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Add comments, factor out common code

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4851 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-12-02 16:57:01 +00:00
parent 34a7769b0b
commit f1e37d9d03
2 changed files with 44 additions and 20 deletions
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32
support/tools/TableGen/Record.h
View File

@ -141,11 +141,27 @@ public:
struct Init {
virtual ~Init() {}
virtual bool isComplete() const = 0;
/// isComplete - This virtual method should be overridden by values that may
/// not be completely specified yet.
virtual bool isComplete() const { return true; }
/// print - Print out this value.
virtual void print(std::ostream &OS) const = 0;
/// dump - Debugging method that may be called through a debugger, just
/// invokes print on cerr.
void dump() const;
/// convertInitializerTo - This virtual function is a simple call-back
/// function that should be overridden to call the appropriate
/// RecTy::convertValue method.
///
virtual Init *convertInitializerTo(RecTy *Ty) = 0;
/// convertInitializerBitRange - This method is used to implement the bitrange
/// selection operator. Given an initializer, it selects the specified bits
/// out, returning them as a new init of bits type.
///
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits) {
return 0;
}
@ -156,6 +172,11 @@ struct Init {
///
virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
/// resolveReferences - This method is used by classes that refer to other
/// variables which may not be defined at the time they expression is formed.
/// If a value is set for the variable later, this method will be called on
/// users of the value to allow the value to propagate out.
///
virtual Init *resolveReferences(Record &R) { return this; }
};
@ -189,7 +210,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << (Value ? "1" : "0"); }
};
@ -248,7 +268,6 @@ public:
}
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << Value; }
};
@ -264,7 +283,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << "\"" << Value << "\""; }
};
@ -287,7 +305,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const;
};
@ -310,7 +327,6 @@ public:
virtual RecTy *getFieldType(const std::string &FieldName) const;
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << VarName; }
};
@ -330,7 +346,6 @@ public:
VarInit *getVariable() const { return VI; }
unsigned getBitNum() const { return Bit; }
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const {
VI->print(OS); OS << "{" << Bit << "}";
}
@ -353,7 +368,6 @@ public:
//virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const;
};
@ -374,7 +388,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const {
Rec->print(OS); OS << "." << FieldName;
}
@ -392,7 +405,6 @@ class RecordVal {
Init *Value;
public:
RecordVal(const std::string &N, RecTy *T, unsigned P);
~RecordVal() { /*delete Ty; delete Value; Bad for copy ctor!*/ }
const std::string &getName() const { return Name; }

32
utils/TableGen/Record.h
View File

@ -141,11 +141,27 @@ public:
struct Init {
virtual ~Init() {}
virtual bool isComplete() const = 0;
/// isComplete - This virtual method should be overridden by values that may
/// not be completely specified yet.
virtual bool isComplete() const { return true; }
/// print - Print out this value.
virtual void print(std::ostream &OS) const = 0;
/// dump - Debugging method that may be called through a debugger, just
/// invokes print on cerr.
void dump() const;
/// convertInitializerTo - This virtual function is a simple call-back
/// function that should be overridden to call the appropriate
/// RecTy::convertValue method.
///
virtual Init *convertInitializerTo(RecTy *Ty) = 0;
/// convertInitializerBitRange - This method is used to implement the bitrange
/// selection operator. Given an initializer, it selects the specified bits
/// out, returning them as a new init of bits type.
///
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits) {
return 0;
}
@ -156,6 +172,11 @@ struct Init {
///
virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
/// resolveReferences - This method is used by classes that refer to other
/// variables which may not be defined at the time they expression is formed.
/// If a value is set for the variable later, this method will be called on
/// users of the value to allow the value to propagate out.
///
virtual Init *resolveReferences(Record &R) { return this; }
};
@ -189,7 +210,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << (Value ? "1" : "0"); }
};
@ -248,7 +268,6 @@ public:
}
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << Value; }
};
@ -264,7 +283,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << "\"" << Value << "\""; }
};
@ -287,7 +305,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const;
};
@ -310,7 +327,6 @@ public:
virtual RecTy *getFieldType(const std::string &FieldName) const;
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << VarName; }
};
@ -330,7 +346,6 @@ public:
VarInit *getVariable() const { return VI; }
unsigned getBitNum() const { return Bit; }
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const {
VI->print(OS); OS << "{" << Bit << "}";
}
@ -353,7 +368,6 @@ public:
//virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const;
};
@ -374,7 +388,6 @@ public:
return Ty->convertValue(this);
}
virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const {
Rec->print(OS); OS << "." << FieldName;
}
@ -392,7 +405,6 @@ class RecordVal {
Init *Value;
public:
RecordVal(const std::string &N, RecTy *T, unsigned P);
~RecordVal() { /*delete Ty; delete Value; Bad for copy ctor!*/ }
const std::string &getName() const { return Name; }