var nopos token.Pos

func mustParse(fset *token.FileSet, src string) *ast.File {
	f, err := parser.ParseFile(fset, pkgName(src), src, parser.ParseComments)
	if err != nil {
		panic(err) // so we don't need to pass *testing.T
	}
	return f
}

func typecheck(src string, conf *Config, info *Info) (*Package, error) {
	fset := token.NewFileSet()
	f := mustParse(fset, src)
	if conf == nil {
		conf = &Config{

			fmt.Fprintf(&gccgoInit, "\t%s = &%s;\n", n.Mangle, n.C)
			fmt.Fprintf(fc, "\n")
		}

		fmt.Fprintf(fgo2, "var %s ", n.Mangle)
		conf.Fprint(fgo2, fset, node)
		if !*gccgo {
			fmt.Fprintf(fgo2, " = (")
			conf.Fprint(fgo2, fset, node)
			fmt.Fprintf(fgo2, ")(unsafe.Pointer(&__cgo_%s))", n.C)
		}
		fmt.Fprintf(fgo2, "\n")
	}
	if *gccgo {
		fmt.Fprintf(fc, "\n")
	}

		// skip
		return nil, nil
	}

	if !ctxt.goodOSArchFile(name, allTags) && !ctxt.UseAllFiles {
		return nil, nil
	}

	info := &fileInfo{name: ctxt.joinPath(dir, name), fset: fset}
	if ext == ".syso" {
		// binary, no reading
		return info, nil
	}

	f, err := ctxt.openFile(info.name)
	if err != nil {
		return nil, err
	}

							Tfn:  resolveReflectText(textOffFor(ft, m.Tfn)),
						})

					}
				}
			}
		}
		if _, dup := fset[name]; dup && name != "_" {
			panic("reflect.StructOf: duplicate field " + name)
		}
		fset[name] = struct{}{}

		hash = fnv1(hash, byte(ft.Hash>>24), byte(ft.Hash>>16), byte(ft.Hash>>8), byte(ft.Hash))

		repr = append(repr, (" " + stringFor(ft))...)

			t.Go = c.goVoidPtr
			t.C.Set("void*")
			dq := dt.Type
			for {
				if d, ok := dq.(*dwarf.QualType); ok {
					t.C.Set(d.Qual + " " + t.C.String())
					dq = d.Type
				} else {
					break
				}
			}
			break
		}

		// Placeholder initialization; completed in FinishType.
		t.Go = &ast.StarExpr{}
		t.C.Set("<incomplete>*")
		key := dt.Type.String()

// rawExpr typechecks expression e and initializes x with the expression
// value or type. If an error occurred, x.mode is set to invalid.
// If a non-nil target T is given and e is a generic function,
// T is used to infer the type arguments for e.
// If hint != nil, it is the type of a composite literal element.
// If allowGeneric is set, the operand type may be an uninstantiated
// parameterized type or function value.

	}

	cache.iamGroupsMap[group] = gi

	// update user-group membership map
	for _, member := range members {
		gset := cache.iamUserGroupMemberships[member]
		if gset == nil {
			gset = set.CreateStringSet(group)
		} else {
			gset.Add(group)
		}
		cache.iamUserGroupMemberships[member] = gset
	}

	cache.updatedAt = time.Now()
	return gi.UpdatedAt, nil
}

								Set:    map[string]string{"x-route-req-set": "v1", ":authority": "internal.foo.extsvc.com"},
								Add:    map[string]string{"x-route-req-add": "v2", ":authority": "internal.bar.extsvc.com"},
								Remove: []string{"x-route-req-remove"},
							},
							Response: &networking.Headers_HeaderOperations{
								Set:    map[string]string{"x-route-resp-set": "v1"},

		{name: "ADDSconstflags", argLength: 1, reg: gp11flags, typ: "(UInt64,Flags)", asm: "ADDS", aux: "Int64"},      // arg0+auxint, set flags.
		{name: "ADDSflags", argLength: 2, reg: gp21flags, typ: "(UInt64,Flags)", asm: "ADDS", commutative: true},      // arg0+arg1, set flags.
		{name: "SUB", argLength: 2, reg: gp21, asm: "SUB"},                                                            // arg0 - arg1

	for _, parentUser := range parentUsers {
		currGroupsSet := updatedGroups[parentUser]
		currGroups := currGroupsSet.ToSlice()
		for _, cred := range parentUserToCredsMap[parentUser] {
			gSet := set.CreateStringSet(cred.Groups...)
			if gSet.Equals(currGroupsSet) {
				// No change to groups memberships for this
				// credential.
				continue
			}

			// Expired credentials don't need group membership updates.