zig/test/compile_errors.zig
2022-11-23 22:16:31 +02:00

282 lines
8.4 KiB
Zig

const std = @import("std");
const builtin = @import("builtin");
const TestContext = @import("../src/test.zig").TestContext;
pub fn addCases(ctx: *TestContext) !void {
{
const case = ctx.obj("wrong same named struct", .{});
case.backend = .stage1;
case.addSourceFile("a.zig",
\\pub const Foo = struct {
\\ x: i32,
\\};
);
case.addSourceFile("b.zig",
\\pub const Foo = struct {
\\ z: f64,
\\};
);
case.addError(
\\const a = @import("a.zig");
\\const b = @import("b.zig");
\\
\\export fn entry() void {
\\ var a1: a.Foo = undefined;
\\ bar(&a1);
\\}
\\
\\fn bar(x: *b.Foo) void {_ = x;}
, &[_][]const u8{
"tmp.zig:6:10: error: expected type '*b.Foo', found '*a.Foo'",
"tmp.zig:6:10: note: pointer type child 'a.Foo' cannot cast into pointer type child 'b.Foo'",
"a.zig:1:17: note: a.Foo declared here",
"b.zig:1:17: note: b.Foo declared here",
});
}
{
const case = ctx.obj("multiple files with private function error", .{});
case.backend = .stage1;
case.addSourceFile("foo.zig",
\\fn privateFunction() void { }
);
case.addError(
\\const foo = @import("foo.zig",);
\\
\\export fn callPrivFunction() void {
\\ foo.privateFunction();
\\}
, &[_][]const u8{
"tmp.zig:4:8: error: 'privateFunction' is private",
"foo.zig:1:1: note: declared here",
});
}
{
const case = ctx.obj("multiple files with private member instance function (canonical invocation) error", .{});
case.backend = .stage1;
case.addSourceFile("foo.zig",
\\pub const Foo = struct {
\\ fn privateFunction(self: *Foo) void { _ = self; }
\\};
);
case.addError(
\\const Foo = @import("foo.zig",).Foo;
\\
\\export fn callPrivFunction() void {
\\ var foo = Foo{};
\\ Foo.privateFunction(foo);
\\}
, &[_][]const u8{
"tmp.zig:5:8: error: 'privateFunction' is private",
"foo.zig:2:5: note: declared here",
});
}
{
const case = ctx.obj("multiple files with private member instance function error", .{});
case.backend = .stage1;
case.addSourceFile("foo.zig",
\\pub const Foo = struct {
\\ fn privateFunction(self: *Foo) void { _ = self; }
\\};
);
case.addError(
\\const Foo = @import("foo.zig",).Foo;
\\
\\export fn callPrivFunction() void {
\\ var foo = Foo{};
\\ foo.privateFunction();
\\}
, &[_][]const u8{
"tmp.zig:5:8: error: 'privateFunction' is private",
"foo.zig:2:5: note: declared here",
});
}
{
const case = ctx.obj("export collision", .{});
case.backend = .stage1;
case.addSourceFile("foo.zig",
\\export fn bar() void {}
\\pub const baz = 1234;
);
case.addError(
\\const foo = @import("foo.zig",);
\\
\\export fn bar() usize {
\\ return foo.baz;
\\}
, &[_][]const u8{
"foo.zig:1:1: error: exported symbol collision: 'bar'",
"tmp.zig:3:1: note: other symbol here",
});
}
ctx.objErrStage1("non-printable invalid character", "\xff\xfe" ++
"fn foo() bool {\r\n" ++
" return true;\r\n" ++
"}\r\n", &[_][]const u8{
"tmp.zig:1:1: error: expected test, comptime, var decl, or container field, found 'invalid bytes'",
"tmp.zig:1:1: note: invalid byte: '\\xff'",
});
ctx.objErrStage1("non-printable invalid character with escape alternative", "fn foo() bool {\n" ++
"\treturn true;\n" ++
"}\n", &[_][]const u8{
"tmp.zig:2:1: error: invalid character: '\\t'",
});
{
const case = ctx.obj("multiline error messages", .{});
case.backend = .stage2;
case.addError(
\\comptime {
\\ @compileError("hello\nworld");
\\}
, &[_][]const u8{
\\:2:5: error: hello
\\ world
});
case.addError(
\\comptime {
\\ @compileError(
\\ \\
\\ \\hello!
\\ \\I'm a multiline error message.
\\ \\I hope to be very useful!
\\ \\
\\ \\also I will leave this trailing newline here if you don't mind
\\ \\
\\ );
\\}
, &[_][]const u8{
\\:2:5: error:
\\ hello!
\\ I'm a multiline error message.
\\ I hope to be very useful!
\\
\\ also I will leave this trailing newline here if you don't mind
\\
});
}
{
const case = ctx.obj("missing semicolon at EOF", .{});
case.addError(
\\const foo = 1
, &[_][]const u8{
\\:1:14: error: expected ';' after declaration
});
}
{
const case = ctx.obj("argument causes error", .{});
case.backend = .stage2;
case.addSourceFile("b.zig",
\\pub const ElfDynLib = struct {
\\ pub fn lookup(self: *ElfDynLib, comptime T: type) ?T {
\\ _ = self;
\\ return undefined;
\\ }
\\};
);
case.addError(
\\pub export fn entry() void {
\\ var lib: @import("b.zig").ElfDynLib = undefined;
\\ _ = lib.lookup(fn () void);
\\}
, &[_][]const u8{
":3:12: error: unable to resolve comptime value",
":3:12: note: argument to function being called at comptime must be comptime-known",
":2:55: note: expression is evaluated at comptime because the generic function was instantiated with a comptime-only return type",
});
}
{
const case = ctx.obj("astgen failure in file struct", .{});
case.backend = .stage2;
case.addSourceFile("b.zig",
\\+
);
case.addError(
\\pub export fn entry() void {
\\ _ = (@sizeOf(@import("b.zig")));
\\}
, &[_][]const u8{
":1:1: error: expected type expression, found '+'",
});
}
{
const case = ctx.obj("invalid store to comptime field", .{});
case.backend = .stage2;
case.addSourceFile("a.zig",
\\pub const S = struct {
\\ comptime foo: u32 = 1,
\\ bar: u32,
\\ pub fn foo(x: @This()) void {
\\ _ = x;
\\ }
\\};
);
case.addError(
\\const a = @import("a.zig");
\\
\\export fn entry() void {
\\ _ = a.S.foo(a.S{ .foo = 2, .bar = 2 });
\\}
, &[_][]const u8{
":4:23: error: value stored in comptime field does not match the default value of the field",
":2:25: note: default value set here",
});
}
// TODO test this in stage2, but we won't even try in stage1
//ctx.objErrStage1("inline fn calls itself indirectly",
// \\export fn foo() void {
// \\ bar();
// \\}
// \\fn bar() callconv(.Inline) void {
// \\ baz();
// \\ quux();
// \\}
// \\fn baz() callconv(.Inline) void {
// \\ bar();
// \\ quux();
// \\}
// \\extern fn quux() void;
//, &[_][]const u8{
// "tmp.zig:4:1: error: unable to inline function",
//});
//ctx.objErrStage1("save reference to inline function",
// \\export fn foo() void {
// \\ quux(@ptrToInt(bar));
// \\}
// \\fn bar() callconv(.Inline) void { }
// \\extern fn quux(usize) void;
//, &[_][]const u8{
// "tmp.zig:4:1: error: unable to inline function",
//});
}