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Reduce nesting of match expression

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This commit is contained in:
yt2b 2022-11-27 23:43:26 +09:00
parent 27dd95c8f9
commit eee3c03042
1 changed files with 27 additions and 32 deletions
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59
codegen/src/symboltable.rs
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@ -1178,38 +1178,33 @@ impl SymbolTableBuilder {
let symbol = if let Some(symbol) = table.symbols.get_mut(name.as_ref()) {
// Role already set..
match role {
SymbolUsage::Global => {
if !symbol.is_global() {
if symbol.is_parameter {
return Err(SymbolTableError {
error: format!("name '{}' is parameter and global", name),
location,
});
}
if symbol.is_referenced {
return Err(SymbolTableError {
error: format!(
"name '{}' is used prior to global declaration",
name
),
location,
});
}
if symbol.is_annotated {
return Err(SymbolTableError {
error: format!("annotated name '{}' can't be global", name),
location,
});
}
if symbol.is_assigned {
return Err(SymbolTableError {
error: format!(
"name '{}' is assigned to before global declaration",
name
),
location,
});
}
SymbolUsage::Global if !symbol.is_global() => {
if symbol.is_parameter {
return Err(SymbolTableError {
error: format!("name '{}' is parameter and global", name),
location,
});
}
if symbol.is_referenced {
return Err(SymbolTableError {
error: format!("name '{}' is used prior to global declaration", name),
location,
});
}
if symbol.is_annotated {
return Err(SymbolTableError {
error: format!("annotated name '{}' can't be global", name),
location,
});
}
if symbol.is_assigned {
return Err(SymbolTableError {
error: format!(
"name '{}' is assigned to before global declaration",
name
),
location,
});
}
}
SymbolUsage::Nonlocal => {