Revision 46085 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.impl/src/main/java/org/gvsig/expressionevaluator/impl/function/programming/CodeBlockFunction.java
| CodeBlockFunction.java | ||
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package org.gvsig.expressionevaluator.impl.function.programming; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.apache.commons.lang3.Range; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.commons.lang3.mutable.MutableBoolean; |
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import org.gvsig.expressionevaluator.Code; |
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import org.gvsig.expressionevaluator.CodeBuilder; |
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import org.gvsig.expressionevaluator.Codes; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import org.gvsig.expressionevaluator.Function; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.impl.DefaultInterpreter; |
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import org.gvsig.expressionevaluator.spi.AbstractFunction; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.visitor.FilteredVisitable; |
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import org.gvsig.tools.visitor.VisitCanceledException; |
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@SuppressWarnings("UseSpecificCatch")
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public class CodeBlockFunction extends AbstractFunction {
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public static final String NAME = "BLOCK"; |
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public CodeBlockFunction() {
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super(Function.GROUP_PROGRAMMING,
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NAME,
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Range.between(1,Integer.MAX_VALUE), |
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super(Function.GROUP_PROGRAMMING, |
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NAME, |
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Range.between(1, Integer.MAX_VALUE),
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"Evaluate each of the arguments sequentially.", |
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"BEGIN\n {{sentence}};\nEXCEPT\n PASS\nEND\n",
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null, |
| ... | ... | |
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@Override |
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public boolean isHidden() {
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return true; |
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return true;
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} |
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@Override |
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public boolean useArgumentsInsteadObjects() {
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return true; |
| ... | ... | |
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public boolean allowConstantFolding() {
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return false; |
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} |
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@Override |
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public Object call(Interpreter interpreter, Object[] args) throws Exception {
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throw new UnsupportedOperationException("Not supported yet.");
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} |
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@Override |
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public Object call(Interpreter interpreter, Codes args) throws Exception {
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Object value = null; |
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for (Code arg : args) {
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for (Code statement : args) {
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statement = resolveHostExpressions((DefaultInterpreter) interpreter, statement); |
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// LLamamos a runCode para que no atrape los returns. |
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value = ((DefaultInterpreter)interpreter).runCode(arg);
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value = ((DefaultInterpreter) interpreter).runCode(statement);
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} |
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return value; |
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} |
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/*friend*/ static Code resolveHostExpressions(DefaultInterpreter interpreter, Code statement) throws Exception {
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List<Code> hostExpressions = new ArrayList<>(); |
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statement.accept( |
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(Object code) -> {
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hostExpressions.add((Code) code); |
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}, |
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(FilteredVisitable code) -> !(code instanceof Code.Callable |
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&& StringUtils.equalsIgnoreCase(((Code.Callable) code).name(), ExpressionBuilder.FUNCTION_$HOSTEXPRESSION)) |
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); |
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if (hostExpressions.isEmpty()) {
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return statement; |
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} |
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Code newstatement = (Code) statement.clone(); |
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hostExpressions.clear(); |
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newstatement.accept( |
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(Object code) -> {
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hostExpressions.add((Code) code); |
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}, |
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(FilteredVisitable code) -> !(code instanceof Code.Callable |
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&& StringUtils.equalsIgnoreCase(((Code.Callable) code).name(), ExpressionBuilder.FUNCTION_$HOSTEXPRESSION)) |
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); |
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if (hostExpressions.isEmpty()) {
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return statement; |
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} |
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CodeBuilder codeBuilder = interpreter.getCodeBuilder(); |
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List<Code.Constant> constants = new ArrayList<>(); |
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for (Code hostExpression : hostExpressions) {
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Object v = interpreter.run(hostExpression); |
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constants.add(codeBuilder.constant(v)); |
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} |
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for (int i = 0; i < hostExpressions.size(); i++) {
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Code hostExpression = hostExpressions.get(i); |
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Code value = constants.get(i); |
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newstatement.replace(hostExpression, value); |
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} |
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return newstatement; |
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// return statement; |
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} |
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} |
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