Since commit 13c7bb5b0c (cmGeneratorExpression: Update strip function to
collect parsed expressions, 2025-04-08, v4.1.0-rc1~361^2~1), the logic
to strip generator expressions would error if the stripped expressions
were being collected and an expression without a `:` was found inside an
expression with a `:`. This resulted in an error when exporting a target
that contained such a generator expression in its link libraries or
compile definitions.
Address the error by checking whether the latest `$<` proceeded the
latest `:`.
Extend commit e8010b67c7 (cmGeneratorExpressionDAGChecker: Make local
generator available in constructor, 2024-04-25, v3.30.0-rc1~172^2~6) and
commit 633afa0b2e (cmGeneratorExpressionDAGChecker: Make config name
available in constructor, 2024-05-08, v3.30.0-rc1~82^2~2) to make the
full evaluation context available in the constructor.
Since commit 13c7bb5b0c (cmGeneratorExpression: Update strip function to
collect parsed expressions, 2025-04-08), the logic to strip generator
expressions from a string made incorrect assumptions about the contents of
generator expressions, leading certain cases to be stripped incorrectly.
Clean up the logic and fix broken behavior, and add test coverage with
`string(GENEX_STRIP)`.
Fixes: #27133
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`, now with "east const" enforcement.
Use `clang-format` version 18.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
Issue: #26123
Fix some additional places in export generation logic that were still
hard-coding the import prefix. Change cmGeneratorExpression::Preprocess
to take the desired prefix as an argument. (This replaces taking a
boolean whether to resolve relative paths; if a non-empty prefix is
given, that is used to resolve relative paths, otherwise relative paths
are left alone.) This should ensure that import properties always spell
the prefix according to the format being generated.
cmGeneratorExpression::Evaluate is a shortcut when only the evaluated string is
needed or an instance of cmCompiledGeneratorExpression cannot be cached.
Fixes: #19686
Simplify by re-ordering parameters of cmCompiledGeneratorExpression::Evaluate
so that frequently used parameters are before less frequently used parameters.
This allows with little extra arguments to get rid of one Evaluate overload,
which makes it easier to implement the cmGeneratorExpression::Evaluate utility.
The latter would otherwise need four overloads.
The quiet flag is false for all but one call to Evaluate. Make the quiet flag
a setter of cmCompiledGeneratorExpression to be able to remove it from the
Evaluate function signature.
Set the MinTypeNameLength option to an impossibly high value in order
to limit the diagnostics to iterators. Leave new expressions and cast
expressions for later.
An old workaround for `std::allocator_traits<>::value_type` lints from
IWYU on `std::vector<>` usage breaks IWYU's handling of `<memory>`.
Convert the workaround to use the same approach we already use for a
workaround of `std::__decay_and_strip<>::::__type` lints. Then update
the `<memory>` inclusions to follow the now-correct IWYU lints.
Suppress some cases in `Source/cmGeneratorExpressionNode.cxx` and
`Source/cmUVHandlePtr.h` where a few older compilers require a
user-defined default constructor (with `{}`).
