/*
* Copyright 2014-present Facebook, Inc.
*
* 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 com.facebook.buck.rules.coercer;
import com.facebook.buck.io.ProjectFilesystem;
import com.facebook.buck.rules.CellPathResolver;
import com.facebook.buck.rules.SourcePath;
import java.nio.file.Path;
/** A type coercer to handle source entries in OCaml rules. */
public class OcamlSourceTypeCoercer implements TypeCoercer<OcamlSource> {
private final TypeCoercer<SourcePath> sourcePathTypeCoercer;
OcamlSourceTypeCoercer(TypeCoercer<SourcePath> sourcePathTypeCoercer) {
this.sourcePathTypeCoercer = sourcePathTypeCoercer;
}
@Override
public Class<OcamlSource> getOutputClass() {
return OcamlSource.class;
}
@Override
public boolean hasElementClass(Class<?>... types) {
return sourcePathTypeCoercer.hasElementClass(types);
}
@Override
public void traverse(OcamlSource object, Traversal traversal) {
sourcePathTypeCoercer.traverse(object.getSource(), traversal);
}
@Override
public OcamlSource coerce(
CellPathResolver cellRoots,
ProjectFilesystem filesystem,
Path pathRelativeToProjectRoot,
Object object)
throws CoerceFailedException {
if (object instanceof OcamlSource) {
return (OcamlSource) object;
}
if (object instanceof String) {
String name = (String) object;
return OcamlSource.ofNameAndSourcePath(
name,
sourcePathTypeCoercer.coerce(cellRoots, filesystem, pathRelativeToProjectRoot, object));
}
throw CoerceFailedException.simple(object, getOutputClass());
}
}