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LibSQL: Add better error handling to evaluate and execute methods

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There was a lot of `VERIFY_NOT_REACHED` error handling going on. Fixed
most of those.

A bit of a caveat is that after every `evaluate` call for expressions
that are part of a statement the error status of the `SQLResult` return
value must be called.
This commit is contained in:
Jan de Visser 2021-10-23 10:46:33 -04:00 • committed by Andreas Kling
parent 0cfb5eec32
commit 9022cf99ff
5 changed files with 125 additions and 55 deletions
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4
Userland/Libraries/LibSQL/AST/Insert.cpp
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@ -44,6 +44,7 @@ RefPtr<SQLResult> Insert::execute(ExecutionContext& context) const
Vector<Row> inserted_rows;
inserted_rows.ensure_capacity(m_chained_expressions.size());
context.result = SQLResult::construct();
for (auto& row_expr : m_chained_expressions) {
for (auto& column_def : table_def->columns()) {
if (!m_column_names.contains_slow(column_def.name())) {
@ -51,6 +52,8 @@ RefPtr<SQLResult> Insert::execute(ExecutionContext& context) const
}
}
auto row_value = row_expr.evaluate(context);
if (context.result->has_error())
return context.result;
VERIFY(row_value.type() == SQLType::Tuple);
auto values = row_value.to_vector().value();
@ -76,6 +79,7 @@ RefPtr<SQLResult> Insert::execute(ExecutionContext& context) const
for (auto& inserted_row : inserted_rows) {
context.database->insert(inserted_row);
// FIXME Error handling
}
return SQLResult::construct(SQLCommand::Insert, 0, m_chained_expressions.size(), 0);