Skip to content

feat: reduce peak memory usage with .shrink_to_fit() #172

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Boshen merged 1 commit into from
Sep 26, 2025
Merged

feat: reduce peak memory usage with .shrink_to_fit() #172

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 13 additions & 1 deletion src/sourcemap_builder.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -76,7 +76,19 @@ impl SourceMapBuilder {
self.token_chunks = Some(token_chunks);
}

pub fn into_sourcemap(self) -> SourceMap {
pub fn into_sourcemap(mut self) -> SourceMap {
// Trade performance for memory.
// The tokens array take enormously large amount of data,
// which is not ideal for large applications.
self.names_map.shrink_to_fit();
self.names.shrink_to_fit();
self.sources.shrink_to_fit();
self.sources_map.shrink_to_fit();
// For checker.ts, capacity for `tokens` before and after are 262144 and 171174 respectively.
self.tokens.shrink_to_fit();
if let Some(c) = self.token_chunks.as_mut() {
c.shrink_to_fit()
}
SourceMap::new(
self.file,
self.names,
Expand Down
Loading