Method emitListLiteral

source/python.js:17733–17778

(ll, type_hint)

                throw new python.Error(`Unsupported constant type.`);
            }
            emitListLiteral(ll, type_hint) {
                type_hint = type_hint || null;
                const values = this.getValues(ll.elts, true);
                if (values.length === 0 && type_hint === null) {
                    throw new python.Error('Not implemented.');
                }
                let inferred_elem_type = torch.TensorType.get();
                const refined_type_hint = { _: type_hint };
                const annotated_union_type = refined_type_hint._ && refined_type_hint._.isUnionType() ? refined_type_hint._ : null;
                const all_candidates = { _: [] };
                if (refined_type_hint._) {
                    const do_if_type_match = () => {
                        inferred_elem_type = refined_type_hint._.expect(torch.ListType).getElementType();
                    };
                    const type_match = (t) => t.isSubtypeOf(torch.Type.get('AnyListType'));
                    this.refineAndSetUnionTypeHintOrPopulateCandidatesVector(type_hint, refined_type_hint, all_candidates, 'List', ll, type_match, do_if_type_match, do_if_type_match);
                    if (all_candidates._.length > 0 && values.len === 0) {
                        throw new python.Error('Cannot assign an empty list.');
                    }
                }
                if (values.length !== 0) {
                    const types = values.map((v) => v.type());
                    const elem_type_hint = refined_type_hint._ && refined_type_hint._.kind() === 'ListType' ? refined_type_hint._.getElementType() : null;
                    const unified_elem_type = torch._C.unifyTypeList(types, null /*nowhere*/, /*default_to_union=*/true, elem_type_hint);
                    if (!refined_type_hint._ && unified_elem_type.kind() === 'UnionType') {
                        throw new python.Error('Not implemented.');
                    }
                    if (all_candidates._.length === 0 && refined_type_hint._ && !unified_elem_type.isSubtypeOf(inferred_elem_type)) {
                        throw new python.Error('Not implemented.');
                    }
                    if (all_candidates._.length !== 0) {
                        this.refineAndSetListTypeHintFromCandidatesVector(all_candidates, type_hint, refined_type_hint._, unified_elem_type, ll);
                        inferred_elem_type = refined_type_hint._.expect(torch.ListType).getElementType();
                    }
                    if (!refined_type_hint._) {
                        inferred_elem_type = unified_elem_type;
                    }
                }
                let result = this.graph.insertNode(this.graph.createList(inferred_elem_type, values));
                if (annotated_union_type) {
                    const n = this.graph.insertNode(this.graph.create('prim::unchecked_cast', [result.output()]));
                    n.output().setType(annotated_union_type);
                    result = n;
                }
                return result.output();
            }
            insertRefinements(loc, ref) {
                for (const r of ref.activeRefinements()) {
                    const v = this.environment_stack.getVar(r.identifier(), loc);