/**
* $aObject 这是一个Node对象.它是模板引擎分析模板文件后的产品之一.Node对象包含了标签中的所有内容,包括Node的类型,内容,参数,等等,这些信息都是模板引擎分析模板得来.
* 比如这个if标签,你可以通过Node对象拿到它的源码,if的模板源码类似:
* <if '(bool)$nTrue'>
* <span>true</span>
* </if>
* 也可以取得if标签的参数,if标签的参数就是上面源码中if后面的部分:
* (bool)$nTrue
* $aDev 输出设备,一般指网页
* $aCompilerManager 编译管理器
*/
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
//确保传入的$aObject参数是node对象
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
//以下是编译过程
//把<if>标签转换成php代码,也就是"if("
//获得<if>标签中的条件语句,原封不动的放到if后面的括号中充当条件
//但是这里并没有给代码块结尾,因为结尾在别的编译器中了,对于if标签来说,它的结尾工作放在</if>编译器那里了.是的,if标签是至少需要两个编译器才能完整编译
$aDev->write('if(' . ExpressionCompiler::compileExpression($aObject->attributes()->anonymous()->source(), $aObjectContainer->variableDeclares()) . '){');
/*
* 处理单行标签.单行格式是为了解决跨模板文件问题
* if标签的多行格式是:
* <if>
* <else/>
* </if>
* 单行格式是
* <if/>
* <else/>
* <if:end/>
*/
if (!$aObject->headTag()->isSingle()) {
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
$aDev->write("} ");
}
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
$aAttributes = $aObject->attributes();
if ($aAttributes->has("name")) {
$sSubTemplateName = $aAttributes->string("name");
} else {
if (!($aNameVal = $aAttributes->anonymous())) {
throw new Exception("subtemplate:define 节点缺少name属性(line:%d)", $aObject->line());
}
$sSubTemplateName = $aNameVal->source();
}
if (!is_callable($sSubTemplateName, true)) {
throw new Exception("subtemplate:define 节点的name属性使用了无效的字符：%d", $sSubTemplateName);
}
$aDev->write("\r\n\r\n// -- subtemplate start ----------------------");
$aDev->write("function __subtemplate_{$sSubTemplateName}(\$aVariables,\$aDevice){ ");
// 准备 VariableDeclares
$aOldVars = $aObjectContainer->variableDeclares();
$aDeclareVariables = new VariableDeclares();
$aObjectContainer->setVariableDeclares($aDeclareVariables);
$aBuff = new OutputStreamBuffer();
$aDev->write($aBuff);
// 编译子对像
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
// 声明用到的变量
$aDeclareVariables->make($aBuff);
$aObjectContainer->setVariableDeclares($aOldVars);
$aDev->write("}// -- subtemplate end ----------------------\r\n\r\n");
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Assert::type("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject, 'aObject');
if (!$aObjectContainer->variableDeclares()->hasDeclared('aStackForLoopIsEnableToRun')) {
$aObjectContainer->variableDeclares()->declareVarible('aStackForLoopIsEnableToRun', 'new \\org\\jecat\\framework\\util\\Stack()');
}
$aAttrs = $aObject->attributes();
$sIdx = $aAttrs->has('idx') ? $aAttrs->string('idx') : '';
$sItem = $aAttrs->has('item') ? $aAttrs->string('item') : 'theModel';
$sFor = $aAttrs->has('for') ? $aAttrs->get('for') : "\$aVariables->get('theModel')";
$aDev->write("if(\$aForModel={$sFor}){\r\n");
if ($sIdx) {
$aDev->write("\t\${$sIdx}=0;\r\n");
}
$aDev->write("\t\$aStackForLoopIsEnableToRun->put(false);");
$aDev->write("\t\tforeach(\$aForModel->childIterator() as \$__aChildModel){\r\n");
$aDev->write("\t\t\t\$aVariables->set('{$sItem}',\$__aChildModel) ;\r\n\t\t\$bLoopIsEnableToRun = & \$aStackForLoopIsEnableToRun->getRef();\r\n\t\t\$bLoopIsEnableToRun = true;\r\n");
if ($sIdx) {
$aDev->write("\t\t\t\$aVariables->set('{$sIdx}',\${$sIdx}++) ;\r\n");
}
if (!$aObject->headTag()->isSingle()) {
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
$aDev->write("\t}\r\n}\r\n");
}
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
$aDev->write(' }elseif(');
$aDev->write(ExpressionCompiler::compileExpression($aObject->attributes()->anonymous()->source(), $aObjectContainer->variableDeclares()));
$aDev->write("){ ");
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
}
/**
* return IObject
*/
public function parse(string $aSource, ObjectContainer $aObjectContainer, UI $aUI)
{
$sTempateName = $aObjectContainer->ns() . ':' . $aObjectContainer->templateName();
$aWeaveMgr = $this->weaveManager();
if (!$aWeaveMgr->hasPatchSlot($sTempateName)) {
return;
}
foreach ($aWeaveMgr->patchSlotIterator($sTempateName) as $aPatchSlot) {
$aPatchSlot->applyPatchs($aObjectContainer, $aUI);
}
}
/**
* @return ICompiled
*/
public function compile(ObjectContainer $aObjectContainer, TargetCodeOutputStream $aTargetCodeStream)
{
// 变量声明 buffer
$aBuffVarsDeclare = new OutputStreamBuffer();
$aTargetCodeStream->write($aBuffVarsDeclare);
// 编译正文
foreach ($aObjectContainer->iterator() as $aObject) {
$aCompiler = $this->compiler($aObject);
if ($aCompiler) {
$aCompiler->compile($aObject, $aObjectContainer, $aTargetCodeStream, $this);
}
}
// 变量声明
$aObjectContainer->variableDeclares()->make($aBuffVarsDeclare);
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
if (!$aObjectContainer->variableDeclares()->hasDeclared('aStackForLoopIsEnableToRun')) {
$aObjectContainer->variableDeclares()->declareVarible('aStackForLoopIsEnableToRun', 'new \\org\\jecat\\framework\\util\\Stack()');
}
$sIdxUserName = $aObject->attributes()->has('idx') ? $aObject->attributes()->get('idx') : '';
$sIdxAutoName = NodeCompiler::assignVariableName('$__dowhile_idx_');
if (!empty($sIdxUserName)) {
$aDev->write(" {$sIdxAutoName} = -1; \$aStackForLoopIsEnableToRun->put(false);");
}
$aDev->write(" do{ \$bLoopIsEnableToRun = & \$aStackForLoopIsEnableToRun->getRef();\r\n\t\t\t\$bLoopIsEnableToRun = true;");
if (!empty($sIdxUserName)) {
$aDev->write(" {$sIdxAutoName}++; \r\n\t\t\t\t\t\t\t\$aVariables[{$sIdxUserName}]={$sIdxAutoName}; ");
}
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
$aDev->write(" }while(");
$aDev->write(ExpressionCompiler::compileExpression($aObject->attributes()->anonymous()->source(), $aObjectContainer->variableDeclares()));
$aDev->write(");");
}
/**
* return IObject
*/
public function parse(string $aSource, ObjectContainer $aObjectContainer, UI $aUI)
{
$nProcIndex = 0;
$aState = ParserStateDefault::singleton();
$aCurrentObject = $aRootObject = new ObjectBase(0, $aSource->length() - 1, 0, '');
while ($nProcIndex < $aSource->length()) {
$aNewState = $aState->examineStateChange($aSource, $nProcIndex, $aCurrentObject);
if ($aNewState) {
// 切换状态
if ($aNewState != $aState) {
//
$aCurrentObject = $aState->sleep($aCurrentObject, $aSource, $nProcIndex - 1);
$aCurrentObject = $aNewState->active($aCurrentObject, $aSource, $nProcIndex);
// 状态变化
$aState = ParserState::queryState($aCurrentObject);
}
} else {
$aCurrentObject = $aState->complete($aCurrentObject, $aSource, $nProcIndex);
if (!$aCurrentObject) {
break;
}
$aCurrentObject = ParserState::queryState($aCurrentObject)->wakeup($aCurrentObject, $aSource, $nProcIndex);
// 状态变化
$aState = ParserState::queryState($aCurrentObject);
}
$nProcIndex++;
}
// 未完成的对象
if ($aCurrentObject != $aRootObject) {
$aBuff = new OutputStreamBuffer();
$aRootObject->printStruct($aBuff);
throw new Exception("<pre>\r\n分析UI模板时遇到未完成的对象：%s\r\n%s\r\n</pre>", array($aCurrentObject->summary(), $aBuff));
}
$aObjectContainer->clear();
foreach ($aRootObject->iterator() as $aObject) {
$aObjectContainer->add($aObject);
}
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
$aAttrs = $aObject->attributes();
$sType = strtolower($aAttrs->string('type'));
if (in_array($sType, array('text/php', 'php'))) {
foreach ($aObject->iterator() as $aChild) {
if ($aChild instanceof AttributeValue) {
continue;
}
$aDev->write(ExpressionCompiler::compileExpression($aChild->source(), $aObjectContainer->variableDeclares(), false, true));
}
} else {
if ($aAttrs->has('src') and !$aAttrs->bool('ignore')) {
$sSrc = $aAttrs->get('src');
$aDev->preprocessStream()->write("\\org\\jecat\\framework\\resrc\\HtmlResourcePool::singleton()->addRequire({$sSrc},\\org\\jecat\\framework\\resrc\\HtmlResourcePool::RESRC_JS) ;");
// 清除后文中的空白字符
ClearCompiler::clearAfterWhitespace($aObject);
} else {
parent::compile($aObject, $aObjectContainer, $aDev, $aCompilerManager);
}
}
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
$aAttributes = $aObject->attributes();
if ($aAttributes->has("name")) {
$sSubTemplateName = $aAttributes->string("name");
} else {
if (!($aSubTemplateNameVal = $aAttributes->anonymous())) {
throw new Exception("subtemplate:define 节点缺少name属性(line:%d)", $aObject->line());
}
$sSubTemplateName = $aSubTemplateNameVal->source();
}
if (!is_callable($sSubTemplateName, true)) {
throw new Exception("subtemplate:define 节点的name属性使用了无效的字符：%d", $sSubTemplateName);
}
$sSubTemplateFuncName = '__subtemplate_' . $sSubTemplateName;
$aDev->write("\r\n// -- call subtemplate:{$sSubTemplateName} start---------------------");
// 是否继承父模板中的变量
$bExtendParentVars = $aAttributes->has("vars") ? $aAttributes->bool('vars') : false;
// variables
if (!$bExtendParentVars) {
$aDev->write("\$__subtemplate_aVariables = new \\org\\jecat\\framework\\util\\DataSrc() ;");
$aDev->write("\$__subtemplate_aVariables->addChild(\$aVariables) ;");
} else {
$aDev->write("\$__subtemplate_aVariables = \$aVariables ;");
}
// other variables
foreach ($aAttributes as $sName => $aValue) {
if (substr($sName, 0, 4) == 'var.' and $sVarName = substr($sName, 4)) {
$sVarName = '"' . addslashes($sVarName) . '"';
$sValue = ExpressionCompiler::compileExpression($aValue->source(), $aObjectContainer->variableDeclares());
$aDev->write("\$__subtemplate_aVariables->set({$sVarName},{$sValue}) ;");
}
}
$aDev->write("if( !function_exists('{$sSubTemplateFuncName}') ){");
$aDev->write("\t\$aDevice->write(\"正在调用无效的子模板：{$sSubTemplateName}\") ;");
$aDev->write("} else {");
$aDev->write("\tcall_user_func_array('{$sSubTemplateFuncName}',array(\$__subtemplate_aVariables,\$aDevice)) ;");
$aDev->write("}");
$aDev->write("// -- call subtemplate:{$sSubTemplateName} end ---------------------\r\n\r\n");
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
$aDev->write(self::compileExpression($aObject->source(), $aObjectContainer->variableDeclares()));
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
$aDev->write(' continue ' . ExpressionCompiler::compileExpression($aObject->attributes()->source(), $aObjectContainer->variableDeclares()) . '; ');
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
Assert::type("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject, 'aObject');
if (!$aObjectContainer->variableDeclares()->hasDeclared('aStackForLoopIsEnableToRun')) {
$aObjectContainer->variableDeclares()->declareVarible('aStackForLoopIsEnableToRun', 'new \\org\\jecat\\framework\\util\\Stack()');
}
$aAttrs = $aObject->attributes();
$sStartValue = $aAttrs->has("start") ? $aAttrs->expression("start") : '0';
$sEndValue = $aAttrs->expression("end");
$sStepValue = $aAttrs->has("step") ? $aAttrs->expression("step") : '1';
$sVarAutoName = NodeCompiler::assignVariableName('$__loop_var_');
$sIdxAutoName = NodeCompiler::assignVariableName('$__loop_idx_');
$sEndName = NodeCompiler::assignVariableName('$__loop_end_');
$sStepName = NodeCompiler::assignVariableName('$__loop_step_');
$aDev->write("\t\t{$sEndName} = {$sEndValue} ; \n\t\t\t\t\t\t\t\t{$sStepName} = {$sStepValue} ;\n\t\t\t\t\t\t\t\t{$sIdxAutoName} = 0;\n\t\t\t\t\t\t\t\t\$aStackForLoopIsEnableToRun->put(false);\n\t\t\t\t\t\t\t\tfor( {$sVarAutoName} = {$sStartValue} ; {$sVarAutoName} <= {$sEndName} ; {$sVarAutoName} += {$sStepName} ){\n\t\t\t\t\t\t\t\t\$bLoopIsEnableToRun = & \$aStackForLoopIsEnableToRun->getRef();\n\t\t\t\t\t\t\t\t\$bLoopIsEnableToRun = true; \n\t\t\t\t\t\t");
if ($aAttrs->has("var")) {
$sVarUserName = $aAttrs->string("var");
$aDev->write("\t\t\t\$aVariables->{$sVarUserName} = {$sVarAutoName} ;");
}
if ($aAttrs->has("idx")) {
$sIdxUserName = $aAttrs->string("idx");
$aDev->write("\t\t\t\$aVariables->{$sIdxUserName} = {$sIdxAutoName} ;\n\t\t\t\t\t\t\t\t\t\t{$sIdxAutoName}++;");
}
// $aDev->write ( "\$bLoopIsEnableToRun = & \$aStackForLoopIsEnableToRun->getRef();
// \$bLoopIsEnableToRun = true;" );
if (!$aObject->headTag()->isSingle()) {
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
$aDev->write('} ');
}
}
public function compile(IObject $aObject, ObjectContainer $aObjectContainer, TargetCodeOutputStream $aDev, CompilerManager $aCompilerManager)
{
if (!$aObjectContainer->variableDeclares()->hasDeclared('aStackForLoopIsEnableToRun')) {
$aObjectContainer->variableDeclares()->declareVarible('aStackForLoopIsEnableToRun', 'new \\org\\jecat\\framework\\util\\Stack()');
}
Type::check("org\\jecat\\framework\\ui\\xhtml\\Node", $aObject);
$aAttrs = $aObject->attributes();
if ($aAttrs->has('for')) {
$sForUserExp = $aAttrs->expression('for');
} else {
throw new Exception("foreach tag can not run without 'for' attribute");
}
$sKeyUserName = $aAttrs->has('key') ? $aAttrs->get('key') : '';
$sItemUserName = $aAttrs->has('item') ? $aAttrs->get('item') : '';
$bItemRef = $aAttrs->has('item.ref') ? $aAttrs->bool('item.ref') : false;
$sIdxUserName = $aAttrs->has('idx') ? $aAttrs->get('idx') : '';
$sForAutoName = NodeCompiler::assignVariableName('$__foreach_Arr_');
$sItemAutoName = NodeCompiler::assignVariableName('$__foreach_item_');
$sKeyAutoName = NodeCompiler::assignVariableName('$__foreach_key_');
$sIdxAutoName = NodeCompiler::assignVariableName('$__foreach_idx_');
$sItemRef = $bItemRef ? '&' : '';
$aDev->write("\r\n// foreach start ");
$aDev->write("{$sForAutoName} = {$sForUserExp};\r\n\$aStackForLoopIsEnableToRun->put(false);\r\n{$sIdxAutoName} = -1;\r\nforeach({$sForAutoName} as {$sKeyAutoName}=>{$sItemRef}{$sItemAutoName}){");
$aDev->write("\$bLoopIsEnableToRun = & \$aStackForLoopIsEnableToRun->getRef();\r\n\t\$bLoopIsEnableToRun = true;\r\n\t{$sIdxAutoName}++;");
if (!empty($sKeyUserName)) {
$aDev->write("\t\t\$aVariables[{$sKeyUserName}]={$sKeyAutoName}; ");
}
if (!empty($sItemUserName)) {
$aDev->write("\t\t\$aVariables[{$sItemUserName}]={$sItemAutoName}; ");
}
if (!empty($sIdxUserName)) {
$aDev->write("\t\t\$aVariables[{$sIdxUserName}]={$sIdxAutoName}; ");
}
//是否是单行标签?
if (!$aObject->headTag()->isSingle()) {
//循环体，可能会包含foreach:else标签
$this->compileChildren($aObject, $aObjectContainer, $aDev, $aCompilerManager);
$aDev->write("}\r\n");
// end if (如果foreach的内容包含foreach:else标签,则此处为foreach:else的end)
}
}
