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fix(bindgen): fix utf-8 to utf-16 transcode length calculation #1840

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Merged
vados-cosmonic merged 1 commit into from
Aug 6, 2026
+4 −4
Merged

fix(bindgen): fix utf-8 to utf-16 transcode length calculation #1840

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8 changes: 4 additions & 4 deletions crates/js-component-bindgen/src/transpile_bindgen.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2462,12 +2462,12 @@ impl<'a> Instantiator<'a, '_> {
function trampoline{i} (from_ptr, len, to_ptr) {{
const decoder = new TextDecoder();
const content = decoder.decode(new Uint8Array(memory{from}.buffer, from_ptr, len));
const strlen = content.length
const view = new Uint16Array(memory{to}.buffer, to_ptr, strlen * 2)
for (var i = 0; i < strlen; i++) {{
const codeUnits = content.length;
const view = new Uint16Array(memory{to}.buffer, to_ptr, codeUnits);
for (var i = 0; i < codeUnits; i++) {{
view[i] = content.charCodeAt(i);
}}
return strlen;
return codeUnits;
}}
"#,
);
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