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Diffstat (limited to 'tools/js-optimizer.js')
| -rw-r--r-- | tools/js-optimizer.js | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js index e889c7a3..d22de39c 100644 --- a/tools/js-optimizer.js +++ b/tools/js-optimizer.js @@ -193,6 +193,11 @@ function unGlobalize(ast) { // - and in library/shell code too! - we should never rely on // undefined being assigned. So we can simply remove those assignments. // +// Note: An inlined function that kept a large value referenced, may +// keep that references when inlined, if we remove the setting to +// undefined. This is not dangerous in compiled code, but might be +// in supporting code (for example, holding on to the HEAP when copying). +// // This pass assumes that unGlobalize has been run, so undefined // is now explicit. function removeAssignsToUndefined(ast) { |