/
root.go
85 lines (65 loc) · 2.54 KB
/
root.go
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// Copyright 2019 Google LLC
//
// 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 transpiler
import (
"github.com/GoogleCloudPlatform/healthcare-data-harmonization/mapping_language/parser" /* copybara-comment: parser */
mpb "github.com/GoogleCloudPlatform/healthcare-data-harmonization/mapping_engine/proto" /* copybara-comment: mapping_go_proto */
)
const (
rootEnvInputName = "$root"
// TODO(): Revert after sunset.
legacyRootEnvInputName = "root"
)
func (t *transpiler) VisitRoot(ctx *parser.RootContext) interface{} {
program := &mpb.MappingConfig{}
// Parse each root item with its corresponding rule and add them to the MappingConfig.
if ctx.PostProcess() != nil {
program = ctx.PostProcess().Accept(t).(*mpb.MappingConfig)
}
t.environment = newEnv("", []string{rootEnvInputName}, []string{})
// TODO(): Remove this env and the callsite after sunset.
t.environment.args[legacyRootEnvInputName] = t.environment.args[rootEnvInputName]
for i := range ctx.AllMapping() {
ctx.Mapping(i).Accept(t)
}
for i := range ctx.AllProjectorDef() {
p := ctx.ProjectorDef(i).Accept(t).(*mpb.ProjectorDefinition)
program.Projector = append(program.Projector, p)
}
program.Projector = append(program.Projector, t.projectors...)
program.RootMapping = t.environment.mapping
return program
}
func (t *transpiler) VisitPostProcessName(ctx *parser.PostProcessNameContext) interface{} {
mc := &mpb.MappingConfig{
PostProcess: &mpb.MappingConfig_PostProcessProjectorName{
PostProcessProjectorName: getTokenText(ctx.TOKEN()),
},
}
if t.includeSourcePositions {
mc.PostProcessMeta = makeSourcePositionMeta(ctx, mc.PostProcessMeta)
}
return mc
}
func (t *transpiler) VisitPostProcessInline(ctx *parser.PostProcessInlineContext) interface{} {
mc := &mpb.MappingConfig{
PostProcess: &mpb.MappingConfig_PostProcessProjectorDefinition{
PostProcessProjectorDefinition: ctx.ProjectorDef().Accept(t).(*mpb.ProjectorDefinition),
},
}
if t.includeSourcePositions {
mc.PostProcessMeta = makeSourcePositionMeta(ctx, mc.PostProcessMeta)
}
return mc
}