Method emitToBool

source/python.js:17182–17193

(loc, v)

                }
            }
            emitToBool(loc, v) {
                let out = null;
                const bool_cast = this.environment_stack.getSugaredVar('bool', loc);
                out = torch._C.asSimple(bool_cast.call(loc, this.method, [new torch._C.NamedValue(v)], [], 0));
                if (!out) {
                    throw new python.Error('Could not cast value to bool.');
                }
                if (!out.type().isSubtypeOf(torch.BoolType.get())) {
                    throw new python.Error('Expected a bool expression for condition.');
                }
                return out;
            }
            emitUnaryOp(tree, magicMethod, opSymbol) {
                const inputs = [tree.operand];
                const named_values = this.getNamedValues(inputs, /*maybe_unpack=*/false);