slint/sixtyfps_compiler/passes/check_expressions.rs
2020-11-13 13:36:32 +01:00

36 lines
1.4 KiB
Rust

/* LICENSE BEGIN
This file is part of the SixtyFPS Project -- https://sixtyfps.io
Copyright (c) 2020 Olivier Goffart <olivier.goffart@sixtyfps.io>
Copyright (c) 2020 Simon Hausmann <simon.hausmann@sixtyfps.io>
SPDX-License-Identifier: GPL-3.0-only
This file is also available under commercial licensing terms.
Please contact info@sixtyfps.io for more information.
LICENSE END */
use crate::diagnostics::BuildDiagnostics;
use crate::expression_tree::Expression;
use crate::object_tree::{recurse_elem, visit_element_expressions};
/// Check the validity of expressions
///
/// - Make sure that there is no uncalled member function or macro
pub fn check_expressions(doc: &crate::object_tree::Document, diag: &mut BuildDiagnostics) {
for component in &doc.inner_components {
recurse_elem(&component.root_element, &(), &mut |elem, _| {
visit_element_expressions(elem, |e, _, _| check_expression(e, diag));
})
}
}
fn check_expression(e: &Expression, diag: &mut BuildDiagnostics) -> () {
match e {
Expression::MemberFunction { base_node, .. } => {
diag.push_error("Member function must be called".into(), base_node);
}
Expression::BuiltinMacroReference(_, node) => {
diag.push_error("Builtin function must be called".into(), node);
}
_ => e.visit(|e| check_expression(e, diag)),
}
}