translator: explicitly specify underlying types for enums

src/compiler/translator/ExtensionBehavior.h

@@ -9,12 +9,13 @@
 #ifndef COMPILER_TRANSLATOR_EXTENSIONBEHAVIOR_H_
 #define COMPILER_TRANSLATOR_EXTENSIONBEHAVIOR_H_
 
+#include <cstdint>
 #include <map>
 
 namespace sh
 {
 
-enum class TExtension
+enum class TExtension : uint8_t
 {
     UNDEFINED,  // Special value used to indicate no extension.
 
@@ -46,7 +47,7 @@ enum class TExtension
     APPLE_clip_distance,
 };
 
-enum TBehavior
+enum TBehavior : uint8_t
 {
     EBhRequire,
     EBhEnable,

src/compiler/translator/Operator.h

@@ -7,10 +7,12 @@
 #ifndef COMPILER_TRANSLATOR_OPERATOR_H_
 #define COMPILER_TRANSLATOR_OPERATOR_H_
 
+#include <cstdint>
+
 //
 // Operators used by the high-level (parse tree) representation.
 //
-enum TOperator
+enum TOperator : uint8_t
 {
     EOpNull,  // if in a node, should only mean a node is still being built
 

src/compiler/translator/SymbolTable.h

@@ -42,7 +42,7 @@
 #include "compiler/translator/Symbol.h"
 #include "compiler/translator/SymbolTable_autogen.h"
 
-enum class Shader
+enum class Shader : uint8_t
 {
     ALL,
     FRAGMENT,      // GL_FRAGMENT_SHADER
@@ -66,7 +66,7 @@ struct UnmangledBuiltIn
 using VarPointer        = TSymbol *(TSymbolTableBase::*);
 using ValidateExtension = int ShBuiltInResources::*;
 
-enum class Spec
+enum class Spec : uint8_t
 {
     GLSL,
     ESSL

src/compiler/translator/SymbolUniqueId.h

@@ -37,7 +37,7 @@ class TSymbolUniqueId
     int mId;
 };
 
-enum class SymbolType
+enum class SymbolType : uint8_t
 {
     BuiltIn,
     UserDefined,
@@ -45,7 +45,7 @@ enum class SymbolType
     Empty  // Meaning symbol without a name.
 };
 
-enum class SymbolClass
+enum class SymbolClass : uint8_t
 {
     Function,
     Variable,