Ognl源码 真的是很好的东西，请大量下载

/* Generated By:JJTree&JavaCC: Do not edit this line. OgnlParser.java */ package ognl; /** * OgnlParser is a JavaCC parser class; it translates OGNL expressions into abstract * syntax trees (ASTs) that can then be interpreted by the getValue and setValue methods. */ public class OgnlParser/*@bgen(jjtree)*/implements OgnlParserTreeConstants, OgnlParserConstants {/*@bgen(jjtree)*/ protected JJTOgnlParserState jjtree = new JJTOgnlParserState(); /** * This is the top-level construct of OGNL. */ final public Node topLevelExpression() throws ParseException { expression(); jj_consume_token(0); {if (true) return jjtree.rootNode();} throw new Error("Missing return statement in function"); } // sequence (level 14) final public void expression() throws ParseException { assignmentExpression(); label_1: while (true) { switch ((jj_ntk==-1)?jj_ntk():jj_ntk) { case 1: ; break; default: jj_la1[0] = jj_gen; break label_1; } jj_consume_token(1); ASTSequence jjtn001 = new ASTSequence(JJTSEQUENCE); boolean jjtc001 = true; jjtree.openNodeScope(jjtn001); try { assignmentExpression(); } catch (Throwable jjte001) { if (jjtc001) { jjtree.clearNodeScope(jjtn001); jjtc001 = false; } else { jjtree.popNode(); } if (jjte001 instanceof RuntimeException) { {if (true) throw (RuntimeException)jjte001;} } if (jjte001 instanceof ParseException) { {if (true) throw (ParseException)jjte001;} } {if (true) throw (Error)jjte001;} } finally { if (jjtc001) { jjtree.closeNodeScope(jjtn001, 2); } } } } // assignment expression (level 13) final public void assignmentExpression() throws ParseException { conditionalTestExpression(); switch ((jj_ntk==-1)?jj_ntk():jj_ntk) { case 2: jj_consume_token(2); ASTAssign jjtn001 = new ASTAssign(JJTASSIGN); boolean jjtc001 = true; jjtree.openNodeScope(jjtn001); try { assignmentExpression(); } catch (Throwable jjte001) { if (jjtc001) { jjtree.clearNodeScope(jjtn001); jjtc001 = false; } else { jjtree.popNode(); } if (jjte001 instanceof RuntimeException) { {if (true) throw (RuntimeException)jjte001;} } if (jjte001 instanceof ParseException) { {if (true) throw (ParseException)jjte001;} } {if (true) throw (Error)jjte001;} } finally { if (jjtc001) { jjtree.closeNodeScope(jjtn001, 2); } } break; default: jj_la1[1] = jj_gen; ; } } // conditional test (level 12) final public void conditionalTestExpression() throws ParseException { logicalOrExpression(); switch ((jj_ntk==-1)?jj_ntk():jj_ntk) { case 3: jj_consume_token(3); conditionalTestExpression(); jj_consume_token(4); ASTTest jjtn001 = new ASTTest(JJTTEST); boolean jjtc001 = true; jjtree.openNodeScope(jjtn001); try { conditionalTestExpression(); } catch (Throwable jjte001) { if (jjtc001) { jjtree.clearNodeScope(jjtn001); jjtc001 = false; } else { jjtree.popNode(); } if (jjte001 instanceof RuntimeException) { {if (true) throw (RuntimeException)jjte001;} } if (jjte001 instanceof ParseException) { {if (true) throw (ParseException)jjte001;} } {if (true) throw (Error)jjte001;} } finally { if (jjtc001) { jjtree.closeNodeScope(jjtn001, 3); } } break; default: jj_la1[2] = jj_gen; ; } } // logical or (||) (level 11) final public void logicalOrExpression() throws ParseException { logicalAndExpression(); label_2: while (true) { switch ((jj_ntk==-1)?jj_ntk():jj_ntk) { case 5: case 6: ; break; default: jj_la1[3] = jj_gen; break label_2; } switch ((jj_ntk==-1)?jj_ntk():jj_ntk) { case 5: jj_consume_token(5); break; case 6: jj_consume_token(6); break; default: jj_la1[4] = jj_gen; jj_consume_token(-1); throw new ParseException(); } ASTOr jjtn001 = new ASTOr(JJTOR); boolean jjtc001 = true; jjtree.openNodeScope(jjtn001); try { logicalAndExpression(); } catch (Throwable jjte001) { if (jjtc001) { jjtree.clearNodeScope(jjtn001); jjtc001 = false; } else { jjtree.popNode(); } if (jjte001 instanceof RuntimeException) { {if (true) throw (RuntimeException)jjte001;} } if (jjte001 instanceof ParseException) { {if (true) throw (ParseException)jjte001;} } {if (true) throw (Error)jjte001;} } finally { if (jjtc001) { jjtree.closeNodeScope(jjtn001, 2); } } } } // logic