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f7406e6c3c
Protocol requirements may not necessarily add new entries to the witness table if it's inherited from super protocol. This patch teaches the json dump to include a flag indicating whether a protocol requirement requires new witness table entry and diagnoses the change of such flag as ABI breakages. rdar://47657204
124 lines
4.3 KiB
C++
124 lines
4.3 KiB
C++
//===--- ModuleDiagsConsumer.cpp - Print module differ diagnostics --*- C++ -*-===//
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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) 2014 - 2017 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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//
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// This file implements the ModuleDifferDiagsConsumer class, which displays
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// diagnostics from the module differ as text to an output.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/AST/DiagnosticEngine.h"
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#include "swift/AST/DiagnosticsModuleDiffer.h"
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#include "ModuleDiagsConsumer.h"
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using namespace swift;
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namespace {
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// Reproduce the DiagIDs, as we want both the size and access to the raw ids
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// themselves.
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enum LocalDiagID : uint32_t {
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#define DIAG(KIND, ID, Options, Text, Signature) ID,
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#include "swift/AST/DiagnosticsAll.def"
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NumDiags
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};
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static StringRef getCategoryName(uint32_t ID) {
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switch(ID) {
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case LocalDiagID::removed_decl:
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case LocalDiagID::removed_setter:
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return "/* Removed Decls */";
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case LocalDiagID::moved_decl:
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case LocalDiagID::decl_kind_changed:
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return "/* Moved Decls */";
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case LocalDiagID::renamed_decl:
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return "/* Renamed Decls */";
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case LocalDiagID::decl_attr_change:
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case LocalDiagID::decl_new_attr:
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case LocalDiagID::var_let_changed:
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case LocalDiagID::func_self_access_change:
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return "/* Decl Attribute changes */";
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case LocalDiagID::default_arg_removed:
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case LocalDiagID::decl_type_change:
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case LocalDiagID::func_type_escaping_changed:
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case LocalDiagID::param_ownership_change:
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case LocalDiagID::type_witness_change:
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return "/* Type Changes */";
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case LocalDiagID::raw_type_change:
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return "/* RawRepresentable Changes */";
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case LocalDiagID::generic_sig_change:
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return "/* Generic Signature Changes */";
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case LocalDiagID::decl_added:
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case LocalDiagID::decl_reorder:
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case LocalDiagID::var_has_fixed_order_change:
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case LocalDiagID::func_has_fixed_order_change:
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return "/* Fixed-layout Type Changes */";
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case LocalDiagID::conformance_added:
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case LocalDiagID::conformance_removed:
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case LocalDiagID::optional_req_changed:
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return "/* Protocol Conformance Change */";
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case LocalDiagID::default_associated_type_removed:
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case LocalDiagID::protocol_req_added:
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case LocalDiagID::decl_new_witness_table_entry:
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return "/* Protocol Requirement Change */";
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case LocalDiagID::super_class_removed:
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case LocalDiagID::super_class_changed:
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case LocalDiagID::no_longer_open:
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return "/* Class Inheritance Change */";
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default:
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return StringRef();
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}
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}
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}
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swift::ide::api::
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ModuleDifferDiagsConsumer::ModuleDifferDiagsConsumer(bool DiagnoseModuleDiff,
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llvm::raw_ostream &OS):
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PrintingDiagnosticConsumer(OS), OS(OS),
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DiagnoseModuleDiff(DiagnoseModuleDiff) {
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#define DIAG(KIND, ID, Options, Text, Signature) \
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auto ID = getCategoryName(LocalDiagID::ID); \
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assert(!ID.empty()); \
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AllDiags[ID] = std::set<std::string>();
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#include "swift/AST/DiagnosticsModuleDiffer.def"
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}
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void swift::ide::api::
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ModuleDifferDiagsConsumer::handleDiagnostic(SourceManager &SM, SourceLoc Loc,
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DiagnosticKind Kind,
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StringRef FormatString,
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ArrayRef<DiagnosticArgument> FormatArgs,
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const DiagnosticInfo &Info) {
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auto Category = getCategoryName((uint32_t)Info.ID);
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if (Category.empty()) {
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PrintingDiagnosticConsumer::handleDiagnostic(SM, Loc, Kind, FormatString,
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FormatArgs, Info);
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return;
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}
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if (!DiagnoseModuleDiff)
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return;
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llvm::SmallString<256> Text;
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{
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llvm::raw_svector_ostream Out(Text);
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DiagnosticEngine::formatDiagnosticText(Out, FormatString, FormatArgs);
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}
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AllDiags[Category].insert(Text.str().str());
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}
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swift::ide::api::ModuleDifferDiagsConsumer::~ModuleDifferDiagsConsumer() {
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for (auto &Pair: AllDiags) {
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OS << "\n";
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OS << Pair.first << "\n";
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for (auto &Item: Pair.second) {
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OS << Item << "\n";
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}
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}
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}
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