We now use LookupFieldOrMethod for all SelectorExprs, and
simplify the logic to discriminate the various cases.
We inline static calls to promoted/indirected functions,
dramatically reducing the number of functions created.
More tests are needed, but I'd like to submit this as-is.
In this CL, we:
- rely less on Id strings. Internally we now use
*types.Method (and its components) almost everywhere.
- stop thinking of types.Methods as objects. They don't
have stable identities. (Hopefully they will become
plain-old structs soon.)
- eliminate receiver indirection wrappers:
indirection and promotion are handled together by makeWrapper.
- Handle the interactions of promotion, indirection and
abstract methods much more cleanly.
- support receiver-bound interface method closures.
- break up builder.selectField so we can re-use parts
(emitFieldSelection).
- add importer.PackageInfo.classifySelector utility.
- delete interfaceMethodIndex()
- delete namedTypeMethodIndex()
- delete isSuperInterface() (replaced by types.IsAssignable)
- call memberFromObject on each declared concrete method's
*types.Func, not on every Method frem each method set, in the
CREATE phase for packages loaded by gcimporter.
go/types:
- document Func, Signature.Recv() better.
- use fmt in {Package,Label}.String
- reimplement Func.String to be prettier and to include method
receivers.
API changes:
- Function.method now holds the types.Method (soon to be
not-an-object) for synthetic wrappers.
- CallCommon.Method now contains an abstract (interface)
method object; was an abstract method index.
- CallCommon.MethodId() gone.
- Program.LookupMethod now takes a *Method not an Id string.
R=gri
CC=golang-dev
https://golang.org/cl/11674043
Also: Fixes a couple of places where scopes instead
of objsets were used (missed in previous CL).
R=adonovan
CC=golang-dev
https://golang.org/cl/11419047
Now, in a "switch y := x.(type)", there is no object for the
outer y, only implicit objects, one per case (including
default).
Also: don't set obj=nil for blank idents (workaround suggested by gri).
R=gri
CC=golang-dev
https://golang.org/cl/11564046
Fixes go tool vet breakage when applied to files
with incomplete type information for anonymous
fields.
R=adonovan
CC=golang-dev
https://golang.org/cl/11773043
After this change is submitted the dependants on go.talks/pkg/playground
talks will be updated to use this one and the old package will be deleted.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/11759043
- implemented objset for tracking duplicates of fields and methods
which permitted a simpler and faster scope implementation in turn
- related cleanups and internal renames
- fixed a couple of identifier reporting bugs
Speed of type-checking itself increased by almost 10%
(from ~71Kloc/s to ~78Kloc/s on one machine, measured
via go test -run=Self).
R=adonovan
CC=golang-dev
https://golang.org/cl/11750043
- more consistent naming of some internal data types and methods
- better factoring of some error reporting code
- cleanup around association of methods with receiver base types
- more tests
R=adonovan
CC=golang-dev
https://golang.org/cl/11726043
Reduces by 94% the number of wrappers created during the tests.
(No appreciable difference in running time, sadly.)
R=gri
CC=golang-dev
https://golang.org/cl/11619043
- treat receivers like ordinary parameters when checking signatures;
concentrate all respective checks in one place
- continue to type-check methods even if receiver base type does not
satisfy receiver type criteria (comes for free)
- don't ignore blank _ methods anymore
- various related cleanups
As a consequence, the resolving needs one less internal phase.
R=adonovan
CC=golang-dev
https://golang.org/cl/11591045
Phrases like "returns whether or not the image is opaque" could be
describing what the function does (it always returns, regardless of
the opacity) or what it returns (a boolean indicating the opacity).
Even when the "or not" is missing, the phrasing is bizarre.
Go with "reports whether", which is still clunky but at least makes
it clear we're talking about the return value.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/11458046
I'd like to make vet work as a filter, but passing /dev/stdin as a
command line argument doesn't work. This at least makes it not panic.
R=r
CC=golang-dev
https://golang.org/cl/11521045
Details:
- emitImplicitSelections now emits common code for implicit
field selections in both method and field lookups.
The last iteration over the LookupFieldOrMethod indices---the explicit,
final index---is handled by the caller.
- anonFieldPath, candidate and the BFS algo in buildMethodSet are all gone.
R=gri
CC=golang-dev
https://golang.org/cl/11576045
Temporarily remove Field objects in favor of Vars for struct fields.
In forthcoming CL, Fields will play the symmetric role to Methods, and
serve as lookup results including index information.
R=adonovan
CC=golang-dev
https://golang.org/cl/11594043
The exported Server becomes handlerServer, and part of Presentation
now. Presentation is also now an http.Handler with its own
internal mux (a detail, which might go away).
main.go becomes ever simpler.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/11505043
ssa:
- Prog.CreatePackages inlined into all callers.
- Prog.CreatePackage is now exposed; idempotent; and checks for errors.
- '*address' not 'address' now implements lvalue (since it's 6 words).
- removed types.Method case from createMemberFromObject.
importer:
- added importer.PackageInfo.String method.
- simplifed importer.PackageInfo by putting types.Info in it.
- removed obsolete precondition from IsType.
R=gri
CC=golang-dev
https://golang.org/cl/11408045
Allmost all uses of go/types that wanted the type
information computed, installed callback functions
that stored the information in maps. Most of the
time this is the only thing that could be done because
there is no guarantee that types are completely set
up before the end of type-checking.
This CL removes the respective Context callbacks in favor
of corresponding maps that collect the desired information
on demand, grouped together in an optional Info struct.
R=adonovan
CC=golang-dev
https://golang.org/cl/11530044
cmd/godoc/godoc.go is now merged into main.go, which is now
only 530 lines.
App Engine mode is still broken, but should be easy to fix up.
(just needs a global *godoc.Presentation created in init)
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/11498044
- fixed method set computation
- lazily compute it for a type on demand
- lazy allocation of various temporary maps
Also:
- removed Interface.IsEmpty, Scope.IsEmpty
(these convenience functions didn't carry their weight)
- cosmetic changes
Next:
- consolidate various lookup APIs
- use lazily computed method sets for various checks
instead of individual lookups
R=adonovan
CC=golang-dev
https://golang.org/cl/11385044
The plan for godoc:
- Copy godoc source from the core repo to go.tools (this CL).
- Break godoc into several packages inside go.tools, leaving a package
main that merely sets up a local file system, interprets the command
line, and otherwise delegates the heavy-lifting to the new packages.
- Remove godoc from the core repo.
- Update cmd/go to install this godoc binary in $GOROOT/bin.
- Update misc/dist to include godoc when building binary distributions.
R=bradfitz
CC=golang-dev
https://golang.org/cl/11408043
