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BNF for MiniJava

NON-TERMINALS

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Goal ::= MainClass ( ClassDeclaration )* <EOF>
MainClass ::= "class" Identifier "{" "public" "static" "void" "main" "(" "String" "[" "]" Identifier ")" "{" Statement "}" "}"
ClassDeclaration ::= "class" Identifier ( "extends" Identifier )? "{" ( VarDeclaration )* ( MethodDeclaration )* "}"
VarDeclaration ::= Type Identifier ";"
MethodDeclaration ::= "public" Type Identifier "(" ( Type Identifier ( "," Type Identifier )* )? ")" "{" ( VarDeclaration )* ( Statement )* "return" Expression ";" "}"
Type ::= "int" "[" "]"
| "boolean"
| "int"
| Identifier
Statement ::= "{" ( Statement )* "}"
| "if" "(" Expression ")" Statement "else" Statement
| "while" "(" Expression ")" Statement
| "System.out.println" "(" Expression ")" ";"
| Identifier "=" Expression ";"
| Identifier "[" Expression "]" "=" Expression ";"
Expression ::= Expression ( "&&" | "<" | "+" | "-" | "*" ) Expression
| Expression "[" Expression "]"
| Expression "." "length"
| Expression "." Identifier "(" ( Expression ( "," Expression )* )? ")"
| <INTEGER_LITERAL>
| "true"
| "false"
| Identifier
| "this"
| "new" "int" "[" Expression "]"
| "new" Identifier "(" ")"
| "!" Expression
| "(" Expression ")"
Identifier ::= <IDENTIFIER>
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