dust/src/abstract_tree/yield.rs

48 lines
1.3 KiB
Rust

use serde::{Deserialize, Serialize};
use tree_sitter::Node;
use crate::{
AbstractTree, Expression, FunctionCall, Identifier, Map, Result, TypeDefinition, Value,
};
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub struct Yield {
call: FunctionCall,
}
impl AbstractTree for Yield {
fn from_syntax_node(source: &str, node: Node, context: &Map) -> Result<Self> {
let input_node = node.child(0).unwrap();
let input = Expression::from_syntax_node(source, input_node, context)?;
let function_node = node.child(3).unwrap();
let function = Identifier::from_syntax_node(source, function_node, context)?;
let mut arguments = Vec::new();
arguments.push(input);
for index in 4..node.child_count() - 1 {
let node = node.child(index).unwrap();
if node.is_named() {
let expression = Expression::from_syntax_node(source, node, context)?;
arguments.push(expression);
}
}
let call = FunctionCall::new(function, arguments);
Ok(Yield { call })
}
fn run(&self, source: &str, context: &Map) -> Result<Value> {
self.call.run(source, context)
}
fn expected_type(&self, context: &Map) -> Result<TypeDefinition> {
self.call.expected_type(context)
}
}