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2017-09-21Rename CFX_RetainPtr to RetainPtrDan Sinclair
This CL renames CFX_RetainPtr to RetainPtr and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: I8798a9f79cb0840d3f037e8d04937cedd742914e Reviewed-on: https://pdfium-review.googlesource.com/14616 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Move CFX_Observable to ObservableDan Sinclair
This CL renames CFX_Observable to Observable and moves into the fxcrt namespace. The test suite names were updated to ObservedPtr from fxcrt. Bug: pdfium:898 Change-Id: Ia507482bc0a1d6d8bbf12c0c55c4a88f6c8910e2 Reviewed-on: https://pdfium-review.googlesource.com/14615 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Rename CXFA_DefFontMgr to CFGAS_DefaultFontManagerDan Sinclair
This CL removes any XFA requirements on the default font manager and moves it to the fgas/ directory. Some helper methods from CXFA_FontMgr are moved into the fgas/fgas_fontutils.h files. Change-Id: I17ba8dc2bd60085c17d8a3328f6625675a82787f Reviewed-on: https://pdfium-review.googlesource.com/14570 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Move CXFA_PDFFontMgr to CFGAS_PDFFontMgrDan Sinclair
XFA bits passed into the PDFFontMgr are just used to get the CPDF_Document and the CFGAS_FontMgr. This CL changes the code to pass those two things into the constructor. Then, the fxfa/cxfa_pdffontmgr.* code has been moved to fgas/cfgas_pdffontmgr.* to show it doesn't depend on any of the XFA classes. Change-Id: I21d791869e2a32ffedfd7c87bb3bbd035232d991 Reviewed-on: https://pdfium-review.googlesource.com/14550 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-18Remove some unused variables.Lei Zhang
BUG=chromium:760070 Change-Id: Icb2e46da86b6b7e71dae309a015ae1c5301fc931 Reviewed-on: https://pdfium-review.googlesource.com/14230 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-09-18Convert string class namesRyan Harrison
Automated using git grep & sed. Replace StringC classes with StringView classes. Remove the CFX_ prefix and put string classes in fxcrt namespace. Change AsStringC() to AsStringView(). Rename tests from TEST(fxcrt, *String*Foo) to TEST(*String*, Foo). Couple of tests needed to have their names regularlized. BUG=pdfium:894 Change-Id: I7ca038685c8d803795f3ed02545124f7a224c83d Reviewed-on: https://pdfium-review.googlesource.com/14151 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-15Make static const char* arrays more const.Lei Zhang
Change-Id: I87b5e6cefe973b82b4868e56fc5285c95c53a12b Reviewed-on: https://pdfium-review.googlesource.com/12550 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-09-13Add readme files to some directories.chromium/3215Henrique Nakashima
Change-Id: I2a750c8e46b68dc4870e2dadd2ed3429008e1562 Reviewed-on: https://pdfium-review.googlesource.com/13551 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-09-06Convert FX_STRSIZE int->size_tRyan Harrison
Change the underlying type for FX_STRSIZE to size_t from int. This will make the value unsigned and thus all values in the range of the type will be valid. This allows for the final remove of negative length strings, but also introduces a some casting and functional errors, since many parts of the code base assume that FX_STRSIZE is int or another signed type. This also CL fixes these errors. BUG=pdfium:828 Change-Id: I231dca59e96fc9330cbb099eecbdfc41fcf86f5b Reviewed-on: https://pdfium-review.googlesource.com/11830 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-05Split fx_ucd.h into fx_unicode.h and fx_ucddata.h.Tom Sepez
File naming now matches. Fix one usage not going through the accessor function. Change-Id: I5cc4986238764964f2a71807a94bd2facf517263 Reviewed-on: https://pdfium-review.googlesource.com/12930 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-31Cleanup fx_basic_* filesDan Sinclair
Remove dead code, move code to namespaces where possible, cleanup some single use items. Change-Id: Ia734477ceb2105a1ed272463bd8220f1205a7ce9 Reviewed-on: https://pdfium-review.googlesource.com/12732 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-31More BIDI code shufflingchromium/3206chromium/3205Dan Sinclair
Change-Id: I6df7e7d1283541ea2e6b9bcf3de172f6a886054a Reviewed-on: https://pdfium-review.googlesource.com/12731 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-31Move bidi code to fx_bidiDan Sinclair
This CL moves the BIDI code from fx_arabic to fx_bidi and conditionally compiles based on XFA. Change-Id: Iaba60486f03e48f0816d60e365a58a8622bc8254 Reviewed-on: https://pdfium-review.googlesource.com/12713 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-31Remove fx_basic.hDan Sinclair
This CL removes the fx_basic.h header and fixes up includes as needed. Change-Id: I49af32a8327bdbcda40c50a61ffbd75d06609040 Reviewed-on: https://pdfium-review.googlesource.com/12670 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-30Rebuild CFDE_TextEditEngine.Dan Sinclair
This CL rebuilds the text edit engine in a simpler fashion. Instead of depending on multiple pages, paragraphs and buffer fields there is a single text edit engine which contains a gap buffer. This makes the code easier to understand and follow. Change-Id: I10fe85603fa9ed15a647eaac2d931f113cd0c7b0 Reviewed-on: https://pdfium-review.googlesource.com/11990 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-08-28Add a global font loader in XFA testsDan Sinclair
This CL creates a global font loader for use in XFA tests. This is needed because the CFGAS_FontMangaer takes a linearly increasing amount of time to load fonts each time it's loaded. This can get excessively slow for test suites which run a lot of tests. Change-Id: Ie389844b56598ce414f4f761654fa4ed465955fd Reviewed-on: https://pdfium-review.googlesource.com/12090 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-28Remove code which does nothingDan Sinclair
This code will just add 0 to x and subtract 0 from y. Doing nothing. Remove. Change-Id: I6e0aa91d088acd49cb83d4bded29908b544b692b Reviewed-on: https://pdfium-review.googlesource.com/12110 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-08-23Convert string Find methods to return an OptionalRyan Harrison
The Find and ReverseFind methods for WideString, WideStringC, ByteString, and ByteStringC have been converted from returning a raw FX_STRSIZE, to returning Optional<FX_STRSIZE>, so that success/failure can be indicated without using FX_STRNPOS. This allows for removing FX_STRNPOS and by association makes the conversion of FX_STRSIZE to size_t easier, since it forces checking the return value of Find to be explictly done as well as taking the error value out of the range of FX_STRSIZE. New Contains methods have been added for cases where the success or failure is all the call site to Find cared about, and the actual position was ignored. BUG=pdfium:828 Change-Id: Id827e508c8660affa68cc08a13d96121369364b7 Reviewed-on: https://pdfium-review.googlesource.com/11350 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-08-17Remove redundant members in CFDE_TxtEdtEngineDan Sinclair
This CL removes a bunch of redundant members from the text edit engine. The change information tracking was removed as most of it was unused or was used inconsistently. Change-Id: I92460594e46accff0b78e1183c8574fc83ce728a Reviewed-on: https://pdfium-review.googlesource.com/11275 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-15Remove default params from xfa/fde code.Dan Sinclair
This CL removes the default params from methods in xfa/fde. Change-Id: Ide93a51430c62753656b9e9c0bcd842d8179aa3c Reviewed-on: https://pdfium-review.googlesource.com/10952 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-02Rewrite how string Insert() methods handle out of bound indicesRyan Harrison
The existing behaviour was to clamp the provided index to the valid bounds. This would lead to programming errors being hidden, since inserting would still do something even if the index calculation was wrong. The behaviour of these methods has been changed to instead early return when this occurs, returning the old length value. The caller can check if the call to Insert actually did anything by comparing the returned value to the length before calling insert. All of the existing calls to Insert have been tested by running all of the tests with asserts in the Insert method to check the index is in bounds. Additionally the call sites have been manually inspected. The majority of them are of the form Insert(0, foo) and the rest tend to be in a loop advancing from 0 to length. Convenience methods InsertAtFront/InsertAtBack have been added to handle calling Insert when the intent is for the character to be added to the beginning or end of the string. Existing call sites to Insert that do this have been converted. This work was originally being performed to check if there would be any issues in these methods with making FX_STRSIZE unsigned. BUG=pdfium:828 Change-Id: I60cee5ad45338aa8ed46569de7bcc78a76db18f7 Reviewed-on: https://pdfium-review.googlesource.com/9870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-01Encapsulate some CFX_Char members.Lei Zhang
Change-Id: Iab34de5858ae06582023be220ef7dd0d1d0a91c9 Reviewed-on: https://pdfium-review.googlesource.com/9530 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-08-01Replace raw value for constant error value in string operationsRyan Harrison
Currently Find() and other methods that return a FX_STRSIZE return -1 to indicate error/failure. This means that there is a lot of magic numbers and magic checks floating around. The standard library for similar operations uses a npos constant. This CL implements FX_STRNPOS, and replaces usages of magic number checking. It also does some type cleanup along the way where it was obvious that FX_STRSIZE should be being used. Removing the magic numbers should make eventually changing FX_STRSIZE to be unsigned easier in the future. BUG=pdfium:828 Change-Id: I67e481e44cf2f75a1698afa8fbee4f375a74c490 Reviewed-on: https://pdfium-review.googlesource.com/9651 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-28Use FX_GetUnicodeProperties() in more places.chromium/3173chromium/3172chromium/3171Lei Zhang
Instead of accessing the raw kTextLayoutCodeProperties data. Change-Id: Ie39cf5c098e1564ae2f18d76b234af42f24db4ca Reviewed-on: https://pdfium-review.googlesource.com/9451 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-07-28Remove unused param from CFX_TxtBreak::AppendChar_PageLoad().Lei Zhang
Change-Id: Ie4bf8100aca9d22e07406a9479c9ff891c953fe8 Reviewed-on: https://pdfium-review.googlesource.com/9450 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-07-28Convert calls to Mid() to Left() or Right() if possibleRyan Harrison
The various string/byte classes support Mid(), Left(), and Right() for extracting substrings. Mid() can handle all possible cases, but Left() and Right() are useful for common cases and more explicit about what is going on. Calls like Mid(offset, length - offset) can be converted to Right(length - offset). Calls like Mid(0, length) can be converted to Left(length). If the substring being extracted does not extend all the way to one of the edges of the string, then Mid() still needs to be used. BUG=pdfium:828 Change-Id: I2ec46ad3d71aac0f7b513e103c69cbe8c854cf62 Reviewed-on: https://pdfium-review.googlesource.com/9510 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-27Simplify FX_GetMirrorChar() code.Lei Zhang
Change-Id: I43ec0d4a3b60d51c59ba5a540dfe24803e725089 Reviewed-on: https://pdfium-review.googlesource.com/9170 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-07-24Move xfa/fxfa/app to xfa/fxfachromium/3166Dan Sinclair
There currently exists a weird split where some files exist in xfa/fxfa and some files exist in xfa/fxfa/app. This CL removes the app/ folder and moves all files up to the parent directory. Change-Id: I00c87851a1ebc5a7a636eb9a17b58ba3f1708a84 Reviewed-on: https://pdfium-review.googlesource.com/8810 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-19Rename StringCs c_str() to unterminated_c_str().Tom Sepez
Since there is no guarantee of termination if the StringC was extracted from a snippet of another string. Make it more obvious that things like strlen(str.unterminated_c_str()) might be a bad idea. Change-Id: I7832248ed89ebbddf5c0bcd402aac7d40ec2adc2 Reviewed-on: https://pdfium-review.googlesource.com/8170 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-06-26Adding back the CFX_DateTime print helpers.Henrique Nakashima
Change-Id: I23fe37139ed06a7e09f6a39ea833a6a984add49e Reviewed-on: https://pdfium-review.googlesource.com/6913 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-23Cleaning up fx_string_testhelpers.Henrique Nakashima
This is unused except for being a pathway for indirect deps. Change-Id: I717290235ccbc59429ad24231033382958e2a086 Reviewed-on: https://pdfium-review.googlesource.com/6910 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-06-22Add a |gGeneralPartitionAllocator| and use it in the |FX_*Alloc| wrappers.chromium/3142chromium/3141chromium/3140chromium/3139Chris Palmer
BUG=pdfium:690 Change-Id: I922279e4bdc8b411f47f49798155e8f9118c1396 Reviewed-on: https://pdfium-review.googlesource.com/6552 Commit-Queue: Chris Palmer <palmer@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-06-13Add CFGAS_FormatString helper to extract digits.Dan Sinclair
This CL adds ExtractCountDigits and ExtractCountDigitsWithOptional to cleanup the digit extraction code. Change-Id: I6c3f4b435ec41b429b18cd9af9be46551a7fa391 Reviewed-on: https://pdfium-review.googlesource.com/6391 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-06-08CFGAS_FormatString use helper to convert char to intDan Sinclair
This CL updates CFGAS_FormatString to use the FXSYS_DecimalCharToInt helper instead of doing the conversion itself. Change-Id: Ia5b0f0c008a815b4cf25e59281357285005a7ab0 Reviewed-on: https://pdfium-review.googlesource.com/6412 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-06-08Add CFGAS_FormatString Number to String helperDan Sinclair
This CL adds a small helper to convert a number to a string with a given number of leading digits. Change-Id: I689c0d1ab9d35341f923ac7b72ed5a96bce6b868 Reviewed-on: https://pdfium-review.googlesource.com/6411 Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-08Combine more CFGAS_FormatString codeDan Sinclair
This CL continues combining CFGAS_FormatString code chunks which are very similar. Change-Id: Ie2d41ce4c9cc82716daafbe346d0e71ba971f2bc Reviewed-on: https://pdfium-review.googlesource.com/6410 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-07Remove use of FXBSTR_ID from CFGAS_FormatStringchromium/3124Dan Sinclair
This CL removes the use of FXBSTR_ID and uses CFX_WideString comparisons instead. This makes the code a bit clearer as to what is being compared. Change-Id: I933bd1d7c98800ac80849d6f4d3179dd342f6270 Reviewed-on: https://pdfium-review.googlesource.com/6371 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-07Simplify some CFGAS_FormatString methodsDan Sinclair
This CL combines the similar format strings together and checks for the ' 's conditionally where needed. Change-Id: I46b2227c9d76ba66c8526c6597684e4b47301bde Reviewed-on: https://pdfium-review.googlesource.com/6370 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-07Fix some CFGAS_FormatString issuesDan Sinclair
This CL fixes the solar days calculation for months after August. Simplifies the minute rounding method. Change-Id: I5f335338ecac911ef0ab57602f41bb98c6f9fa6c Reviewed-on: https://pdfium-review.googlesource.com/6331 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-06-07Even more CFGAS_FormatString tests.Dan Sinclair
Change-Id: Ied2a169a3e7e9b178d746b04c67286d7a51fa635 Reviewed-on: https://pdfium-review.googlesource.com/6330 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-06-06Convert CFGAS_FormatString to pointer out parameterschromium/3123Dan Sinclair
This CL changes all CFGAS_FormatString methods to use pointer out paramters instead of reference out parameters. Change-Id: Ic5b57f30e4be09233898b8f4e06f908a96afedc8 Reviewed-on: https://pdfium-review.googlesource.com/6272 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-06-06More CFGAS_FormatString testsDan Sinclair
This CL adds tests for the numeric, text, null and zero parsing and formatting methods. Change-Id: I0a35de105fd631598a7885c4bbbd1c2abbbd4260 Reviewed-on: https://pdfium-review.googlesource.com/6271 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-06Add more CFGAS_FormatString tests.Dan Sinclair
This CL adds some more time tests for CFGAS_FormatString. Change-Id: Ida7d9e665f304b984508ff3b404e7ea9c38ef415 Reviewed-on: https://pdfium-review.googlesource.com/6270 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-05More CFGAS_FormatString testsDan Sinclair
This CL adds more tests for various CFGAS_FormatString methods. A few bugs are fixed up along the way. Change-Id: Ida1f2792d1bd72f4f52b3c7cc1ff0022b6f45fda Reviewed-on: https://pdfium-review.googlesource.com/6179 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-06-05Add start of CFGAS_FormatString testsDan Sinclair
This CL adds tests for the date parsing and formatting code in CFGAS_FormatString. Change-Id: I9989cdd1b3f92c90d46ee2c3f7838fe1de255be2 Reviewed-on: https://pdfium-review.googlesource.com/6178 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-06-05Cleaning up some XFA locale related codeDan Sinclair
This CL removes some unused locale related code and formats other bits. Change-Id: I172fc16a634a8982c00bfaf84fdcd4cd277eb36d Reviewed-on: https://pdfium-review.googlesource.com/6077 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-06-01Remove unused Locale codeDan Sinclair
This CL removes unused code from CFGAS_FormatString and CXFA_LocaleValue. Change-Id: I87a996231b3ad3770508be362456c435034b229c Reviewed-on: https://pdfium-review.googlesource.com/6177 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-20Use observed ptrs from CFGAS_GEFont back to its font mgrs.chromium/3106Tom Sepez
CFGAS_GEFonts are ref counted, and its a good thing since they are managed by at least three different font managers: CFGAS_FontMgr, CXFA_PDFFontMgr, and CXFA_FontMgr. None of these have a clear claim to ownership of the CFGAS_GEFont. CFGAS_GEFont has back-pointers to two of these, CFGAS_FontMgr, and CXFA_PDFFontMgr, and they could each outlive the other. Thus the font needs to watch for destruction of either of its managers, so as to stop using it after its gone. Bug: 724640 Change-Id: I907ec35e300e11e532e13545d51fb200ac86b4f9 Reviewed-on: https://pdfium-review.googlesource.com/5735 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-19Move CCodec_ModuleMgr ownership to CPDF_ModuleMgr.Lei Zhang
More straight forward than CFX_GEModule owning in and CPDF_ModuleMgr holding a pointer to it. Remove assumptions that the codec modules may return nullptr, and do IWYU. Change-Id: Iba7fc3c7ec223fd6d29a1ab74ed13d35689bc5d5 Reviewed-on: https://pdfium-review.googlesource.com/5654 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-16Introduce CFX_UnownedPtr to detect lifetime inversion issues.Tom Sepez
There are places where an object "child" has a raw pointer back to object "owner" with the understanding that owner will always outlive child. Violating this constraint can lead to use after free, but this requires finding two paths: one that frees the objects in the wrong order, and one that uses the object after the free. The purpose of this patch is to detect the constraint violation even when the second path is not hit. We create a template that is used in place of TYPE*. It's dtor, when a memory tool is present, goes out and probes the first byte of the object to which it points. Used in "child", this allows the memory tool to prove that the "owner" is still alive at the time the child is destroyed, and hence the constraint is never violated. Change-Id: I2a6d696d51dda4a79ee2f00a6752965e058a6417 Reviewed-on: https://pdfium-review.googlesource.com/5475 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
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