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Groovy: A powerful, dynamic language for the JVM
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.codehaus.groovy.tools.shell.completion
import org.codehaus.groovy.antlr.GroovySourceToken
import org.codehaus.groovy.runtime.MethodClosure
import org.codehaus.groovy.tools.shell.Groovysh
/**
* Completor completing variable and method names from known variables in the shell
*/
class VariableSyntaxCompletor implements IdentifierCompletor {
final Groovysh shell
VariableSyntaxCompletor(final Groovysh shell) {
this.shell = shell
}
@Override
boolean complete(final List tokens, final List candidates) {
String prefix = tokens.last().text
Map vars = shell.interp.context.variables
boolean foundMatch = false
for (String varName in vars.keySet()) {
if (acceptName(varName, prefix)) {
if (vars.get(varName) instanceof MethodClosure) {
if (((MethodClosure) vars.get(varName)).getMaximumNumberOfParameters() > 0) {
varName += '('
} else {
varName += '()'
}
}
foundMatch = true
candidates << varName
}
}
return foundMatch
}
private static boolean acceptName(String name, String prefix) {
return (!prefix || name.startsWith(prefix)) &&
(!(name.contains('$')) && !(name.startsWith('_')))
}
}