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llvm-project/lldb/source/DataFormatters/FormatClasses.cpp

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<rdar://problem/12978143> Data formatters now cache themselves. This commit provides a new formatter cache mechanism. Upon resolving a formatter (summary or synthetic), LLDB remembers the resolution for later faster retrieval. Also moved the data formatters subsystem from the core to its own group and folder for easier management, and done some code reorganization. The ObjC runtime v1 now returns a class name if asked for the dynamic type of an object. This is required for formatters caching to work with the v1 runtime. Lastly, this commit disposes of the old hack where ValueObjects had to remember whether they were queried for formatters with their static or dynamic type. Now the ValueObjectDynamicValue class works well enough that we can use its dynamic value setting for the same purpose. llvm-svn: 173728
2013-01-29 07:47:25 +08:00
//===-- FormatClasses.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
<rdar://problem/15530080> Rework data formatters matching algorithm What happens now is that, for each category, the FormatNavigator generates all possible matches, and checks them one by one Since the possible matches do not actually depend on the category (whether a match is accepted or not does, but that check can be shifted at a more convenient time), it is actually feasible to generate every possible match upfront and then let individual categories just scan through those This commit changes things by introducing a notion of formatters match candidate, and shifting responsibility for generating all of them given a (ValueObject,DynamicValueType) pair from the FormatNavigator back to the FormatManager A list of these candidates is then passed down to each category for matching Candidates also need to remember whether they were generated by stripping pointers, references, typedefs, since this is something that individual formatters can choose to reject This check, however, is conveniently only done once a "textual" match has been found, so that the list of candidates is truly category-independent While the performance benefit is small (mostly, due to caching), this is much cleaner from a design perspective llvm-svn: 195395
2013-11-22 08:02:13 +08:00
#include "lldb/DataFormatters/FormatClasses.h"
<rdar://problem/12978143> Data formatters now cache themselves. This commit provides a new formatter cache mechanism. Upon resolving a formatter (summary or synthetic), LLDB remembers the resolution for later faster retrieval. Also moved the data formatters subsystem from the core to its own group and folder for easier management, and done some code reorganization. The ObjC runtime v1 now returns a class name if asked for the dynamic type of an object. This is required for formatters caching to work with the v1 runtime. Lastly, this commit disposes of the old hack where ValueObjects had to remember whether they were queried for formatters with their static or dynamic type. Now the ValueObjectDynamicValue class works well enough that we can use its dynamic value setting for the same purpose. llvm-svn: 173728
2013-01-29 07:47:25 +08:00
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
using namespace lldb;
using namespace lldb_private;