Fixed false signature change with multiple extensions

BeefySysLib/util/String.cpp

@@ -67,6 +67,24 @@ bool StringView::operator!=(const StringImpl& strB) const
 	return strncmp(this->mPtr, strB.GetPtr(), this->mLength) != 0;
 }
 
+bool StringView::StartsWith(const StringView& b, StringView::CompareKind comparisonType) const
+{
+	if (this->mLength < b.mLength)
+		return false;
+	if (comparisonType == String::CompareKind_OrdinalIgnoreCase)
+		return String::EqualsIgnoreCaseHelper(mPtr, b.mPtr, b.mLength);
+	return String::EqualsHelper(mPtr, b.mPtr, b.mLength);
+}
+
+bool StringView::EndsWith(const StringView& b, StringView::CompareKind comparisonType) const
+{
+	if (this->mLength < b.mLength)
+		return false;
+	if (comparisonType == String::CompareKind_OrdinalIgnoreCase)
+		return String::EqualsIgnoreCaseHelper(this->mPtr + this->mLength - b.mLength, b.mPtr, b.mLength);
+	return String::EqualsHelper(this->mPtr + this->mLength - b.mLength, b.mPtr, b.mLength);
+}
+
 intptr StringView::IndexOf(const StringView& subStr, bool ignoreCase) const
 {
 	for (intptr ofs = 0; ofs <= mLength - subStr.mLength; ofs++)

BeefySysLib/util/String.h

@@ -16,6 +16,17 @@ struct StringSplitEnumerator;
 
 class StringView
 {
+public:
+	enum CompareKind
+	{
+		CompareKind_CurrentCulture = 0,
+		CompareKind_CurrentCultureIgnoreCase = 1,
+		CompareKind_InvariantCulture = 2,
+		CompareKind_InvariantCultureIgnoreCase = 3,
+		CompareKind_Ordinal = 4,
+		CompareKind_OrdinalIgnoreCase = 5,
+	};
+
 public:
 	const char* mPtr;
 	intptr mLength;
@@ -253,6 +264,23 @@ public:
 		return mLength;
 	}
 
+	bool StartsWith(const StringView& b, CompareKind comparisonType = CompareKind_Ordinal) const;
+	bool EndsWith(const StringView& b, CompareKind comparisonType = CompareKind_Ordinal) const;
+
+	bool StartsWith(char c) const
+	{
+		if (this->mLength == 0)
+			return false;
+		return this->mPtr[0] == c;
+	}
+
+	bool EndsWith(char c) const
+	{
+		if (this->mLength == 0)
+			return false;
+		return this->mPtr[this->mLength - 1] == c;
+	}
+
 	intptr IndexOf(const StringView& subStr, bool ignoreCase = false) const;
 	intptr IndexOf(const StringView& subStr, int32 startIdx) const;
 	intptr IndexOf(const StringView& subStr, int64 startIdx) const;
@@ -488,6 +516,8 @@ public:
 		CompareKind_OrdinalIgnoreCase = 5,
 	};
 
+	friend class StringView;
+
 public:
 	typedef int int_strsize;
 

IDEHelper/Compiler/BfAst.cpp

@@ -1006,6 +1006,15 @@ bool BfAstNode::Equals(const StringImpl& str)
 	return strncmp(str.GetPtr(), source->mSrc + mSrcStart, len) == 0;
 }
 
+bool BfAstNode::Equals(const StringView& str)
+{
+	int len = mSrcEnd - mSrcStart;
+	if (len != str.mLength)
+		return false;
+	auto source = GetSourceData();
+	return strncmp(str.mPtr, source->mSrc + mSrcStart, len) == 0;
+}
+
 bool BfAstNode::Equals(const char* str)
 {	
 	auto source = GetSourceData();

IDEHelper/Compiler/BfAst.h

@@ -1090,6 +1090,7 @@ public:
 	StringView ToStringView();
 	void ToString(StringImpl& str);
 	bool Equals(const StringImpl& str);
+	bool Equals(const StringView& str);
 	bool Equals(const char* str);
 	void Init(BfParser* bfParser);
 	void Accept(BfStructuralVisitor* bfVisitor);

IDEHelper/Compiler/BfDefBuilder.cpp

@@ -1262,6 +1262,57 @@ void BfDefBuilder::AddParam(BfMethodDef* methodDef, BfTypeReference* typeRef, co
 	methodDef->mParams.push_back(paramDef);
 }
 
+BfTypeDef* BfDefBuilder::ComparePrevTypeDef(BfTypeDef* prevTypeDef, BfTypeDef* checkTypeDef)
+{
+	if (!mCurTypeDef->IsExtension())
+		return prevTypeDef;
+
+	BF_ASSERT(mCurTypeDef->mGenericParamDefs.size() == prevTypeDef->mGenericParamDefs.size());
+	BF_ASSERT(mCurTypeDef->mGenericParamDefs.size() == checkTypeDef->mGenericParamDefs.size());
+
+	bool prevMatches = true;
+	bool checkMatches = true;
+
+	for (int genericParamIdx = 0; genericParamIdx < (int)mCurTypeDef->mGenericParamDefs.size(); genericParamIdx++)
+	{
+		BfGenericParamDef* paramDef = mCurTypeDef->mGenericParamDefs[genericParamIdx];
+		BfGenericParamDef* prevParamDef = prevTypeDef->mGenericParamDefs[genericParamIdx];
+		BfGenericParamDef* checkParamDef = checkTypeDef->mGenericParamDefs[genericParamIdx];
+
+		if (*paramDef != *prevParamDef)
+			prevMatches = false;
+		if (*paramDef != *checkParamDef)
+			checkMatches = false;
+	}
+
+	if (mCurTypeDef->mExternalConstraints.mSize == prevTypeDef->mExternalConstraints.mSize)
+	{
+		for (int constraintIdx = 0; constraintIdx < mCurTypeDef->mExternalConstraints.mSize; constraintIdx++)
+		{
+			if (mCurTypeDef->mExternalConstraints[constraintIdx] != prevTypeDef->mExternalConstraints[constraintIdx])
+				prevMatches = false;
+		}
+	}
+	else
+		prevMatches = false;
+
+	if (mCurTypeDef->mExternalConstraints.mSize == checkTypeDef->mExternalConstraints.mSize)
+	{
+		for (int constraintIdx = 0; constraintIdx < mCurTypeDef->mExternalConstraints.mSize; constraintIdx++)
+		{
+			if (mCurTypeDef->mExternalConstraints[constraintIdx] != checkTypeDef->mExternalConstraints[constraintIdx])
+				checkMatches = false;
+		}
+	}
+	else
+		checkMatches = false;
+
+	if ((!prevMatches) && (checkMatches))
+		return checkTypeDef;
+
+	return prevTypeDef;	
+}
+
 void BfDefBuilder::Visit(BfTypeDeclaration* typeDeclaration)
 {
 	BF_ASSERT(typeDeclaration->GetSourceData() == mCurSource->mSourceData);
@@ -1627,6 +1678,12 @@ void BfDefBuilder::Visit(BfTypeDeclaration* typeDeclaration)
 		}
 	}
 
+	int outerGenericSize = 0;
+	if (mCurTypeDef->mOuterType != NULL)
+		outerGenericSize = (int)mCurTypeDef->mOuterType->mGenericParamDefs.size();
+	bool isGeneric = (outerGenericSize != 0) || (typeDeclaration->mGenericParams != NULL);
+	ParseGenericParams(typeDeclaration->mGenericParams, typeDeclaration->mGenericConstraintsDeclaration, mCurTypeDef->mGenericParamDefs, &mCurTypeDef->mExternalConstraints, outerGenericSize, isGeneric);
+
 	if (!isAutoCompleteTempType)
 	{
 		BfTypeDef* prevDef = NULL;
@@ -1670,6 +1727,12 @@ void BfDefBuilder::Visit(BfTypeDeclaration* typeDeclaration)
 								prevRevisionTypeDef = checkTypeDef;
 								prevDef = checkTypeDef;
 							}
+							else
+							{
+								auto bestTypeDef = ComparePrevTypeDef(prevRevisionTypeDef, checkTypeDef);
+								prevRevisionTypeDef = bestTypeDef;
+								prevDef = bestTypeDef;
+							}
 						}
 					}
 					else
@@ -1732,12 +1795,6 @@ void BfDefBuilder::Visit(BfTypeDeclaration* typeDeclaration)
 	BfLogSysM("Creating TypeDef %p Hash:%d from TypeDecl: %p Source: %p ResolvePass: %d AutoComplete:%d\n", mCurTypeDef, mSystem->mTypeDefs.GetHash(mCurTypeDef), typeDeclaration, 
 		typeDeclaration->GetSourceData(), mResolvePassData != NULL, isAutoCompleteTempType);				
 	
-	int outerGenericSize = 0;
-	if (mCurTypeDef->mOuterType != NULL)
-		outerGenericSize = (int)mCurTypeDef->mOuterType->mGenericParamDefs.size();
-	bool isGeneric = (outerGenericSize != 0) || (typeDeclaration->mGenericParams != NULL);
-	ParseGenericParams(typeDeclaration->mGenericParams, typeDeclaration->mGenericConstraintsDeclaration, mCurTypeDef->mGenericParamDefs, &mCurTypeDef->mExternalConstraints, outerGenericSize, isGeneric);
-	
 	BF_ASSERT(mCurTypeDef->mNameEx == NULL);
 	
 	if (mCurTypeDef->mGenericParamDefs.size() != 0)

IDEHelper/Compiler/BfDefBuilder.h

@@ -37,6 +37,7 @@ public:
 	static BfMethodDef* AddDtor(BfTypeDef* typeDef);
 	static void AddDynamicCastMethods(BfTypeDef* typeDef);
 	void AddParam(BfMethodDef* methodDef, BfTypeReference* typeRef, const StringImpl& paramName);
+	BfTypeDef* ComparePrevTypeDef(BfTypeDef* prevTypeDef, BfTypeDef* checkTypeDef);
 	void FinishTypeDef(bool wantsToString);
 	void ParseAttributes(BfAttributeDirective* attributes, BfMethodDef* methodDef);
 	void ParseAttributes(BfAttributeDirective* attributes, BfTypeDef* typeDef);

IDEHelper/Compiler/BfSystem.h

@@ -628,6 +628,25 @@ public:
 	{
 		mGenericParamFlags = BfGenericParamFlag_None;
 	}
+
+	bool operator==(const BfConstraintDef& other) const
+	{
+		if (mGenericParamFlags != other.mGenericParamFlags)
+			return false;
+		if (mConstraints.mSize != other.mConstraints.mSize)
+			return false;
+		for (int i = 0; i < mConstraints.mSize; i++)
+		{
+			if (!mConstraints[i]->Equals(other.mConstraints[i]->ToStringView()))
+				return false;
+		}
+		return true;
+	}
+
+	bool operator!=(const BfConstraintDef& other) const
+	{
+		return !(*this == other);
+	}
 };
 
 class BfGenericParamDef : public BfConstraintDef
@@ -635,6 +654,18 @@ class BfGenericParamDef : public BfConstraintDef
 public:	
 	String mName;		
 	Array<BfIdentifierNode*> mNameNodes; // 0 is always the def name
+	
+	bool operator==(const BfGenericParamDef& other) const
+	{
+		if (mName != other.mName)
+			return false;
+		return *(BfConstraintDef*)this == *(BfConstraintDef*)&other;
+	}
+
+	bool operator!=(const BfGenericParamDef& other) const
+	{
+		return !(*this == other);
+	}
 };
 
 class BfExternalConstraintDef : public BfConstraintDef