zig/test/compile_errors.zig

1886 lines
62 KiB
Zig

const tests = @import("tests.zig");
pub fn addCases(cases: &tests.CompileErrorContext) {
cases.add("implicit semicolon - block statement",
\\export fn entry() {
\\ {}
\\ var good = {};
\\ ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - block expr",
\\export fn entry() {
\\ _ = {};
\\ var good = {};
\\ _ = {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - comptime statement",
\\export fn entry() {
\\ comptime {}
\\ var good = {};
\\ comptime ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - comptime expression",
\\export fn entry() {
\\ _ = comptime {};
\\ var good = {};
\\ _ = comptime {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - defer",
\\export fn entry() {
\\ defer {}
\\ var good = {};
\\ defer ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: expected token ';', found 'var'");
cases.add("implicit semicolon - if statement",
\\export fn entry() {
\\ if(true) {}
\\ var good = {};
\\ if(true) ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if expression",
\\export fn entry() {
\\ _ = if(true) {};
\\ var good = {};
\\ _ = if(true) {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if-else statement",
\\export fn entry() {
\\ if(true) {} else {}
\\ var good = {};
\\ if(true) ({}) else ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if-else expression",
\\export fn entry() {
\\ _ = if(true) {} else {};
\\ var good = {};
\\ _ = if(true) {} else {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if-else-if statement",
\\export fn entry() {
\\ if(true) {} else if(true) {}
\\ var good = {};
\\ if(true) ({}) else if(true) ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if-else-if expression",
\\export fn entry() {
\\ _ = if(true) {} else if(true) {};
\\ var good = {};
\\ _ = if(true) {} else if(true) {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if-else-if-else statement",
\\export fn entry() {
\\ if(true) {} else if(true) {} else {}
\\ var good = {};
\\ if(true) ({}) else if(true) ({}) else ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - if-else-if-else expression",
\\export fn entry() {
\\ _ = if(true) {} else if(true) {} else {};
\\ var good = {};
\\ _ = if(true) {} else if(true) {} else {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - test statement",
\\export fn entry() {
\\ if (foo()) |_| {}
\\ var good = {};
\\ if (foo()) |_| ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - test expression",
\\export fn entry() {
\\ _ = if (foo()) |_| {};
\\ var good = {};
\\ _ = if (foo()) |_| {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - while statement",
\\export fn entry() {
\\ while(true) {}
\\ var good = {};
\\ while(true) ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - while expression",
\\export fn entry() {
\\ _ = while(true) {};
\\ var good = {};
\\ _ = while(true) {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - while-continue statement",
\\export fn entry() {
\\ while(true):({}) {}
\\ var good = {};
\\ while(true):({}) ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - while-continue expression",
\\export fn entry() {
\\ _ = while(true):({}) {};
\\ var good = {};
\\ _ = while(true):({}) {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - for statement",
\\export fn entry() {
\\ for(foo()) {}
\\ var good = {};
\\ for(foo()) ({})
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("implicit semicolon - for expression",
\\export fn entry() {
\\ _ = for(foo()) {};
\\ var good = {};
\\ _ = for(foo()) {}
\\ var bad = {};
\\}
, ".tmp_source.zig:5:5: error: invalid token: 'var'");
cases.add("multiple function definitions",
\\fn a() {}
\\fn a() {}
\\export fn entry() { a(); }
, ".tmp_source.zig:2:1: error: redefinition of 'a'");
cases.add("unreachable with return",
\\fn a() -> noreturn {return;}
\\export fn entry() { a(); }
, ".tmp_source.zig:1:21: error: expected type 'noreturn', found 'void'");
cases.add("control reaches end of non-void function",
\\fn a() -> i32 {}
\\export fn entry() { _ = a(); }
, ".tmp_source.zig:1:15: error: expected type 'i32', found 'void'");
cases.add("undefined function call",
\\export fn a() {
\\ b();
\\}
, ".tmp_source.zig:2:5: error: use of undeclared identifier 'b'");
cases.add("wrong number of arguments",
\\export fn a() {
\\ b(1);
\\}
\\fn b(a: i32, b: i32, c: i32) { }
, ".tmp_source.zig:2:6: error: expected 3 arguments, found 1");
cases.add("invalid type",
\\fn a() -> bogus {}
\\export fn entry() { _ = a(); }
, ".tmp_source.zig:1:11: error: use of undeclared identifier 'bogus'");
cases.add("pointer to unreachable",
\\fn a() -> &noreturn {}
\\export fn entry() { _ = a(); }
, ".tmp_source.zig:1:12: error: pointer to unreachable not allowed");
cases.add("unreachable code",
\\export fn a() {
\\ return;
\\ b();
\\}
\\
\\fn b() {}
, ".tmp_source.zig:3:5: error: unreachable code");
cases.add("bad import",
\\const bogus = @import("bogus-does-not-exist.zig");
\\export fn entry() { bogus.bogo(); }
, ".tmp_source.zig:1:15: error: unable to find 'bogus-does-not-exist.zig'");
cases.add("undeclared identifier",
\\export fn a() {
\\ b +
\\ c
\\}
,
".tmp_source.zig:2:5: error: use of undeclared identifier 'b'",
".tmp_source.zig:3:5: error: use of undeclared identifier 'c'");
cases.add("parameter redeclaration",
\\fn f(a : i32, a : i32) {
\\}
\\export fn entry() { f(1, 2); }
, ".tmp_source.zig:1:15: error: redeclaration of variable 'a'");
cases.add("local variable redeclaration",
\\export fn f() {
\\ const a : i32 = 0;
\\ const a = 0;
\\}
, ".tmp_source.zig:3:5: error: redeclaration of variable 'a'");
cases.add("local variable redeclares parameter",
\\fn f(a : i32) {
\\ const a = 0;
\\}
\\export fn entry() { f(1); }
, ".tmp_source.zig:2:5: error: redeclaration of variable 'a'");
cases.add("variable has wrong type",
\\export fn f() -> i32 {
\\ const a = c"a";
\\ a
\\}
, ".tmp_source.zig:3:5: error: expected type 'i32', found '&const u8'");
cases.add("if condition is bool, not int",
\\export fn f() {
\\ if (0) {}
\\}
, ".tmp_source.zig:2:9: error: integer value 0 cannot be implicitly casted to type 'bool'");
cases.add("assign unreachable",
\\export fn f() {
\\ const a = return;
\\}
, ".tmp_source.zig:2:5: error: unreachable code");
cases.add("unreachable variable",
\\export fn f() {
\\ const a: noreturn = {};
\\}
, ".tmp_source.zig:2:14: error: variable of type 'noreturn' not allowed");
cases.add("unreachable parameter",
\\fn f(a: noreturn) {}
\\export fn entry() { f(); }
, ".tmp_source.zig:1:9: error: parameter of type 'noreturn' not allowed");
cases.add("bad assignment target",
\\export fn f() {
\\ 3 = 3;
\\}
, ".tmp_source.zig:2:7: error: cannot assign to constant");
cases.add("assign to constant variable",
\\export fn f() {
\\ const a = 3;
\\ a = 4;
\\}
, ".tmp_source.zig:3:7: error: cannot assign to constant");
cases.add("use of undeclared identifier",
\\export fn f() {
\\ b = 3;
\\}
, ".tmp_source.zig:2:5: error: use of undeclared identifier 'b'");
cases.add("const is a statement, not an expression",
\\export fn f() {
\\ (const a = 0);
\\}
, ".tmp_source.zig:2:6: error: invalid token: 'const'");
cases.add("array access of undeclared identifier",
\\export fn f() {
\\ i[i] = i[i];
\\}
, ".tmp_source.zig:2:5: error: use of undeclared identifier 'i'",
".tmp_source.zig:2:12: error: use of undeclared identifier 'i'");
cases.add("array access of non array",
\\export fn f() {
\\ var bad : bool = undefined;
\\ bad[bad] = bad[bad];
\\}
, ".tmp_source.zig:3:8: error: array access of non-array type 'bool'",
".tmp_source.zig:3:19: error: array access of non-array type 'bool'");
cases.add("array access with non integer index",
\\export fn f() {
\\ var array = "aoeu";
\\ var bad = false;
\\ array[bad] = array[bad];
\\}
, ".tmp_source.zig:4:11: error: expected type 'usize', found 'bool'",
".tmp_source.zig:4:24: error: expected type 'usize', found 'bool'");
cases.add("write to const global variable",
\\const x : i32 = 99;
\\fn f() {
\\ x = 1;
\\}
\\export fn entry() { f(); }
, ".tmp_source.zig:3:7: error: cannot assign to constant");
cases.add("missing else clause",
\\fn f(b: bool) {
\\ const x : i32 = if (b) { 1 };
\\ const y = if (b) { i32(1) };
\\}
\\export fn entry() { f(true); }
, ".tmp_source.zig:2:30: error: integer value 1 cannot be implicitly casted to type 'void'",
".tmp_source.zig:3:15: error: incompatible types: 'i32' and 'void'");
cases.add("direct struct loop",
\\const A = struct { a : A, };
\\export fn entry() -> usize { @sizeOf(A) }
, ".tmp_source.zig:1:11: error: struct 'A' contains itself");
cases.add("indirect struct loop",
\\const A = struct { b : B, };
\\const B = struct { c : C, };
\\const C = struct { a : A, };
\\export fn entry() -> usize { @sizeOf(A) }
, ".tmp_source.zig:1:11: error: struct 'A' contains itself");
cases.add("invalid struct field",
\\const A = struct { x : i32, };
\\export fn f() {
\\ var a : A = undefined;
\\ a.foo = 1;
\\ const y = a.bar;
\\}
,
".tmp_source.zig:4:6: error: no member named 'foo' in 'A'",
".tmp_source.zig:5:16: error: no member named 'bar' in 'A'");
cases.add("redefinition of struct",
\\const A = struct { x : i32, };
\\const A = struct { y : i32, };
, ".tmp_source.zig:2:1: error: redefinition of 'A'");
cases.add("redefinition of enums",
\\const A = enum {};
\\const A = enum {};
, ".tmp_source.zig:2:1: error: redefinition of 'A'");
cases.add("redefinition of global variables",
\\var a : i32 = 1;
\\var a : i32 = 2;
,
".tmp_source.zig:2:1: error: redefinition of 'a'",
".tmp_source.zig:1:1: note: previous definition is here");
cases.add("byvalue struct parameter in exported function",
\\const A = struct { x : i32, };
\\export fn f(a : A) {}
, ".tmp_source.zig:2:13: error: byvalue types not yet supported on extern function parameters");
cases.add("byvalue struct return value in exported function",
\\const A = struct { x: i32, };
\\export fn f() -> A {
\\ A {.x = 1234 }
\\}
, ".tmp_source.zig:2:18: error: byvalue types not yet supported on extern function return values");
cases.add("duplicate field in struct value expression",
\\const A = struct {
\\ x : i32,
\\ y : i32,
\\ z : i32,
\\};
\\export fn f() {
\\ const a = A {
\\ .z = 1,
\\ .y = 2,
\\ .x = 3,
\\ .z = 4,
\\ };
\\}
, ".tmp_source.zig:11:9: error: duplicate field");
cases.add("missing field in struct value expression",
\\const A = struct {
\\ x : i32,
\\ y : i32,
\\ z : i32,
\\};
\\export fn f() {
\\ // we want the error on the '{' not the 'A' because
\\ // the A could be a complicated expression
\\ const a = A {
\\ .z = 4,
\\ .y = 2,
\\ };
\\}
, ".tmp_source.zig:9:17: error: missing field: 'x'");
cases.add("invalid field in struct value expression",
\\const A = struct {
\\ x : i32,
\\ y : i32,
\\ z : i32,
\\};
\\export fn f() {
\\ const a = A {
\\ .z = 4,
\\ .y = 2,
\\ .foo = 42,
\\ };
\\}
, ".tmp_source.zig:10:9: error: no member named 'foo' in 'A'");
cases.add("invalid break expression",
\\export fn f() {
\\ break;
\\}
, ".tmp_source.zig:2:5: error: break expression outside loop");
cases.add("invalid continue expression",
\\export fn f() {
\\ continue;
\\}
, ".tmp_source.zig:2:5: error: continue expression outside loop");
cases.add("invalid maybe type",
\\export fn f() {
\\ if (true) |x| { }
\\}
, ".tmp_source.zig:2:9: error: expected nullable type, found 'bool'");
cases.add("cast unreachable",
\\fn f() -> i32 {
\\ i32(return 1)
\\}
\\export fn entry() { _ = f(); }
, ".tmp_source.zig:2:8: error: unreachable code");
cases.add("invalid builtin fn",
\\fn f() -> @bogus(foo) {
\\}
\\export fn entry() { _ = f(); }
, ".tmp_source.zig:1:11: error: invalid builtin function: 'bogus'");
cases.add("top level decl dependency loop",
\\const a : @typeOf(b) = 0;
\\const b : @typeOf(a) = 0;
\\export fn entry() {
\\ const c = a + b;
\\}
, ".tmp_source.zig:1:1: error: 'a' depends on itself");
cases.add("noalias on non pointer param",
\\fn f(noalias x: i32) {}
\\export fn entry() { f(1234); }
, ".tmp_source.zig:1:6: error: noalias on non-pointer parameter");
cases.add("struct init syntax for array",
\\const foo = []u16{.x = 1024,};
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:1:18: error: type '[]u16' does not support struct initialization syntax");
cases.add("type variables must be constant",
\\var foo = u8;
\\export fn entry() -> foo {
\\ return 1;
\\}
, ".tmp_source.zig:1:1: error: variable of type 'type' must be constant");
cases.add("variables shadowing types",
\\const Foo = struct {};
\\const Bar = struct {};
\\
\\fn f(Foo: i32) {
\\ var Bar : i32 = undefined;
\\}
\\
\\export fn entry() {
\\ f(1234);
\\}
,
".tmp_source.zig:4:6: error: redefinition of 'Foo'",
".tmp_source.zig:1:1: note: previous definition is here",
".tmp_source.zig:5:5: error: redefinition of 'Bar'",
".tmp_source.zig:2:1: note: previous definition is here");
cases.add("switch expression - missing enumeration prong",
\\const Number = enum {
\\ One,
\\ Two,
\\ Three,
\\ Four,
\\};
\\fn f(n: Number) -> i32 {
\\ switch (n) {
\\ Number.One => 1,
\\ Number.Two => 2,
\\ Number.Three => i32(3),
\\ }
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:8:5: error: enumeration value 'Number.Four' not handled in switch");
cases.add("switch expression - duplicate enumeration prong",
\\const Number = enum {
\\ One,
\\ Two,
\\ Three,
\\ Four,
\\};
\\fn f(n: Number) -> i32 {
\\ switch (n) {
\\ Number.One => 1,
\\ Number.Two => 2,
\\ Number.Three => i32(3),
\\ Number.Four => 4,
\\ Number.Two => 2,
\\ }
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:13:15: error: duplicate switch value",
".tmp_source.zig:10:15: note: other value is here");
cases.add("switch expression - duplicate enumeration prong when else present",
\\const Number = enum {
\\ One,
\\ Two,
\\ Three,
\\ Four,
\\};
\\fn f(n: Number) -> i32 {
\\ switch (n) {
\\ Number.One => 1,
\\ Number.Two => 2,
\\ Number.Three => i32(3),
\\ Number.Four => 4,
\\ Number.Two => 2,
\\ else => 10,
\\ }
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:13:15: error: duplicate switch value",
".tmp_source.zig:10:15: note: other value is here");
cases.add("switch expression - multiple else prongs",
\\fn f(x: u32) {
\\ const value: bool = switch (x) {
\\ 1234 => false,
\\ else => true,
\\ else => true,
\\ };
\\}
\\export fn entry() {
\\ f(1234);
\\}
, ".tmp_source.zig:5:9: error: multiple else prongs in switch expression");
cases.add("switch expression - non exhaustive integer prongs",
\\fn foo(x: u8) {
\\ switch (x) {
\\ 0 => {},
\\ }
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
,
".tmp_source.zig:2:5: error: switch must handle all possibilities");
cases.add("switch expression - duplicate or overlapping integer value",
\\fn foo(x: u8) -> u8 {
\\ switch (x) {
\\ 0 ... 100 => u8(0),
\\ 101 ... 200 => 1,
\\ 201, 203 ... 207 => 2,
\\ 206 ... 255 => 3,
\\ }
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
,
".tmp_source.zig:6:9: error: duplicate switch value",
".tmp_source.zig:5:14: note: previous value is here");
cases.add("switch expression - switch on pointer type with no else",
\\fn foo(x: &u8) {
\\ switch (x) {
\\ &y => {},
\\ }
\\}
\\const y: u8 = 100;
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
,
".tmp_source.zig:2:5: error: else prong required when switching on type '&u8'");
cases.add("global variable initializer must be constant expression",
\\extern fn foo() -> i32;
\\const x = foo();
\\export fn entry() -> i32 { x }
, ".tmp_source.zig:2:11: error: unable to evaluate constant expression");
cases.add("array concatenation with wrong type",
\\const src = "aoeu";
\\const derp = usize(1234);
\\const a = derp ++ "foo";
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(a)) }
, ".tmp_source.zig:3:11: error: expected array or C string literal, found 'usize'");
cases.add("non compile time array concatenation",
\\fn f() -> []u8 {
\\ s ++ "foo"
\\}
\\var s: [10]u8 = undefined;
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:2:5: error: unable to evaluate constant expression");
cases.add("@cImport with bogus include",
\\const c = @cImport(@cInclude("bogus.h"));
\\export fn entry() -> usize { @sizeOf(@typeOf(c.bogo)) }
, ".tmp_source.zig:1:11: error: C import failed",
".h:1:10: note: 'bogus.h' file not found");
cases.add("address of number literal",
\\const x = 3;
\\const y = &x;
\\fn foo() -> &const i32 { y }
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:3:26: error: expected type '&const i32', found '&const (integer literal)'");
cases.add("integer overflow error",
\\const x : u8 = 300;
\\export fn entry() -> usize { @sizeOf(@typeOf(x)) }
, ".tmp_source.zig:1:16: error: integer value 300 cannot be implicitly casted to type 'u8'");
cases.add("incompatible number literals",
\\const x = 2 == 2.0;
\\export fn entry() -> usize { @sizeOf(@typeOf(x)) }
, ".tmp_source.zig:1:11: error: integer value 2 cannot be implicitly casted to type '(float literal)'");
cases.add("missing function call param",
\\const Foo = struct {
\\ a: i32,
\\ b: i32,
\\
\\ fn member_a(foo: &const Foo) -> i32 {
\\ return foo.a;
\\ }
\\ fn member_b(foo: &const Foo) -> i32 {
\\ return foo.b;
\\ }
\\};
\\
\\const member_fn_type = @typeOf(Foo.member_a);
\\const members = []member_fn_type {
\\ Foo.member_a,
\\ Foo.member_b,
\\};
\\
\\fn f(foo: &const Foo, index: usize) {
\\ const result = members[index]();
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:20:34: error: expected 1 arguments, found 0");
cases.add("missing function name and param name",
\\fn () {}
\\fn f(i32) {}
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
,
".tmp_source.zig:1:1: error: missing function name",
".tmp_source.zig:2:6: error: missing parameter name");
cases.add("wrong function type",
\\const fns = []fn(){ a, b, c };
\\fn a() -> i32 {0}
\\fn b() -> i32 {1}
\\fn c() -> i32 {2}
\\export fn entry() -> usize { @sizeOf(@typeOf(fns)) }
, ".tmp_source.zig:1:21: error: expected type 'fn()', found 'fn() -> i32'");
cases.add("extern function pointer mismatch",
\\const fns = [](fn(i32)->i32){ a, b, c };
\\pub fn a(x: i32) -> i32 {x + 0}
\\pub fn b(x: i32) -> i32 {x + 1}
\\export fn c(x: i32) -> i32 {x + 2}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(fns)) }
, ".tmp_source.zig:1:37: error: expected type 'fn(i32) -> i32', found 'extern fn(i32) -> i32'");
cases.add("implicit cast from f64 to f32",
\\const x : f64 = 1.0;
\\const y : f32 = x;
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(y)) }
, ".tmp_source.zig:2:17: error: expected type 'f32', found 'f64'");
cases.add("colliding invalid top level functions",
\\fn func() -> bogus {}
\\fn func() -> bogus {}
\\export fn entry() -> usize { @sizeOf(@typeOf(func)) }
,
".tmp_source.zig:2:1: error: redefinition of 'func'",
".tmp_source.zig:1:14: error: use of undeclared identifier 'bogus'");
cases.add("bogus compile var",
\\const x = @import("builtin").bogus;
\\export fn entry() -> usize { @sizeOf(@typeOf(x)) }
, ".tmp_source.zig:1:29: error: no member named 'bogus' in '");
cases.add("non constant expression in array size outside function",
\\const Foo = struct {
\\ y: [get()]u8,
\\};
\\var global_var: usize = 1;
\\fn get() -> usize { global_var }
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(Foo)) }
,
".tmp_source.zig:5:21: error: unable to evaluate constant expression",
".tmp_source.zig:2:12: note: called from here",
".tmp_source.zig:2:8: note: called from here");
cases.add("addition with non numbers",
\\const Foo = struct {
\\ field: i32,
\\};
\\const x = Foo {.field = 1} + Foo {.field = 2};
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(x)) }
, ".tmp_source.zig:4:28: error: invalid operands to binary expression: 'Foo' and 'Foo'");
cases.add("division by zero",
\\const lit_int_x = 1 / 0;
\\const lit_float_x = 1.0 / 0.0;
\\const int_x = u32(1) / u32(0);
\\const float_x = f32(1.0) / f32(0.0);
\\
\\export fn entry1() -> usize { @sizeOf(@typeOf(lit_int_x)) }
\\export fn entry2() -> usize { @sizeOf(@typeOf(lit_float_x)) }
\\export fn entry3() -> usize { @sizeOf(@typeOf(int_x)) }
\\export fn entry4() -> usize { @sizeOf(@typeOf(float_x)) }
,
".tmp_source.zig:1:21: error: division by zero is undefined",
".tmp_source.zig:2:25: error: division by zero is undefined",
".tmp_source.zig:3:22: error: division by zero is undefined",
".tmp_source.zig:4:26: error: division by zero is undefined");
cases.add("normal string with newline",
\\const foo = "a
\\b";
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:1:13: error: newline not allowed in string literal");
cases.add("invalid comparison for function pointers",
\\fn foo() {}
\\const invalid = foo > foo;
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(invalid)) }
, ".tmp_source.zig:2:21: error: operator not allowed for type 'fn()'");
cases.add("generic function instance with non-constant expression",
\\fn foo(comptime x: i32, y: i32) -> i32 { return x + y; }
\\fn test1(a: i32, b: i32) -> i32 {
\\ return foo(a, b);
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(test1)) }
, ".tmp_source.zig:3:16: error: unable to evaluate constant expression");
cases.add("goto jumping into block",
\\export fn f() {
\\ {
\\a_label:
\\ }
\\ goto a_label;
\\}
, ".tmp_source.zig:5:5: error: no label in scope named 'a_label'");
cases.add("goto jumping past a defer",
\\fn f(b: bool) {
\\ if (b) goto label;
\\ defer derp();
\\label:
\\}
\\fn derp(){}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:2:12: error: no label in scope named 'label'");
cases.add("assign null to non-nullable pointer",
\\const a: &u8 = null;
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(a)) }
, ".tmp_source.zig:1:16: error: expected type '&u8', found '(null)'");
cases.add("indexing an array of size zero",
\\const array = []u8{};
\\export fn foo() {
\\ const pointer = &array[0];
\\}
, ".tmp_source.zig:3:27: error: index 0 outside array of size 0");
cases.add("compile time division by zero",
\\const y = foo(0);
\\fn foo(x: u32) -> u32 {
\\ 1 / x
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(y)) }
,
".tmp_source.zig:3:7: error: division by zero is undefined",
".tmp_source.zig:1:14: note: called from here");
cases.add("branch on undefined value",
\\const x = if (undefined) true else false;
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(x)) }
, ".tmp_source.zig:1:15: error: use of undefined value");
cases.add("endless loop in function evaluation",
\\const seventh_fib_number = fibbonaci(7);
\\fn fibbonaci(x: i32) -> i32 {
\\ return fibbonaci(x - 1) + fibbonaci(x - 2);
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(seventh_fib_number)) }
,
".tmp_source.zig:3:21: error: evaluation exceeded 1000 backwards branches",
".tmp_source.zig:3:21: note: called from here");
cases.add("@embedFile with bogus file",
\\const resource = @embedFile("bogus.txt");
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(resource)) }
, ".tmp_source.zig:1:29: error: unable to find '", "/bogus.txt'");
cases.add("non-const expression in struct literal outside function",
\\const Foo = struct {
\\ x: i32,
\\};
\\const a = Foo {.x = get_it()};
\\extern fn get_it() -> i32;
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(a)) }
, ".tmp_source.zig:4:21: error: unable to evaluate constant expression");
cases.add("non-const expression function call with struct return value outside function",
\\const Foo = struct {
\\ x: i32,
\\};
\\const a = get_it();
\\fn get_it() -> Foo {
\\ global_side_effect = true;
\\ Foo {.x = 13}
\\}
\\var global_side_effect = false;
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(a)) }
,
".tmp_source.zig:6:24: error: unable to evaluate constant expression",
".tmp_source.zig:4:17: note: called from here");
cases.add("undeclared identifier error should mark fn as impure",
\\export fn foo() {
\\ test_a_thing();
\\}
\\fn test_a_thing() {
\\ bad_fn_call();
\\}
, ".tmp_source.zig:5:5: error: use of undeclared identifier 'bad_fn_call'");
cases.add("illegal comparison of types",
\\fn bad_eql_1(a: []u8, b: []u8) -> bool {
\\ a == b
\\}
\\const EnumWithData = enum {
\\ One,
\\ Two: i32,
\\};
\\fn bad_eql_2(a: &const EnumWithData, b: &const EnumWithData) -> bool {
\\ *a == *b
\\}
\\
\\export fn entry1() -> usize { @sizeOf(@typeOf(bad_eql_1)) }
\\export fn entry2() -> usize { @sizeOf(@typeOf(bad_eql_2)) }
,
".tmp_source.zig:2:7: error: operator not allowed for type '[]u8'",
".tmp_source.zig:9:8: error: operator not allowed for type 'EnumWithData'");
cases.add("non-const switch number literal",
\\export fn foo() {
\\ const x = switch (bar()) {
\\ 1, 2 => 1,
\\ 3, 4 => 2,
\\ else => 3,
\\ };
\\}
\\fn bar() -> i32 {
\\ 2
\\}
, ".tmp_source.zig:2:15: error: unable to infer expression type");
cases.add("atomic orderings of cmpxchg - failure stricter than success",
\\const AtomicOrder = @import("builtin").AtomicOrder;
\\export fn f() {
\\ var x: i32 = 1234;
\\ while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Monotonic, AtomicOrder.SeqCst)) {}
\\}
, ".tmp_source.zig:4:72: error: failure atomic ordering must be no stricter than success");
cases.add("atomic orderings of cmpxchg - success Monotonic or stricter",
\\const AtomicOrder = @import("builtin").AtomicOrder;
\\export fn f() {
\\ var x: i32 = 1234;
\\ while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Unordered, AtomicOrder.Unordered)) {}
\\}
, ".tmp_source.zig:4:49: error: success atomic ordering must be Monotonic or stricter");
cases.add("negation overflow in function evaluation",
\\const y = neg(-128);
\\fn neg(x: i8) -> i8 {
\\ -x
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(y)) }
,
".tmp_source.zig:3:5: error: negation caused overflow",
".tmp_source.zig:1:14: note: called from here");
cases.add("add overflow in function evaluation",
\\const y = add(65530, 10);
\\fn add(a: u16, b: u16) -> u16 {
\\ a + b
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(y)) }
,
".tmp_source.zig:3:7: error: operation caused overflow",
".tmp_source.zig:1:14: note: called from here");
cases.add("sub overflow in function evaluation",
\\const y = sub(10, 20);
\\fn sub(a: u16, b: u16) -> u16 {
\\ a - b
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(y)) }
,
".tmp_source.zig:3:7: error: operation caused overflow",
".tmp_source.zig:1:14: note: called from here");
cases.add("mul overflow in function evaluation",
\\const y = mul(300, 6000);
\\fn mul(a: u16, b: u16) -> u16 {
\\ a * b
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(y)) }
,
".tmp_source.zig:3:7: error: operation caused overflow",
".tmp_source.zig:1:14: note: called from here");
cases.add("truncate sign mismatch",
\\fn f() -> i8 {
\\ const x: u32 = 10;
\\ @truncate(i8, x)
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:3:19: error: expected signed integer type, found 'u32'");
cases.add("%return in function with non error return type",
\\export fn f() {
\\ %return something();
\\}
\\fn something() -> %void { }
,
".tmp_source.zig:2:5: error: expected type 'void', found 'error'");
cases.add("wrong return type for main",
\\pub fn main() { }
, ".tmp_source.zig:1:15: error: expected return type of main to be '%void', instead is 'void'");
cases.add("double ?? on main return value",
\\pub fn main() -> ??void {
\\}
, ".tmp_source.zig:1:18: error: expected return type of main to be '%void', instead is '??void'");
cases.add("invalid pointer for var type",
\\extern fn ext() -> usize;
\\var bytes: [ext()]u8 = undefined;
\\export fn f() {
\\ for (bytes) |*b, i| {
\\ *b = u8(i);
\\ }
\\}
, ".tmp_source.zig:2:13: error: unable to evaluate constant expression");
cases.add("export function with comptime parameter",
\\export fn foo(comptime x: i32, y: i32) -> i32{
\\ x + y
\\}
, ".tmp_source.zig:1:15: error: comptime parameter not allowed in extern function");
cases.add("extern function with comptime parameter",
\\extern fn foo(comptime x: i32, y: i32) -> i32;
\\fn f() -> i32 {
\\ foo(1, 2)
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:1:15: error: comptime parameter not allowed in extern function");
cases.add("convert fixed size array to slice with invalid size",
\\export fn f() {
\\ var array: [5]u8 = undefined;
\\ var foo = ([]const u32)(array)[0];
\\}
, ".tmp_source.zig:3:28: error: unable to convert [5]u8 to []const u32: size mismatch");
cases.add("non-pure function returns type",
\\var a: u32 = 0;
\\pub fn List(comptime T: type) -> type {
\\ a += 1;
\\ SmallList(T, 8)
\\}
\\
\\pub fn SmallList(comptime T: type, comptime STATIC_SIZE: usize) -> type {
\\ struct {
\\ items: []T,
\\ length: usize,
\\ prealloc_items: [STATIC_SIZE]T,
\\ }
\\}
\\
\\export fn function_with_return_type_type() {
\\ var list: List(i32) = undefined;
\\ list.length = 10;
\\}
, ".tmp_source.zig:3:7: error: unable to evaluate constant expression",
".tmp_source.zig:16:19: note: called from here");
cases.add("bogus method call on slice",
\\var self = "aoeu";
\\fn f(m: []const u8) {
\\ m.copy(u8, self[0..], m);
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:3:6: error: no member named 'copy' in '[]const u8'");
cases.add("wrong number of arguments for method fn call",
\\const Foo = struct {
\\ fn method(self: &const Foo, a: i32) {}
\\};
\\fn f(foo: &const Foo) {
\\
\\ foo.method(1, 2);
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(f)) }
, ".tmp_source.zig:6:15: error: expected 2 arguments, found 3");
cases.add("assign through constant pointer",
\\export fn f() {
\\ var cstr = c"Hat";
\\ cstr[0] = 'W';
\\}
, ".tmp_source.zig:3:11: error: cannot assign to constant");
cases.add("assign through constant slice",
\\export fn f() {
\\ var cstr: []const u8 = "Hat";
\\ cstr[0] = 'W';
\\}
, ".tmp_source.zig:3:11: error: cannot assign to constant");
cases.add("main function with bogus args type",
\\pub fn main(args: [][]bogus) -> %void {}
, ".tmp_source.zig:1:23: error: use of undeclared identifier 'bogus'");
cases.add("for loop missing element param",
\\fn foo(blah: []u8) {
\\ for (blah) { }
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:2:5: error: for loop expression missing element parameter");
cases.add("misspelled type with pointer only reference",
\\const JasonHM = u8;
\\const JasonList = &JsonNode;
\\
\\const JsonOA = enum {
\\ JSONArray: JsonList,
\\ JSONObject: JasonHM,
\\};
\\
\\const JsonType = enum {
\\ JSONNull: void,
\\ JSONInteger: isize,
\\ JSONDouble: f64,
\\ JSONBool: bool,
\\ JSONString: []u8,
\\ JSONArray,
\\ JSONObject,
\\};
\\
\\pub const JsonNode = struct {
\\ kind: JsonType,
\\ jobject: ?JsonOA,
\\};
\\
\\fn foo() {
\\ var jll: JasonList = undefined;
\\ jll.init(1234);
\\ var jd = JsonNode {.kind = JsonType.JSONArray , .jobject = JsonOA.JSONArray {jll} };
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:5:16: error: use of undeclared identifier 'JsonList'");
cases.add("method call with first arg type primitive",
\\const Foo = struct {
\\ x: i32,
\\
\\ fn init(x: i32) -> Foo {
\\ Foo {
\\ .x = x,
\\ }
\\ }
\\};
\\
\\export fn f() {
\\ const derp = Foo.init(3);
\\
\\ derp.init();
\\}
, ".tmp_source.zig:14:5: error: expected type 'i32', found '&const Foo'");
cases.add("method call with first arg type wrong container",
\\pub const List = struct {
\\ len: usize,
\\ allocator: &Allocator,
\\
\\ pub fn init(allocator: &Allocator) -> List {
\\ List {
\\ .len = 0,
\\ .allocator = allocator,
\\ }
\\ }
\\};
\\
\\pub var global_allocator = Allocator {
\\ .field = 1234,
\\};
\\
\\pub const Allocator = struct {
\\ field: i32,
\\};
\\
\\export fn foo() {
\\ var x = List.init(&global_allocator);
\\ x.init();
\\}
, ".tmp_source.zig:23:5: error: expected type '&Allocator', found '&List'");
cases.add("binary not on number literal",
\\const TINY_QUANTUM_SHIFT = 4;
\\const TINY_QUANTUM_SIZE = 1 << TINY_QUANTUM_SHIFT;
\\var block_aligned_stuff: usize = (4 + TINY_QUANTUM_SIZE) & ~(TINY_QUANTUM_SIZE - 1);
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(block_aligned_stuff)) }
, ".tmp_source.zig:3:60: error: unable to perform binary not operation on type '(integer literal)'");
cases.addCase({
const tc = cases.create("multiple files with private function error",
\\const foo = @import("foo.zig");
\\
\\export fn callPrivFunction() {
\\ foo.privateFunction();
\\}
,
".tmp_source.zig:4:8: error: 'privateFunction' is private",
"foo.zig:1:1: note: declared here");
tc.addSourceFile("foo.zig",
\\fn privateFunction() { }
);
tc
});
cases.add("container init with non-type",
\\const zero: i32 = 0;
\\const a = zero{1};
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(a)) }
, ".tmp_source.zig:2:11: error: expected type, found 'i32'");
cases.add("assign to constant field",
\\const Foo = struct {
\\ field: i32,
\\};
\\export fn derp() {
\\ const f = Foo {.field = 1234,};
\\ f.field = 0;
\\}
, ".tmp_source.zig:6:13: error: cannot assign to constant");
cases.add("return from defer expression",
\\pub fn testTrickyDefer() -> %void {
\\ defer canFail() %% {};
\\
\\ defer %return canFail();
\\
\\ const a = maybeInt() ?? return;
\\}
\\
\\fn canFail() -> %void { }
\\
\\pub fn maybeInt() -> ?i32 {
\\ return 0;
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(testTrickyDefer)) }
, ".tmp_source.zig:4:11: error: cannot return from defer expression");
cases.add("attempt to access var args out of bounds",
\\fn add(args: ...) -> i32 {
\\ args[0] + args[1]
\\}
\\
\\fn foo() -> i32 {
\\ add(i32(1234))
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
,
".tmp_source.zig:2:19: error: index 1 outside argument list of size 1",
".tmp_source.zig:6:8: note: called from here");
cases.add("pass integer literal to var args",
\\fn add(args: ...) -> i32 {
\\ var sum = i32(0);
\\ {comptime var i: usize = 0; inline while (i < args.len) : (i += 1) {
\\ sum += args[i];
\\ }}
\\ return sum;
\\}
\\
\\fn bar() -> i32 {
\\ add(1, 2, 3, 4)
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(bar)) }
, ".tmp_source.zig:10:9: error: parameter of type '(integer literal)' requires comptime");
cases.add("assign too big number to u16",
\\export fn foo() {
\\ var vga_mem: u16 = 0xB8000;
\\}
, ".tmp_source.zig:2:24: error: integer value 753664 cannot be implicitly casted to type 'u16'");
cases.add("set global variable alignment to non power of 2",
\\const some_data: [100]u8 = undefined;
\\comptime {
\\ @setGlobalAlign(some_data, 3);
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(some_data)) }
, ".tmp_source.zig:3:32: error: alignment value must be power of 2");
cases.add("compile log",
\\export fn foo() {
\\ comptime bar(12, "hi");
\\}
\\fn bar(a: i32, b: []const u8) {
\\ @compileLog("begin");
\\ @compileLog("a", a, "b", b);
\\ @compileLog("end");
\\}
,
".tmp_source.zig:5:5: error: found compile log statement",
".tmp_source.zig:2:17: note: called from here",
".tmp_source.zig:6:5: error: found compile log statement",
".tmp_source.zig:2:17: note: called from here",
".tmp_source.zig:7:5: error: found compile log statement",
".tmp_source.zig:2:17: note: called from here");
cases.add("casting bit offset pointer to regular pointer",
\\const u2 = @IntType(false, 2);
\\const u3 = @IntType(false, 3);
\\
\\const BitField = packed struct {
\\ a: u3,
\\ b: u3,
\\ c: u2,
\\};
\\
\\fn foo(bit_field: &const BitField) -> u3 {
\\ return bar(&bit_field.b);
\\}
\\
\\fn bar(x: &const u3) -> u3 {
\\ return *x;
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:11:26: error: expected type '&const u3', found '&:3:6 const u3'");
cases.add("referring to a struct that is invalid",
\\const UsbDeviceRequest = struct {
\\ Type: u8,
\\};
\\
\\export fn foo() {
\\ comptime assert(@sizeOf(UsbDeviceRequest) == 0x8);
\\}
\\
\\fn assert(ok: bool) {
\\ if (!ok) unreachable;
\\}
,
".tmp_source.zig:10:14: error: unable to evaluate constant expression",
".tmp_source.zig:6:20: note: called from here");
cases.add("control flow uses comptime var at runtime",
\\export fn foo() {
\\ comptime var i = 0;
\\ while (i < 5) : (i += 1) {
\\ bar();
\\ }
\\}
\\
\\fn bar() { }
,
".tmp_source.zig:3:5: error: control flow attempts to use compile-time variable at runtime",
".tmp_source.zig:3:24: note: compile-time variable assigned here");
cases.add("ignored return value",
\\export fn foo() {
\\ bar();
\\}
\\fn bar() -> i32 { 0 }
, ".tmp_source.zig:2:8: error: expression value is ignored");
cases.add("ignored assert-err-ok return value",
\\export fn foo() {
\\ %%bar();
\\}
\\fn bar() -> %i32 { 0 }
, ".tmp_source.zig:2:5: error: expression value is ignored");
cases.add("ignored statement value",
\\export fn foo() {
\\ 1;
\\}
, ".tmp_source.zig:2:5: error: expression value is ignored");
cases.add("ignored comptime statement value",
\\export fn foo() {
\\ comptime {1;}
\\}
, ".tmp_source.zig:2:15: error: expression value is ignored");
cases.add("ignored comptime value",
\\export fn foo() {
\\ comptime 1;
\\}
, ".tmp_source.zig:2:5: error: expression value is ignored");
cases.add("ignored defered statement value",
\\export fn foo() {
\\ defer {1;}
\\}
, ".tmp_source.zig:2:12: error: expression value is ignored");
cases.add("ignored defered statement value",
\\export fn foo() {
\\ defer bar();
\\}
\\fn bar() -> %i32 { 0 }
, ".tmp_source.zig:2:14: error: expression value is ignored");
cases.add("integer literal on a non-comptime var",
\\export fn foo() {
\\ var i = 0;
\\ while (i < 10) : (i += 1) { }
\\}
, ".tmp_source.zig:2:5: error: unable to infer variable type");
cases.add("undefined literal on a non-comptime var",
\\export fn foo() {
\\ var i = undefined;
\\ i = i32(1);
\\}
, ".tmp_source.zig:2:5: error: unable to infer variable type");
cases.add("dereference an array",
\\var s_buffer: [10]u8 = undefined;
\\pub fn pass(in: []u8) -> []u8 {
\\ var out = &s_buffer;
\\ *out[0] = in[0];
\\ return (*out)[0..1];
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(pass)) }
, ".tmp_source.zig:4:5: error: attempt to dereference non pointer type '[10]u8'");
cases.add("pass const ptr to mutable ptr fn",
\\fn foo() -> bool {
\\ const a = ([]const u8)("a");
\\ const b = &a;
\\ return ptrEql(b, b);
\\}
\\fn ptrEql(a: &[]const u8, b: &[]const u8) -> bool {
\\ return true;
\\}
\\
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:4:19: error: expected type '&[]const u8', found '&const []const u8'");
cases.addCase({
const tc = cases.create("export collision",
\\const foo = @import("foo.zig");
\\
\\export fn bar() -> usize {
\\ return foo.baz;
\\}
,
"foo.zig:1:8: error: exported symbol collision: 'bar'",
".tmp_source.zig:3:8: note: other symbol is here");
tc.addSourceFile("foo.zig",
\\export fn bar() {}
\\pub const baz = 1234;
);
tc
});
cases.add("pass non-copyable type by value to function",
\\const Point = struct { x: i32, y: i32, };
\\fn foo(p: Point) { }
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:2:11: error: type 'Point' is not copyable; cannot pass by value");
cases.add("implicit cast from array to mutable slice",
\\var global_array: [10]i32 = undefined;
\\fn foo(param: []i32) {}
\\export fn entry() {
\\ foo(global_array);
\\}
, ".tmp_source.zig:4:9: error: expected type '[]i32', found '[10]i32'");
cases.add("ptrcast to non-pointer",
\\export fn entry(a: &i32) -> usize {
\\ return @ptrCast(usize, a);
\\}
, ".tmp_source.zig:2:21: error: expected pointer, found 'usize'");
cases.add("too many error values to cast to small integer",
\\error A; error B; error C; error D; error E; error F; error G; error H;
\\const u2 = @IntType(false, 2);
\\fn foo(e: error) -> u2 {
\\ return u2(e);
\\}
\\export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
, ".tmp_source.zig:4:14: error: too many error values to fit in 'u2'");
cases.add("asm at compile time",
\\comptime {
\\ doSomeAsm();
\\}
\\
\\fn doSomeAsm() {
\\ asm volatile (
\\ \\.globl aoeu;
\\ \\.type aoeu, @function;
\\ \\.set aoeu, derp;
\\ );
\\}
, ".tmp_source.zig:6:5: error: unable to evaluate constant expression");
cases.add("invalid member of builtin enum",
\\const builtin = @import("builtin");
\\export fn entry() {
\\ const foo = builtin.Arch.x86;
\\}
, ".tmp_source.zig:3:29: error: container 'Arch' has no member called 'x86'");
cases.add("int to ptr of 0 bits",
\\export fn foo() {
\\ var x: usize = 0x1000;
\\ var y: &void = @intToPtr(&void, x);
\\}
, ".tmp_source.zig:3:31: error: type '&void' has 0 bits and cannot store information");
cases.add("@fieldParentPtr - non struct",
\\const Foo = i32;
\\export fn foo(a: &i32) -> &Foo {
\\ return @fieldParentPtr(Foo, "a", a);
\\}
, ".tmp_source.zig:3:28: error: expected struct type, found 'i32'");
cases.add("@fieldParentPtr - bad field name",
\\const Foo = struct {
\\ derp: i32,
\\};
\\export fn foo(a: &i32) -> &Foo {
\\ return @fieldParentPtr(Foo, "a", a);
\\}
, ".tmp_source.zig:5:33: error: struct 'Foo' has no field 'a'");
cases.add("@fieldParentPtr - field pointer is not pointer",
\\const Foo = struct {
\\ a: i32,
\\};
\\export fn foo(a: i32) -> &Foo {
\\ return @fieldParentPtr(Foo, "a", a);
\\}
, ".tmp_source.zig:5:38: error: expected pointer, found 'i32'");
cases.add("@fieldParentPtr - comptime field ptr not based on struct",
\\const Foo = struct {
\\ a: i32,
\\ b: i32,
\\};
\\const foo = Foo { .a = 1, .b = 2, };
\\
\\comptime {
\\ const field_ptr = @intToPtr(&i32, 0x1234);
\\ const another_foo_ptr = @fieldParentPtr(Foo, "b", field_ptr);
\\}
, ".tmp_source.zig:9:55: error: pointer value not based on parent struct");
cases.add("@fieldParentPtr - comptime wrong field index",
\\const Foo = struct {
\\ a: i32,
\\ b: i32,
\\};
\\const foo = Foo { .a = 1, .b = 2, };
\\
\\comptime {
\\ const another_foo_ptr = @fieldParentPtr(Foo, "b", &foo.a);
\\}
, ".tmp_source.zig:8:29: error: field 'b' has index 1 but pointer value is index 0 of struct 'Foo'");
cases.add("@offsetOf - non struct",
\\const Foo = i32;
\\export fn foo() -> usize {
\\ return @offsetOf(Foo, "a");
\\}
, ".tmp_source.zig:3:22: error: expected struct type, found 'i32'");
cases.add("@offsetOf - bad field name",
\\const Foo = struct {
\\ derp: i32,
\\};
\\export fn foo() -> usize {
\\ return @offsetOf(Foo, "a");
\\}
, ".tmp_source.zig:5:27: error: struct 'Foo' has no field 'a'");
cases.addExe("missing main fn in executable",
\\
, "error: no member named 'main' in '");
cases.addExe("private main fn",
\\fn main() {}
,
"error: 'main' is private",
".tmp_source.zig:1:1: note: declared here");
cases.add("@setGlobalAlign extern variable",
\\extern var foo: i32;
\\comptime {
\\ @setGlobalAlign(foo, 4);
\\}
,
".tmp_source.zig:3:5: error: cannot set alignment of external variable 'foo'",
".tmp_source.zig:1:8: note: declared here");
cases.add("@setGlobalAlign extern fn",
\\extern fn foo();
\\comptime {
\\ @setGlobalAlign(foo, 4);
\\}
,
".tmp_source.zig:3:5: error: cannot set alignment of external function 'foo'",
".tmp_source.zig:1:8: note: declared here");
cases.add("@setGlobalSection extern variable",
\\extern var foo: i32;
\\comptime {
\\ @setGlobalSection(foo, ".text2");
\\}
,
".tmp_source.zig:3:5: error: cannot set section of external variable 'foo'",
".tmp_source.zig:1:8: note: declared here");
cases.add("@setGlobalSection extern fn",
\\extern fn foo();
\\comptime {
\\ @setGlobalSection(foo, ".text2");
\\}
,
".tmp_source.zig:3:5: error: cannot set section of external function 'foo'",
".tmp_source.zig:1:8: note: declared here");
cases.add("returning address of local variable - simple",
\\export fn foo() -> &i32 {
\\ var a: i32 = undefined;
\\ return &a;
\\}
,
".tmp_source.zig:3:13: error: function returns address of local variable");
cases.add("returning address of local variable - phi",
\\export fn foo(c: bool) -> &i32 {
\\ var a: i32 = undefined;
\\ var b: i32 = undefined;
\\ return if (c) &a else &b;
\\}
,
".tmp_source.zig:4:12: error: function returns address of local variable");
cases.add("inner struct member shadowing outer struct member",
\\fn A() -> type {
\\ struct {
\\ b: B(),
\\
\\ const Self = this;
\\
\\ fn B() -> type {
\\ struct {
\\ const Self = this;
\\ }
\\ }
\\ }
\\}
\\comptime {
\\ assert(A().B().Self != A().Self);
\\}
\\fn assert(ok: bool) {
\\ if (!ok) unreachable;
\\}
,
".tmp_source.zig:9:17: error: redefinition of 'Self'",
".tmp_source.zig:5:9: note: previous definition is here");
cases.add("while expected bool, got nullable",
\\export fn foo() {
\\ while (bar()) {}
\\}
\\fn bar() -> ?i32 { 1 }
,
".tmp_source.zig:2:15: error: expected type 'bool', found '?i32'");
cases.add("while expected bool, got error union",
\\export fn foo() {
\\ while (bar()) {}
\\}
\\fn bar() -> %i32 { 1 }
,
".tmp_source.zig:2:15: error: expected type 'bool', found '%i32'");
cases.add("while expected nullable, got bool",
\\export fn foo() {
\\ while (bar()) |x| {}
\\}
\\fn bar() -> bool { true }
,
".tmp_source.zig:2:15: error: expected nullable type, found 'bool'");
cases.add("while expected nullable, got error union",
\\export fn foo() {
\\ while (bar()) |x| {}
\\}
\\fn bar() -> %i32 { 1 }
,
".tmp_source.zig:2:15: error: expected nullable type, found '%i32'");
cases.add("while expected error union, got bool",
\\export fn foo() {
\\ while (bar()) |x| {} else |err| {}
\\}
\\fn bar() -> bool { true }
,
".tmp_source.zig:2:15: error: expected error union type, found 'bool'");
cases.add("while expected error union, got nullable",
\\export fn foo() {
\\ while (bar()) |x| {} else |err| {}
\\}
\\fn bar() -> ?i32 { 1 }
,
".tmp_source.zig:2:15: error: expected error union type, found '?i32'");
cases.add("inline fn calls itself indirectly",
\\export fn foo() {
\\ bar();
\\}
\\inline fn bar() {
\\ baz();
\\ quux();
\\}
\\inline fn baz() {
\\ bar();
\\ quux();
\\}
\\extern fn quux();
,
".tmp_source.zig:4:8: error: unable to inline function");
cases.add("save reference to inline function",
\\export fn foo() {
\\ quux(usize(bar));
\\}
\\inline fn bar() { }
\\extern fn quux(usize);
,
".tmp_source.zig:4:8: error: unable to inline function");
cases.add("signed integer division",
\\export fn foo(a: i32, b: i32) -> i32 {
\\ a / b
\\}
,
".tmp_source.zig:2:7: error: division with 'i32' and 'i32': signed integers must use @divTrunc, @divFloor, or @divExact");
cases.add("signed integer remainder division",
\\export fn foo(a: i32, b: i32) -> i32 {
\\ a % b
\\}
,
".tmp_source.zig:2:7: error: remainder division with 'i32' and 'i32': signed integers and floats must use @rem or @mod");
cases.add("cast negative value to unsigned integer",
\\comptime {
\\ const value: i32 = -1;
\\ const unsigned = u32(value);
\\}
,
".tmp_source.zig:3:25: error: attempt to cast negative value to unsigned integer");
cases.add("compile-time division by zero",
\\comptime {
\\ const a: i32 = 1;
\\ const b: i32 = 0;
\\ const c = a / b;
\\}
,
".tmp_source.zig:4:17: error: division by zero is undefined");
cases.add("compile-time remainder division by zero",
\\comptime {
\\ const a: i32 = 1;
\\ const b: i32 = 0;
\\ const c = a % b;
\\}
,
".tmp_source.zig:4:17: error: division by zero is undefined");
cases.add("compile-time integer cast truncates bits",
\\comptime {
\\ const spartan_count: u16 = 300;
\\ const byte = u8(spartan_count);
\\}
,
".tmp_source.zig:3:20: error: cast from 'u16' to 'u8' truncates bits");
cases.add("@setDebugSafety twice for same scope",
\\export fn foo() {
\\ @setDebugSafety(this, false);
\\ @setDebugSafety(this, false);
\\}
,
".tmp_source.zig:3:5: error: debug safety set twice for same scope",
".tmp_source.zig:2:5: note: first set here");
cases.add("@setFloatMode twice for same scope",
\\export fn foo() {
\\ @setFloatMode(this, @import("builtin").FloatMode.Optimized);
\\ @setFloatMode(this, @import("builtin").FloatMode.Optimized);
\\}
,
".tmp_source.zig:3:5: error: float mode set twice for same scope",
".tmp_source.zig:2:5: note: first set here");
cases.add("array access of type",
\\export fn foo() {
\\ var b: u8[40] = undefined;
\\}
,
".tmp_source.zig:2:14: error: array access of non-array type 'type'");
cases.add("cannot break out of defer expression",
\\export fn foo() {
\\ while (true) {
\\ defer {
\\ break;
\\ }
\\ }
\\}
,
".tmp_source.zig:4:13: error: cannot break out of defer expression");
cases.add("cannot continue out of defer expression",
\\export fn foo() {
\\ while (true) {
\\ defer {
\\ continue;
\\ }
\\ }
\\}
,
".tmp_source.zig:4:13: error: cannot continue out of defer expression");
}