Composite literals are initialized in place where possible, but in
cases the initializer expression refers to the variable that
is being updated
x = T{a: x.a}
we must ensure that the RHS is fully evaluated before we execute any
stores to x. This means we need to record the sequence of stores in a
"store buffer" and execute it only once the entire composite literal
has been evaluated.
Fixes issue #10127
Change-Id: If94e3b179beb25feea5b298ed43de6a199aaf347
Reviewed-on: https://go-review.googlesource.com/7533
Reviewed-by: Robert Griesemer <gri@golang.org>
Since all SSA values are immutable, no value copying is required for
any operations except those that load from or store to a variable;
those operations must do an aggregate copy, i.e., descend into struct
and array elements. All other calls to copyVal have been removed;
they were pieces of duct tape, as I had long suspected.
The descent must be based on the static type information, not the
"shape" of the dynamic value, since two reflect.Value structs may have
different internal shapes. We clobber the true definition of
reflect.Value's underlying type, replacing it with struct{interface{},
interface{}}, which is close enough to make the load/store functions
work.
+ Test
Change-Id: I5e239d91ed0cb2a669a9f75766024fe1f9a5c347
Reviewed-on: https://go-review.googlesource.com/7532
Reviewed-by: Robert Griesemer <gri@golang.org>
Before this change, declared init functions were not package members;
this choice dates from when go/types did not create Func objects for them.
Now, they have an Object. They appear in Members, keyed by "init#%d"
(sequence number) for uniqueness. They can be enumerated. They can
be looked up from a *types.Func via (*Program).FuncValue.
Caveat: fn.Object.Name() no longer equals fn.Name() in all cases.
NB: incompatible API change! (Your build will not break though.)
Change-Id: I2de873079fd57329e6c2f55a282940f6699a77a1
Reviewed-on: https://go-review.googlesource.com/6950
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Peter Collingbourne <pcc@google.com>
...since the zero value is more useful by far.
This is a breaking API change, obviously. (One or two tests in this
CL have intentional been left using the zero value, i.e., they now
load source.)
Change-Id: I42287bfcdb1afef8ee84e5eac12534dd0a1fd5d2
Reviewed-on: https://go-review.googlesource.com/5653
Reviewed-by: Robert Griesemer <gri@golang.org>
ssadump's -build=G option is now spelled -import; it was never related to ssa.
Change-Id: Ic21cd8b6990c0ffd25651c17a842a63bfa5019cf
Reviewed-on: https://go-review.googlesource.com/5172
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Before this change, many kinds of error would cause the loader to stop.
making it brittle when analyzing large codebases, as in "godoc -analysis".
This change moves operations that used to occur during
configuration---(*build.Context).Import, loading, and parsing of
initial packages---into the Load call, and ensures that all failures
during Loading are reported at the end so that the maximum amount of
progress is made.
Also: redesign the tests and add many new cases.
Change-Id: Ia8cd99416af7c5d4a5fe133908adfa83676d401f
Reviewed-on: https://go-review.googlesource.com/3626
Reviewed-by: Robert Griesemer <gri@golang.org>
And log its value in godoc -analysis.
Related to issue 8968
Change-Id: I96a96922a3fa5c434c69e0faff1cc8ec4686b6f2
Reviewed-on: https://go-review.googlesource.com/3154
Reviewed-by: Robert Griesemer <gri@golang.org>
Details:
- rename (*Program).TypesWithMethodSets() to RuntimeTypes()
- delete (*Package).TypesWithMethodSets() method and simplify
- move code to methods.go
- update test to use
1-2% improvement in space and time (though I barely trust this data
because the GC at tip is in such terrible state).
Change-Id: I38eab78b11e0ad0ff16e0530e775b6ff6a2ab246
Reviewed-on: https://go-review.googlesource.com/3148
Reviewed-by: Robert Griesemer <gri@golang.org>
...to avoid namespace conflicts.
Also make its name "main", since it defines func main().
And fix 2 typos.
Change-Id: I7cf7894d6bed134907b3d2742255e5a82426071b
Reviewed-on: https://go-review.googlesource.com/3150
Reviewed-by: Robert Griesemer <gri@golang.org>
+ Tests:
Extend function name uniqueness check to exported wrappers.
Check that expected synthetic functions are created, reachable, and not duplicated.
Change-Id: I0e87ebb2712e33e1f49da3fa9a9dde0085bf3850
Reviewed-on: https://go-review.googlesource.com/2013
Reviewed-by: Robert Griesemer <gri@golang.org>
+ test
Change-Id: Ie37835577ffcdd764cf6a0b611e02f04386755cf
Reviewed-on: https://go-review.googlesource.com/1580
Reviewed-by: Robert Griesemer <gri@golang.org>
...like we do for "runtime" functions, so that they fail informatively
if executed. They all need intrinsics, but only some are yet defined.
Also:
- added test for issue 9462
- "BUG" in test output is now a failure in all tests (not just $GOROOT tests)
- added intrinsic for reflect.SliceOf
- show dynamic type of panic value
Fixes issue 9462
Change-Id: I3a504c7faeed81e922fedc7dd59222717f3a7e95
Reviewed-on: https://go-review.googlesource.com/2145
Reviewed-by: Robert Griesemer <gri@golang.org>
Rewrite performed with this command:
sed -i '' 's_code.google.com/p/go\._golang.org/x/_g' \
$(grep -lr 'code.google.com/p/go.' *)
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/170920043
The needMethods cache logic was wrong: it would treat any
previous call as a cache hit, even if 'skip' was true for that
call. As a result it could fail to generate methods for some
'skip' types, i.e. anonymous structs.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/144750043
This CL is the first refactoring automated by "gorename". :)
Though I had to update the comments and run 'hg gofmt'. :(
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/142930043
It now has a main() function, which was confusing the logic to find the entry point.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/142860044
(godoc is excluded from this CL since it will continue to use
/src/pkg in its URL namespace, making the necessary cleanup
more subtle.)
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/141770043
Recent changes in the runtime caused the interpreter to call 'getg',
and it should never have gotten that far.
Also, delete bodies of "runtime" functions, since they're too magical.
This makes missing intrinsics cause very obvious failures.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/135330043
LookupFieldOrMethod now also decides whether a found
method is actually in the method set. Simplifies call
sites. Added corresponding API tests.
TODO (separate CL): Decide what the correct value for
the indirect result should be (as required for code
generation). For now, the result value for indirect
is unchanged from before if a field/method is found.
Fixesgolang/go#8584.
LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/132260043
(1) support Example functions defined in programs that don't
import "testing". We emit code to testmain.main() to call
them directly, since we can't call testing.Main.
(2) expose a FindTests function which reports the set of
Test, Example and Benchmark functions it finds.
Certain clients need this.
Added test for logic in FindTests.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/115290048
- Break out parts of coverage.go into more specific files.
- Re-enable test of nil interface-to-interface conversion.
- Update initorder test to reflect spec ambiguity and gc vs go/types variance.
- Re-enable test dependent on now-fixed bug 8189 ("value,ok" yields an untyped bool)
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/119530043
And serialize the printing of each item with a mutex.
It is the formatted output of this tool, after all.
Also: minor doc tweaks.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/114620044
Examples:
- "foo$1" becomes "pkg.foo$1"
- "init$1" (meaning the first declared "init" function) becomes "init#1",
to distinguish it from "init$1" (meaning the first anonymous function
within the synthetic "init" function that initializes package-level vars).
It is now an invariant that all source-level (non-synthetic)
functions have distinct names, and that all names include the
enclosing package. Added test for this.
+ updated various clients.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/122750043
It was missing from the four conversions and the Make* instructions.
(Experiments with pure bytes.Buffer-based printing were not faster; various TODOs removed.)
LGTM=crawshaw
R=gri, crawshaw
CC=golang-codereviews
https://golang.org/cl/58040043
Users need only add an extra file to the package to specify
additional imports and initialization steps in testmain, to
match their build system.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/120090043
If an expression is addressable, we compute its address then load, rather than
extracting the value of subelements. For aggregates this avoids large copies.
Example:
var x [2]struct{y [3]int}
print(x[1].y[2])
Was:
t0 = local [3]struct{x [5]int} (x) *[3]struct{x [5]int}
t1 = *t0 [3]struct{x [5]int}
t2 = t1[1:int] struct{x [5]int}
t3 = t2.x [#0] [5]int
t4 = t3[2:int] int
Now:
t1 = &t0[1:int] *struct{x [5]int}
t2 = &t1.x [#0] *[5]int
t3 = &t2[2:int] *int
t4 = *t3 int
Also:
- make emitFieldSelections responsible for calling emitDebugRef, as
one of its two calls was forgetting to do it.
- relax the specification of (*Program).VarValue because not all
subexpressions are materalized as values now.
- fix up the objlookup.go test expectations to match.
go/ssa/interp test runs 10% faster.
Thanks to Peter Collingbourne for pointing this out.
LGTM=pcc
R=pcc, gri
CC=golang-codereviews
https://golang.org/cl/109710043
PackageInfo:
- deleted IsType
- inlined + deleted: ValueOf, TypeCaseVar, ImportSpecPkg
- on failure, TypeOf accessor now returns nil (was: panic)
go/ssa: avoid extra map lookups by using Uses or Defs directly when safe to do so,
and keeping the TypeAndValue around in expr0().
LGTM=gri
R=gri, pcc
CC=golang-codereviews
https://golang.org/cl/107650043
This extends the sanity checker to identify and report referrers
which do not appear in the function's instruction lists, and fixes two
bugs in the lifting algorithm which were caught by the sanity check.
LGTM=adonovan
R=adonovan
CC=axwalk, golang-codereviews
https://golang.org/cl/110210045
Bare init functions omit calls to dependent init functions and the
use of an init guard. They are useful in cases where the client uses
a different calling convention for init functions, or cases where
it is easier for a client to analyze bare init functions.
LGTM=adonovan
R=adonovan
CC=golang-codereviews, iant
https://golang.org/cl/78780043
Alan Donovan
Peter Collingbourne
David Symonds
Andrew Gerrand
Robert Griesemer