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handle a bunch of extra logic

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velzie 2024-10-28 20:27:45 -04:00
parent e0a16f1c60
commit 39d880cbca
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1 changed files with 34 additions and 4 deletions
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38
rewriter/src/rewrite.rs
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@ -426,6 +426,7 @@ pub fn rewrite(
// dbg!(&program);
ast_pass.visit_program(&program);
let mut hoists = String::new();
if !module {
for s in &program.body {
if let Statement::VariableDeclaration(it) = s {
@ -437,12 +438,40 @@ pub fn rewrite(
text: String::new(),
});
for d in &it.declarations {
ast_pass.jschanges.push(JsChange::GenericChange {
span: Span::new(d.id.span().start, d.id.span().start),
text: "fakeVars.".to_string(),
});
let Some(id) = d.id.get_identifier() else {
continue; // destructures are todo
};
if d.init.is_some() {
ast_pass.jschanges.push(JsChange::GenericChange {
span: Span::new(d.id.span().start, d.id.span().start),
text: "fakeVars.".to_string(),
});
} else {
ast_pass.jschanges.push(JsChange::GenericChange {
span: Span::new(d.id.span().start, d.id.span().end),
text: format!("fakeVars.{}??=undefined", id),
});
}
hoists += &format!(";fakeVars.{}??=undefined;", id);
}
}
// TODO the function stuff breaks easily if you overwrite it
if let Statement::FunctionDeclaration(it) = s {
let Some(id) = &it.id else { continue };
ast_pass.jschanges.push(JsChange::GenericChange {
span: Span::new(it.span.end, it.span.end),
text: format!(";fakeVars.{}={};", id, id),
});
}
if let Statement::ClassDeclaration(it) = s {
let Some(id) = &it.id else { continue };
ast_pass.jschanges.push(JsChange::GenericChange {
span: Span::new(it.span.end, it.span.end),
text: format!(";fakeVars.{}={};", id, id),
});
}
}
}
@ -491,6 +520,7 @@ pub fn rewrite(
let size_estimate = (original_len as i32 + difference) as usize;
let mut buffer: Vec<u8> = Vec::with_capacity(size_estimate);
buffer.extend_from_slice(hoists.as_bytes());
let mut sourcemap: Vec<u8> = Vec::new();
if ast_pass.config.do_sourcemaps {