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Zcu: fix switch prong source location resolution

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Resolves: #22343
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mlugg 2025-01-22 02:22:39 +00:00
parent 6e7ae66871
commit 8470b6ea37
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GPG key ID: 3F5B7DCCBF4AF02E
2 changed files with 49 additions and 2 deletions
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5
src/Zcu.zig
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@ -1864,15 +1864,16 @@ pub const SrcLoc = struct {
if (want_case_idx.isSpecial()) {
break case;
}
continue;
}
const is_multi = case.ast.values.len != 1 or
node_tags[case.ast.values[0]] == .switch_range;
if (!want_case_idx.isSpecial()) switch (want_case_idx.kind) {
switch (want_case_idx.kind) {
.scalar => if (!is_multi and want_case_idx.index == scalar_i) break case,
.multi => if (is_multi and want_case_idx.index == multi_i) break case,
};
}
if (is_multi) {
multi_i += 1;

46
test/cases/compile_errors/invalid_switch_item.zig Normal file
View file

@ -0,0 +1,46 @@
const E = enum { a, b, c };
var my_e: E = .a;
export fn f0() void {
switch (my_e) {
.a => {},
.b => {},
.x => {},
.c => {},
}
}
export fn f1() void {
switch (my_e) {
else => {},
.x, .y => {},
}
}
export fn f2() void {
switch (my_e) {
else => {},
.a => {},
.x, .y => {},
.b => {},
}
}
export fn f3() void {
switch (my_e) {
.a, .b => {},
.x, .y => {},
else => {},
}
}
// error
//
// :8:10: error: no field named 'x' in enum 'tmp.E'
// :1:11: note: enum declared here
// :16:10: error: no field named 'x' in enum 'tmp.E'
// :1:11: note: enum declared here
// :24:10: error: no field named 'x' in enum 'tmp.E'
// :1:11: note: enum declared here
// :32:10: error: no field named 'x' in enum 'tmp.E'
// :1:11: note: enum declared here