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Moved type checking into the type checking function

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This commit is contained in:
Kayne Ruse
2022-09-09 19:39:05 +01:00
parent 22d0fe596a
commit f2443fbde0
2 changed files with 53 additions and 42 deletions
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69
source/scope.c
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@@ -22,7 +22,12 @@ static void freeAncestorChain(Scope* scope) {
}
//return false if invalid type
static bool checkType(Literal typeLiteral, Literal value) {
static bool checkType(Literal typeLiteral, Literal original, Literal value, bool constCheck) {
//for constants, fail if original != value
if (constCheck && AS_TYPE(typeLiteral).constant && !literalsAreEqual(original, value)) {
return false;
}
//for any types
if (AS_TYPE(typeLiteral).typeOf == LITERAL_ANY) {
return true;
@@ -65,9 +70,18 @@ static bool checkType(Literal typeLiteral, Literal value) {
return false;
}
//if null, assume it's a new entry
if (IS_NULL(original)) {
return true;
}
//check children
for (int i = 0; i < AS_ARRAY(value)->count; i++) {
if (!checkType(((Literal*)(AS_TYPE(typeLiteral).subtypes))[0], AS_ARRAY(value)->literals[i])) {
if (AS_ARRAY(original)->count <= i) {
return true; //assume new entry pushed
}
if (!checkType(((Literal*)(AS_TYPE(typeLiteral).subtypes))[0], AS_ARRAY(original)->literals[i], AS_ARRAY(value)->literals[i], constCheck)) {
return false;
}
}
@@ -83,18 +97,40 @@ static bool checkType(Literal typeLiteral, Literal value) {
return false;
}
//check children
for (int i = 0; i < AS_DICTIONARY(value)->capacity; i++) {
//only assigned and non-tombstoned keys
if (!IS_NULL(AS_DICTIONARY(value)->entries[i].key)) {
if (!checkType(((Literal*)(AS_TYPE(typeLiteral).subtypes))[0], AS_DICTIONARY(value)->entries[i].key)) {
return false;
}
//if null, assume it's a new entry
if (IS_NULL(original)) {
return true;
}
if (!checkType(((Literal*)(AS_TYPE(typeLiteral).subtypes))[1], AS_DICTIONARY(value)->entries[i].value)) {
return false;
//check each child of value against the child of original
for (int i = 0; i < AS_DICTIONARY(value)->capacity; i++) {
if (IS_NULL(AS_DICTIONARY(value)->entries[i].key)) { //only non-tombstones
continue;
}
//find the internal child of original that matches this child of value
_entry* ptr = NULL;
for (int j = 0; j < AS_DICTIONARY(original)->capacity; j++) {
if (literalsAreEqual(AS_DICTIONARY(original)->entries[j].key, AS_DICTIONARY(value)->entries[i].key)) {
ptr = &AS_DICTIONARY(original)->entries[j];
break;
}
}
//if not found, assume it's a new entry
if (!ptr) {
continue;
}
//check the type of key and value
if (!checkType(((Literal*)(AS_TYPE(typeLiteral).subtypes))[0], ptr->key, AS_DICTIONARY(value)->entries[i].key, constCheck)) {
return false;
}
if (!checkType(((Literal*)(AS_TYPE(typeLiteral).subtypes))[1], ptr->value, AS_DICTIONARY(value)->entries[i].value, constCheck)) {
return false;
}
}
}
@@ -220,15 +256,11 @@ bool setScopeVariable(Scope* scope, Literal key, Literal value, bool constCheck)
//type checking
Literal typeLiteral = getLiteralDictionary(&scope->types, key);
Literal original = getLiteralDictionary(&scope->variables, key);
if (!checkType(typeLiteral, value)) {
freeLiteral(typeLiteral);
return false;
}
//const check
if (constCheck && (AS_TYPE(typeLiteral).constant)) {
if (!checkType(typeLiteral, original, value, constCheck)) {
freeLiteral(typeLiteral);
freeLiteral(original);
return false;
}
@@ -236,6 +268,7 @@ bool setScopeVariable(Scope* scope, Literal key, Literal value, bool constCheck)
setLiteralDictionary(&scope->variables, key, value);
freeLiteral(typeLiteral);
freeLiteral(original);
return true;
}