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… modifiers Fixes vuejs#12319 When using .exact modifier with all system modifiers (.ctrl.shift.alt.meta.exact), the compiler generated syntax error code like 'if()return null;' because the filter resulted in an empty array. Changes: - Only add the exact modifier guard when there are remaining modifiers to check - This prevents generating empty condition in the if statement Before: if()return null; // SyntaxError: Unexpected token ')' After: // No empty condition generated, code is valid Added test case to verify the fix works correctly.
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Fixes #12319
Problem
When using exact modifier with all system modifiers (ctrl+shift+alt+meta+exact), the compiler generated syntax error code because the filter resulted in an empty array.
Solution
Only add the exact modifier guard when there are remaining modifiers to check.
Changes
Before
if()return null; // SyntaxError
After
Valid code generated