tiny.sql.Statement

1pub const Statement = union(enum) {2    insert: Insert,3    select: Select,4    update: Update,5    delete: Delete,6    create_table: CreateTable,7    create_index: CreateIndex,8    drop_table: DropTable,9    analyze: Analyze,1011    pub fn deinit(self: *Statement, allocator: Allocator) void {12        switch (self.*) {13            .insert => |insert| {14                if (insert.columns) |columns| allocator.free(columns);15                allocator.free(insert.values);16            },17            .select => |select| {18                switch (select.projection) {19                    .all => {},20                    .columns => |columns| allocator.free(columns),21                }22                allocator.free(select.predicates);23                allocator.free(select.order);24            },25            .update => |update| {26                allocator.free(update.assignments);27                allocator.free(update.predicates);28            },29            .delete => |delete| allocator.free(delete.predicates),30            .create_table => |create_table| {31                for (create_table.indexes) |index| allocator.free(@constCast(index.fields));32                allocator.free(create_table.indexes);33                allocator.free(create_table.columns);34            },35            .create_index => |create_index| allocator.free(create_index.columns),36            .drop_table => {},37            .analyze => {},38        }39        self.* = undefined;40    }4142    pub fn tableName(self: Statement) []const u8 {43        return switch (self) {44            .insert => |insert| insert.table,45            .select => |select| select.table,46            .update => |update| update.table,47            .delete => |delete| delete.table,48            .create_table => |create_table| create_table.table,49            .create_index => |create_index| create_index.table,50            .drop_table => |drop_table| drop_table.table,51            .analyze => |analyze| analyze.table,52        };53    }54};

1pub const Statement = statement.Statement;