parser implement varibale initialization

Test/TestParser.hs

@@ -74,6 +74,12 @@ testExpressionIntLiteral = TestCase $
 testFieldWithInitialization = TestCase $
     assertEqual "expect Class with initialized field" [Class "WithInitField" [] [VariableDeclaration "int" "number" $ Just $ IntegerLiteral 3]] $
     parse [CLASS,IDENTIFIER "WithInitField",LBRACKET,INT,IDENTIFIER "number",ASSIGN,INTEGERLITERAL 3,SEMICOLON,RBRACKET]
+testLocalBoolWithInitialization = TestCase $
+    assertEqual "expect block with with initialized local var" (Block [LocalVariableDeclaration $ VariableDeclaration "boolean" "b" $ Just $ BooleanLiteral False]) $
+    parseBlock [LBRACKET,BOOLEAN,IDENTIFIER "b",ASSIGN,BOOLLITERAL False,SEMICOLON,RBRACKET]
+testFieldNullWithInitialization = TestCase $
+    assertEqual "expect Class with initialized field" [Class "WithInitField" [] [VariableDeclaration "Object" "bar" $ Just NullLiteral]] $
+    parse [CLASS,IDENTIFIER "WithInitField",LBRACKET,IDENTIFIER "Object",IDENTIFIER "bar",ASSIGN,NULLLITERAL,SEMICOLON,RBRACKET]
 
 tests = TestList [
     testSingleEmptyClass,
@@ -96,5 +102,7 @@ tests = TestList [
     testNestedBlocks,
     testBlockWithEmptyStatement,
     testExpressionIntLiteral,
-    testFieldWithInitialization
+    testFieldWithInitialization,
+    testLocalBoolWithInitialization,
+    testFieldNullWithInitialization
     ]

src/Parser/JavaParser.y

@@ -328,9 +328,9 @@ exclusiveorexpression : andexpression { $1 }
                 --  | exclusiveorexpression XOR andexpression { }
 
 literal          : INTLITERAL { IntegerLiteral $1 }
-                --  | BOOLLITERAL { }
+                 | BOOLLITERAL { BooleanLiteral $1 }
-                --  | CHARLITERAL { }
+                 | CHARLITERAL { CharacterLiteral $1 }
-                --  | JNULL { }
+                 | JNULL { NullLiteral }
 
 castexpression         : LBRACE  primitivetype  RBRACE  unaryexpression { }
                   | LBRACE  expression  RBRACE  unaryexpressionnotplusminus{ }