Examples with BinaryOperator org.stjs.generator.javascript.BinaryOperator used on opensource projects

Example 1 with BinaryOperator

use of org.stjs.generator.javascript.BinaryOperator in project st-js by st-js.

the class BinaryWriter method visit.

@Override
public JS visit(WriterVisitor<JS> visitor, BinaryTree tree, GenerationContext<JS> context) {
    JS left = visitor.scan(tree.getLeftOperand(), context);
    JS right = visitor.scan(tree.getRightOperand(), context);
    BinaryOperator op = BinaryOperator.valueOf(tree.getKind());
    assert op != null : "Unknow operator:" + tree.getKind();
    TypeMirror leftType = context.getTrees().getTypeMirror(new TreePath(context.getCurrentPath(), tree.getLeftOperand()));
    TypeMirror rightType = context.getTrees().getTypeMirror(new TreePath(context.getCurrentPath(), tree.getRightOperand()));
    JavaScriptBuilder<JS> b = context.js();
    if (isStringPlusChar(leftType, rightType)) {
        right = b.functionCall(b.property(b.name("String"), "fromCharCode"), asList(right));
    } else if (isStringPlusChar(rightType, leftType)) {
        left = b.functionCall(b.property(b.name("String"), "fromCharCode"), asList(left));
    }
    boolean integerDivision = tree.getKind() == Kind.DIVIDE && TypesUtils.isIntegral(leftType) && TypesUtils.isIntegral(rightType);
    @SuppressWarnings("unchecked") JS expr = b.binary(op, asList(left, right));
    if (integerDivision) {
        // force a cast for integer division to have the expected behavior in JavaScript too
        JS target = b.property(b.name("stjs"), "trunc");
        return b.functionCall(target, Collections.singleton(expr));
    }
    return expr;
}

Example 2 with BinaryOperator

use of org.stjs.generator.javascript.BinaryOperator in project st-js by st-js.

the class ReplaceBinaryWriter method visit.

@Override
public JS visit(WriterVisitor<JS> visitor, BinaryTree tree, GenerationContext<JS> context) {
    JS left = visitor.scan(tree.getLeftOperand(), context);
    // JS right = visitor.scan(tree.getRightOperand(), context);
    BinaryOperator op = BinaryOperator.valueOf(tree.getKind());
    assert op != null : "Unknow operator:" + tree.getKind();
    @SuppressWarnings("unchecked") JS // replaces on purpose the second operand at 2
    expr = context.js().binary(op, Arrays.asList(left, context.js().number(2)));
    return expr;
}

Example 3 with BinaryOperator

use of org.stjs.generator.javascript.BinaryOperator in project st-js by st-js.

the class SetterUnaryTemplate method doVisit.

protected JS doVisit(WriterVisitor<JS> visitor, UnaryTree tree, GenerationContext<JS> context, boolean global) {
    UnaryOperator op = UnaryOperator.valueOf(tree.getKind());
    assert op != null : "Unknow operator:" + tree.getKind();
    BinaryOperator binaryOp = getBinaryOperator(op);
    if (binaryOp == null) {
        return super.visit(visitor, tree, context);
    }
    JS operand = visitor.scan(tree.getExpression(), context);
    TreeWrapper<ExpressionTree, JS> twOperand = context.getCurrentWrapper().child(tree.getExpression());
    JS target = SetterAssignmentTemplate.getTarget(visitor, twOperand, context);
    JS field = SetterAssignmentTemplate.getField(twOperand, context);
    JS value = context.js().binary(binaryOp, Arrays.asList(operand, context.js().number(1)));
    List<JS> arguments = new ArrayList<JS>();
    arguments.add(field);
    arguments.add(value);
    if (op.isPostfix()) {
        arguments.add(context.js().keyword(Keyword.TRUE));
    }
    if (global) {
        arguments.add(0, target);
        return context.js().functionCall(context.js().property(context.js().name("stjs"), "setField"), arguments);
    }
    return context.js().functionCall(context.js().property(target, "set"), arguments);
}