1 //===-- FormatManager.h -----------------------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #ifndef lldb_FormatManager_h_
10 #define lldb_FormatManager_h_
13 #include <initializer_list>
18 #include "lldb/lldb-enumerations.h"
19 #include "lldb/lldb-public.h"
21 #include "lldb/DataFormatters/FormatCache.h"
22 #include "lldb/DataFormatters/FormatClasses.h"
23 #include "lldb/DataFormatters/FormattersContainer.h"
24 #include "lldb/DataFormatters/LanguageCategory.h"
25 #include "lldb/DataFormatters/TypeCategory.h"
26 #include "lldb/DataFormatters/TypeCategoryMap.h"
28 namespace lldb_private {
30 // this file (and its. cpp) contain the low-level implementation of LLDB Data
31 // Visualization class DataVisualization is the high-level front-end of this
32 // feature clients should refer to that class as the entry-point into the data
33 // formatters unless they have a good reason to bypass it and prefer to use
34 // this file's objects directly
36 class FormatManager : public IFormatChangeListener {
37 typedef FormatMap<ConstString, TypeSummaryImpl> NamedSummariesMap;
38 typedef TypeCategoryMap::MapType::iterator CategoryMapIterator;
41 typedef std::map<lldb::LanguageType, LanguageCategory::UniquePointer>
46 ~FormatManager() override = default;
48 NamedSummariesMap &GetNamedSummaryContainer() {
49 return m_named_summaries_map;
53 EnableCategory(ConstString category_name,
54 TypeCategoryMap::Position pos = TypeCategoryMap::Default) {
55 EnableCategory(category_name, pos,
56 std::initializer_list<lldb::LanguageType>());
59 void EnableCategory(ConstString category_name,
60 TypeCategoryMap::Position pos, lldb::LanguageType lang) {
61 std::initializer_list<lldb::LanguageType> langs = {lang};
62 EnableCategory(category_name, pos, langs);
65 void EnableCategory(ConstString category_name,
66 TypeCategoryMap::Position pos = TypeCategoryMap::Default,
67 std::initializer_list<lldb::LanguageType> langs = {}) {
68 TypeCategoryMap::ValueSP category_sp;
69 if (m_categories_map.Get(category_name, category_sp) && category_sp) {
70 m_categories_map.Enable(category_sp, pos);
71 for (const lldb::LanguageType lang : langs)
72 category_sp->AddLanguage(lang);
76 void DisableCategory(ConstString category_name) {
77 m_categories_map.Disable(category_name);
81 EnableCategory(const lldb::TypeCategoryImplSP &category,
82 TypeCategoryMap::Position pos = TypeCategoryMap::Default) {
83 m_categories_map.Enable(category, pos);
86 void DisableCategory(const lldb::TypeCategoryImplSP &category) {
87 m_categories_map.Disable(category);
90 void EnableAllCategories();
92 void DisableAllCategories();
94 bool DeleteCategory(ConstString category_name) {
95 return m_categories_map.Delete(category_name);
98 void ClearCategories() { return m_categories_map.Clear(); }
100 uint32_t GetCategoriesCount() { return m_categories_map.GetCount(); }
102 lldb::TypeCategoryImplSP GetCategoryAtIndex(size_t index) {
103 return m_categories_map.GetAtIndex(index);
106 void ForEachCategory(TypeCategoryMap::ForEachCallback callback);
108 lldb::TypeCategoryImplSP GetCategory(const char *category_name = nullptr,
109 bool can_create = true) {
111 return GetCategory(m_default_category_name);
112 return GetCategory(ConstString(category_name));
115 lldb::TypeCategoryImplSP GetCategory(ConstString category_name,
116 bool can_create = true);
118 lldb::TypeFormatImplSP
119 GetFormatForType(lldb::TypeNameSpecifierImplSP type_sp);
121 lldb::TypeSummaryImplSP
122 GetSummaryForType(lldb::TypeNameSpecifierImplSP type_sp);
124 lldb::TypeFilterImplSP
125 GetFilterForType(lldb::TypeNameSpecifierImplSP type_sp);
127 lldb::ScriptedSyntheticChildrenSP
128 GetSyntheticForType(lldb::TypeNameSpecifierImplSP type_sp);
130 lldb::TypeValidatorImplSP
131 GetValidatorForType(lldb::TypeNameSpecifierImplSP type_sp);
133 lldb::TypeFormatImplSP GetFormat(ValueObject &valobj,
134 lldb::DynamicValueType use_dynamic);
136 lldb::TypeSummaryImplSP GetSummaryFormat(ValueObject &valobj,
137 lldb::DynamicValueType use_dynamic);
139 lldb::SyntheticChildrenSP
140 GetSyntheticChildren(ValueObject &valobj, lldb::DynamicValueType use_dynamic);
142 lldb::TypeValidatorImplSP GetValidator(ValueObject &valobj,
143 lldb::DynamicValueType use_dynamic);
146 AnyMatches(ConstString type_name,
147 TypeCategoryImpl::FormatCategoryItems items =
148 TypeCategoryImpl::ALL_ITEM_TYPES,
149 bool only_enabled = true, const char **matching_category = nullptr,
150 TypeCategoryImpl::FormatCategoryItems *matching_type = nullptr) {
151 return m_categories_map.AnyMatches(type_name, items, only_enabled,
152 matching_category, matching_type);
155 static bool GetFormatFromCString(const char *format_cstr,
156 bool partial_match_ok, lldb::Format &format);
158 static char GetFormatAsFormatChar(lldb::Format format);
160 static const char *GetFormatAsCString(lldb::Format format);
162 // if the user tries to add formatters for, say, "struct Foo" those will not
163 // match any type because of the way we strip qualifiers from typenames this
164 // method looks for the case where the user is adding a
165 // "class","struct","enum" or "union" Foo and strips the unnecessary
167 static ConstString GetValidTypeName(ConstString type);
169 // when DataExtractor dumps a vectorOfT, it uses a predefined format for each
170 // item this method returns it, or eFormatInvalid if vector_format is not a
172 static lldb::Format GetSingleItemFormat(lldb::Format vector_format);
174 // this returns true if the ValueObjectPrinter is *highly encouraged* to
175 // actually represent this ValueObject in one-liner format If this object has
176 // a summary formatter, however, we should not try and do one-lining, just
177 // let the summary do the right thing
178 bool ShouldPrintAsOneLiner(ValueObject &valobj);
180 void Changed() override;
182 uint32_t GetCurrentRevision() override { return m_last_revision; }
184 static FormattersMatchVector
185 GetPossibleMatches(ValueObject &valobj, lldb::DynamicValueType use_dynamic) {
186 FormattersMatchVector matches;
187 GetPossibleMatches(valobj, valobj.GetCompilerType(),
188 lldb_private::eFormatterChoiceCriterionDirectChoice,
189 use_dynamic, matches, false, false, false, true);
193 static ConstString GetTypeForCache(ValueObject &, lldb::DynamicValueType);
195 LanguageCategory *GetCategoryForLanguage(lldb::LanguageType lang_type);
197 static std::vector<lldb::LanguageType>
198 GetCandidateLanguages(lldb::LanguageType lang_type);
201 static std::vector<lldb::LanguageType>
202 GetCandidateLanguages(ValueObject &valobj);
204 static void GetPossibleMatches(ValueObject &valobj,
205 CompilerType compiler_type, uint32_t reason,
206 lldb::DynamicValueType use_dynamic,
207 FormattersMatchVector &entries,
208 bool did_strip_ptr, bool did_strip_ref,
209 bool did_strip_typedef,
210 bool root_level = false);
212 std::atomic<uint32_t> m_last_revision;
213 FormatCache m_format_cache;
214 std::recursive_mutex m_language_categories_mutex;
215 LanguageCategories m_language_categories_map;
216 NamedSummariesMap m_named_summaries_map;
217 TypeCategoryMap m_categories_map;
219 ConstString m_default_category_name;
220 ConstString m_system_category_name;
221 ConstString m_vectortypes_category_name;
223 lldb::TypeFormatImplSP GetHardcodedFormat(FormattersMatchData &);
225 lldb::TypeSummaryImplSP GetHardcodedSummaryFormat(FormattersMatchData &);
227 lldb::SyntheticChildrenSP
228 GetHardcodedSyntheticChildren(FormattersMatchData &);
230 lldb::TypeValidatorImplSP GetHardcodedValidator(FormattersMatchData &);
232 TypeCategoryMap &GetCategories() { return m_categories_map; }
234 // These functions are meant to initialize formatters that are very low-
235 // level/global in nature and do not naturally belong in any language. The
236 // intent is that most formatters go in language-specific categories.
237 // Eventually, the runtimes should also be allowed to vend their own
238 // formatters, and then one could put formatters that depend on specific
239 // library load events in the language runtimes, on an as-needed basis
240 void LoadSystemFormatters();
242 void LoadVectorFormatters();
244 friend class FormattersMatchData;
247 } // namespace lldb_private
249 #endif // lldb_FormatManager_h_