cuelang.org/go@v0.13.0/internal/core/eval/eval.go (about)

     1  // Copyright 2021 CUE Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package eval
    16  
    17  import (
    18  	"cuelang.org/go/cue/stats"
    19  	"cuelang.org/go/internal/core/adt"
    20  	"cuelang.org/go/internal/core/debug"
    21  )
    22  
    23  func Evaluate(r adt.Runtime, v *adt.Vertex) {
    24  	c := adt.New(v, &adt.Config{
    25  		Runtime: r,
    26  		Format:  nodeFormat,
    27  	})
    28  	v.Finalize(c)
    29  }
    30  
    31  func New(r adt.Runtime) *Unifier {
    32  	ctx := NewContext(r, nil)
    33  	return &Unifier{r: r, e: ctx}
    34  }
    35  
    36  type Unifier struct {
    37  	r adt.Runtime
    38  	e *adt.OpContext
    39  }
    40  
    41  func (e *Unifier) Stats() *stats.Counts {
    42  	return e.e.Stats()
    43  }
    44  
    45  // TODO: Note: NewContext takes essentially a cue.Value. By making this
    46  // type more central, we can perhaps avoid context creation.
    47  func NewContext(r adt.Runtime, v *adt.Vertex) *adt.OpContext {
    48  	return adt.New(v, &adt.Config{
    49  		Runtime: r,
    50  		Format:  nodeFormat,
    51  	})
    52  }
    53  
    54  func (e *Unifier) NewContext(v *adt.Vertex) *adt.OpContext {
    55  	return NewContext(e.r, v)
    56  }
    57  
    58  var printConfig = &debug.Config{Compact: true}
    59  
    60  func nodeFormat(r adt.Runtime, n adt.Node) string {
    61  	return debug.NodeString(r, n, printConfig)
    62  }