/*
* Copyright 2011 Google 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.google.common.css.compiler.passes;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.css.compiler.ast.CssLiteralNode;
import com.google.common.css.compiler.ast.CssValueNode;
import com.google.common.css.compiler.ast.ErrorManager;
import com.google.common.css.compiler.ast.GssFunction;
import com.google.common.css.compiler.ast.testing.NewFunctionalTestBase;
import java.util.List;
import java.util.Map;
/**
* Unit tests for {@link ResolveCustomFunctionNodes}.
*
*/
public class ResolveCustomFunctionNodesWithDefsTest
extends NewFunctionalTestBase {
protected boolean allowUnknownFunctions = false;
protected Map<String, GssFunction> createTestFunctionMap() {
/*
* The explicit type parameters required here due to a bug in the JDK used
* to compile the open-source test.
*/
return ImmutableMap.<String, GssFunction>of(
"testMultipleArg", new SampleMultipleArgsFunc());
}
@Override
protected void runPass() {
new CreateDefinitionNodes(
tree.getMutatingVisitController(), errorManager).runPass();
new CreateConstantReferences(tree.getMutatingVisitController()).runPass();
// Collect constant definitions.
CollectConstantDefinitions collectConstantDefinitionsPass =
new CollectConstantDefinitions(tree);
collectConstantDefinitionsPass.runPass();
// Replace constant references.
new ReplaceConstantReferences(tree,
collectConstantDefinitionsPass.getConstantDefinitions(),
true /* removeDefs */, errorManager,
true /* allowUndefinedConstants */).runPass();
new ResolveCustomFunctionNodes(
tree.getMutatingVisitController(), errorManager,
createTestFunctionMap(), allowUnknownFunctions,
ImmutableSet.<String>of() /* allowedNonStandardFunctions */)
.runPass();
}
public void testMultipleArgs() throws Exception {
parseAndRun("@def BAR 3px left top;" +
"A { foo: testMultipleArg(first, 30px, BAR) }");
assertEquals("[(first) (30px) (3px left top)]",
getFirstPropertyValue().toString());
}
/**
* Sample GssFunction implementation that accept 3 args.
*/
private static class SampleMultipleArgsFunc implements GssFunction {
@Override
public Integer getNumExpectedArguments() {
return 3;
}
@Override
public List<CssValueNode> getCallResultNodes(
List<CssValueNode> args, ErrorManager errorManager) {
Preconditions.checkState(args.size() == 3,
"Exactly 3 args expected: firstString, secondNumeric, thirdString");
List<String> argsStr = ImmutableList.of(
args.get(0).toString(),
args.get(1).toString(),
args.get(2).toString());
CssLiteralNode result = new CssLiteralNode(getCallResultString(argsStr),
args.get(0).getSourceCodeLocation());
return ImmutableList.of((CssValueNode) result);
}
@Override
public String getCallResultString(List<String> args) {
Preconditions.checkState(args.size() == 3,
"Exactly 3 args expected: startColor, endColor, defaultBg");
return "(" + args.get(0) + ") (" + args.get(1) +
") (" + args.get(2) + ")";
}
}
}