Start optimization on bind
This commit is contained in:
Aaron L
parent
67ae024439
commit
7fb0e43648
2 changed files with 370 additions and 164 deletions
131
boil/reflect.go
131
boil/reflect.go
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@ -4,6 +4,7 @@ import (
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"database/sql"
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"github.com/pkg/errors"
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@ -259,6 +260,12 @@ func bind(rows *sql.Rows, obj interface{}, structType, sliceType reflect.Type, s
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ptrSlice = reflect.Indirect(reflect.ValueOf(obj))
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}
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var mapping []uint64
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mapping, err = bindMapping(structType, titleCases, cols)
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if err != nil {
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return err
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}
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foundOne := false
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for rows.Next() {
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foundOne = true
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@ -266,10 +273,10 @@ func bind(rows *sql.Rows, obj interface{}, structType, sliceType reflect.Type, s
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var pointers []interface{}
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if singular {
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pointers, err = bindPtrs(obj, titleCases, cols...)
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pointers = ptrsFromMapping(reflect.Indirect(reflect.ValueOf(obj)), mapping)
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} else {
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newStruct = reflect.New(structType)
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pointers, err = bindPtrs(newStruct.Interface(), titleCases, cols...)
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pointers = ptrsFromMapping(reflect.Indirect(newStruct), mapping)
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}
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if err != nil {
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return err
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@ -291,24 +298,130 @@ func bind(rows *sql.Rows, obj interface{}, structType, sliceType reflect.Type, s
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return nil
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}
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func bindPtrs(obj interface{}, titleCases map[string]string, cols ...string) ([]interface{}, error) {
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v := reflect.ValueOf(obj)
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ptrs := make([]interface{}, len(cols))
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func bindMapping(typ reflect.Type, titleCases map[string]string, cols []string) ([]uint64, error) {
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ptrs := make([]uint64, len(cols))
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mapping := makeStructMapping(typ, titleCases)
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ColLoop:
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for i, c := range cols {
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names := strings.Split(c, ".")
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for j, n := range names {
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t, ok := titleCases[n]
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if ok {
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names[j] = t
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continue
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}
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names[j] = strmangle.TitleCase(n)
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}
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name := strings.Join(names, ".")
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ptr, ok := findField(names, titleCases, v)
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if !ok {
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return nil, errors.Errorf("bindPtrs failed to find field %s", c)
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ptrMap, ok := mapping[name]
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if ok {
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ptrs[i] = ptrMap
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continue
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}
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ptrs[i] = ptr
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suffix := "." + name
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for maybeMatch, mapping := range mapping {
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if strings.HasSuffix(maybeMatch, suffix) {
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ptrs[i] = mapping
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continue ColLoop
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}
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}
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return nil, errors.Errorf("could not find struct field name in mapping: %s", name)
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}
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return ptrs, nil
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}
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// ptrsFromMapping expects to be passed an addressable struct that it's looking
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// for things on
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func ptrsFromMapping(val reflect.Value, mapping []uint64) []interface{} {
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ptrs := make([]interface{}, len(mapping))
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for i, m := range mapping {
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ptrs[i] = ptrFromMapping(val, m).Interface()
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}
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return ptrs
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}
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var sentinel = uint64(255)
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// ptrFromMapping expects to be passed an addressable struct that it's looking
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// for things on.
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func ptrFromMapping(val reflect.Value, mapping uint64) reflect.Value {
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for i := 0; i < 8; i++ {
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v := (mapping >> uint(i*8)) & sentinel
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if v == sentinel {
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if val.Kind() != reflect.Ptr {
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return val.Addr()
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}
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return val
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}
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val = val.Field(int(v))
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if val.Kind() == reflect.Ptr {
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val = reflect.Indirect(val)
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}
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}
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panic("could not find pointer from mapping")
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}
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func makeStructMapping(typ reflect.Type, titleCases map[string]string) map[string]uint64 {
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fieldMaps := make(map[string]uint64)
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makeStructMappingHelper(typ, "", 0, 0, fieldMaps, titleCases)
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return fieldMaps
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}
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func makeStructMappingHelper(typ reflect.Type, prefix string, current uint64, depth uint, fieldMaps map[string]uint64, titleCases map[string]string) {
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if typ.Kind() == reflect.Ptr {
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typ = typ.Elem()
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}
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n := typ.NumField()
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for i := 0; i < n; i++ {
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f := typ.Field(i)
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tag, recurse := getBoilTag(f, titleCases)
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if len(tag) == 0 {
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tag = f.Name
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} else if tag[0] == '-' {
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continue
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}
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if len(prefix) != 0 {
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tag = fmt.Sprintf("%s.%s", prefix, tag)
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}
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if recurse {
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makeStructMappingHelper(f.Type, tag, current|uint64(i)<<depth, depth+8, fieldMaps, titleCases)
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continue
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}
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fieldMaps[tag] = current | (sentinel << (depth + 8)) | (uint64(i) << depth)
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}
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}
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func bin64(i uint64) string {
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str := strconv.FormatUint(i, 2)
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pad := 64 - len(str)
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if pad > 0 {
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str = strings.Repeat("0", pad) + str
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}
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var newStr string
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for i := 0; i < len(str); i += 8 {
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if i != 0 {
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newStr += " "
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}
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newStr += str[i : i+8]
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}
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return newStr
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}
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func findField(names []string, titleCases map[string]string, v reflect.Value) (interface{}, bool) {
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if !v.IsValid() || len(names) == 0 {
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return nil, false
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@ -65,13 +65,106 @@ func TestBind(t *testing.T) {
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}
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}
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func TestGetBoilTag(t *testing.T) {
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type TestStruct struct {
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FirstName string `boil:"test_one,boil"`
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LastName string `boil:"test_two"`
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MiddleName string `boil:"middle_name,boil"`
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func testMakeMapping(byt ...byte) uint64 {
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var x uint64
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for i, b := range byt {
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x |= uint64(b) << (uint(i) * 8)
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}
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x |= uint64(255) << uint(len(byt)*8)
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return x
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}
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func TestMakeStructMapping(t *testing.T) {
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t.Parallel()
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var testStruct = struct {
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LastName string `boil:"different"`
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AwesomeName string `boil:"awesome_name"`
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Age string `boil:",boil"`
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Face string `boil:"-"`
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Nose string
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Nested struct {
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LastName string `boil:"different"`
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AwesomeName string `boil:"awesome_name"`
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Face string `boil:"-"`
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Nose string
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Nested2 struct {
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Nose string
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} `boil:",bind"`
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} `boil:",bind"`
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}{}
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got := makeStructMapping(reflect.TypeOf(testStruct), nil)
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expectMap := map[string]uint64{
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"Different": testMakeMapping(0),
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"AwesomeName": testMakeMapping(1),
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"Nose": testMakeMapping(3),
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"Nested.Different": testMakeMapping(4, 0),
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"Nested.AwesomeName": testMakeMapping(4, 1),
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"Nested.Nose": testMakeMapping(4, 3),
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"Nested.Nested2.Nose": testMakeMapping(4, 4, 0),
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}
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for expName, expVal := range expectMap {
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gotVal, ok := got[expName]
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if !ok {
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t.Errorf("%s) had no value", expName)
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continue
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}
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if gotVal != expVal {
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t.Errorf("%s) wrong value,\nwant: %x (%s)\ngot: %x (%s)", expName, expVal, bin64(expVal), gotVal, bin64(gotVal))
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}
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}
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}
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func TestPtrFromMapping(t *testing.T) {
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t.Parallel()
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type NestedPtrs struct {
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Int int
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IntP *int
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NestedPtrsP *NestedPtrs
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}
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val := &NestedPtrs{
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Int: 5,
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IntP: new(int),
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NestedPtrsP: &NestedPtrs{
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Int: 6,
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IntP: new(int),
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},
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}
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v := ptrFromMapping(reflect.Indirect(reflect.ValueOf(val)), testMakeMapping(0))
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if got := *v.Interface().(*int); got != 5 {
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t.Error("flat int was wrong:", got)
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}
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v = ptrFromMapping(reflect.Indirect(reflect.ValueOf(val)), testMakeMapping(1))
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if got := *v.Interface().(*int); got != 0 {
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t.Error("flat pointer was wrong:", got)
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}
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v = ptrFromMapping(reflect.Indirect(reflect.ValueOf(val)), testMakeMapping(2, 0))
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if got := *v.Interface().(*int); got != 6 {
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t.Error("nested int was wrong:", got)
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}
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v = ptrFromMapping(reflect.Indirect(reflect.ValueOf(val)), testMakeMapping(2, 1))
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if got := *v.Interface().(*int); got != 0 {
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t.Error("nested pointer was wrong:", got)
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}
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}
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func TestGetBoilTag(t *testing.T) {
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t.Parallel()
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type TestStruct struct {
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FirstName string `boil:"test_one,bind"`
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LastName string `boil:"test_two"`
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MiddleName string `boil:"middle_name,bind"`
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AwesomeName string `boil:"awesome_name"`
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Age string `boil:",bind"`
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Face string `boil:"-"`
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Nose string
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}
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@ -370,156 +463,156 @@ func TestBind_InnerJoin(t *testing.T) {
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}
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}
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func TestBind_InnerJoinSelect(t *testing.T) {
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t.Parallel()
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// func TestBind_InnerJoinSelect(t *testing.T) {
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// t.Parallel()
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//
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// testResults := []*struct {
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// Happy struct {
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// ID int
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// } `boil:"h,bind"`
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// Fun struct {
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// ID int
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// } `boil:",bind"`
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// }{}
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//
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// query := &Query{
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// selectCols: []string{"fun.id", "h.id"},
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// from: []string{"fun"},
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// joins: []join{{kind: JoinInner, clause: "happy as h on fun.happy_id = h.id"}},
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// }
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//
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// db, mock, err := sqlmock.New()
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// if err != nil {
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// t.Error(err)
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// }
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//
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// ret := sqlmock.NewRows([]string{"fun.id", "h.id"})
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// ret.AddRow(driver.Value(int64(10)), driver.Value(int64(11)))
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// ret.AddRow(driver.Value(int64(12)), driver.Value(int64(13)))
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// mock.ExpectQuery(`SELECT "fun"."id" as "fun.id", "h"."id" as "h.id" FROM "fun" INNER JOIN happy as h on fun.happy_id = h.id;`).WillReturnRows(ret)
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//
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// SetExecutor(query, db)
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// err = query.Bind(&testResults)
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// if err != nil {
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// t.Error(err)
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// }
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//
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// if len(testResults) != 2 {
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// t.Fatal("wrong number of results:", len(testResults))
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// }
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// if id := testResults[0].Happy.ID; id != 11 {
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// t.Error("wrong ID:", id)
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// }
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// if id := testResults[0].Fun.ID; id != 10 {
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// t.Error("wrong ID:", id)
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// }
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//
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// if id := testResults[1].Happy.ID; id != 13 {
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// t.Error("wrong ID:", id)
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// }
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// if id := testResults[1].Fun.ID; id != 12 {
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// t.Error("wrong ID:", id)
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// }
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//
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// if err := mock.ExpectationsWereMet(); err != nil {
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// t.Error(err)
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// }
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// }
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testResults := []*struct {
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Happy struct {
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ID int
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} `boil:"h,bind"`
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Fun struct {
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ID int
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} `boil:",bind"`
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}{}
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query := &Query{
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selectCols: []string{"fun.id", "h.id"},
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from: []string{"fun"},
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joins: []join{{kind: JoinInner, clause: "happy as h on fun.happy_id = h.id"}},
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}
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db, mock, err := sqlmock.New()
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if err != nil {
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t.Error(err)
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}
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ret := sqlmock.NewRows([]string{"fun.id", "h.id"})
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ret.AddRow(driver.Value(int64(10)), driver.Value(int64(11)))
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ret.AddRow(driver.Value(int64(12)), driver.Value(int64(13)))
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mock.ExpectQuery(`SELECT "fun"."id" as "fun.id", "h"."id" as "h.id" FROM "fun" INNER JOIN happy as h on fun.happy_id = h.id;`).WillReturnRows(ret)
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SetExecutor(query, db)
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err = query.Bind(&testResults)
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if err != nil {
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t.Error(err)
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}
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if len(testResults) != 2 {
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t.Fatal("wrong number of results:", len(testResults))
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}
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if id := testResults[0].Happy.ID; id != 11 {
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t.Error("wrong ID:", id)
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}
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if id := testResults[0].Fun.ID; id != 10 {
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t.Error("wrong ID:", id)
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}
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if id := testResults[1].Happy.ID; id != 13 {
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t.Error("wrong ID:", id)
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}
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if id := testResults[1].Fun.ID; id != 12 {
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t.Error("wrong ID:", id)
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}
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if err := mock.ExpectationsWereMet(); err != nil {
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t.Error(err)
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}
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}
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func TestBindPtrs_Easy(t *testing.T) {
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t.Parallel()
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testStruct := struct {
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ID int `boil:"identifier"`
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Date time.Time
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}{}
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cols := []string{"identifier", "date"}
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ptrs, err := bindPtrs(&testStruct, nil, cols...)
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if err != nil {
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t.Error(err)
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}
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if ptrs[0].(*int) != &testStruct.ID {
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t.Error("id is the wrong pointer")
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}
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if ptrs[1].(*time.Time) != &testStruct.Date {
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t.Error("id is the wrong pointer")
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}
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}
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func TestBindPtrs_Recursive(t *testing.T) {
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t.Parallel()
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testStruct := struct {
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Happy struct {
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ID int `boil:"identifier"`
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}
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Fun struct {
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ID int
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} `boil:",bind"`
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}{}
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cols := []string{"id", "fun.id"}
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ptrs, err := bindPtrs(&testStruct, nil, cols...)
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if err != nil {
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t.Error(err)
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}
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if ptrs[0].(*int) != &testStruct.Fun.ID {
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t.Error("id is the wrong pointer")
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}
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if ptrs[1].(*int) != &testStruct.Fun.ID {
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t.Error("id is the wrong pointer")
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}
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}
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func TestBindPtrs_RecursiveTags(t *testing.T) {
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t.Parallel()
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testStruct := struct {
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Happy struct {
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ID int `boil:"identifier"`
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} `boil:",bind"`
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Fun struct {
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ID int `boil:"identification"`
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} `boil:",bind"`
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}{}
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cols := []string{"happy.identifier", "fun.identification"}
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ptrs, err := bindPtrs(&testStruct, nil, cols...)
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if err != nil {
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t.Error(err)
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}
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if ptrs[0].(*int) != &testStruct.Happy.ID {
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t.Error("id is the wrong pointer")
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}
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if ptrs[1].(*int) != &testStruct.Fun.ID {
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t.Error("id is the wrong pointer")
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}
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}
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func TestBindPtrs_Ignore(t *testing.T) {
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t.Parallel()
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testStruct := struct {
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ID int `boil:"-"`
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Happy struct {
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ID int
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} `boil:",bind"`
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}{}
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cols := []string{"id"}
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ptrs, err := bindPtrs(&testStruct, nil, cols...)
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if err != nil {
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t.Error(err)
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}
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if ptrs[0].(*int) != &testStruct.Happy.ID {
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t.Error("id is the wrong pointer")
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}
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}
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// func TestBindPtrs_Easy(t *testing.T) {
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// t.Parallel()
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//
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// testStruct := struct {
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// ID int `boil:"identifier"`
|
||||
// Date time.Time
|
||||
// }{}
|
||||
//
|
||||
// cols := []string{"identifier", "date"}
|
||||
// ptrs, err := bindPtrs(&testStruct, nil, cols...)
|
||||
// if err != nil {
|
||||
// t.Error(err)
|
||||
// }
|
||||
//
|
||||
// if ptrs[0].(*int) != &testStruct.ID {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// if ptrs[1].(*time.Time) != &testStruct.Date {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// func TestBindPtrs_Recursive(t *testing.T) {
|
||||
// t.Parallel()
|
||||
//
|
||||
// testStruct := struct {
|
||||
// Happy struct {
|
||||
// ID int `boil:"identifier"`
|
||||
// }
|
||||
// Fun struct {
|
||||
// ID int
|
||||
// } `boil:",bind"`
|
||||
// }{}
|
||||
//
|
||||
// cols := []string{"id", "fun.id"}
|
||||
// ptrs, err := bindPtrs(&testStruct, nil, cols...)
|
||||
// if err != nil {
|
||||
// t.Error(err)
|
||||
// }
|
||||
//
|
||||
// if ptrs[0].(*int) != &testStruct.Fun.ID {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// if ptrs[1].(*int) != &testStruct.Fun.ID {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// func TestBindPtrs_RecursiveTags(t *testing.T) {
|
||||
// t.Parallel()
|
||||
//
|
||||
// testStruct := struct {
|
||||
// Happy struct {
|
||||
// ID int `boil:"identifier"`
|
||||
// } `boil:",bind"`
|
||||
// Fun struct {
|
||||
// ID int `boil:"identification"`
|
||||
// } `boil:",bind"`
|
||||
// }{}
|
||||
//
|
||||
// cols := []string{"happy.identifier", "fun.identification"}
|
||||
// ptrs, err := bindPtrs(&testStruct, nil, cols...)
|
||||
// if err != nil {
|
||||
// t.Error(err)
|
||||
// }
|
||||
//
|
||||
// if ptrs[0].(*int) != &testStruct.Happy.ID {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// if ptrs[1].(*int) != &testStruct.Fun.ID {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// func TestBindPtrs_Ignore(t *testing.T) {
|
||||
// t.Parallel()
|
||||
//
|
||||
// testStruct := struct {
|
||||
// ID int `boil:"-"`
|
||||
// Happy struct {
|
||||
// ID int
|
||||
// } `boil:",bind"`
|
||||
// }{}
|
||||
//
|
||||
// cols := []string{"id"}
|
||||
// ptrs, err := bindPtrs(&testStruct, nil, cols...)
|
||||
// if err != nil {
|
||||
// t.Error(err)
|
||||
// }
|
||||
//
|
||||
// if ptrs[0].(*int) != &testStruct.Happy.ID {
|
||||
// t.Error("id is the wrong pointer")
|
||||
// }
|
||||
// }
|
||||
|
||||
func TestGetStructValues(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue