Function traverse

index.js:268–381

(node, val, binding)

    }

    function traverse (node, val, binding) {
        for (var p = node; p; p = p.parent) {
            if (p.start === undefined || p.end === undefined) continue;
        }

        if (node.parent.type === 'CallExpression') {
            if (typeof val !== 'function') {
                return error(
                    'tried to statically call ' + inspect(val)
                    + ' as a function'
                );
            }

            var xvars = getVars(node.parent, vars);
            xvars[node.name] = val;

            var res = evaluate(node.parent, xvars);
            if (res !== undefined) {
                if (binding) binding.remove(node)
                updates.push({
                    start: node.parent.start,
                    offset: node.parent.end - node.parent.start,
                    stream: isStream(res) ? wrapStream(res) : st(String(res))
                });
            }
        }
        else if (node.parent.type === 'MemberExpression') {
            if (!isStaticProperty(node.parent.property)) {
                return error(
                    'dynamic property in member expression: '
                    + body.slice(node.parent.start, node.parent.end)
                );
            }

            var cur = node.parent.parent;

            if (cur.type === 'MemberExpression') {
                cur = cur.parent;
                if (cur.type !== 'CallExpression'
                && cur.parent.type === 'CallExpression') {
                    cur = cur.parent;
                }
            }
            if (node.parent.type === 'MemberExpression'
            && (cur.type !== 'CallExpression'
            && cur.type !== 'MemberExpression')) {
                cur = node.parent;
            }

            var xvars = getVars(cur, vars);
            xvars[node.name] = val;

            var res = evaluate(cur, xvars);
            if (res === undefined && cur.type === 'CallExpression') {
                // static-eval can't safely evaluate code with callbacks, so do it manually in a safe way
                var callee = evaluate(cur.callee, xvars);
                var args = cur.arguments.map(function (arg) {
                    // Return a function stub for callbacks so that `static-module` users