houqp commented on a change in pull request #1849:
URL: https://github.com/apache/arrow-datafusion/pull/1849#discussion_r809663540
##########
File path: datafusion/src/row/reader.rs
##########
@@ -260,6 +289,136 @@ fn read_row(row: &RowReader, batch: &mut
MutableRecordBatch, schema: &Arc<Schema
}
}
+#[cfg(feature = "jit")]
+fn get_array(
+ batch: &mut MutableRecordBatch,
+ col_idx: usize,
+) -> &mut Box<dyn ArrayBuilder> {
+ let arrays: &mut [Box<dyn ArrayBuilder>] = batch.arrays.as_mut();
+ &mut arrays[col_idx]
+}
+
+#[cfg(feature = "jit")]
+macro_rules! reg_fn {
+ ($ASS:ident, $FN: ident, $PARAM: expr, $RET: expr) => {
+ $ASS.register_extern_fn(fn_name($FN), $FN as *const u8, $PARAM, $RET)?;
+ };
+}
+
+#[cfg(feature = "jit")]
+fn fn_name<T>(f: T) -> &'static str {
+ fn type_name_of<T>(_: T) -> &'static str {
+ std::any::type_name::<T>()
+ }
+ let name = type_name_of(f);
+
+ // Find and cut the rest of the path
+ match &name.rfind(':') {
+ Some(pos) => &name[pos + 1..name.len()],
+ None => name,
+ }
+}
+
+#[cfg(feature = "jit")]
+fn register_read_functions(asm: &Assembler) -> Result<()> {
+ let reader_param = vec![PTR, I64, PTR];
+ reg_fn!(asm, get_array, vec![PTR, I64], Some(PTR));
+ reg_fn!(asm, read_field_bool, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u8, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u16, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u32, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u64, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i8, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i16, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i32, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i64, reader_param.clone(), None);
+ reg_fn!(asm, read_field_f32, reader_param.clone(), None);
+ reg_fn!(asm, read_field_f64, reader_param.clone(), None);
+ reg_fn!(asm, read_field_date32, reader_param.clone(), None);
+ reg_fn!(asm, read_field_date64, reader_param.clone(), None);
+ reg_fn!(asm, read_field_utf8, reader_param.clone(), None);
+ reg_fn!(asm, read_field_binary, reader_param.clone(), None);
+ reg_fn!(asm, read_field_bool_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u8_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u16_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u32_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_u64_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i8_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i16_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i32_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_i64_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_f32_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_f64_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_date32_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_date64_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_utf8_nf, reader_param.clone(), None);
+ reg_fn!(asm, read_field_binary_nf, reader_param, None);
+ Ok(())
+}
+
+#[cfg(feature = "jit")]
+fn gen_read_row(schema: &Arc<Schema>, assembler: &Assembler) -> Result<*const
u8> {
+ use DataType::*;
+ let mut builder = assembler
+ .new_func_builder("read_row")
+ .param("row", PTR)
+ .param("batch", PTR);
+ let mut b = builder.enter_block();
+ for (i, f) in schema.fields().iter().enumerate() {
+ let dt = f.data_type();
+ // let c0 = get_array()
Review comment:
can be deleted?
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