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C++: Use a static_assert to detect Slint version mismatch

Browse source 
cc #2909 , #223

New message:
```
/home/olivier/slint/build2/examples/gallery/gallery.h:6:73: error: static assertion failed: This file was generated with Slint compiler version 1.1.1, but the Slint library used is 1.1.0. The version numbers must match exactly.
    6 | static_assert(1 == SLINT_VERSION_MAJOR && 1 == SLINT_VERSION_MINOR && 1 == SLINT_VERSION_PATCH, "This file was generated with Slint compiler version 1.1.1, but the Slint library used is " SLINT_VERSION_STRING ". The version numbers must match exactly.");
/home/olivier/slint/build2/examples/gallery/gallery.h:6:73: note: the comparison reduces to ‘(1 == 0)’
```

Previous message:
```
/home/olivier/slint/build2/examples/printerdemo/cpp/printerdemo.h:12218:161: error: conversion from ‘VersionCheckHelper<[...],[...],0>’ to non-scalar type ‘VersionCheckHelper<[...],[...],1>’ requested
12218 | [[maybe_unused]] constexpr slint::private_api::VersionCheckHelper<1, 1, 1> THE_SAME_VERSION_MUST_BE_USED_FOR_THE_COMPILER_AND_THE_RUNTIME = slint::private_api::VersionCheckHelper<SLINT_VERSION_MAJOR, SLINT_VERSION_MINOR, SLINT_VERSION_PATCH>();
      |                                                                                                                                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/olivier/slint/build2/examples/printerdemo/cpp/printerdemo.h:12218:161: error: could not convert ‘slint::private_api::VersionCheckHelper<1, 1, 0>()’ from ‘VersionCheckHelper<[...],[...],0>’ to ‘VersionCheckHelper<[...],[...],1>’
12218 | [[maybe_unused]] constexpr slint::private_api::VersionCheckHelper<1, 1, 1> THE_SAME_VERSION_MUST_BE_USED_FOR_THE_COMPILER_AND_THE_RUNTIME = slint::private_api::VersionCheckHelper<SLINT_VERSION_MAJOR, SLINT_VERSION_MINOR, SLINT_VERSION_PATCH>();
      |                                                                                                                                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                                                                                                                 |
      |                                                                                                                                                                 VersionCheckHelper<[...],[...],0>
```
This commit is contained in:
Olivier Goffart 2023-06-28 13:26:41 +02:00 • committed by Olivier Goffart
parent 6c5f6da473
commit 331e5713c2
3 changed files with 23 additions and 19 deletions
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19
api/cpp/cbindgen.rs
View file

@ -435,20 +435,23 @@ fn gen_corelib(
.with_src(crate_dir.join("graphics/image.rs"))
.with_include("slint_string.h")
.with_after_include(format!(
r"
r#"
/// This macro expands to the to the numeric value of the major version of Slint you're
/// developing against. For example if you're using version 1.5.2, this macro will expand to 1.
#define SLINT_VERSION_MAJOR {}
#define SLINT_VERSION_MAJOR {x}
/// This macro expands to the to the numeric value of the minor version of Slint you're
/// developing against. For example if you're using version 1.5.2, this macro will expand to 5.
#define SLINT_VERSION_MINOR {}
#define SLINT_VERSION_MINOR {y}
/// This macro expands to the to the numeric value of the patch version of Slint you're
/// developing against. For example if you're using version 1.5.2, this macro will expand to 2.
#define SLINT_VERSION_PATCH {}
",
env!("CARGO_PKG_VERSION_MAJOR"),
env!("CARGO_PKG_VERSION_MINOR"),
env!("CARGO_PKG_VERSION_PATCH"),
#define SLINT_VERSION_PATCH {z}
/// This macro expands to the string representation of the version of Slint you're developing against.
/// For example if you're using version 1.5.2, this macro will expand to "1.5.2".
#define SLINT_VERSION_STRING "{x}.{y}.{z}"
"#,
x = env!("CARGO_PKG_VERSION_MAJOR"),
y = env!("CARGO_PKG_VERSION_MINOR"),
z = env!("CARGO_PKG_VERSION_PATCH"),
))
.generate()
.context("Unable to generate bindings for slint_generated_public.h")?