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Do not panic if the document contains a global but no normal component

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Fixes #2005

(Unfortunately, we can't make a driver test for this becasue the
behavior with the interpreter is different than with the compilers.
The interpreter errors out, while the compiler should just generate
nothing)
This commit is contained in:
Olivier Goffart 2022-12-19 18:51:34 +01:00 • committed by Olivier Goffart
parent 3d171320e9
commit af50c2c2c2
3 changed files with 18 additions and 6 deletions
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10
internal/compiler/generator/cpp.rs
View file

@ -287,7 +287,7 @@ mod cpp_ast {
}
use crate::expression_tree::{BuiltinFunction, EasingCurve};
use crate::langtype::{NativeClass, Type};
use crate::langtype::{ElementType, NativeClass, Type};
use crate::layout::Orientation;
use crate::llr::{
self, EvaluationContext as llr_EvaluationContext, ParentCtx as llr_ParentCtx,
@ -583,6 +583,14 @@ pub fn generate(doc: &Document) -> impl std::fmt::Display {
}
}
if matches!(
doc.root_component.root_element.borrow().base_type,
ElementType::Error | ElementType::Global
) {
// empty document, nothing to generate
return file;
}
let llr = llr::lower_to_item_tree::lower_to_item_tree(&doc.root_component);
// Forward-declare the root so that sub-components can access singletons, the window, etc.