Module bind 

XPath AST binding phase.

This module provides the bind_node() function which performs static analysis on a parsed XPath AST. During binding:

• Function calls are resolved to FunctionId via the global registry
• Variable references are resolved to slot indices via NameBinder
• Namespace prefixes are resolved to namespace URIs
• Name tests are resolved to interned QNames
• Type expressions are resolved to interned atomic type QNames

Binding must complete successfully before evaluation can proceed.

Functions

bind_node

Bind an AST node and all its children.