Importing a non-existing package should fail

[clebs]

Zig Version

0.11.0-dev.231+476b94680

Steps to Reproduce and Observed Behavior

Compile an executable with this main.zig:

const std = @import("std");
const x = @import("blablabla"); // this package does not exist and is not added to build.zig

pub fn main() !void {
    std.debug.print("Somehow this compiles\n", .{});
}

Expected Behavior

The compilation fails as the package does not exist.

I noticed that this does fail when trying to do something with const x. If trying to use the package then the right error shows up:

error: no package named 'blablabla' available within package 'root'
const x = @import("blablabla");
                  ^~~~~~~~~~~

Maybe a solution to avoid this case is detecting unused imports.

[Vexu]

This is Zig's lazy analysis working as designed, see #2529 for more discussion about this.

[clebs]

Thanks for the info! I might be misunderstanding, but shouldn't this work according to this comment?
#7867 (comment)

[Vexu]

"blablabla" is not a file, it's a package and AstGen cannot know if it exists or not.

[clebs]

I see, thanks for the clarification. I was confused because the code sample in that issue uses this statement:
const mylib = @import("nonexistent");. So I assumed by importing a file, both files and packages were meant.