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Refine the check expression result logic.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Gao, Liming <liming,gao@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15476 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Eric Dong
2014-04-18 06:40:13 +00:00
committed by ydong10
parent 7e2f32894b
commit e6106e892d
4 changed files with 59 additions and 12 deletions
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41
MdeModulePkg/Universal/SetupBrowserDxe/Expression.c
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@@ -3280,6 +3280,44 @@ Done:
return Status;
}
/**
Check whether the result is TRUE or FALSE.
For the EFI_HII_VALUE value type is numeric, return TRUE if the
value is not 0.
@param Result Input the result data.
@retval TRUE The result is TRUE.
@retval FALSE The result is FALSE.
**/
BOOLEAN
IsTrue (
IN EFI_HII_VALUE *Result
)
{
switch (Result->Type) {
case EFI_IFR_TYPE_BOOLEAN:
return Result->Value.b;
case EFI_IFR_TYPE_NUM_SIZE_8:
return Result->Value.u8 != 0;
case EFI_IFR_TYPE_NUM_SIZE_16:
return Result->Value.u16 != 0;
case EFI_IFR_TYPE_NUM_SIZE_32:
return Result->Value.u32 != 0;
case EFI_IFR_TYPE_NUM_SIZE_64:
return Result->Value.u64 != 0;
default:
return FALSE;
}
}
/**
Return the result of the expression list. Check the expression list and
return the highest priority express result.
@@ -3331,8 +3369,7 @@ EvaluateExpressionList (
//
ReturnVal = ExpressFalse;
for (Index = 0; Index < ExpList->Count; Index++) {
if (ExpList->Expression[Index]->Result.Type == EFI_IFR_TYPE_BOOLEAN &&
ExpList->Expression[Index]->Result.Value.b) {
if (IsTrue (&ExpList->Expression[Index]->Result)) {
switch (ExpList->Expression[Index]->Type) {
case EFI_HII_EXPRESSION_SUPPRESS_IF:
CompareOne = ExpressSuppress;