Modules

[jasonsbarr]

• MemberExpressions as types in type annotations
• modules and provides (all definitions provided)
• import and from forms with aliasing
• determine module location conventions
• resolve modules from member expression and dependency string
• building and traversing the dependency graph
• load modules via an output modules.js file that imports all modules used in a program and constructs them based on dependency order
• Conventions for modules:
  • first item in import member expression is Wanda - module is in compiler lib/ directory
  • Modules - module is in node_modules/
  • Names for folders/files are PascalCase in code, lisp-case in folder/file names
  • No index files, e.g. like index.js or module.py
  • Main file in a module has the same filename as the folder it's in
  • Last member of import declaration member expression is the file
  • build/ directory preserves local lib file/folder structure
• export types from a module
• handle modules in the type checker
• a library in Wanda that can be imported
• compile toplevel to main module when outputting file(s)
• main module can receive process.argv
• main module returns main function that receives argv as its sole argument
• CLI compiles all modules to individual files and imports properly when given a toplevel module with imports
• option to bundle compiled output
• __module__ variable available in every module with module name
• standardized project structure
• CLI can scaffold new project
• wanda run command can run a whole project, not just a single file
• use import declaration inside REPL