Examples with ExprNode com.google.template.soy.exprtree.ExprNode used on opensource projects

Example 26 with ExprNode

use of com.google.template.soy.exprtree.ExprNode in project closure-templates by google.

the class SimplifyExprVisitor method visitConditionalOpNode.

@Override
protected void visitConditionalOpNode(ConditionalOpNode node) {
    // Recurse.
    visitChildren(node);
    // Can simplify if operand0 is constant. We assume no side-effects.
    SoyValue operand0 = getConstantOrNull(node.getChild(0));
    if (operand0 == null) {
        // cannot simplify
        return;
    }
    ExprNode replacementNode = operand0.coerceToBoolean() ? node.getChild(1) : node.getChild(2);
    node.getParent().replaceChild(node, replacementNode);
}

Example 27 with ExprNode

use of com.google.template.soy.exprtree.ExprNode in project closure-templates by google.

the class EvalVisitor method visitLegacyObjectMapLiteralOrMapLiteralNode.

private SoyValue visitLegacyObjectMapLiteralOrMapLiteralNode(AbstractParentExprNode node) {
    checkState(node.getKind() == ExprNode.Kind.LEGACY_OBJECT_MAP_LITERAL_NODE || node.getKind() == ExprNode.Kind.MAP_LITERAL_NODE);
    int numItems = node.numChildren() / 2;
    boolean isStringKeyed = true;
    ExprNode firstNonstringKeyNode = null;
    List<SoyValue> keys = Lists.newArrayListWithCapacity(numItems);
    List<SoyValue> values = Lists.newArrayListWithCapacity(numItems);
    for (int i = 0; i < numItems; i++) {
        SoyValue key = visit(node.getChild(2 * i));
        if (isStringKeyed && !(key instanceof StringData)) {
            isStringKeyed = false;
            // temporary until we support nonstring key
            firstNonstringKeyNode = node.getChild(2 * i);
        }
        keys.add(key);
        values.add(visit(node.getChild(2 * i + 1)));
    }
    if (node.getKind() == ExprNode.Kind.LEGACY_OBJECT_MAP_LITERAL_NODE) {
        if (!isStringKeyed) {
            throw RenderException.create(String.format("legacy_object_map literals must have string keys (key \"%s\" in map %s does not " + "evaluate to a string).", firstNonstringKeyNode.toSourceString(), node.toSourceString()));
        }
        // Not an ImmutableMap, because map literals allow duplicate keys (last one wins).
        Map<String, SoyValue> map = new LinkedHashMap<>();
        for (int i = 0; i < numItems; i++) {
            map.put(keys.get(i).stringValue(), values.get(i));
        }
        return DictImpl.forProviderMap(map, RuntimeMapTypeTracker.Type.LEGACY_OBJECT_MAP_OR_RECORD);
    } else {
        ImmutableMap.Builder<SoyValue, SoyValue> builder = ImmutableMap.builder();
        for (int i = 0; i < numItems; ++i) {
            SoyValue key = keys.get(i);
            SoyValue value = values.get(i);
            if (isNullOrUndefinedBase(key)) {
                throw RenderException.create(String.format("null key in entry: null=%s", value));
            }
            builder.put(key, value);
        }
        return SoyMapImpl.forProviderMap(builder.build());
    }
}

Example 28 with ExprNode

use of com.google.template.soy.exprtree.ExprNode in project closure-templates by google.

the class ResolvePackageRelativeCssNamesPass method resolveSelector.

private void resolveSelector(TemplateNode template, FunctionNode node, @Nullable String packagePrefix) {
    if (node.getSoyFunction() != BuiltinFunction.CSS) {
        return;
    }
    ExprNode lastChild = Iterables.getLast(node.getChildren());
    if (!(lastChild instanceof StringNode)) {
        // this will generate an error in CheckFunctionCallsVisitor
        return;
    }
    StringNode selector = (StringNode) Iterables.getLast(node.getChildren());
    String selectorText = selector.getValue();
    if (!selectorText.startsWith(RELATIVE_SELECTOR_PREFIX)) {
        return;
    }
    if (node.numChildren() > 1) {
        errorReporter.report(selector.getSourceLocation(), PACKAGE_RELATIVE_CLASS_NAME_USED_WITH_COMPONENT_NAME, selectorText);
    }
    if (packagePrefix == null) {
        errorReporter.report(selector.getSourceLocation(), NO_CSS_PACKAGE, selectorText, template.getRequiredCssNamespaces().isEmpty() ? "" : " NOTE: ''requirecss'' on a template is not used to infer the CSS package.");
    }
    // Replace the selector text with resolved selector text
    String prefixed = packagePrefix + selectorText.substring(RELATIVE_SELECTOR_PREFIX.length());
    StringNode newSelector = new StringNode(prefixed, QuoteStyle.SINGLE, selector.getSourceLocation());
    node.replaceChild(selector, newSelector);
}

Example 29 with ExprNode

use of com.google.template.soy.exprtree.ExprNode in project closure-templates by google.

the class TemplateDelegateNodeBuilder method setCommandValues.

@Override
public TemplateNodeBuilder setCommandValues(Identifier templateName, List<CommandTagAttribute> attrs) {
    this.cmdText = templateName.identifier() + " " + Joiner.on(' ').join(attrs);
    setCommonCommandValues(attrs);
    this.delTemplateName = templateName.identifier();
    for (CommandTagAttribute attribute : attrs) {
        Identifier name = attribute.getName();
        if (COMMON_ATTRIBUTE_NAMES.contains(name.identifier())) {
            continue;
        }
        switch(name.identifier()) {
            case "variant":
                // need to get variant parsing out of this.  maybe we can expose some sort of limited
                // primitiveOrGlobal parsing solution?
                ExprNode variantExpr = attribute.valueAsExpr(errorReporter);
                validateVariantExpression(variantExpr, errorReporter);
                this.delTemplateVariantExpr = new ExprRootNode(variantExpr);
                break;
            default:
                errorReporter.report(name.location(), CommandTagAttribute.UNSUPPORTED_ATTRIBUTE_KEY, name.identifier(), "deltemplate", ImmutableList.builder().addAll(COMMON_ATTRIBUTE_NAMES).add("variant").build());
        }
    }
    this.delPriority = soyFileHeaderInfo.priority;
    genInternalTemplateNameHelper();
    return this;
}

Example 30 with ExprNode

use of com.google.template.soy.exprtree.ExprNode in project closure-templates by google.

the class ParseExpressionTest method testParseFunctionCall.

@Test
public void testParseFunctionCall() throws Exception {
    ExprNode expr = assertThatExpression("isFirst($x)").isValidExpression();
    FunctionNode isFirstFn = (FunctionNode) expr;
    assertThat(isFirstFn.getFunctionName()).isEqualTo("isFirst");
    assertThat(isFirstFn.numChildren()).isEqualTo(1);
    assertThat(isFirstFn.getChild(0).toSourceString()).isEqualTo("$x");
    expr = assertThatExpression("round(3.14159, 2)").isValidExpression();
    FunctionNode roundFn = (FunctionNode) expr;
    assertThat(roundFn.getFunctionName()).isEqualTo("round");
    assertThat(roundFn.numChildren()).isEqualTo(2);
    assertThat(((FloatNode) roundFn.getChild(0)).getValue()).isEqualTo(3.14159);
    assertThat(((IntegerNode) roundFn.getChild(1)).getValue()).isEqualTo(2);
}