Giant blob of minor changes

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / honnef.co / go / tools@v0.0.1-2020.1.5 / internal / passes / buildir / buildir.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.5/internal/passes/buildir/buildir.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.5/internal/passes/buildir/buildir.go
new file mode 100644 (file)
index 0000000..3946977
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.5/internal/passes/buildir/buildir.go
@@ -0,0 +1,113 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package buildir defines an Analyzer that constructs the IR
+// of an error-free package and returns the set of all
+// functions within it. It does not report any diagnostics itself but
+// may be used as an input to other analyzers.
+//
+// THIS INTERFACE IS EXPERIMENTAL AND MAY BE SUBJECT TO INCOMPATIBLE CHANGE.
+package buildir
+
+import (
+       "go/ast"
+       "go/types"
+       "reflect"
+
+       "golang.org/x/tools/go/analysis"
+       "honnef.co/go/tools/ir"
+)
+
+type willExit struct{}
+type willUnwind struct{}
+
+func (*willExit) AFact()   {}
+func (*willUnwind) AFact() {}
+
+var Analyzer = &analysis.Analyzer{
+       Name:       "buildir",
+       Doc:        "build IR for later passes",
+       Run:        run,
+       ResultType: reflect.TypeOf(new(IR)),
+       FactTypes:  []analysis.Fact{new(willExit), new(willUnwind)},
+}
+
+// IR provides intermediate representation for all the
+// non-blank source functions in the current package.
+type IR struct {
+       Pkg      *ir.Package
+       SrcFuncs []*ir.Function
+}
+
+func run(pass *analysis.Pass) (interface{}, error) {
+       // Plundered from ssautil.BuildPackage.
+
+       // We must create a new Program for each Package because the
+       // analysis API provides no place to hang a Program shared by
+       // all Packages. Consequently, IR Packages and Functions do not
+       // have a canonical representation across an analysis session of
+       // multiple packages. This is unlikely to be a problem in
+       // practice because the analysis API essentially forces all
+       // packages to be analysed independently, so any given call to
+       // Analysis.Run on a package will see only IR objects belonging
+       // to a single Program.
+
+       mode := ir.GlobalDebug
+
+       prog := ir.NewProgram(pass.Fset, mode)
+
+       // Create IR packages for all imports.
+       // Order is not significant.
+       created := make(map[*types.Package]bool)
+       var createAll func(pkgs []*types.Package)
+       createAll = func(pkgs []*types.Package) {
+               for _, p := range pkgs {
+                       if !created[p] {
+                               created[p] = true
+                               irpkg := prog.CreatePackage(p, nil, nil, true)
+                               for _, fn := range irpkg.Functions {
+                                       if ast.IsExported(fn.Name()) {
+                                               var exit willExit
+                                               var unwind willUnwind
+                                               if pass.ImportObjectFact(fn.Object(), &exit) {
+                                                       fn.WillExit = true
+                                               }
+                                               if pass.ImportObjectFact(fn.Object(), &unwind) {
+                                                       fn.WillUnwind = true
+                                               }
+                                       }
+                               }
+                               createAll(p.Imports())
+                       }
+               }
+       }
+       createAll(pass.Pkg.Imports())
+
+       // Create and build the primary package.
+       irpkg := prog.CreatePackage(pass.Pkg, pass.Files, pass.TypesInfo, false)
+       irpkg.Build()
+
+       // Compute list of source functions, including literals,
+       // in source order.
+       var addAnons func(f *ir.Function)
+       funcs := make([]*ir.Function, len(irpkg.Functions))
+       copy(funcs, irpkg.Functions)
+       addAnons = func(f *ir.Function) {
+               for _, anon := range f.AnonFuncs {
+                       funcs = append(funcs, anon)
+                       addAnons(anon)
+               }
+       }
+       for _, fn := range irpkg.Functions {
+               addAnons(fn)
+               if fn.WillExit {
+                       pass.ExportObjectFact(fn.Object(), new(willExit))
+               }
+               if fn.WillUnwind {
+                       pass.ExportObjectFact(fn.Object(), new(willUnwind))
+               }
+       }
+
+       return &IR{Pkg: irpkg, SrcFuncs: funcs}, nil
+}