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feat: update flag enum and enum underlying type decision rules for codegen

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yyc12345
2026-02-11 22:49:54 +08:00
parent 3310cac100
commit 4619cb5d1a
10 changed files with 211 additions and 64 deletions
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84
Assets/CodeGen/EnumsMigration/EnumsAnalyzer/EnumsWalker.java
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@@ -59,6 +59,8 @@ public class EnumsWalker extends CKEnumsParserBaseListener {
List<TerminalNode> allNames = ctx.CKGENERIC_ID();
mCurrentEnum.mEnumName = allNames.get(allNames.size() - 1).getText();
// update self and add into list
mCurrentEnum.updateByEntries();
mCurrentProg.mEnums.add(mCurrentEnum);
mCurrentEnum = null;
}
@@ -75,6 +77,14 @@ public class EnumsWalker extends CKEnumsParserBaseListener {
// get entry name
mCurrentEntry.mEntryName = ctx.CKGENERIC_ID().getText();
// if its value is null, we manually fill 2 kinds
if (mCurrentEntry.mEntryValue == null) {
// the sign kind is unknown because it relys on other value (+1)
mCurrentEntry.mEntrySignKind = EnumsHelper.BEnumEntrySignKind.Unknown;
// because it just adds one from previous member, it should not belong to a flag enum
mCurrentEntry.mEntryFlagKind = EnumsHelper.BEnumEntryFlagKind.NotFlag;
}
mCurrentEnum.mEntries.add(mCurrentEntry);
mCurrentEntry = null;
}
@@ -85,34 +95,42 @@ public class EnumsWalker extends CKEnumsParserBaseListener {
List<TerminalNode> nums = ctx.CKGENERIC_NUM();
switch (nums.size()) {
case 1: {
// set value
TerminalNode node = nums.get(0);
mCurrentEntry.mEntryValue = node.getText();
case 1: {
// value is immediate number
TerminalNode node = nums.get(0);
String num = node.getText();
mCurrentEntry.mEntryValue = num;
// check whether this enum can be unsigned
if (CommonHelper.isNegativeNumber(node.getText())) {
mCurrentEnum.mCanUnsigned = false;
// check whether this enum can be unsigned
if (CommonHelper.isNegativeNumber(num)) {
mCurrentEntry.mEntrySignKind = EnumsHelper.BEnumEntrySignKind.Negative;
} else {
mCurrentEntry.mEntrySignKind = EnumsHelper.BEnumEntrySignKind.Positive;
}
// if the number is in hex form, this entry may belong to flag enum
if (CommonHelper.isHexNumber(num)) {
mCurrentEntry.mEntryFlagKind = EnumsHelper.BEnumEntryFlagKind.MayFlag;
} else {
mCurrentEntry.mEntryFlagKind = EnumsHelper.BEnumEntryFlagKind.NotFlag;
}
break;
}
// if the number is in hex form, this enum MIGHT have flags feature
if (CommonHelper.isHexNumber(node.getText())) {
mCurrentEnum.mUseFlags = true;
case 2: {
// value is bitwise operation
TerminalNode num = nums.get(0), offset = nums.get(1);
mCurrentEntry.mEntryValue = String.format("%s << %s", num.getText(), offset.getText());
// << operator appears.
// it shoud be unsigned.
mCurrentEntry.mEntrySignKind = EnumsHelper.BEnumEntrySignKind.Positive;
// and it must belong to flag enum
mCurrentEntry.mEntryFlagKind = EnumsHelper.BEnumEntryFlagKind.MustFlag;
break;
}
break;
}
case 2: {
// set value
TerminalNode num = nums.get(0), offset = nums.get(1);
mCurrentEntry.mEntryValue = String.format("%s << %s", num.getText(), offset.getText());
// << operator appears. this enum must have flags feature
mCurrentEnum.mUseFlags = true;
break;
}
default:
throw new IllegalArgumentException("Unexpected value: " + nums.size());
default:
throw new IllegalArgumentException("Unexpected value: " + nums.size());
}
}
@@ -123,9 +141,19 @@ public class EnumsWalker extends CKEnumsParserBaseListener {
mCurrentEntry.mEntryValue = ctx.CKGENERIC_ID().stream().map(value -> value.getText())
.collect(Collectors.joining(" | "));
// | operator appears. this enum must have flags feature
mCurrentEnum.mUseFlags = true;
if (ctx.CKGENERIC_ID().size() > 1) {
// If there is more than one ID, it means | operator appears.
// It should be unsigned.
mCurrentEntry.mEntrySignKind = EnumsHelper.BEnumEntrySignKind.Positive;
// And it must belong to flag enum.
mCurrentEntry.mEntryFlagKind = EnumsHelper.BEnumEntryFlagKind.MustFlag;
} else {
// Otherwise it just refer other member.
// The sign of its value is unclear.
mCurrentEntry.mEntrySignKind = EnumsHelper.BEnumEntrySignKind.Unknown;
// And it may belong to flag enum because it refers other memeber.
mCurrentEntry.mEntryFlagKind = EnumsHelper.BEnumEntryFlagKind.MayFlag;
}
}
}