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This is a prerequisite for using qmlcachegen KDAB#242
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| // SPDX-FileCopyrightText: 2023 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com> | ||
| // SPDX-FileContributor: Be Wilson <be.wilson@kdab.com> | ||
| // | ||
| // SPDX-License-Identifier: MIT OR Apache-2.0 | ||
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| //! This Rust module contains structs for registering QML modules. | ||
| use std::path::{Path, PathBuf}; | ||
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| /// Metadata for registering a QML module with [crate::CxxQtBuilder::qml_module] | ||
| pub struct QmlModule<'a, A, B> | ||
| where | ||
| A: AsRef<Path>, | ||
| // Use a separate generic to allow using different types that impl AsRef<Path> | ||
| B: AsRef<Path>, | ||
| { | ||
| /// The URI of the QML module | ||
| pub uri: &'a str, | ||
| /// The major version of the QML module | ||
| pub version_major: usize, | ||
| /// The minor version of the QML module | ||
| pub version_minor: usize, | ||
| /// The `.rs` files containing a `#[cxx_qt::bridge]` module with at least one QObject type annotated with `#[qml_element]` | ||
| pub rust_files: &'a [A], | ||
| /// `.qml` files included in the module | ||
| pub qml_files: &'a [B], | ||
| /// Other QRC resources (such as images) included in the module | ||
| // | ||
| // Reuse the `A` generic from rust_files to allow the compiler to infer the | ||
| // type when constructing the struct with Default::default. Using a separate | ||
| // generic for this field would be more flexible, but it would require users | ||
| // to explicitly specify the type even for an empty slice (like `&[] as &[&str; 0]`) | ||
| // and an empty slice is likely desired in most cases; most users probably don't | ||
| // care about this field. | ||
| pub qrc_files: &'a [A], | ||
| } | ||
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| impl<'a, A, B> Default for QmlModule<'a, A, B> | ||
| where | ||
| A: AsRef<Path>, | ||
| B: AsRef<Path>, | ||
| { | ||
| fn default() -> Self { | ||
| QmlModule { | ||
| uri: "com.example.cxx_qt_module", | ||
| version_major: 1, | ||
| version_minor: 0, | ||
| rust_files: &[], | ||
| qml_files: &[], | ||
| qrc_files: &[], | ||
| } | ||
| } | ||
| } | ||
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| /// Same as [QmlModule], but this struct owns the data instead of referencing it. | ||
| /// This avoids needing to specify generics to instantiate a [crate::CxxQtBuilder], which | ||
| /// contains a `Vec<OwningQmlModule>` member. | ||
| pub(crate) struct OwningQmlModule { | ||
| pub uri: String, | ||
| pub version_major: usize, | ||
| pub version_minor: usize, | ||
| pub rust_files: Vec<PathBuf>, | ||
| pub qml_files: Vec<PathBuf>, | ||
| pub qrc_files: Vec<PathBuf>, | ||
| } | ||
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| fn collect_pathbuf_vec(asref: &[impl AsRef<Path>]) -> Vec<PathBuf> { | ||
| asref.iter().map(|p| p.as_ref().to_path_buf()).collect() | ||
| } | ||
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| impl<A: AsRef<Path>, B: AsRef<Path>> From<QmlModule<'_, A, B>> for OwningQmlModule { | ||
| fn from(other: QmlModule<'_, A, B>) -> Self { | ||
| OwningQmlModule { | ||
| uri: other.uri.to_string(), | ||
| version_major: other.version_major, | ||
| version_minor: other.version_minor, | ||
| rust_files: collect_pathbuf_vec(other.rust_files), | ||
| qml_files: collect_pathbuf_vec(other.qml_files), | ||
| qrc_files: collect_pathbuf_vec(other.qrc_files), | ||
| } | ||
| } | ||
| } |
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