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Make default switch case Optional.

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This commit is contained in:
Stephen Chung
2022-07-18 22:30:09 +08:00
parent 7dca916c45
commit f2724444bb
4 changed files with 81 additions and 56 deletions
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14
src/eval/stmt.rs
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@@ -498,12 +498,16 @@ impl Engine {
}
} else if let Ok(None) = stmt_block_result {
// Default match clause
let def_case = &case_blocks[*def_case].statements;
if let Some(index) = def_case {
let def_case = &case_blocks[*index].statements;
if !def_case.is_empty() {
self.eval_stmt_block(
scope, global, caches, lib, this_ptr, def_case, true, level,
)
if !def_case.is_empty() {
self.eval_stmt_block(
scope, global, caches, lib, this_ptr, def_case, true, level,
)
} else {
Ok(Dynamic::UNIT)
}
} else {
Ok(Dynamic::UNIT)
}