blanco.apex.syntaxparser.parser.BlancoApexSyntaxClassParser Maven / Gradle / Ivy
/*
* Copyright 2016 Toshiki Iga
*
* 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 blanco.apex.syntaxparser.parser;
import blanco.apex.parser.token.BlancoApexSpecialCharToken;
import blanco.apex.parser.token.BlancoApexToken;
import blanco.apex.parser.token.BlancoApexWordToken;
import blanco.apex.syntaxparser.BlancoApexSyntaxConstants;
import blanco.apex.syntaxparser.BlancoApexSyntaxParserInput;
import blanco.apex.syntaxparser.BlancoApexSyntaxUtil;
import blanco.apex.syntaxparser.token.BlancoApexSyntaxBlockToken;
import blanco.apex.syntaxparser.token.BlancoApexSyntaxBlockToken.BlockType;
import blanco.apex.syntaxparser.token.BlancoApexSyntaxClassToken;
/**
* Syntax parser for class.
*
* @author Toshiki Iga
*/
public class BlancoApexSyntaxClassParser extends AbstractBlancoApexSyntaxSyntaxParser {
public static final boolean ISDEBUG = false;
protected final BlancoApexSyntaxClassToken classToken = new BlancoApexSyntaxClassToken();
/**
* Construct parser instance.
*
* @param input
* Input setting/information of syntax parser.
*/
public BlancoApexSyntaxClassParser(final BlancoApexSyntaxParserInput input) {
super(input);
}
/**
* Parse token from current position.
*
* @return Result of parse.
*/
public BlancoApexSyntaxClassToken parse() {
if (ISDEBUG)
System.out.println("class parser: begin: " + input.getIndex());
boolean isDefineArea = true;
try {
for (input.markRead(); input.availableToken(); input.markRead()) {
final BlancoApexToken sourceToken = input.readToken();
if (ISDEBUG)
System.out.println(
"class parser: process(" + input.getIndex() + "): " + sourceToken.getDisplayString());
if (sourceToken instanceof BlancoApexSpecialCharToken) {
final BlancoApexSpecialCharToken specialCharToken = (BlancoApexSpecialCharToken) sourceToken;
if (specialCharToken.getValue().equals("{")) {
input.resetRead();
isDefineArea = false;
classToken.getTokenList().add(parseClassBlock());
input.resetRead();
// prevent process.
return classToken;
} else {
classToken.getTokenList().add(sourceToken);
if (isDefineArea) {
// save define area.
classToken.getDefineList().add(sourceToken);
}
}
} else if (sourceToken instanceof BlancoApexWordToken) {
if (BlancoApexSyntaxUtil.isIncludedIgnoreCase(sourceToken.getValue(),
BlancoApexSyntaxConstants.MODIFIER_KEYWORDS)) {
input.resetRead();
classToken.setModifiers(new BlancoApexSyntaxModifierParser(input).parse());
classToken.getTokenList().add(classToken.getModifiers());
} else {
// will be class name or something.
classToken.getTokenList().add(sourceToken);
if (classToken.getName() == null && false == sourceToken.getValue().equalsIgnoreCase("class")) {
// save first name.
classToken.setName(sourceToken.getValue());
}
}
if (isDefineArea) {
// save define area.
classToken.getDefineList().add(sourceToken);
}
} else {
classToken.getTokenList().add(sourceToken);
}
}
} finally {
if (ISDEBUG)
System.out.println("class parser: end: " + input.getIndex());
// update mark
input.markRead();
}
return classToken;
}
protected BlancoApexSyntaxBlockToken parseClassBlock() {
final BlancoApexSyntaxBlockToken blockToken = new BlancoApexSyntaxBlockToken();
blockToken.setBlockType(BlockType.CLASS_DEF);
if (ISDEBUG)
System.out.println("class parser: block: begin: " + input.getIndex());
// consume '{'
blockToken.getTokenList().add(input.readToken());
for (; input.availableToken(); input.markRead()) {
final BlancoApexToken inputToken = input.readToken();
if (ISDEBUG)
System.out.println("class parser: process(" + input.getIndex() + "): " + inputToken.getDisplayString());
if (inputToken instanceof BlancoApexWordToken) {
final BlancoApexWordToken wordToken = (BlancoApexWordToken) inputToken;
if (BlancoApexSyntaxUtil.isIncludedIgnoreCase(wordToken.getValue(), new String[] { "class" })) {
// inner class found.
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxClassParser(input).parse());
continue;
}
final BlancoApexSpecialCharToken nextSpecial = BlancoApexSyntaxUtil
.getFirstSpecialCharTokenWithPreviousOne(input, new String[] { ";", "=", "(", "{" });
if (nextSpecial == null) {
blockToken.getTokenList().add(inputToken);
System.out.println("class parser: Unexpected (L88): " + input.getIndex());
} else {
if (nextSpecial.getValue().equals(";")) {
// field
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxFieldParser(input).parse());
} else if (nextSpecial.getValue().equals("=")) {
if (ISDEBUG)
System.out.println("class parser: block: =: " + input.getIndex());
// field with load value
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxFieldParser(input).parse());
} else if (nextSpecial.getValue().equals("(")) {
if (ISDEBUG)
System.out.println("class parser: block: (: " + input.getIndex());
// method
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxMethodParser(input, classToken).parse());
} else if (nextSpecial.getValue().equals("{")) {
if (ISDEBUG)
System.out.println("class parser: block: {: " + input.getIndex());
// will be class or property.
final BlancoApexToken checkNextToken = BlancoApexSyntaxUtil.getFirstTokenByValue(input,
new String[] { "class", "interface", "{" });
if (checkNextToken == null) {
System.out.println("class parser: unexpected (L101)state: " + input.getIndex());
blockToken.getTokenList().add(inputToken);
} else if (checkNextToken.getValue().equals("{")) {
// property;
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxPropertyParser(input).parse());
} else {
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxClassParser(input).parse());
}
}
}
} else if (inputToken instanceof BlancoApexSpecialCharToken) {
final BlancoApexSpecialCharToken specialCharToken = (BlancoApexSpecialCharToken) inputToken;
if (specialCharToken.getValue().equals("}")) {
// end of class def.
blockToken.getTokenList().add(inputToken);
input.markRead();
return blockToken;
} else if (specialCharToken.getValue().equals("@")) {
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxAnnotationParser(input).parse());
} else if (specialCharToken.getValue().equals("{")) {
// I'm not sure, but Apex has non-named method? Is it
// true?
input.resetRead();
blockToken.getTokenList().add(new BlancoApexSyntaxBlockParser(input, BlockType.UNDEFINED).parse());
} else {
System.out.println("class parser: unexpected state(L123): " + specialCharToken.getDisplayString());
blockToken.getTokenList().add(inputToken);
}
} else {
blockToken.getTokenList().add(inputToken);
}
}
return blockToken;
}
}