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This patch implements P1141R2 "Yet another approach for constrained declarations".
General strategy for this patch was:
- Expand AutoType to include optional type-constraint, reflecting the wording and easing the integration of constraints.
- Replace autos in parameter type specifiers with invented parameters in GetTypeSpecTypeForDeclarator, using the same logic
previously used for generic lambdas, now unified with abbreviated templates, by:
- Tracking the template parameter lists in the Declarator object
- Tracking the template parameter depth before parsing function declarators (at which point we can match template
parameters against scope specifiers to know if we have an explicit template parameter list to append invented parameters
to or not).
- When encountering an AutoType in a parameter context we check a stack of InventedTemplateParameterInfo structures that
contain the info required to create and accumulate invented template parameters (fields that were already present in
LambdaScopeInfo, which now inherits from this class and is looked up when an auto is encountered in a lambda context).
Resubmit after fixing MSAN failures caused by incomplete initialization of AutoTypeLocs in TypeSpecLocFiller.
Differential Revision: https://reviews.llvm.org/D65042
(cherry picked from commit b481f028144ca91c15d1db3649ce14f174259e7e)
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I am planning to use this feature to make update_cc_test_checks.py less fragile
by obtaining the mangled names directly from -ast-dump=json. Currently,
it uses c-index-test which ignores the -triple=, etc. arguments that are
in the RUN: line and therefore does not generate checks for some targets.
The AST dump tests were updated using the following command:
`python $LLVM_BINDIR/gen_ast_dump_json_test.py --update --source $LLVM_SRC/clang/test/AST/*-json.*`
Reviewers: aaron.ballman
Reviewed By: aaron.ballman
Subscribers: rsmith, MaskRay, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D69564
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This adds information about the offset within the source file to the given source location as well as information about the include file a location is from. These pieces of information allow for more efficient post-processing of JSON AST dumps.
llvm-svn: 374921
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Summary:
Clang uses the location identifier should be inserted for declarator
decls when a decl is unnamed. But for type template and template template
paramaters it uses the location of "typename/class" keyword, which makes it hard
for tooling to insert/change parameter names.
This change tries to unify these two cases by making template parameter
parsing and sourcerange operations similar to function params/declarator decls.
Reviewers: ilya-biryukov
Subscribers: arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68143
llvm-svn: 373340
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Clang <= 4 used the pre-C++11 rule about which structures can be passed in registers.
llvm-svn: 364690
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Rather than create JSON objects for source locations and ranges, we instead stream them out directly. This allows us to elide duplicate information (without JSON field reordering causing an issue) like file names and line numbers, similar to the text dump. This also adds token length information when dumping the source location.
llvm-svn: 364226
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This also details what filters, if any, were used to generate the test output. Updates all the current JSON testing files to include the automated note.
llvm-svn: 364055
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llvm-svn: 364043
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llvm-svn: 363849
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