Examples of JavaExpr

com.google.template.soy.javasrc.restricted.JavaExpr
Value class to represent a Java expression. Includes the text of the expression as well as the precedence of the top-most operator.
Important: This class may only be used in implementing plugins (e.g. functions, directives).
Note that even though the precedence numbers we use are for Soy, the precedence ordering of the Soy expression operators matches that of Java (as well as Java), so the precedence numbers are correct when used for generating Java code as well. @author Kai Huang
jsky.util.JavaExpr
This class is a simple wrapper for the JEL package and provides support for evaluating dynamic, numerical expressions in Java. @author Allan Brighton

Examples of com.google.template.soy.javasrc.restricted.JavaExpr

      // Case 1: The code style is 'concat' and the whole template body can be represented as Java
      // expressions. We specially handle this case because we don't want to generate the variable
      // 'output' at all. We simply concatenate the Java expressions and return the result.


      List<JavaExpr> templateBodyJavaExprs = genJavaExprsVisitor.exec(node);
      JavaExpr templateBodyJavaExpr = JavaExprUtils.concatJavaExprs(templateBodyJavaExprs);
      javaCodeBuilder.appendLine("return ", templateBodyJavaExpr.getText(), ";");


    } else {
      // Case 2: Normal case.


      javaCodeBuilder.pushOutputVar("output");

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

  @Override protected void visitLetValueNode(LetValueNode node) {


    String generatedVarName = node.getUniqueVarName();


    // Generate code to define the local var.
    JavaExpr valueJavaExpr =
        translateToJavaExprVisitorFactory.create(localVarTranslations).exec(node.getValueExpr());
    javaCodeBuilder.appendLine(
        "final com.google.template.soy.data.SoyData ", generatedVarName, " = ",
        valueJavaExpr.getText(), ";");


    // Add a mapping for generating future references to this local var.
    localVarTranslations.peek().put(
        node.getVarName(), new JavaExpr(generatedVarName, SoyData.class, Integer.MAX_VALUE));
  }

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

          "String ", generatedVarName, " = ", generatedVarName, "_sb.toString();");
    }


    // Add a mapping for generating future references to this local var.
    localVarTranslations.peek().put(
        node.getVarName(), new JavaExpr(generatedVarName, SoyData.class, Integer.MAX_VALUE));
  }

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

    for (SoyNode child : node.getChildren()) {


      if (child instanceof IfCondNode) {
        IfCondNode icn = (IfCondNode) child;


        JavaExpr condJavaExpr =
            translateToJavaExprVisitorFactory.create(localVarTranslations)
                .exec(icn.getExprUnion().getExpr());
        if (icn.getCommandName().equals("if")) {
          javaCodeBuilder.appendLine("if (", genCoerceBoolean(condJavaExpr), ") {");
        } else {  // "elseif" block

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

  @Override protected void visitSwitchNode(SwitchNode node) {


    TranslateToJavaExprVisitor ttjev =
        translateToJavaExprVisitorFactory.create(localVarTranslations);


    JavaExpr switchValueJavaExpr = ttjev.exec(node.getExpr());
    String switchValueVarName = "switchValue" + node.getId();
    javaCodeBuilder.appendLine(
        "com.google.template.soy.data.SoyData ", switchValueVarName, " = ",
        switchValueJavaExpr.getText(), ";");


    boolean isFirstCase = true;
    for (SoyNode child : node.getChildren()) {


      if (child instanceof SwitchCaseNode) {
        SwitchCaseNode scn = (SwitchCaseNode) child;


        StringBuilder conditionExprText = new StringBuilder();
        boolean isFirstCaseValue = true;
        for (ExprNode caseExpr : scn.getExprList()) {
          JavaExpr caseJavaExpr = ttjev.exec(caseExpr);
          if (isFirstCaseValue) {
            isFirstCaseValue = false;
          } else {
            conditionExprText.append(" || ");
          }
          conditionExprText.append(switchValueVarName).append(".equals(")
              .append(caseJavaExpr.getText()).append(')');
        }


        if (isFirstCase) {
          isFirstCase = false;
          javaCodeBuilder.appendLine("if (", conditionExprText.toString(), ") {");

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

    String nodeId = Integer.toString(node.getId());
    String listVarName = baseVarName + "List" + nodeId;
    String listLenVarName = baseVarName + "ListLen" + nodeId;


    // Define list var and list-len var.
    JavaExpr dataRefJavaExpr =
        translateToJavaExprVisitorFactory.create(localVarTranslations).exec(node.getExpr());
    javaCodeBuilder.appendLine(
        "com.google.template.soy.data.SoyListData ", listVarName,
        " = (com.google.template.soy.data.SoyListData) ", dataRefJavaExpr.getText(), ";");
    javaCodeBuilder.appendLine("int ", listLenVarName, " = ", listVarName, ".length();");


    // If has 'ifempty' node, add the wrapper 'if' statement.
    boolean hasIfemptyNode = node.numChildren() == 2;
    if (hasIfemptyNode) {

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr


    // Add a new localVarTranslations frame and populate it with the translations from this node.
    Map<String, JavaExpr> newLocalVarTranslationsFrame = Maps.newHashMap();
    newLocalVarTranslationsFrame.put(
        baseVarName,
        new JavaExpr(dataVarName,
                     SoyData.class, Integer.MAX_VALUE));
    newLocalVarTranslationsFrame.put(
        baseVarName + "__isFirst",
        new JavaExpr("com.google.template.soy.data.restricted.BooleanData.forValue(" +
                     indexVarName + " == 0)",
                     BooleanData.class, Integer.MAX_VALUE));
    newLocalVarTranslationsFrame.put(
        baseVarName + "__isLast",
        new JavaExpr("com.google.template.soy.data.restricted.BooleanData.forValue(" +
                     indexVarName + " == " + listLenVarName + " - 1)",
                     BooleanData.class, Integer.MAX_VALUE));
    newLocalVarTranslationsFrame.put(
        baseVarName + "__index",
        new JavaExpr("com.google.template.soy.data.restricted.IntegerData.forValue(" +
                     indexVarName + ")",
                     IntegerData.class, Integer.MAX_VALUE));
    localVarTranslations.push(newLocalVarTranslationsFrame);


    // Generate the code for the loop body.

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr


    // Add a new localVarTranslations frame and populate it with the translations from this node.
    Map<String, JavaExpr> newLocalVarTranslationsFrame = Maps.newHashMap();
    newLocalVarTranslationsFrame.put(
        varName,
        new JavaExpr("com.google.template.soy.data.restricted.IntegerData.forValue(" +
                     varName + nodeId + ")",
                     IntegerData.class, Integer.MAX_VALUE));
    localVarTranslations.push(newLocalVarTranslationsFrame);


    // Generate the code for the loop body.

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

    if (javaSrcOptions.getCodeStyle() == CodeStyle.STRINGBUILDER) {
      // For 'stringbuilder' code style, pass the current output var to collect the call's output.
      if (! (node instanceof CallBasicNode)) {
        throw new UnsupportedOperationException("Delegates are not supported in JavaSrc backend.");
      }
      JavaExpr objToPass = genCallCodeUtils.genObjToPass(node, localVarTranslations);
      javaCodeBuilder.indent()
          .append(((CallBasicNode) node).getCalleeName().replace('.', '$'))
          .append("(", objToPass.getText(), ", ").appendOutputVarName().append(");\n");


    } else {
      // For 'concat' code style, we simply add the call's result to the current output var.
      JavaExpr callExpr = genCallCodeUtils.genCallExpr(node, localVarTranslations);
      javaCodeBuilder.addToOutputVar(ImmutableList.of(callExpr));
    }
  }

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Examples of com.google.template.soy.javasrc.restricted.JavaExpr

  // -----------------------------------------------------------------------------------------------
  // Implementations for primitives.




  @Override protected JavaExpr visitNullNode(NullNode node) {
    return new JavaExpr(NULL_DATA_INSTANCE, NullData.class, Integer.MAX_VALUE);
  }

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