| // Copyright 2018 The CUE Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Package pkg define CUE standard packages. |
| // |
| // Many of the standard packages are modeled after and generated from the Go |
| // core packages. The types, values, and functions are defined as their Go |
| // equivalence and mapped to CUE types. |
| // |
| // Beware that some packages are defined in lesser-precision types than are |
| // typically used in CUE and thus may lead to loss of precision. |
| // |
| // All packages except those defined in the tool subdirectory are hermetic, |
| // that is depending only on a known set of inputs, and therefore can guarantee |
| // reproducible results. That is: |
| // |
| // - no reading of files contents |
| // - no querying of the file system of any kind |
| // - no communication on the network |
| // - no information about the type of environment |
| // - only reproduceable random generators |
| // |
| // Hermetic configurations allow for fast and advanced analysis that otherwise |
| // would not be possible or practical. The cue "cmd" command can be used to mix |
| // in non-hermetic influences into configurations by using packages defined |
| // in the tool subdirectory. |
| package pkg |
