public void AddStruct(SymStruct val)
{
RegisterSymbol(val.tokenId, val);
Structs.Add(val);
Domains.Add(val);
domainTypes.Add(val.tokenId);
}
public void AddStruct(SymStruct val)
{
if (CheckSymbol(val))
{
TypeContainer.RegisterType(val);
_curDomain.AddStruct(val);
}
}
void struct_specifier()
{
GetToken();
var tokenId = CurTokenId;
SyntaxState = SNTX_DELAY; // 新取单词不即时输出，延迟到取出单词后根据单词类型判断输出格式
GetToken();
if (CurTokenId == TK_BEGIN) // 适用于结构体定义
{
SyntaxState = SNTX_LF_HT;
}
else if (CurTokenId == TK_CLOSEPA) // 适用于 sizeof(struct struct_name)
{
SyntaxState = SNTX_NUL;
}
else // 适用于结构变量声明
{
SyntaxState = SNTX_SP;
}
SyntaxIndent();
if (tokenId < TK_IDENT) // 关键字不能作为结构名称
{
Error(ETipsType.ExpectStruct);
}
var sym = FindStruct(tokenId);
if (sym == null)
{
// -1表示结构体未定义
sym = new SymStruct();
sym.__name = GetTokenName(tokenId);
sym.align = 0;
sym.tokenId = tokenId;
AddStruct(sym);
}
PushDomain(sym);
CurBuildInTypeId = T_STRUCT;
CurSymbol = sym;
if (CurTokenId == TK_BEGIN)
{
struct_declaration_list(sym);
}
PopDomain();
}
void struct_declaration_list(SymStruct curStruct)
{
SyntaxState = SNTX_LF_HT; // 第一个结构体成员与'{'不写在一行
SyntaxLevel++; // 结构体成员变量声明，缩进增加一级
GetToken();
int maxalign = 1;
int offset = 0;
while (CurTokenId != TK_END)
{
struct_declaration(ref maxalign, ref offset, curStruct);
}
SkipToken(TK_END);
SyntaxState = SNTX_LF_HT;
curStruct.memSize = calc_align(offset, maxalign); //结构体大小
curStruct.align = maxalign; //结构体对齐
}
void struct_declaration(ref int maxalign, ref int offset, SymStruct curStruct)
{
var rawTokenId = CurTokenId;
type_specifier();
while (true)
{
int force_align = 0;
int align = 0;
int tokenId = 0;
var symVar = declarator(ref tokenId, ref force_align) as SymVar;
var size = type_size(ref align);
if ((force_align & ALIGN_SET) != 0)
{
align = force_align & ~ALIGN_SET;
}
offset = calc_align(offset, align);
if (align > maxalign)
{
maxalign = align;
}
symVar.offset = offset;
symVar.tokenId = tokenId;
symVar.Type = FindStruct(rawTokenId);
symVar.__name = GetTokenName(tokenId);
curStruct.AddVariable(symVar);
offset += size;
if (CurTokenId == TK_SEMICOLON || CurTokenId == TK_EOF)
{
break;
}
SkipToken(TK_COMMA);
}
SyntaxState = SNTX_LF_HT;
SkipToken(TK_SEMICOLON);
}
public SymStruct RegisterType(SymStruct type)
{
type.typeId = _curTypeId;
_allTypes.Add(type);
return(type);
}
public TypeRegister(SymDomain globalDomain)
{
TypeStruct = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.TK_SYMSTRUCT, __name = "Struct",
});
TypeVar = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.TK_SYMVAR, __name = "Variable",
});
TypeFunction = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.TK_SYMDOMAIN, __name = "Function",
});
TypeDomain = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.TK_SYMFUNCTION, __name = "Domain ",
});
TypeBool = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_BOOL, __name = "Bool",
});
TypeFloat = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_CHAR, __name = "Float",
});
TypeChar = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_FLOAT, __name = "Char",
});
TypeString = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_STRING, __name = "String",
});
TypeInt8 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_INT8, __name = "Int8",
});
TypeInt16 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_INT16, __name = "Int16",
});
TypeInt32 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_INT32, __name = "Int32",
});
TypeInt64 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_INT64, __name = "Int64",
});
TypeUInt8 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_UINT8, __name = "UInt8",
});
TypeUInt16 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_UINT16, __name = "UInt16",
});
TypeUInt32 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_UINT32, __name = "UInt32",
});
TypeUInt64 = RegisterType(new SymStruct()
{
Type = TypeStruct, tokenId = Define.KW_UINT64, __name = "UInt64",
});
TypeStruct.Type = TypeStruct;
foreach (var type in _allTypes)
{
globalDomain.AddStruct(type);
}
}
