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35 lines
1.4 KiB
Rust
35 lines
1.4 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint-ui.com>
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// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-commercial
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use std::rc::Rc;
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use crate::diagnostics::BuildDiagnostics;
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use crate::expression_tree::{BuiltinFunction, Expression};
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use crate::object_tree::{visit_all_expressions, Component};
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/// Check the validity of expressions
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///
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/// - Make sure that there is no uncalled member function or macro
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pub fn check_expressions(doc: &crate::object_tree::Document, diag: &mut BuildDiagnostics) {
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for component in &doc.inner_components {
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visit_all_expressions(component, |e, _| check_expression(component, e, diag));
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}
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}
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fn check_expression(component: &Rc<Component>, e: &Expression, diag: &mut BuildDiagnostics) {
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match e {
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Expression::MemberFunction { .. } => {
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// Must already have been be reported.
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debug_assert!(diag.has_error());
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}
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Expression::BuiltinMacroReference(_, node) => {
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diag.push_error("Builtin function must be called".into(), node);
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}
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Expression::BuiltinFunctionReference(BuiltinFunction::GetWindowScaleFactor, loc) => {
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if component.is_global() {
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diag.push_error("Cannot convert between logical and physical length in a global component, because the scale factor is not known".into(), loc);
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}
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}
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_ => e.visit(|e| check_expression(component, e, diag)),
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}
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}
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