Commit Graph

11 Commits

Author SHA1 Message Date
Johannes Altmanninger 2b955ffaed [clang-diff] Use the relative name for NamedDecl
Summary:
If a node referring to a name is within a class or namespace, do not use
the full qualified name, but strip the namespace prefix.

Reviewers: arphaman, bkramer

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36681

llvm-svn: 311433
2017-08-22 08:56:26 +00:00
Johannes Altmanninger 0dd86dc5f1 [clang-diff] Improve and test getNodeValue
Summary: Use qualified names if available.

Reviewers: arphaman

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36186

llvm-svn: 311292
2017-08-20 16:18:43 +00:00
Johannes Altmanninger 51321aef8e [clang-diff] Simplify mapping
Summary:
Until we find a decent heuristic on how to choose between multiple
identical trees, there is no point in supporting multiple mappings.

This also enables matching of nodes with parents of different types,
because there are many instances where this is appropriate.  For
example for and foreach statements; functions in the global or
other namespaces.

Reviewers: arphaman

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36183

llvm-svn: 311251
2017-08-19 17:53:01 +00:00
Johannes Altmanninger a29d6aeced [clang-diff] Add HTML side-by-side diff output
Reviewers: arphaman

Subscribers: mgorny

Differential Revision: https://reviews.llvm.org/D36182

llvm-svn: 311241
2017-08-19 15:40:45 +00:00
Johannes Altmanninger 683876ca6d [clang-diff] Make printing of matches optional
Reviewers: arphaman

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36181

llvm-svn: 311237
2017-08-19 12:04:04 +00:00
Johannes Altmanninger e0fe5cd4f3 Revert "Revert "[clang-diff] Move printing of matches and changes to clang-diff""
Fix build by renaming ChangeKind -> Change

This reverts commit 0c78c5729f29315d7945988efd048c0cb86c07ce.

llvm-svn: 311222
2017-08-19 02:56:35 +00:00
Vlad Tsyrklevich ebcb773f7d Revert "[clang-diff] Move printing of matches and changes to clang-diff"
This reverts commit r311200, it was causing widespread build failures.

llvm-svn: 311210
2017-08-18 23:21:10 +00:00
Johannes Altmanninger 69774d67c8 [clang-diff] Move printing of matches and changes to clang-diff
Summary:
This also changes the output order of the changes. Now the matches are
printed in pre-order, intertwined with insertions, updates, and moves.
Deletions are printed afterwards.

Reviewers: arphaman

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36179

llvm-svn: 311200
2017-08-18 21:26:34 +00:00
Johannes Altmanninger 849f20e4a2 [clang-diff] Add commandline arguments.
Summary:
Support command line options for build path and extra arguments
This emulates the options accepted by clang tools that use CommonOptionsParser.

Add a flag for controlling the maximum size parameter for bottom up matching.

Reviewers: arphaman

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36177

llvm-svn: 311173
2017-08-18 16:34:22 +00:00
Kuba Mracek 5b57633a45 [clang] Get rid of "%T" expansions
The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t.

This patch removes %T in clang.

Differential Revision: https://reviews.llvm.org/D36437

llvm-svn: 310950
2017-08-15 19:47:06 +00:00
Alex Lorenz a75b2cac71 [clang-diff] Add initial implementation
This is the first commit for the "Clang-based C/C++ diff tool" GSoC project.

ASTDiff is a new library that computes a structural AST diff between two ASTs
using the gumtree algorithm. Clang-diff is a new Clang tool that will show
the structural code changes between different ASTs.

Patch by Johannes Altmanninger!

Differential Revision: https://reviews.llvm.org/D34329

llvm-svn: 308731
2017-07-21 12:49:28 +00:00