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-rw-r--r--test/compile_errors.zig1812
1 files changed, 1812 insertions, 0 deletions
diff --git a/test/compile_errors.zig b/test/compile_errors.zig
new file mode 100644
index 0000000000..199d60b184
--- /dev/null
+++ b/test/compile_errors.zig
@@ -0,0 +1,1812 @@
+const std = @import("std");
+const debug = std.debug;
+const build = std.build;
+const os = std.os;
+const StdIo = os.ChildProcess.StdIo;
+const Term = os.ChildProcess.Term;
+const Buffer0 = std.cstr.Buffer0;
+const io = std.io;
+const mem = std.mem;
+const fmt = std.fmt;
+const List = std.list.List;
+
+error TestFailed;
+
+pub fn addCompileErrorTests(b: &build.Builder, test_filter: ?[]const u8) -> &build.Step {
+ const cases = %%b.allocator.create(CompileErrorContext);
+ *cases = CompileErrorContext {
+ .b = b,
+ .step = b.step("test-compile-errors", "Run the compile error tests"),
+ .test_index = 0,
+ .test_filter = test_filter,
+ };
+
+ 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 - if(var) 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 - if(var) 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 - if(var)-else statement",
+ \\export fn entry() {
+ \\ if(_=foo()) {} else {}
+ \\ var good = {};
+ \\ if(_=foo()) ({}) else ({})
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - if(var)-else expression",
+ \\export fn entry() {
+ \\ _ = if(_=foo()) {} else {};
+ \\ var good = {};
+ \\ _ = if(_=foo()) {} else {}
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - if(var)-else-if(var) statement",
+ \\export fn entry() {
+ \\ if(_=foo()) {} else if(_=foo()) {}
+ \\ var good = {};
+ \\ if(_=foo()) ({}) else if(_=foo()) ({})
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - if(var)-else-if(var) expression",
+ \\export fn entry() {
+ \\ _ = if(_=foo()) {} else if(_=foo()) {};
+ \\ var good = {};
+ \\ _ = if(_=foo()) {} else if(_=foo()) {}
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - if(var)-else-if(var)-else statement",
+ \\export fn entry() {
+ \\ if(_=foo()) {} else if(_=foo()) {} else {}
+ \\ var good = {};
+ \\ if(_=foo()) ({}) else if(_=foo()) ({}) else ({})
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - if(var)-else-if(var)-else expression",
+ \\export fn entry() {
+ \\ _ = if(_=foo()) {} else if(_=foo()) {} else {};
+ \\ var good = {};
+ \\ _ = if(_=foo()) {} else if(_=foo()) {} else {}
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - try statement",
+ \\export fn entry() {
+ \\ try (_ = foo()) {}
+ \\ var good = {};
+ \\ try (_ = foo()) ({})
+ \\ var bad = {};
+ \\}
+ , ".tmp_source.zig:5:5: error: invalid token: 'var'");
+
+ cases.add("implicit semicolon - try expression",
+ \\export fn entry() {
+ \\ _ = try (_ = foo()) {};
+ \\ var good = {};
+ \\ _ = try (_ = 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:3:6: 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 (const x ?= true) { }
+ \\}
+ , ".tmp_source.zig:2:20: 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("multiple else prongs in a switch",
+ \\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("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 = @compileVar("bogus");
+ \\export fn entry() -> usize { @sizeOf(@typeOf(x)) }
+ , ".tmp_source.zig:1:23: error: unrecognized compile variable: 'bogus'");
+
+
+ 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 = i32(1) / i32(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("missing switch 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("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: i32) -> i32 {
+ \\ 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",
+ \\export fn f() {
+ \\ var x: i32 = 1234;
+ \\ while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Monotonic, AtomicOrder.SeqCst)) {}
+ \\}
+ , ".tmp_source.zig:3:72: error: failure atomic ordering must be no stricter than success");
+
+ cases.add("atomic orderings of cmpxchg - success Monotonic or stricter",
+ \\export fn f() {
+ \\ var x: i32 = 1234;
+ \\ while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Unordered, AtomicOrder.Unordered)) {}
+ \\}
+ , ".tmp_source.zig:3:49: 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 = {
+ \\ @setGlobalAlign(some_data, 3);
+ \\ undefined
+ \\};
+ \\export fn entry() -> usize { @sizeOf(@typeOf(some_data)) }
+ , ".tmp_source.zig:2:32: 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:3:21: 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: return value 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",
+ \\export fn entry() {
+ \\ const foo = Arch.x86;
+ \\}
+ , ".tmp_source.zig:2:21: 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.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");
+
+
+
+
+ return cases.step;
+}
+
+const CompileErrorContext = struct {
+ b: &build.Builder,
+ step: &build.Step,
+ test_index: usize,
+ test_filter: ?[]const u8,
+
+ const TestCase = struct {
+ name: []const u8,
+ sources: List(SourceFile),
+ expected_errors: List([]const u8),
+ link_libc: bool,
+ is_exe: bool,
+
+ const SourceFile = struct {
+ filename: []const u8,
+ source: []const u8,
+ };
+
+ pub fn addSourceFile(self: &TestCase, filename: []const u8, source: []const u8) {
+ %%self.sources.append(SourceFile {
+ .filename = filename,
+ .source = source,
+ });
+ }
+
+ pub fn addExpectedError(self: &TestCase, text: []const u8) {
+ %%self.expected_errors.append(text);
+ }
+ };
+
+ const CompileCmpOutputStep = struct {
+ step: build.Step,
+ context: &CompileErrorContext,
+ name: []const u8,
+ test_index: usize,
+ case: &const TestCase,
+ release: bool,
+
+ pub fn create(context: &CompileErrorContext, name: []const u8,
+ case: &const TestCase, release: bool) -> &CompileCmpOutputStep
+ {
+ const allocator = context.b.allocator;
+ const ptr = %%allocator.create(CompileCmpOutputStep);
+ *ptr = CompileCmpOutputStep {
+ .step = build.Step.init("CompileCmpOutput", allocator, make),
+ .context = context,
+ .name = name,
+ .test_index = context.test_index,
+ .case = case,
+ .release = release,
+ };
+ context.test_index += 1;
+ return ptr;
+ }
+
+ fn make(step: &build.Step) -> %void {
+ const self = @fieldParentPtr(CompileCmpOutputStep, "step", step);
+ const b = self.context.b;
+
+ const root_src = %%os.path.join(b.allocator, "test_artifacts", self.case.sources.items[0].filename);
+ const obj_path = %%os.path.join(b.allocator, "test_artifacts", "test.o");
+
+ var zig_args = List([]const u8).init(b.allocator);
+ %%zig_args.append(if (self.case.is_exe) "build_exe" else "build_obj");
+ %%zig_args.append(b.pathFromRoot(root_src));
+
+ %%zig_args.append("--name");
+ %%zig_args.append("test");
+
+ %%zig_args.append("--output");
+ %%zig_args.append(b.pathFromRoot(obj_path));
+
+ if (self.release) {
+ %%zig_args.append("--release");
+ }
+
+ %%io.stderr.printf("Test {}/{} {}...", self.test_index+1, self.context.test_index, self.name);
+
+ if (b.verbose) {
+ printInvocation(b.zig_exe, zig_args.toSliceConst());
+ }
+
+ var child = os.ChildProcess.spawn(b.zig_exe, zig_args.toSliceConst(), &b.env_map,
+ StdIo.Ignore, StdIo.Pipe, StdIo.Pipe, b.allocator) %% |err|
+ {
+ debug.panic("Unable to spawn {}: {}\n", b.zig_exe, @errorName(err));
+ };
+
+ const term = child.wait() %% |err| {
+ debug.panic("Unable to spawn {}: {}\n", b.zig_exe, @errorName(err));
+ };
+ switch (term) {
+ Term.Clean => |code| {
+ if (code == 0) {
+ %%io.stderr.printf("Compilation incorrectly succeeded\n");
+ return error.TestFailed;
+ }
+ },
+ else => {
+ %%io.stderr.printf("Process {} terminated unexpectedly\n", b.zig_exe);
+ return error.TestFailed;
+ },
+ };
+
+ var stdout_buf = %%Buffer0.initEmpty(b.allocator);
+ var stderr_buf = %%Buffer0.initEmpty(b.allocator);
+
+ %%(??child.stdout).readAll(&stdout_buf);
+ %%(??child.stderr).readAll(&stderr_buf);
+
+ const stdout = stdout_buf.toSliceConst();
+ const stderr = stderr_buf.toSliceConst();
+
+ if (stdout.len != 0) {
+ %%io.stderr.printf(
+ \\
+ \\Expected empty stdout, instead found:
+ \\================================================
+ \\{}
+ \\================================================
+ \\
+ , stdout);
+ return error.TestFailed;
+ }
+
+ for (self.case.expected_errors.toSliceConst()) |expected_error| {
+ if (mem.indexOf(u8, stderr, expected_error) == null) {
+ %%io.stderr.printf(
+ \\
+ \\========= Expected this compile error: =========
+ \\{}
+ \\================================================
+ \\{}
+ \\
+ , expected_error, stderr);
+ return error.TestFailed;
+ }
+ }
+ %%io.stderr.printf("OK\n");
+ }
+ };
+
+ fn printInvocation(exe_path: []const u8, args: []const []const u8) {
+ %%io.stderr.printf("{}", exe_path);
+ for (args) |arg| {
+ %%io.stderr.printf(" {}", arg);
+ }
+ %%io.stderr.printf("\n");
+ }
+
+ pub fn create(self: &CompileErrorContext, name: []const u8, source: []const u8,
+ expected_lines: ...) -> &TestCase
+ {
+ const tc = %%self.b.allocator.create(TestCase);
+ *tc = TestCase {
+ .name = name,
+ .sources = List(TestCase.SourceFile).init(self.b.allocator),
+ .expected_errors = List([]const u8).init(self.b.allocator),
+ .link_libc = false,
+ .is_exe = false,
+ };
+ tc.addSourceFile(".tmp_source.zig", source);
+ comptime var arg_i = 0;
+ inline while (arg_i < expected_lines.len; arg_i += 1) {
+ // TODO mem.dupe is because of issue #336
+ tc.addExpectedError(%%mem.dupe(self.b.allocator, u8, expected_lines[arg_i]));
+ }
+ return tc;
+ }
+
+ pub fn addC(self: &CompileErrorContext, name: []const u8, source: []const u8, expected_lines: ...) {
+ var tc = self.create(name, source, expected_lines);
+ tc.link_libc = true;
+ self.addCase(tc);
+ }
+
+ pub fn addExe(self: &CompileErrorContext, name: []const u8, source: []const u8, expected_lines: ...) {
+ var tc = self.create(name, source, expected_lines);
+ tc.is_exe = true;
+ self.addCase(tc);
+ }
+
+ pub fn add(self: &CompileErrorContext, name: []const u8, source: []const u8, expected_lines: ...) {
+ const tc = self.create(name, source, expected_lines);
+ self.addCase(tc);
+ }
+
+ pub fn addCase(self: &CompileErrorContext, case: &const TestCase) {
+ const b = self.b;
+
+ for ([]bool{false, true}) |release| {
+ const annotated_case_name = %%fmt.allocPrint(self.b.allocator, "{} ({})",
+ case.name, if (release) "release" else "debug");
+ if (const filter ?= self.test_filter) {
+ if (mem.indexOf(u8, annotated_case_name, filter) == null)
+ continue;
+ }
+
+ const compile_and_cmp_errors = CompileCmpOutputStep.create(self, annotated_case_name, case, release);
+ self.step.dependOn(&compile_and_cmp_errors.step);
+
+ for (case.sources.toSliceConst()) |src_file| {
+ const expanded_src_path = %%os.path.join(b.allocator, "test_artifacts", src_file.filename);
+ const write_src = b.addWriteFile(expanded_src_path, src_file.source);
+ compile_and_cmp_errors.step.dependOn(&write_src.step);
+ }
+ }
+ }
+};
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-28 18:06:56 +0000