cuelang.org/go@v0.10.1/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  	// TODO: we could access these directly if we can use runtime.Runtime directly.
    34  	ctx.Version, ctx.Config = r.Settings()
    35  	return &Unifier{r: r, e: ctx}
    36  }
    37  
    38  type Unifier struct {
    39  	r adt.Runtime
    40  	e *adt.OpContext
    41  }
    42  
    43  func (e *Unifier) Stats() *stats.Counts {
    44  	return e.e.Stats()
    45  }
    46  
    47  // TODO: Note: NewContext takes essentially a cue.Value. By making this
    48  // type more central, we can perhaps avoid context creation.
    49  func NewContext(r adt.Runtime, v *adt.Vertex) *adt.OpContext {
    50  	return adt.New(v, &adt.Config{
    51  		Runtime: r,
    52  		Format:  nodeFormat,
    53  	})
    54  }
    55  
    56  func (e *Unifier) NewContext(v *adt.Vertex) *adt.OpContext {
    57  	return NewContext(e.r, v)
    58  }
    59  
    60  var printConfig = &debug.Config{Compact: true}
    61  
    62  func nodeFormat(r adt.Runtime, n adt.Node) string {
    63  	return debug.NodeString(r, n, printConfig)
    64  }