Method emitUnaryOp

source/python.js:17194–17207

(tree, magicMethod, opSymbol)

                return out;
            }
            emitUnaryOp(tree, magicMethod, opSymbol) {
                const inputs = [tree.operand];
                const named_values = this.getNamedValues(inputs, /*maybe_unpack=*/false);
                const val = torch._C.asSimple(torch._C.makeMagic(magicMethod, new torch._C.BuiltinFunction(opSymbol, null)).call(tree.range(), this.method, named_values, [], 0));
                if (val.node().kind() !== opSymbol) {
                    return val;
                }
                const maybe_out_stack = torch._C.runNodeIfInputsAreConstant(val.node());
                if (!maybe_out_stack) {
                    return val;
                }
                torch._C.TORCH_INTERNAL_ASSERT(maybe_out_stack.length === 1);
                return this.graph.insertConstant(maybe_out_stack[0], tree);
            }
            emitAssignment(stmt) {
                if (stmt instanceof ast.AnnAssign) {
                    return this.emitSingleAssignment(stmt);