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TaskCmdXformVisitor.groovy
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TaskCmdXformVisitor.groovy
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/*
* Copyright 2013-2024, Seqera Labs
*
* 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 nextflow.ast
import static org.codehaus.groovy.ast.tools.GeneralUtils.*
import groovy.transform.CompileStatic
import org.codehaus.groovy.ast.ClassCodeVisitorSupport
import org.codehaus.groovy.ast.expr.Expression
import org.codehaus.groovy.ast.expr.GStringExpression
import org.codehaus.groovy.ast.tools.GeneralUtils
import org.codehaus.groovy.control.SourceUnit
/**
* Implements an AST xform visitor to escape and manipulate task command
* special value
*
* @author Paolo Di Tommaso <paolo.ditommaso@gmail.com>
*/
@CompileStatic
class TaskCmdXformVisitor extends ClassCodeVisitorSupport {
private SourceUnit unit
TaskCmdXformVisitor(SourceUnit unit) { this.unit = unit }
@Override
protected SourceUnit getSourceUnit() { unit }
/**
* Intercepts Gstring commands to apply special formatting
* such escaping blanks in path
*/
@Override
void visitGStringExpression(GStringExpression expr) {
for(int i=0; i<expr.values.size(); i++)
expr.values[i] = interceptX(expr.values[i])
// proceed with the gstring invocation
super.visitGStringExpression(expr)
}
/**
* {@link LangHelpers#applyPathEscapeAware(java.lang.Object)}
*/
static protected Expression interceptX(Expression expr) {
GeneralUtils.callX(
classX(LangHelpers), 'applyPathEscapeAware',args(expr))
}
}