static KMETHOD Statement_ConstDecl(KonohaContext *kctx, KonohaStack *sfp)
{
VAR_TypeCheck(stmt, ns, reqc);
kToken *symbolToken = SUGAR kNode_GetToken(kctx, stmt, KSymbol_SymbolPattern, NULL);
ksymbol_t unboxKey = symbolToken->symbol;
kNode *constNode = SUGAR TypeCheckNodeByName(kctx, stmt, KSymbol_ExprPattern, ns, KClass_INFER, TypeCheckPolicy_CONST);
if(!kNode_IsError(constNode)) {
KClass *constClass = KClass_(constNode->attrTypeId);
ktypeattr_t type = constClass->typeId;
uintptr_t unboxValue;
kbool_t result = false;
if(kNode_node(constNode) == KNode_Null) { // const C = String
type = VirtualType_KClass;
unboxValue = (uintptr_t)constClass;
result = true;
}
else if(kNode_node(constNode) == KNode_Const) { // const C = "1"
unboxValue = (uintptr_t)constNode->ObjectConstValue;
result = true;
}
else if(kNode_node(constNode) == KNode_UnboxConst) { // const c = 1
unboxValue = constNode->unboxConstValue;
result = true;
}
if(result) {
KMakeTraceUL(trace, sfp, kNode_uline(stmt));
result = KLIB kNameSpace_SetConstData(kctx, ns, unboxKey, type, unboxValue, trace);
}
else {
kNode_Message(kctx, stmt, ErrTag, "constant value is expected: %s%s", KSymbol_Fmt2(unboxKey));
}
constNode = kNode_Type(kctx, stmt, KNode_Done, KType_void);
}
KReturn(constNode);
}
//## Token Node.getToken(Symbol key, Token def);
static KMETHOD Node_getToken(KonohaContext *kctx, KonohaStack *sfp)
{
kNode *stmt = sfp[0].asNode;
ksymbol_t key = (ksymbol_t)sfp[1].intValue;
kToken *def = sfp[2].asToken;
KReturn(SUGAR kNode_GetToken(kctx, stmt, key, def));
}
static KMETHOD Statement_class(KonohaContext *kctx, KonohaStack *sfp)
{
VAR_TypeCheck(stmt, ns, reqc);
kToken *tokenClassName = SUGAR kNode_GetToken(kctx, stmt, KSymbol_("$ClassName"), NULL);
int isNewlyDefinedClass = false;
KClassVar *definedClass = (KClassVar *)KLIB kNameSpace_GetClassByFullName(kctx, ns, kString_text(tokenClassName->text), kString_size(tokenClassName->text), NULL);
if(definedClass == NULL) { // Already defined
kshortflag_t cflag = kNode_ParseClassFlag(kctx, stmt, KClassFlag_Virtual);
KMakeTraceUL(trace, sfp, kNode_uline(stmt));
definedClass = kNameSpace_DefineClassName(kctx, ns, cflag, tokenClassName->text, trace);
isNewlyDefinedClass = true;
}
kNode *block = kNode_ParseClassNodeNULL(kctx, stmt, tokenClassName);
size_t declsize = kNode_countFieldSize(kctx, block);
if(isNewlyDefinedClass) { // Already defined
KClass *superClass = KClass_Object;
kToken *tokenSuperClass= SUGAR kNode_GetToken(kctx, stmt, KSymbol_("extends"), NULL);
if(tokenSuperClass != NULL) {
DBG_ASSERT(Token_isVirtualTypeLiteral(tokenSuperClass));
superClass = KClass_(Token_typeLiteral(tokenSuperClass));
if(KClass_Is(Final, superClass)) {
KReturn(SUGAR MessageNode(kctx, stmt, NULL, ns, ErrTag, "%s is final", KClass_text(superClass)));
}
if(KClass_Is(Virtual, superClass)) {
KReturn(SUGAR MessageNode(kctx, stmt, NULL, ns, ErrTag, "%s is still virtual", KClass_text(superClass)));
}
}
size_t initsize = (block != NULL) ? declsize : initFieldSizeOfVirtualClass(superClass);
KClass_InitField(kctx, definedClass, superClass, initsize);
}
else {
if(declsize > 0 && !KClass_Is(Virtual, definedClass)) {
KReturn(SUGAR MessageNode(kctx, stmt, NULL, ns, ErrTag, "%s has already defined", KClass_text(definedClass)));
}
}
if(block != NULL) {
if(!kNode_declClassField(kctx, block, ns, definedClass)) {
KReturnUnboxValue(false);
}
KClass_Set(Virtual, definedClass, false);
}
kToken_SetTypeId(kctx, tokenClassName, ns, definedClass->typeId);
kNode_AddMethodDeclNode(kctx, block, tokenClassName, stmt);
KReturn(kNode_Type(kctx, stmt, KNode_Done, KType_void));
}
static kbool_t SetParamType(KonohaContext *kctx, kNode *stmt, int n, kparamtype_t *p)
{
kToken *typeToken = SUGAR kNode_GetToken(kctx, stmt, KSymbol_TypePattern, NULL);
kNode *expr = SUGAR kNode_GetNode(kctx, stmt, KSymbol_ExprPattern, NULL);
DBG_ASSERT(typeToken != NULL);
DBG_ASSERT(expr != NULL);
if(kNode_isSymbolTerm(expr)) {
kToken *tkN = expr->TermToken;
p[n].name = tkN->symbol;
p[n].attrTypeId = Token_typeLiteral(typeToken);
return true;
}
return false;
}
static kbool_t kNode_declClassField(KonohaContext *kctx, kNode *bk, kNameSpace *ns, KClassVar *ct)
{
size_t i;
kbool_t failedOnce = false;
for(i = 0; i < kNode_GetNodeListSize(kctx, bk); i++) {
kNode *stmt = bk->NodeList->NodeItems[i];
if(stmt->syn->keyword == KSymbol_TypeDeclPattern) {
kToken *tk = SUGAR kNode_GetToken(kctx, stmt, KSymbol_TypePattern, NULL);
kNode *expr = SUGAR kNode_GetNode(kctx, stmt, KSymbol_ExprPattern, NULL);
if(!kNode_AddClassField(kctx, stmt, ns, ct, Token_typeLiteral(tk), expr)) {
failedOnce = true;
}
}
}
return !(failedOnce);
}
static KMETHOD Statement_namespace(KonohaContext *kctx, KonohaStack *sfp)
{
VAR_TypeCheck(stmt, ns, reqc);
kstatus_t result = K_CONTINUE;
kToken *tk = SUGAR kNode_GetToken(kctx, stmt, KSymbol_BlockPattern, NULL);
if(tk != NULL && tk->resolvedSyntaxInfo->keyword == TokenType_LazyBlock) {
INIT_GCSTACK();
kNameSpace *ns = new_(NameSpace, kNode_ns(stmt), _GcStack);
KTokenSeq range = {ns, KGetParserContext(kctx)->preparedTokenList};
KTokenSeq_Push(kctx, range);
SUGAR Tokenize(kctx, ns, kString_text(tk->text), tk->uline, tk->indent, range.tokenList);
KTokenSeq_End(kctx, range);
result = SUGAR EvalTokenList(kctx, &range, NULL/*trace*/);
KTokenSeq_Pop(kctx, range);
RESET_GCSTACK();
kNode_Type(kctx, stmt, KNode_Done, KType_void);
}
KReturnUnboxValue(result == K_CONTINUE);
}
/* ------------------------------------------------------------------------ */
static KMETHOD TypeCheck_Closure(KonohaContext *kctx, KonohaStack *sfp)
{
VAR_TypeCheck(expr, ns, reqc);
kNode *texpr = K_NULLNODE;
INIT_GCSTACK();
kToken *typeTk = SUGAR kNode_GetToken(kctx, expr, KSymbol_TypePattern, NULL);
KClass *EnvObjectClass = NULL;
KClass *envCt = CreateEnvClass(kctx, ns, typeTk, &EnvObjectClass);
kMethod *mtd = CompileClosure(kctx, ns, expr, envCt, typeTk, &texpr);
/* type check is OK */
if(texpr != K_NULLNODE) {
/*
* FunctionExpression
* 0: Method
* 1: EnvObject's Default Object
* 2: Current LocalScope Variable
* 3: ditto
* 4: ...
*/
kNode_Type(texpr, KNode_Function, envCt->typeId);
KFieldSet(expr, texpr->NodeList, new_(Array, 0, OnField));
KLIB kArray_Add(kctx, texpr->NodeList, mtd);
KLIB kArray_Add(kctx, texpr->NodeList, KLIB Knull(kctx, EnvObjectClass));
size_t i = 0;
struct KGammaLocalData *genv = ns->genv;
if(genv->thisClass == KClass_NameSpace) {
i = 1;
}
for(; i < genv->localScope.varsize; i++) {
kNode *node = new_VariableNode(kctx, ns, KNode_Local, genv->localScope.varItems[i].attrTypeId, i);
KLIB kArray_Add(kctx, texpr->NodeList, node);
}
}
RESET_GCSTACK();
KReturn(texpr);
}