DisablePointerAddresses: Specifies whether to disable the printing of
pointer addresses.
DisableCapacities specifies whether to disable the printing of capacities
for arrays, slices, maps and channels.
These are useful when diffing data structures in tests. Printing pointers
and capacities would otherwise lead to false negatives.
This adds a new build tag named "safe" which serves the exact same
purpose as the current "disableunsafe" tag. This is being done, as
recommended by @shurcooL, since it is emerging as the standard way to do
it in several high profile packages, it mirrors the "unsafe" package
nicely, it is shorter, and users generally seem to prefer it.
However, to avoid breaking existing infrastructure, the disableunsafe
tag is still available and simply is being deprecated.
This commit adds logic to gracefully the internal reflect.Value flag bit
changes as of golang commit adf9b30e5594 while maintaining support all
the back to Go 1.0.
It accomplishes this by adding code to the init time inspection to
detect the change and set the flag positions accordingly.
While here, also removes a TODO comment since it was already done
previously.
This commit adds support for compiling spew without the unsafe package.
When compiled without the unsafe package, some of the more advanced
features such as invoking stringers on pointers from non-pointer
variables and unexported struct fields are not available.
By default, spew will be compiled in the limited mode for Google App
Engine since the unsafe package is not available there. Additionally,
spew can be compiled without the unsafe package manually by specifying
the "disableunsafe" build tag.
Finally, a new package-level constant named "UnsafeDisabled" has been
exposed which can be used to programmatically determine if spew was
compiled with access to the unsafe package.
If enabled by flags, try to use methods to stringify map keys and sort on that.
If we can't use primitive sorting and we can't use methods, we can still fall
back on spew itself. If SpewKeys is enabled, use Sprintf("%#v") to generate a
string and sort by that.
This will allow the command to update the package if an old one happens to
be present while still fetching it if it's missing.
Suggested by @shurcooL in #28.
This commit modifies the unsafeReflectValue function to recognize
reference types even when the indirection flag is not set for the series
of golang commits after ecccf07e7f9d and before 82f48826c6c7 which
introduced the additional scalar field in the reflect.Value struct. That
additional field has since been removed, but the intention of this code is
to work properly across all Go versions and other packages make use of the
logic.
Thanks to @shurcooL for providing example code which wasn't working
properly with the function when it was exported and therefore being called
in ways which spew itself does not.
This commit adds logic to gracefully handle the new internal reflect.Value
structure on tip as of golang commit 82f48826c6c7 as well as the internal
reflect.Value flag bit changes as of golang commit 90a7c3c86944.
It accomplishes this by doing some inspection at init time and choosing
the appropriate offsets and flag positions accordingly. There was some
previous logic which dealt with a similar issue for golang commit
ecccf07e7f9d. However, since the more recent commits essentially reverted
the change and also modify the flag bit positions, it made more sense to
rework the detection logic. In particular, the new logic examines the
size of the reflect.Value struct to determine the difference and extracts
the kind from the flags to determine if the flags have been changed.
As a result, this commit allows spew to work properly with tip all the
back to Go 1.0.
This commit adds logic to gracefully handle the new internal reflect.Value
structure on tip as of golang commit ecccf07e7f9d. It accomplishes this
by doing some inspection at init time and choosing the appropriate offsets
as well as modifying which offset is used for the value accordingly. As a
result, this allows spew to work properly with both the current release
version of Go as well as tip.
Fixes#15.
reflect.DeepEqual fails when comparing reflect.Value containing float64. I
think it cannot make sense of reflect.Value pointer tricks and directly
compare reflect.Value.val fields which contain the float value in 64 bits,
but a pointer to the float in 32 bits.
Fortunately, interface{} which have a similar memory layout, compare correctly,
so we just turn the []reflect.Value into []interface{}.
The function sort be sorting the uintptr itself, not the address of it.
Also, the previous code could easily panic on an unaddressable
reflect.Value since it was trying to take an address.
This commit moves the TestSortValues function from dump_test.go to
common_test.go to mirror the new implementation location. It also
slightly formats the tests to be consistent with the rest of the package.
This commit moves the new code related to sorting reflect.Value items into
common.go since it is accessed by both the formatter and the dumper. It
also adds comments to the new functions and unexports SortValues since it
should be an internal function only.
The previous version of SortKeys was sorting only native types. Now, if
the type is unknown it defaults to its reflect.Value.String()
representation which at least guarantees display stability.
If ConfigState.SortKeys is true, then dump and format will sort map keys
before displaying them. Only native types (bool, ints, uint, uintptr,
string) are supported, other slices are left unchanged.
The motivation is to have more diffable output, mostly for test purpose.
This commit updates the test coverage report in include the latest
tests for the recent cgo handling updates for char, unsigned char,
and uint8_t arrays.
This commit adds a script which can be used to generate the test coverage
report. It detects whether or not gcc is installed and adds the necessary
build tag to enable the new cgo tests when gcc is available.