOstream decl_stream;
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auto policy = decl->getASTContext().getPrintingPolicy();
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policy.TerseOutput = true;
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if (isa<clang::TranslationUnitDecl>(decl)) {
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decl_stream << "<translation unit>";
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} else {
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decl->print(decl_stream, policy);
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}
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if (signature.num_params != -1) {
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out << "{decl: \"" << FormatEscaped(decl_stream.TakeStr()) << "\", kind: ";
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switch (signature.kind) {
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case ClangDeclKey::Signature::Normal:
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out << "normal";
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break;
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case ClangDeclKey::Signature::TuplePattern:
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out << "tuple";
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break;
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}
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out << ", num_params: " << signature.num_params << "}";
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} else {
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out << "\"" << FormatEscaped(decl_stream.TakeStr()) << "\"";
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}
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}
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auto ClangDecl::Print(llvm::raw_ostream& out) const -> void {
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out << "{key: " << key << ", inst_id: " << inst_id << "}";
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}
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} // namespace Carbon::SemIR
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