Curated source guide

TS-Go source explorer

Explore the TypeScript 7 native compiler source code. Study the Go implementation of parsing, binding, type checking, module resolution, emit, project builds, and language service internals.

Guide chapters

1. Chapter 1 - Source Tree Mental Model
2. Chapter 2 - Command Line And Program Creation
3. Chapter 3 - Scanner Parser And AST
4. Chapter 4 - Binding And Type Checking
5. Chapter 5 - Module Resolution Projects And Incrementality
6. Chapter 6 - Emit Language Service And Tests

Key directories

• cmd/tsgo/ — Native compiler command entry point
• internal/ — Contains compiler, language service, project, module, and tooling packages.
• testdata/ — Contains ported and native test inputs.
• _submodules/ — Contains linked upstream TypeScript repository content used during the port.
• internal/execute/ — Contains command-line execution, status handling, and compiler invocation.
• internal/compiler/ — Program lifecycle, source files, project references, and diagnostics