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Only use import.meta when strictly necessary #8940

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merged 6 commits into from
Jul 19, 2019
Merged

Only use import.meta when strictly necessary #8940

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b8f5282
Only use import.meta when strictly necessary
VirtualTim Jul 8, 2019
d000ca2
Use import.meta.url for MODULARIZE_INSTANCE + EXPORT_ES6 + USE_PTHREADS
VirtualTim Jul 11, 2019
b1defb8
Add missing semicolon.
VirtualTim Jul 11, 2019
bf11b3d
Update comment
VirtualTim Jul 15, 2019
c59b0c3
Merge in latest incoming
VirtualTim Jul 18, 2019
4fcb8b0
Remove whitespace to keep flake8 happy
VirtualTim Jul 18, 2019
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4 changes: 3 additions & 1 deletion emcc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2991,7 +2991,9 @@ def modularize():
# after document.currentScript is gone, so we save it.
# (when MODULARIZE_INSTANCE, an instance is created
# immediately anyhow, like in non-modularize mode)
if shared.Settings.EXPORT_ES6:
# In EXPORT_ES6 + USE_PTHREADS the 'thread' is actually an ES6 module webworker running in strict mode,
# so doesn't have access to 'document'. In this case use 'import.meta' instead.
if shared.Settings.EXPORT_ES6 and shared.Settings.USE_PTHREADS:
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script_url = "import.meta.url"
else:
script_url = "typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined"
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4 changes: 4 additions & 0 deletions src/shell.js
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Expand Up @@ -89,8 +89,12 @@ if (Module['ENVIRONMENT']) {
#if USE_PTHREADS && (!MODULARIZE || MODULARIZE_INSTANCE)
// In MODULARIZE mode _scriptDir needs to be captured already at the very top of the page immediately when the page is parsed, so it is generated there
// before the page load. In non-MODULARIZE modes generate it here.
#if EXPORT_ES6
var _scriptDir = import.meta.url;
#else
var _scriptDir = (typeof document !== 'undefined' && document.currentScript) ? document.currentScript.src : undefined;
#endif
#endif

// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';
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