From e2b62bb58e59fecd31e7aa7145b5b33a935e3924 Mon Sep 17 00:00:00 2001
From: jeffcheasey88 <66554203+jeffcheasey88@users.noreply.github.com>
Date: Mon, 11 Sep 2023 23:59:31 +0200
Subject: [PATCH] [Build] Modifier

---
 .../peeratcode/parser/java/JavaElement.java   |   4 +
 .../peeratcode/parser/java/JavaParser.java    |   2 +-
 .../peeratcode/parser/java/ModifierTests.java | 140 ++++++++++++++++++
 3 files changed, 145 insertions(+), 1 deletion(-)
 create mode 100644 test/be/jeffcheasey88/peeratcode/parser/java/ModifierTests.java

diff --git a/src/be/jeffcheasey88/peeratcode/parser/java/JavaElement.java b/src/be/jeffcheasey88/peeratcode/parser/java/JavaElement.java
index edfd466..f406ec3 100644
--- a/src/be/jeffcheasey88/peeratcode/parser/java/JavaElement.java
+++ b/src/be/jeffcheasey88/peeratcode/parser/java/JavaElement.java
@@ -1,5 +1,9 @@
 package be.jeffcheasey88.peeratcode.parser.java;
 
+import be.jeffcheasey88.peeratcode.parser.Bag;
+
 public class JavaElement {
+	
+	Bag bag;
 
 }
diff --git a/src/be/jeffcheasey88/peeratcode/parser/java/JavaParser.java b/src/be/jeffcheasey88/peeratcode/parser/java/JavaParser.java
index 20dea82..343c91f 100644
--- a/src/be/jeffcheasey88/peeratcode/parser/java/JavaParser.java
+++ b/src/be/jeffcheasey88/peeratcode/parser/java/JavaParser.java
@@ -106,7 +106,7 @@ public class JavaParser extends Parser<JavaElement> {
 						bag.set(current == null ? m : current+m);
 					})) mod = true;
 			return mod;
-		}).end((a,b) -> a);
+		}).end((a,b) -> null);
 		
 		//TYPE
 		StateTree<JavaElement> type = new StateTree<JavaElement>();
diff --git a/test/be/jeffcheasey88/peeratcode/parser/java/ModifierTests.java b/test/be/jeffcheasey88/peeratcode/parser/java/ModifierTests.java
new file mode 100644
index 0000000..5e43ca9
--- /dev/null
+++ b/test/be/jeffcheasey88/peeratcode/parser/java/ModifierTests.java
@@ -0,0 +1,140 @@
+package be.jeffcheasey88.peeratcode.parser.java;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.BufferedReader;
+import java.lang.reflect.Modifier;
+
+import org.junit.jupiter.api.Test;
+
+import be.jeffcheasey88.peeratcode.parser.Parser;
+import be.jeffcheasey88.peeratcode.parser.Token;
+import be.jeffcheasey88.peeratcode.parser.TokenType;
+import be.jeffcheasey88.peeratcode.parser.TokenValidator;
+import be.jeffcheasey88.peeratcode.parser.Tokenizer;
+import be.jeffcheasey88.peeratcode.parser.java.JavaElement;
+import be.jeffcheasey88.peeratcode.parser.state.StateTree;
+
+public class ModifierTests{
+	
+	public static Tokenizer TOKENIZER = new Tokenizer(){
+		@Override
+		public void parse(BufferedReader reader) throws Exception{
+			int lineNumber = 0;
+			String line;
+			boolean longCommentary = false;
+			while((line = reader.readLine()) != null){
+				lineNumber++;
+				
+				for(int i = 0; i < line.length(); i++){
+					char c = line.charAt(i);
+					if(longCommentary){
+						if(c == '*' && (i < line.length()-1 && line.charAt(i+1) == '/')){
+							longCommentary = false;
+							i++;
+						}
+						continue;
+					}
+					Token token;
+					if(isNameValid(c)){
+						String value = "";
+						int j = i;
+						for(; j < line.length(); j++){
+							c = line.charAt(j);
+							if(isNameValid(c)) value+=c;
+							else break;
+						}
+						token = new Token(lineNumber, i+1, value, TokenType.NAME);
+						i = j-1;
+					}else if(Character.isWhitespace(c)) continue;
+					else{
+						if(c == '/' && (i < line.length()-1 && line.charAt(i+1) == '/')) break;
+						if(c == '/' && (i < line.length()-1 && line.charAt(i+1) == '*')){
+							longCommentary = true;
+							continue;
+						}
+						token = new Token(lineNumber, i+1, ""+c, TokenType.DELIMITER);
+					}
+					getTokens().add(token);
+				}
+			}
+		}
+		
+		private boolean isNameValid(char c) {
+			return Character.isAlphabetic(c) || Character.isDigit(c) || c == '_' || c == '$';
+		}
+	};
+	
+	public static StateTree<JavaElement> get(){
+		StateTree<JavaElement> modifier = new StateTree<JavaElement>();
+		modifier.then((validator) -> {
+			boolean mod = false;
+			while(validator.validate(
+					(token) -> getModifier(token.getValue()) > 0, 
+					(bag, token) -> {
+						int m = getModifier(token.getValue());
+						Integer current = bag.get();
+						bag.set(current == null ? m : current+m);
+					})) mod = true;
+			return mod;
+		}).end((a,b) -> {
+//			a.bag = b;
+			return null;
+		});
+		
+		return modifier;
+	}
+	
+	public static int getModifier(String modifier){
+		switch(modifier){
+			case "public": return Modifier.PUBLIC;
+			case "private": return Modifier.PRIVATE;
+			case "protected": return Modifier.PROTECTED;
+			case "static": return Modifier.STATIC;
+			case "final": return Modifier.FINAL;
+			case "synchronized": return Modifier.SYNCHRONIZED;
+			case "volatile": return Modifier.VOLATILE;
+			case "transient": return Modifier.TRANSIENT;
+			case "native": return Modifier.NATIVE;
+			case "abstract": return Modifier.ABSTRACT;
+			case "strictfp": return Modifier.STRICT;
+			case "default": return Modifier.STRICT;
+			default: break;
+		}
+		return 0;
+	}
+	
+	private static Parser<JavaElement> parser = new Parser<JavaElement>(){
+		{
+			setTokenizer(TOKENIZER);
+			
+			setStateTree(get());
+		}
+	};
+	
+	JavaElement testCase(String value) throws Exception{
+		TokenValidator.TOKENS = 0;
+		TokenValidator.MAX_VALIDATE = 0;
+		
+		JavaElement result = new JavaElement();
+		
+		parser.parse(value, result);
+		
+		assertEquals(TokenValidator.TOKENS, TokenValidator.MAX_VALIDATE);
+		
+		return result;
+	}
+	
+	@Test
+	void oneModifier() throws Exception{
+		JavaElement element = testCase("public");
+//		assertEquals(Modifier.PUBLIC, element.bag.<Integer>get());
+	}
+	
+	@Test
+	void multiple() throws Exception{
+		JavaElement element = testCase("public static final ");
+//		assertEquals(Modifier.PUBLIC + Modifier.STATIC + Modifier.FINAL, element.bag.<Integer>get());
+	}
+
+}