add --bundle flag for self-contained IIFE output

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elc --target=js --bundle source.el > output.js produces a single file
with no import statement that can drop directly into a <script> tag.

How it works:
  - detect_bundle() reads the --bundle flag from argv
  - resolve_runtime_path() looks for el_runtime.js next to the source file
  - compile_js_with_bundle() reads the runtime, calls codegen_js_bundle()
  - codegen_js_inner(bundle_mode=true):
    - emits ;(function() { "use strict"; at the top
    - inlines the runtime content (stripping ES export statements which
      are invalid inside an IIFE via js_strip_es_exports())
    - skips the const {...} = globalThis.__el destructure -- the inlined
      function declarations are already in scope within the IIFE
    - closes with })(); after main()

Usage: elc --target=js --bundle app.el > app.js
       Place el_runtime.js in the same directory as app.el.

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This commit is contained in:

Will Anderson

2026-05-04 10:40:46 -05:00

parent 437ba0a4dd

commit 422442b14e

3 changed files with 160 additions and 47 deletions

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