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fix assertion error, trying to dereference to array

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thanks to hoppetosse on IRC for reporting the issue
This commit is contained in:
Andrew Kelley 2017-03-07 19:08:02 -05:00
parent eb9f1e2d53
commit ddd9624e2d
2 changed files with 15 additions and 1 deletions
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7
src/ir.cpp
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@ -9399,7 +9399,12 @@ static TypeTableEntry *ir_analyze_instruction_store_ptr(IrAnalyze *ira, IrInstru
if (type_is_invalid(value->value.type))
return value->value.type;
assert(ptr->value.type->id == TypeTableEntryIdPointer);
if (ptr->value.type->id != TypeTableEntryIdPointer) {
ir_add_error(ira, ptr,
buf_sprintf("attempt to dereference non pointer type '%s'", buf_ptr(&ptr->value.type->name)));
return ira->codegen->builtin_types.entry_invalid;
}
if (ptr->value.data.x_ptr.special == ConstPtrSpecialDiscard) {
return ir_analyze_void(ira, &store_ptr_instruction->base);
}

9
test/run_tests.cpp
View File

@ -1704,6 +1704,15 @@ fn foo() {
while (i < 10; i += 1) { }
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: unable to infer variable type");
add_compile_fail_case("dereference an array", R"SOURCE(
var s_buffer: [10]u8 = undefined;
pub fn pass(in: []u8) -> []u8 {
var out = &s_buffer;
*out[0] = in[0];
return (*out)[0...1];
}
)SOURCE", 1, ".tmp_source.zig:5:5: error: attempt to dereference non pointer type '[10]u8'");
}
//////////////////////////////////////////////////////////////////////////////