| Mini Java编译器（二）__教程 |
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| 日期：2007-5-20 1:28:18 人气：115 [大 中 小] |
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"if" "(" Expression ")" Statement "else" Statement
WhileStatement
::=
"while" "(" Expression ")" Statement
PrintStatement
::=
"System.out.println" "(" Expression ")" ";"
Expression
::=
AndExpression
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CompareExpression
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PlusExpression
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MinusExpression
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TimesExpression
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ArrayLookup
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ArrayLength
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MessageSend
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PrimaryExpression
AndExpression
::=
PrimaryExpression "&&" PrimaryExpression
CompareExpression
::=
PrimaryExpression "<" PrimaryExpression
PlusExpression
::=
PrimaryExpression "+" PrimaryExpression
MinusExpression
::=
PrimaryExpression "-" PrimaryExpression
TimesExpression
::=
PrimaryExpression "*" PrimaryExpression
ArrayLookup
::=
PrimaryExpression "[" PrimaryExpression "]"
ArrayLength
::=
PrimaryExpression "." "length"
MessageSend
::=
PrimaryExpression "." Identifier "(" ( ExpressionList )? ")"
ExpressionList
::=
Expression ( ExpressionRest )*
ExpressionRest
::=
"," Expression
PrimaryExpression
::=
IntegerLiteral
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TrueLiteral
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FalseLiteral
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Identifier
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ThisExpression
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ArrayAllocationExpression
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AllocationExpression
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| 出处：本站原创 作者：佚名 |
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