Examples with ConditionalBuilder com.google.template.soy.jssrc.dsl.ConditionalBuilder used on opensource projects

Example 1 with ConditionalBuilder

use of com.google.template.soy.jssrc.dsl.ConditionalBuilder in project closure-templates by google.

the class GenJsCodeVisitorAssistantForMsgs method generateMsgGroupVariable.

/**
 * Returns a code chunk representing a variable declaration for an {@link MsgFallbackGroupNode}
 * that contains fallback(s).
 */
private CodeChunk.WithValue generateMsgGroupVariable(MsgFallbackGroupNode node, String tmpVarName) {
    checkState(node.numChildren() == 2);
    // Generate the goog.getMsg calls for all children.
    GoogMsgCodeGenInfo primaryCodeGenInfo = genGoogGetMsgCallHelper(buildGoogMsgVarNameHelper(node.getChild(0)), node.getChild(0));
    GoogMsgCodeGenInfo fallbackCodeGenInfo = genGoogGetMsgCallHelper(buildGoogMsgVarNameHelper(node.getChild(1)), node.getChild(1));
    // Declare a temporary variable to hold the getMsgWithFallback() call so that we can apply any
    // MessageFormats from any of the fallbacks.  This is also the variable name that we return to
    // the caller.
    CodeChunk.WithValue selectedMsg = VariableDeclaration.builder(tmpVarName).setRhs(CodeChunk.dottedIdNoRequire("goog.getMsgWithFallback").call(primaryCodeGenInfo.googMsgVar, fallbackCodeGenInfo.googMsgVar)).build().ref();
    // We use id() here instead of using the corresponding code chunks because the stupid
    // jscodebuilder system causes us to regenerate the msg vars multiple times because it doesn't
    // detect that they were already generated.
    // TODO(b/33382980): clean this up
    CodeChunk.WithValue isPrimaryMsgInUse = CodeChunk.id(tmpVarName).doubleEquals(CodeChunk.id(primaryCodeGenInfo.googMsgVarName));
    translationContext.soyToJsVariableMappings().setIsPrimaryMsgInUse(node, isPrimaryMsgInUse);
    if (primaryCodeGenInfo.placeholders == null && fallbackCodeGenInfo.placeholders == null) {
        // all placeholders have already been substituted, just return
        return selectedMsg;
    }
    // Generate the goog.i18n.MessageFormat calls for child plural/select messages (if any), each
    // wrapped in an if-block that will only execute if that child is the chosen message.
    CodeChunk condition;
    if (primaryCodeGenInfo.placeholders != null) {
        ConditionalBuilder builder = CodeChunk.ifStatement(selectedMsg.doubleEquals(primaryCodeGenInfo.googMsgVar), selectedMsg.assign(getMessageFormatCall(primaryCodeGenInfo)));
        if (fallbackCodeGenInfo.placeholders != null) {
            builder.else_(selectedMsg.assign(getMessageFormatCall(fallbackCodeGenInfo)));
        }
        condition = builder.build();
    } else {
        condition = CodeChunk.ifStatement(selectedMsg.doubleEquals(fallbackCodeGenInfo.googMsgVar), selectedMsg.assign(getMessageFormatCall(fallbackCodeGenInfo))).build();
    }
    return CodeChunk.id(tmpVarName).withInitialStatement(condition);
}

Example 2 with ConditionalBuilder

use of com.google.template.soy.jssrc.dsl.ConditionalBuilder in project closure-templates by google.

the class GenJsCodeVisitor method generateNonExpressionIfNode.

/**
 * Generates the JavaScript code for an {if} block that cannot be done as an expression.
 *
 * <p>TODO(user): Instead of interleaving JsCodeBuilders like this, consider refactoring
 * GenJsCodeVisitor to return CodeChunks for each sub-Template level SoyNode.
 */
protected void generateNonExpressionIfNode(IfNode node) {
    ConditionalBuilder conditional = null;
    for (SoyNode child : node.getChildren()) {
        if (child instanceof IfCondNode) {
            IfCondNode condNode = (IfCondNode) child;
            // Convert predicate.
            CodeChunk.WithValue predicate = translateExpr(condNode.getExpr());
            // Convert body.
            CodeChunk consequent = visitChildrenReturningCodeChunk(condNode);
            // Add if-block to conditional.
            if (conditional == null) {
                conditional = ifStatement(predicate, consequent);
            } else {
                conditional.elseif_(predicate, consequent);
            }
        } else if (child instanceof IfElseNode) {
            // Convert body.
            CodeChunk trailingElse = visitChildrenReturningCodeChunk((IfElseNode) child);
            // Add else-block to conditional.
            conditional.else_(trailingElse);
        } else {
            throw new AssertionError();
        }
    }
    jsCodeBuilder.append(conditional.build());
}