Examples with ASTList gov.sandia.n2a.language.parse.ASTList used on opensource projects

Example 1 with ASTList

use of gov.sandia.n2a.language.parse.ASTList in project n2a by frothga.

the class AccessElement method getOperandsFrom.

public void getOperandsFrom(SimpleNode node) throws ParseException {
    if (node.jjtGetNumChildren() != 1)
        throw new Error("AST for function has unexpected form");
    Object o = node.jjtGetChild(0);
    if (!(o instanceof ASTList))
        throw new Error("AST for function has unexpected form");
    ASTList l = (ASTList) o;
    int count = l.jjtGetNumChildren();
    operands = new Operator[count + 1];
    String value = node.jjtGetValue().toString();
    // Remove "()" from the end of name.
    operands[0] = new AccessVariable(value.substring(0, value.length() - 2));
    for (int i = 0; i < count; i++) {
        operands[i + 1] = Operator.getFrom((SimpleNode) l.jjtGetChild(i));
    }
}

Example 2 with ASTList

use of gov.sandia.n2a.language.parse.ASTList in project n2a by frothga.

the class Operator method getFrom.

public static Operator getFrom(SimpleNode node) throws ParseException {
    Operator result;
    if (node instanceof ASTOperator) {
        Factory f = operators.get(node.jjtGetValue().toString());
        result = f.createInstance();
    } else if (node instanceof ASTIdentifier) {
        String value = node.jjtGetValue().toString();
        if (value.endsWith("()")) {
            Factory f = operators.get(value.substring(0, value.length() - 2));
            if (// It's either this or an undefined function. In the second case, variable access will fail.
            f == null)
                // It's either this or an undefined function. In the second case, variable access will fail.
                result = new AccessElement();
            else
                result = f.createInstance();
        } else {
            result = new AccessVariable();
        }
    } else if (node instanceof ASTConstant)
        result = new Constant();
    else if (node instanceof ASTMatrix)
        result = new BuildMatrix();
    else if (node instanceof ASTList) {
        if (node.jjtGetNumChildren() == 1)
            return getFrom((SimpleNode) node.jjtGetChild(0));
        // Lists can exist elsewhere besides a $type split, but they should be processed out by getOperandsFrom(SimpleNode).
        result = new Split();
    } else
        result = new Operator();
    result.getOperandsFrom(node);
    return result;
}

Example 3 with ASTList

use of gov.sandia.n2a.language.parse.ASTList in project n2a by frothga.

the class Split method getOperandsFrom.

public void getOperandsFrom(SimpleNode node) throws ParseException {
    if (!(node instanceof ASTList))
        throw new Error("AST for type list has unexpected form");
    ASTList l = (ASTList) node;
    int count = l.jjtGetNumChildren();
    names = new String[count];
    for (int i = 0; i < count; i++) {
        SimpleNode n = (SimpleNode) l.jjtGetChild(i);
        if (!(n instanceof ASTIdentifier))
            throw new ParseException("Items in $type list must all be part names.");
        names[i] = n.jjtGetValue().toString();
    }
}

Example 4 with ASTList

use of gov.sandia.n2a.language.parse.ASTList in project n2a by frothga.

the class Function method getOperandsFrom.

public void getOperandsFrom(SimpleNode node) throws ParseException {
    if (node.jjtGetNumChildren() == 0) {
        operands = new Operator[0];
        return;
    }
    if (node.jjtGetNumChildren() != 1)
        throw new Error("AST for function has unexpected form");
    Object o = node.jjtGetChild(0);
    if (!(o instanceof ASTList))
        throw new Error("AST for function has unexpected form");
    ASTList l = (ASTList) o;
    int count = l.jjtGetNumChildren();
    operands = new Operator[count];
    for (int i = 0; i < count; i++) operands[i] = Operator.getFrom((SimpleNode) l.jjtGetChild(i));
}