df267d77f6
This introduces a new diagnostic group to diagnose implicit casts from int to an enumeration type. In C, this is valid, but it is not compatible with C++. Additionally, this moves the "implicit conversion from enum type to different enum type" diagnostic from `-Wenum-conversion` to a new group `-Wimplicit-enum-enum-cast`, which is a more accurate home for it. `-Wimplicit-enum-enum-cast` is also under `-Wimplicit-int-enum-cast`, as it is the same incompatibility (the enumeration on the right-hand is promoted to `int`, so it's an int -> enum conversion). Fixes #37027
46 lines
2.4 KiB
C
46 lines
2.4 KiB
C
// RUN: diagtool show-enabled %s | FileCheck %s
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//
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// This shows warnings which are on by default.
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// We just check a few to make sure it's doing something sensible.
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//
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// CHECK: ext_unterminated_char_or_string
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// CHECK: warn_condition_is_assignment
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// CHECK: warn_null_arg
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// RUN: diagtool show-enabled -Wno-everything -Rno-everything %s | count 0
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// RUN: diagtool show-enabled -Wno-everything -Wobjc-root-class %s | FileCheck -check-prefix CHECK-WARN %s
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// RUN: diagtool show-enabled -Wno-everything -Werror=objc-root-class %s | FileCheck -check-prefix CHECK-ERROR %s
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// RUN: diagtool show-enabled -Wno-everything -Wfatal-errors=objc-root-class %s | FileCheck -check-prefix CHECK-FATAL %s
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//
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// CHECK-WARN: W warn_objc_root_class_missing [-Wobjc-root-class]
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// CHECK-ERROR: E warn_objc_root_class_missing [-Wobjc-root-class]
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// CHECK-FATAL: F warn_objc_root_class_missing [-Wobjc-root-class]
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// RUN: diagtool show-enabled --no-levels -Wno-everything -Wobjc-root-class %s | FileCheck -check-prefix CHECK-NO-LEVELS %s
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//
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// CHECK-NO-LEVELS-NOT: {{^W }}
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// CHECK-NO-LEVELS-NOT: {{^E }}
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// CHECK-NO-LEVELS-NOT: {{^F }}
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// CHECK-NO-LEVELS: warn_objc_root_class_missing [-Wobjc-root-class]
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// Test if EnumConversion is a subgroup of -Wconversion. Because no diagnostics
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// are grouped directly under -Wenum-conversion, we check for
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// -Wimplicit-enum-enum-cast instead (which is itself under -Wenum-conversion).
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// RUN: diagtool show-enabled --no-levels -Wno-conversion -Wenum-conversion %s | FileCheck --check-prefix CHECK-ENUM-CONVERSION %s
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// RUN: diagtool show-enabled --no-levels %s | FileCheck --check-prefix CHECK-ENUM-CONVERSION %s
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// RUN: diagtool show-enabled --no-levels -Wno-conversion %s | FileCheck --check-prefix CHECK-NO-ENUM-CONVERSION %s
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//
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// CHECK-ENUM-CONVERSION: -Wimplicit-enum-enum-cast
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// CHECK-NO-ENUM-CONVERSION-NOT: -Wimplicit-enum-enum-cast
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// Test if -Wshift-op-parentheses is a subgroup of -Wparentheses
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// RUN: diagtool show-enabled --no-levels -Wno-parentheses -Wshift-op-parentheses %s | FileCheck --check-prefix CHECK-SHIFT-OP-PARENTHESES %s
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// RUN: diagtool show-enabled --no-levels %s | FileCheck --check-prefix CHECK-SHIFT-OP-PARENTHESES %s
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// RUN: diagtool show-enabled --no-levels -Wno-parentheses %s | FileCheck --check-prefix CHECK-NO-SHIFT-OP-PARENTHESES %s
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//
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// CHECK-SHIFT-OP-PARENTHESES: -Wshift-op-parentheses
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// CHECK-NO-SHIFT-OP-PARENTHESES-NOT: -Wshift-op-parentheses
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