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sample_project_go

README.md

Go Sample Project

This is a comprehensive Go sample project for testing code analysis and indexing tools. It covers major Go language features and patterns.

Files Overview

1. basic_functions.go

  • Basic function definitions
  • Multiple return values
  • Named returns
  • Variadic functions
  • Higher-order functions
  • Closures
  • Recursion
  • Defer, panic, and recover
  • Init functions

2. structs_methods.go

  • Struct definitions
  • Value and pointer receivers
  • Constructor functions
  • Embedded structs
  • Method chaining
  • Private and public fields

3. interfaces.go

  • Interface definitions
  • Interface implementations
  • Interface embedding
  • Type assertions
  • Type switches
  • Empty interfaces
  • Polymorphism

4. goroutines_channels.go

  • Goroutines
  • Channels (buffered and unbuffered)
  • Select statements
  • Worker pools
  • Mutexes (sync.Mutex, sync.RWMutex)
  • Wait groups
  • Pipeline patterns
  • Fan-out/Fan-in patterns
  • Singleton with sync.Once

5. error_handling.go

  • Basic error returns
  • Custom error types
  • Error wrapping (Go 1.13+)
  • Sentinel errors
  • Error type assertions
  • errors.Is and errors.As
  • Validation errors
  • Panic to error conversion
  • Deferred error handling

6. generics.go

  • Generic functions
  • Generic types (Stack, Queue, Cache)
  • Type constraints
  • Generic data structures
  • Map/Filter/Reduce with generics
  • Generic linked lists

7. embedded_composition.go

  • Struct embedding
  • Method promotion
  • Multiple embedding
  • Interface embedding
  • Composition over inheritance
  • Name conflict resolution

8. advanced_types.go

  • Custom types
  • Type aliases
  • Enum patterns
  • Maps and nested maps
  • Slices and 2D slices
  • Arrays
  • Struct tags
  • Anonymous structs
  • Function types
  • Channel types
  • Sortable types (sort.Interface)
  • Bit flags

9. packages_imports.go

  • Standard library imports
  • Aliased imports
  • Blank imports
  • Package initialization (init)
  • Multiple package usage
  • Common stdlib packages: fmt, strings, math, time, os, io, net/http

10. util/helpers.go (subpackage)

  • Utility types and functions
  • String utilities
  • Math utilities
  • Slice utilities
  • Validators
  • Logger implementation
  • Package-level helper functions

Features Covered

  • ✅ Basic syntax and functions
  • ✅ Structs and methods
  • ✅ Interfaces and polymorphism
  • ✅ Concurrency (goroutines, channels, sync)
  • ✅ Error handling patterns
  • ✅ Generics (Go 1.18+)
  • ✅ Embedding and composition
  • ✅ Advanced types (maps, slices, custom types)
  • ✅ Package organization
  • ✅ Standard library usage
  • ✅ Common patterns and idioms

Building and Running

# Initialize module
go mod init github.com/example/sample_project_go

# Download dependencies
go mod tidy

# Run individual files
go run basic_functions.go
go run structs_methods.go
# ... etc

# Build all
go build ./...

# Run tests (if tests are added)
go test ./...

Use Cases

This sample project is designed for:

  • Testing code analysis tools
  • Demonstrating Go best practices
  • Code indexing and graph database population
  • Understanding Go language features
  • Reference implementation for Go patterns