Details:
- builder is now un-exported and is now a per-package entity.
- Package.nTo1Vars is now part of builder, where it belongs.
- CREATE phase code split out into its own file, create.go
- Context type is gone; it had become trivial after the
Importer refactoring.
- importer.PackageInfo.Imports() now encapsulates iteration
over imports.
Typical usage is now:
prog := ssa.NewProgram(imp.Fset, mode)
prog.CreatePackages(imp)
prog.BuildAll()
Builder.BuildPackage(Package) is now Package.Build()
Builder.BuildAllPackages() is now Program.BuildAll()
R=iant, gri
CC=golang-dev
https://golang.org/cl/9970044
A Builder is now just a Program and a Context.
Details of this CL:
- Builder.imp field removed.
- Builder.globals split up into Package.values and Prog.Builtins.
- Builder.packages moved to Prog.packages.
- Builder.PackageFor moved to Program.Package(types.Object)
- Program.Lookup() func replaces Builder.globals map.
- also: keep Package.info field around until end of BuildPackage.
Planned follow-ups to eliminate Builder from API:
- split NewBuilder up into NewProgram and Program.CreatePackages(...)
- move Builder.BuildAllPackages -> Program.BuildAll(Context)
- move Builder.BuildPackage -> Package.Build(Context)
R=gri, iant
CC=golang-dev
https://golang.org/cl/9966044
PLEASE NOTE: the APIs for both "importer" and "ssa" packages
will continue to evolve and both need some polishing; the key
thing is that this CL splits them.
The go.types/importer package contains contains the Importer,
which takes care of the mechanics of loading a set of packages
and type-checking them. It exposes for each package a
PackageInfo containing:
- the package's ASTs (i.e. the input to the typechecker)
- the types.Package object
- the memoization of the typechecker callbacks for identifier
resolution, constant folding and expression type inference.
Method-set computation (and hence bridge-method creation) is
now moved to after creation of all packages: since they are no
longer created in topological order, we can't guarantee the
needed delegate methods exist yet.
ssa.Package no longer has public TypeOf, ObjectOf, ValueOf methods.
The private counterparts are valid only during the build phase.
Also:
- added to go/types an informative error (not crash) for an
importer() returning nil without error.
- removed Package.Name(), barely needed.
- changed Package.String() slightly.
- flag what looks like a bug in makeBridgeMethod. Will follow up.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/9898043
PathEnclosingInterval: maps a source position to an ast.Node.
EnclosingFunction: finds ssa.Function enclosing an ast.Node.
HasEnclosingFunction: cheaper impl of EnclosingFunction()!=nil
NodeDescription: user friendly node type descriptions.
+ tests.
Also: make ssa.Package.TypeInfo field a pointer.
R=gri, r
CC=golang-dev
https://golang.org/cl/9639045
