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Mini Java编译器（二）发表日期：2008-1-5
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二、Mini Java的文法 BNF Goal ::= MainClass ( TypeDeclaration )* <EOF> MainClass ::= "class" Identifier "{" "public" "static" "void" "main" "(" "String" "[" "]" Identifier ")" "{" PrintStatement "}" "}" TypeDeclaration ::= ClassDeclaration ClassExtendsDeclaration ClassDeclaration ::= "class" Identifier "{" ( VarDeclaration )* ( MethodDeclaration )* "}" ClassExtendsDeclaration ::= "class" Identifier "extends" Identifier "{" ( VarDeclaration )* ( MethodDeclaration )* "}" VarDeclaration ::= Type Identifier ";" MethodDeclaration ::= "public" Type Identifier "(" ( FormalParameterList )? ")" "{" ( VarDeclaration )* ( Statement )* "return" EXPression ";" "}" FormalParameterList ::= FormalParameter ( FormalParameterRest )* FormalParameter ::= Type Identifier FormalParameterRest ::= "," FormalParameter Type ::= ArrayType BooleanType |
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