Lines
100 %
Functions
60 %
#![allow(clippy::legacy_numeric_constants)]
use std::collections::BTreeMap;
use tree_sitter::Node;
use super::ParseContext;
use super::domain::parse_domain;
use super::util::named_children;
use crate::diagnostics::diagnostics_api::SymbolKind;
use crate::diagnostics::source_map::{HoverInfo, span_with_hover};
use crate::errors::{FatalParseError, RecoverableParseError};
use crate::field;
use conjure_cp_core::ast::{DomainPtr, Name};
/// Parse a find statement into a map of decision variable names to their domains.
pub fn parse_find_statement(
ctx: &mut ParseContext,
find_statement: Node,
) -> Result<BTreeMap<Name, DomainPtr>, FatalParseError> {
let mut vars = BTreeMap::new();
let domain = field!(find_statement, "domain");
let Some(domain) = parse_domain(ctx, domain)? else {
return Ok(vars);
};
let variable_list = field!(find_statement, "variables");
for variable in named_children(&variable_list) {
let variable_name = &ctx.source_code[variable.start_byte()..variable.end_byte()];
let name = Name::user(variable_name);
// Check for duplicate within the same statement
if vars.contains_key(&name) {
ctx.errors.push(RecoverableParseError::new(
format!(
"Variable '{}' is already declared in this find statement",
variable_name
),
Some(variable.range()),
));
// don't return here, as we can still add the other variables to the symbol table
continue;
}
// Check for duplicate declaration across statements
if let Some(symbols) = &ctx.symbols
&& symbols.read().lookup(&name).is_some()
{
"Variable '{}' is already declared in a previous statement",
vars.insert(name, domain.clone());
let hover = HoverInfo {
description: format!("Find variable: {variable_name}"),
kind: Some(SymbolKind::Find),
ty: Some(domain.to_string()),
decl_span: None,
span_with_hover(&variable, ctx.source_code, ctx.source_map, hover);
Ok(vars)