mirror of https://github.com/go-gorm/gorm.git
8c18714462
Go 1.22 goes somewhat toward addressing the issue using reflect MethodByName disabling linker deadcode elimination (DCE) and the resultant large increase in binary size because the linker cannot prune unused code because it might be reached via reflection. Go Issue golang/go#62257 reduces the number of incidences of this problem by leveraging a compiler assist to avoid marking functions containing calls to MethodByName as ReflectMethods as long as the arguments are constants. An analysis of Uber Technologies code base however shows that a number of transitive imports still contain calls to MethodByName with a variable argument, including GORM. In the case of GORM, the solution we are proposing is because the number of possible methods is finite, we will "unroll" this. This demonstrably shows that GORM is not longer a problem for DCE. Before ``` % go version go version devel go1.22-2f3458a8ce Sat Sep 16 16:26:48 2023 -0700 darwin/arm64 % go test ./... -ldflags=-dumpdep 2> >(grep -i -e '->.*<reflectmethod>') gorm.io/gorm.(*Statement).BuildCondition -> gorm.io/gorm/schema.ParseWithSpecialTableName <ReflectMethod> type:reflect.Value <UsedInIface> -> reflect.(*Value).Method <ReflectMethod> type:reflect.Value <UsedInIface> -> reflect.(*Value).MethodByName <ReflectMethod> ok gorm.io/gorm (cached) ok gorm.io/gorm/callbacks (cached) gorm.io/gorm/clause_test.BenchmarkComplexSelect -> gorm.io/gorm/schema.ParseWithSpecialTableName <ReflectMethod> type:reflect.Value <UsedInIface> -> reflect.(*Value).Method <ReflectMethod> type:reflect.Value <UsedInIface> -> reflect.(*Value).MethodByName <ReflectMethod> ? gorm.io/gorm/migrator [no test files] ok gorm.io/gorm/clause (cached) ok gorm.io/gorm/logger (cached) gorm.io/gorm/schema_test.TestAdvancedDataTypeValuerAndSetter -> gorm.io/gorm/schema.ParseWithSpecialTableName <ReflectMethod> type:reflect.Value <UsedInIface> -> reflect.(*Value).Method <ReflectMethod> type:reflect.Value <UsedInIface> -> reflect.(*Value).MethodByName <ReflectMethod> ? gorm.io/gorm/utils/tests [no test files] ok gorm.io/gorm/schema (cached) ok gorm.io/gorm/utils (cached) ``` After ``` %go version go version devel go1.22-2f3458a8ce Sat Sep 16 16:26:48 2023 -0700 darwin/arm64 %go test ./... -ldflags=-dumpdep 2> >(grep -i -e '->.*<reflectmethod>') ok gorm.io/gorm (cached) ok gorm.io/gorm/callbacks (cached) ? gorm.io/gorm/migrator [no test files] ? gorm.io/gorm/utils/tests [no test files] ok gorm.io/gorm/clause (cached) ok gorm.io/gorm/logger (cached) ok gorm.io/gorm/schema (cached) ok gorm.io/gorm/utils (cached) ``` |
||
|---|---|---|
| .github | ||
| callbacks | ||
| clause | ||
| logger | ||
| migrator | ||
| schema | ||
| tests | ||
| utils | ||
| .gitignore | ||
| .golangci.yml | ||
| LICENSE | ||
| README.md | ||
| association.go | ||
| callbacks.go | ||
| chainable_api.go | ||
| errors.go | ||
| finisher_api.go | ||
| go.mod | ||
| go.sum | ||
| gorm.go | ||
| interfaces.go | ||
| migrator.go | ||
| model.go | ||
| prepare_stmt.go | ||
| scan.go | ||
| soft_delete.go | ||
| statement.go | ||
| statement_test.go | ||
README.md
GORM
The fantastic ORM library for Golang, aims to be developer friendly.
Overview
- Full-Featured ORM
- Associations (Has One, Has Many, Belongs To, Many To Many, Polymorphism, Single-table inheritance)
- Hooks (Before/After Create/Save/Update/Delete/Find)
- Eager loading with
Preload,Joins - Transactions, Nested Transactions, Save Point, RollbackTo to Saved Point
- Context, Prepared Statement Mode, DryRun Mode
- Batch Insert, FindInBatches, Find To Map
- SQL Builder, Upsert, Locking, Optimizer/Index/Comment Hints, NamedArg, Search/Update/Create with SQL Expr
- Composite Primary Key
- Auto Migrations
- Logger
- Extendable, flexible plugin API: Database Resolver (Multiple Databases, Read/Write Splitting) / Prometheus…
- Every feature comes with tests
- Developer Friendly
Getting Started
- GORM Guides https://gorm.io
- Gen Guides https://gorm.io/gen/index.html
Contributing
You can help to deliver a better GORM, check out things you can do
Contributors
Thank you for contributing to the GORM framework!
License
© Jinzhu, 2013~time.Now
Released under the MIT License