mirror of
git://sourceware.org/git/libabigail.git
synced 2024-12-15 14:34:38 +00:00
9cf76b1175
This function is used to determine whether or not type differences are
"local" and is primarily used in --leaf-changes-only mode. The logic
has some issues which are addressed by this patch:
- Any number of points-to (*) and refers-to (& and &&) components
are peeled off the types being compared, rather than checking
these match in number and kind.
- This peeling is done with peel_typedef_pointer_or_reference_type
which also peels any number of CV qualifiers (OK) and
array-of ([N]) type components (not OK).
- The function sets a state variable (was_indirect_type) to modify
the behaviour of downstream comparisons, but this cannot be
passed through recursive calls.
The effect of the indirect_type flag is to switch to comparisons by
name: identically named structs don't get introspected. Arguably, a
more useful behaviour for --leaf-changes-only mode would be to treat
any change to a named type as non-local, except in the context of the
definition of that type itself. This would be a more significant
change in behaviour.
* include/abg-fwd.h (types_have_similar_structure): In both
overloads, add an indirect_type argument, defaulting to
false.
* src/abg-ir.cc (reference_type_def constructor): Tabify.
(types_have_similar_structure): In both overloads, add an
indirect_type argument and update documentation text. In the
type_base_sptr overload, pass indirect_type in the tail
call. In the type_base* overload, replace was_indirect_type
with indirect_type; peel CV qualifiers and typedefs without
testing as the peel function does this; replace the
indiscriminate peeling of qualifier/pointer/reference/array
type components with code that checks the same
pointer/reference/array type component is used on each side
and makes recursive calls with indirect_type set to true; pass
the indirect_type argument recursively when comparing other
subtypes; move the typeid check earlier, document its purpose
and remove unneccessary checks after later dynamic casts;
remove an always-true conditional; add a TODO for comparing
array types more accurately.
* tests/data/Makefile.am: Add new test case files.
* tests/data/test-abidiff-exit/test-leaf-peeling-v0.cc: New
test case.
* tests/data/test-abidiff-exit/test-leaf-peeling-v1.cc: Ditto.
* tests/data/test-abidiff-exit/test-leaf-peeling-report.txt:
Ditto.
* tests/test-abidiff-exit.cc: Run new test case.
Signed-off-by: Giuliano Procida <gprocida@google.com>
|
||
|---|---|---|
| .. | ||
| data | ||
| lib | ||
| .gitignore | ||
| Makefile.am | ||
| mockfedabipkgdiff.in | ||
| print-diff-tree.cc | ||
| runtestcanonicalizetypes.sh.in | ||
| runtestdefaultsupprs.py.in | ||
| runtestdefaultsupprspy3.sh.in | ||
| runtestfedabipkgdiff.py.in | ||
| runtestfedabipkgdiffpy3.sh.in | ||
| test-abicompat.cc | ||
| test-abidiff-exit.cc | ||
| test-abidiff.cc | ||
| test-alt-dwarf-file.cc | ||
| test-annotate.cc | ||
| test-core-diff.cc | ||
| test-diff2.cc | ||
| test-diff-dwarf-abixml.cc | ||
| test-diff-dwarf.cc | ||
| test-diff-filter.cc | ||
| test-diff-pkg.cc | ||
| test-diff-suppr.cc | ||
| test-dot.cc | ||
| test-ini.cc | ||
| test-ir-walker.cc | ||
| test-kmi-whitelist.cc | ||
| test-lookup-syms.cc | ||
| test-read-dwarf.cc | ||
| test-read-write.cc | ||
| test-svg.cc | ||
| test-tools-utils.cc | ||
| test-types-stability.cc | ||
| test-utils.cc | ||
| test-utils.h | ||
| test-valgrind-suppressions.supp | ||
| test-write-read-archive.cc | ||
| update-test-output.py | ||