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llvm-project/mlir/test/mlir-tblgen/constant-str-attr-invalid.mlir

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[MLIR][ODS] default-valued strings should be in quotes `DefaultValuedAttr<StrAttr, "">` and `ConstantAttr<StrAttr, "">` result in bugs in which TableGen will not recognize that the attribute has a default value, because `""` is an empty TableGen string. Strings no longer have special treatment. Instead, string values must be wrapped in quotes: "\"foo\"". Two helpers, `DefaultValuedStrAttr` and `ConstantStrAttr` have been added to keep code clean. Reviewed By: rriddle Differential Revision: https://reviews.llvm.org/D111855
2021-10-15 08:00:54 +08:00
// RUN: mlir-opt -verify-diagnostics %s
// Test DefaultValuedAttr<StrAttr, ""> is recognized as "no default value"
test.no_str_value {} // expected-error {{'test.no_str_value' op requires attribute 'value'}}