enjoy 3.6 release ^_^

src/main/java/com/jfinal/template/stat/ast/Case.java

@@ -0,0 +1,89 @@
+/**
+ * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jfinal.template.stat.ast;
+
+import com.jfinal.template.Env;
+import com.jfinal.template.TemplateException;
+import com.jfinal.template.expr.ast.Expr;
+import com.jfinal.template.expr.ast.ExprList;
+import com.jfinal.template.io.Writer;
+import com.jfinal.template.stat.Location;
+import com.jfinal.template.stat.ParseException;
+import com.jfinal.template.stat.Scope;
+
+/**
+ * Case
+ */
+public class Case extends Stat implements CaseSetter {
+	
+	private Expr[] exprArray;
+	private Stat stat;
+	private Case nextCase;
+	
+	public Case(ExprList exprList, StatList statList, Location location) {
+		if (exprList.length() == 0) {
+			throw new ParseException("The parameter of #case directive can not be blank", location);
+		}
+		
+		this.exprArray = exprList.getExprArray();
+		this.stat = statList.getActualStat();
+	}
+	
+	public void setNextCase(Case nextCase) {
+		this.nextCase = nextCase;
+	}
+	
+	public void exec(Env env, Scope scope, Writer writer) {
+		throw new TemplateException("#case 指令的 exec 不能被调用", location);
+	}
+	
+	boolean execIfMatch(Object switchValue, Env env, Scope scope, Writer writer) {
+		if (exprArray.length == 1) {
+			Object value = exprArray[0].eval(scope);
+			
+			// 照顾 null == null 以及数值比较小的整型数据比较
+			if (value == switchValue) {
+				stat.exec(env, scope, writer);
+				return true;
+			}
+			
+			if (value != null && value.equals(switchValue)) {
+				stat.exec(env, scope, writer);
+				return true;
+			}
+		} else {
+			for (Expr expr : exprArray) {
+				Object value = expr.eval(scope);
+				
+				// 照顾 null == null 以及数值比较小的整型数据比较
+				if (value == switchValue) {
+					stat.exec(env, scope, writer);
+					return true;
+				}
+				
+				if (value != null && value.equals(switchValue)) {
+					stat.exec(env, scope, writer);
+					return true;
+				}
+			}
+		}
+		
+		return nextCase != null ? nextCase.execIfMatch(switchValue, env, scope, writer) : false;
+	}
+}
+
+