xsd-schema 0.1.0

XML Schema (XSD 1.0/1.1) validator with PSVI and a built-in XPath 2.0 engine
Documentation 
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// ============================================================================
// Function Call
// ============================================================================

use super::{AstNodeId, SourceSpan};
use crate::xpath::functions::FunctionHandle;

/// Function call expression (`prefix:name(args...)`).
#[derive(Debug, Clone)]
pub struct FunctionCallNode {
    /// Namespace prefix (empty string if none, defaults to fn namespace).
    pub prefix: String,
    /// Function local name.
    pub local_name: String,
    /// Argument expressions.
    pub args: Vec<AstNodeId>,
    /// Source location.
    pub span: SourceSpan,
    /// Resolved function handle (set during binding phase).
    ///
    /// This replaces the previous `function_id` field. The handle works for
    /// both built-in and custom functions.
    pub function_handle: Option<FunctionHandle>,
}

impl FunctionCallNode {
    pub fn new(prefix: String, local_name: String, args: Vec<AstNodeId>, span: SourceSpan) -> Self {
        Self {
            prefix,
            local_name,
            args,
            span,
            function_handle: None,
        }
    }
}