dependency.coffee | |
|---|---|
{extname} = require('path')
fs = require('fs') | |
| これを参照 | detective = require('fast-detective')
resolve = require('./resolve')
compilers = require('./compilers')
mtime = (path) ->
fs.statSync(path).mtime.valueOf()
class Module
@walk: ['js', 'coffee']
constructor: (request, parent) -> |
| modulenameとファイルパスが返ってくる | [@id, @filename] = resolve(request, parent)
@ext = extname(@filename).slice(1)
@mtime = mtime(@filename)
@paths = resolve.paths(@filename) |
| 拡張子に応じてコンパイラを切り替える | compile: ->
if not @_compile or @changed()
@mtime = mtime(@filename)
@_compile = compilers[@ext](@filename)
@_compile
modules: ->
if not @_modules or @changed()
@_modules = @resolve()
@_modules |
| 更新されているかどうか | changed: ->
@mtime isnt mtime(@filename)
resolve: ->
for path in @calls() |
| これはどういうこと？ | new @constructor(path, @) |
| Find calls to require() | calls: -> |
| @constructor.walkがどこから来てるのかわからん @walkのことか？ | if @ext in @constructor.walk
detective(@compile())
else []
class Dependency
constructor: (paths = []) ->
@paths = paths
resolve: ->
@modules or= (new Module(path) for path in @paths)
@deepResolve(@modules) |
| Private | deepResolve: (modules = [], result = [], search = {}) ->
for module in modules when not search[module.filename]
search[module.filename] = true
result.push(module)
@deepResolve(
module.modules(),
result
search
)
result
module.exports = Dependency
module.exports.Module = Module
|