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Merged
larshp merged 1 commit into from
Apr 7, 2026
Merged

array filter() #62

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32 changes: 32 additions & 0 deletions src/zcl_mjs.clas.abap
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Original file line number Diff line number Diff line change
Expand Up @@ -2527,6 +2527,38 @@ CLASS zcl_mjs IMPLEMENTATION.
ENDIF.
ENDIF.
RETURN.
WHEN `filter`.
IF lines( it_args ) > 0.
DATA ls_flt_cb TYPE zif_mjs=>ty_value.
READ TABLE it_args INDEX 1 INTO ls_flt_cb.
IF ls_flt_cb-type = 4 AND ls_flt_cb-fn IS BOUND.
DATA lo_flt_arr TYPE REF TO zcl_mjs_arr.
CREATE OBJECT lo_flt_arr.
DATA lv_flt_idx TYPE i VALUE 0.
LOOP AT is_obj-arr->items INTO DATA(lr_flt_item).
DATA ls_flt_elem TYPE zif_mjs=>ty_value.
ls_flt_elem = unbox_value( lr_flt_item ).
DATA lt_flt_args TYPE zif_mjs=>tt_value_slots.
CLEAR lt_flt_args.
APPEND ls_flt_elem TO lt_flt_args.
APPEND number_val( CONV f( lv_flt_idx ) ) TO lt_flt_args.
APPEND is_obj TO lt_flt_args.
DATA(ls_flt_result) = call_function(
ir_fn = ls_flt_cb-fn
it_args = lt_flt_args
io_env = io_env ).
IF is_true( ls_flt_result ) = abap_true.
lo_flt_arr->push( lr_flt_item ).
ENDIF.
lv_flt_idx = lv_flt_idx + 1.
ENDLOOP.
rs_val-type = 7.
rs_val-arr = lo_flt_arr.
ENDIF.
ELSE.
rs_val = array_val( VALUE #( ) ).
ENDIF.
RETURN.
WHEN `splice`.
DATA lt_spl_args TYPE zif_mjs=>tt_value_slots.
lt_spl_args = it_args.
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12 changes: 12 additions & 0 deletions src/zcl_mjs.clas.testclasses.abap
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Expand Up @@ -101,6 +101,7 @@ CLASS ltcl_test DEFINITION FOR TESTING
METHODS test_set_has FOR TESTING RAISING zcx_mjs_runtime.
METHODS test_namespace_class FOR TESTING RAISING zcx_mjs_runtime.
METHODS test_class_typeof FOR TESTING RAISING zcx_mjs_runtime.
METHODS test_array_filter FOR TESTING RAISING zcx_mjs_runtime.

METHODS test262 FOR TESTING RAISING zcx_mjs_runtime.

Expand Down Expand Up @@ -856,6 +857,17 @@ CLASS ltcl_test IMPLEMENTATION.
exp = |function| ).
ENDMETHOD.

METHOD test_array_filter.
DATA(lv_nl) = cl_abap_char_utilities=>newline.
DATA(lv_js) =
`const arr = [1, 2, 3, 4, 5];` && lv_nl &&
`const filtered = arr.filter(x => x > 2);` && lv_nl &&
`console.log(filtered.length);`.
cl_abap_unit_assert=>assert_equals(
act = trim( zcl_mjs=>eval( lv_js ) )
exp = |3| ).
ENDMETHOD.

METHOD test262.
DATA(lv_nl) = cl_abap_char_utilities=>newline.
DATA(lv_js) =
Expand Down
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