28 lines
1.6 KiB
Rust
28 lines
1.6 KiB
Rust
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use super::ValueId;
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impl super::MirBuilder {
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// Include lowering: include "path"
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pub(super) fn build_include_expression(&mut self, filename: String) -> Result<ValueId, String> {
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let mut path = super::utils::resolve_include_path_builder(&filename);
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if std::path::Path::new(&path).is_dir() { path = format!("{}/index.nyash", path.trim_end_matches('/')); }
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else if std::path::Path::new(&path).extension().is_none() { path.push_str(".nyash"); }
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if self.include_loading.contains(&path) { return Err(format!("Circular include detected: {}", path)); }
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if let Some(name) = self.include_box_map.get(&path).cloned() { return self.build_new_expression(name, vec![]); }
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self.include_loading.insert(path.clone());
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let content = std::fs::read_to_string(&path).map_err(|e| format!("Include read error '{}': {}", filename, e))?;
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let included_ast = crate::parser::NyashParser::parse_from_string(&content).map_err(|e| format!("Include parse error '{}': {:?}", filename, e))?;
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let mut box_name: Option<String> = None;
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if let crate::ast::ASTNode::Program { statements, .. } = &included_ast {
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for st in statements { if let crate::ast::ASTNode::BoxDeclaration { name, is_static, .. } = st { if *is_static { box_name = Some(name.clone()); break; } } }
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}
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let bname = box_name.ok_or_else(|| format!("Include target '{}' has no static box", filename))?;
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let _ = self.build_expression_impl(included_ast)?;
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self.include_loading.remove(&path);
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self.include_box_map.insert(path.clone(), bname.clone());
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self.build_new_expression(bname, vec![])
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}
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}
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