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import {AnyType, CharacterType, CLikeType, CSequenceType, DataReference, DataType, DateType, DecFloat16Type, DecFloat34Type, DecFloatType, FloatingPointType, FloatType, GenericObjectReferenceType, HexType, Integer8Type, IntegerType, NumericGenericType, NumericType, ObjectReferenceType, PackedType, SimpleType, StringType, StructureType, TableType, TimeType, UnknownType, VoidType, XGenericType, XSequenceType, XStringType} from "../types/basic";
import {AbstractType} from "../types/basic/_abstract_type";
import {CGenericType} from "../types/basic/cgeneric_type";
import {CurrentScope} from "./_current_scope";
// todo: refactor to static? for performance
export class TypeUtils {
// scope is needed to determine class hieraracy for typing
private readonly scope: CurrentScope;
public constructor(scope: CurrentScope) {
this.scope = scope;
}
public isCharLikeStrict(type: AbstractType | undefined): boolean {
if (type === undefined) {
return false;
} else if (type instanceof StructureType) {
for (const c of type.getComponents()) {
if (this.isCharLikeStrict(c.type) === false) {
return false;
}
}
return true;
} else if (type instanceof TableType && type.isWithHeader()) {
return this.isCharLikeStrict(type.getRowType());
} else if (type instanceof StringType
|| type instanceof AnyType
|| type instanceof DataType
|| type instanceof CharacterType
|| type instanceof SimpleType
|| type instanceof CGenericType
|| type instanceof CLikeType
|| type instanceof DateType
|| type instanceof CSequenceType
|| type instanceof NumericGenericType
|| type instanceof NumericType
|| type instanceof TimeType
|| type instanceof UnknownType
|| type instanceof VoidType) {
return true;
}
return false;
}
public isCharLike(type: AbstractType | undefined): boolean {
if (type === undefined) {
return false;
} else if (type instanceof TableType && type.isWithHeader()) {
return this.isCharLike(type.getRowType());
} else if (type instanceof StructureType) {
for (const c of type.getComponents()) {
if (this.isCharLike(c.type) === false) {
return false;
}
}
return true;
} else if (type instanceof StringType
|| type instanceof CharacterType
|| type instanceof VoidType
|| type instanceof AnyType
|| type instanceof UnknownType
|| type instanceof NumericType
|| type instanceof IntegerType
|| type instanceof Integer8Type
|| type instanceof SimpleType
|| type instanceof FloatType
|| type instanceof FloatingPointType
|| type instanceof DecFloatType
|| type instanceof DecFloat16Type
|| type instanceof DecFloat34Type
|| type instanceof NumericGenericType
|| type instanceof CSequenceType
|| type instanceof CGenericType
|| type instanceof DateType
|| type instanceof DataType
|| type instanceof CLikeType
|| type instanceof PackedType
|| type instanceof TimeType) {
return true;
}
return false;
}
public isHexLike(type: AbstractType | undefined): boolean {
if (type === undefined) {
return false;
} else if (type instanceof StructureType) {
for (const c of type.getComponents()) {
if (this.isHexLike(c.type) === false) {
return false;
}
}
return true;
} else if (type instanceof TableType && type.isWithHeader()) {
return this.isHexLike(type.getRowType());
} else if (type instanceof XStringType
|| type instanceof HexType
|| type instanceof VoidType
|| type instanceof XGenericType
|| type instanceof XSequenceType
|| type instanceof AnyType
|| type instanceof UnknownType) {
return true;
}
return false;
}
public isOOAssignable(source: ObjectReferenceType, target: ObjectReferenceType): boolean {
let sid = source.getIdentifier();
let tid = target.getIdentifier();
const tname = tid.getName().toUpperCase();
const sname = sid.getName().toUpperCase();
if (tname === sname) {
return true;
}
/*
console.dir(sid);
console.dir(tid);
*/
if (!(sid instanceof ClassDefinition || sid instanceof InterfaceDefinition)) {
const found = this.scope.findObjectDefinition(sid.getName());
if (found) {
sid = found;
} else {
return false;
}
}
if (!(tid instanceof ClassDefinition || tid instanceof InterfaceDefinition)) {
const found = this.scope.findObjectDefinition(tid.getName());
if (found) {
tid = found;
} else {
return false;
}
}
if (sid instanceof ClassDefinition && tid instanceof ClassDefinition) {
if (sname === tname) {
return true;
}
const slist = this.listAllSupers(sid);
if (slist.indexOf(tname) >= 0) {
return true;
}
} else if (sid instanceof ClassDefinition && tid instanceof InterfaceDefinition) {
if (sid.getImplementing().some(i => i.name === tname) ) {
return true;
}
const slist = this.listAllInterfaces(sid);
if (slist.indexOf(tname) >= 0) {
return true;
}
} else if (sid instanceof InterfaceDefinition && tid instanceof InterfaceDefinition) {
if (sname === tname) {
return true;
}
if (sid.getImplementing().some(i => i.name === tname) ) {
return true;
}
const slist = this.listAllInterfaces(sid);
if (slist.indexOf(tname) >= 0) {
return true;
}
}
return false;
}
private listAllInterfaces(cdef: ClassDefinition | InterfaceDefinition): string[] {
const ret = new Set<string>();
const stack: string[] = [];
// initialize
cdef.getImplementing().forEach(i => stack.push(i.name));
if (cdef instanceof ClassDefinition) {
const supers = this.listAllSupers(cdef);
for (const s of supers) {
this.scope.findClassDefinition(s)?.getImplementing().forEach(i => stack.push(i.name));
}
}
// main loop
while (stack.length > 0) {
const intf = stack.pop()!.toUpperCase();
ret.add(intf);
const idef = this.scope.findInterfaceDefinition(intf);
idef?.getImplementing().forEach(i => stack.push(i.name));
}
return Array.from(ret.values());
}
private listAllSupers(cdef: ClassDefinition): string[] {
const ret: string[] = [];
let sup = cdef.getSuperClass();
while (sup !== undefined) {
ret.push(sup?.toUpperCase());
sup = this.scope.findClassDefinition(sup)?.getSuperClass()?.toUpperCase();
}
return ret;
}
public isCastable(_source: AbstractType | undefined, _target: AbstractType | undefined): boolean {
// todo
return true;
}
private structureContainsString(structure: StructureType): boolean {
for (const c of structure.getComponents()) {
if (c.type instanceof StringType) {
return true;
}
}
return false;
}
private structureContainsVoid(structure: StructureType): boolean {
for (const c of structure.getComponents()) {
if (c.type instanceof VoidType) {
return true;
}
}
return false;
}
public isAssignableStrict(source: AbstractType | undefined,
target: AbstractType | undefined,
calculated: boolean = false): boolean {
/*
console.dir(source);
console.dir(target);
console.dir(calculated);
*/
if (calculated && source instanceof StringType && target instanceof XStringType) {
return false;
}
if (calculated) {
return this.isAssignable(source, target);
}
if (source instanceof CharacterType) {
if (target instanceof CharacterType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return source.getLength() <= target.getLength();
}
return source.getLength() === target.getLength();
} else if (target instanceof IntegerType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return true;
}
return false;
} else if (target instanceof StringType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return true;
}
return false;
}
} else if (source instanceof HexType) {
if (target instanceof HexType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return source.getLength() <= target.getLength();
}
return source.getLength() === target.getLength();
} else if (target instanceof XStringType) {
return false;
} else if (target instanceof IntegerType || target instanceof Integer8Type) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return true;
}
return false;
}
} else if (source instanceof StringType) {
if (target instanceof StructureType && this.structureContainsString(target)) {
return false;
} else if (target instanceof IntegerType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return true;
}
return false;
} else if (target instanceof CGenericType
|| target instanceof GenericObjectReferenceType) {
return false;
} else if (target instanceof XSequenceType || target instanceof XStringType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return true;
}
return false;
}
return true;
} else if (source instanceof StructureType) {
if (target instanceof StructureType) {
const sourceComponents = source.getComponents();
const targetComponents = target.getComponents();
if (sourceComponents.length !== targetComponents.length) {
return false;
}
for (let i = 0; i < sourceComponents.length; i++) {
if (this.isAssignableStrict(sourceComponents[i].type, targetComponents[i].type) === false) {
return false;
}
}
return true;
} else if (target instanceof CLikeType) {
return this.isCharLikeStrict(source);
} else if (target instanceof VoidType
|| target instanceof AnyType
|| target instanceof DataType) {
return true;
}
return false;
} else if (source instanceof Integer8Type) {
if (target instanceof IntegerType || target instanceof StringType) {
return false;
}
} else if (source instanceof IntegerType) {
if (target instanceof StringType) {
return false;
} else if (target instanceof Integer8Type || target instanceof PackedType) {
if (source.getAbstractTypeData()?.derivedFromConstant === true) {
return true;
}
return false;
}
} else if (source instanceof FloatType) {
if (target instanceof IntegerType) {
return false;
}
} else if (source instanceof GenericObjectReferenceType) {
if (target instanceof ObjectReferenceType
|| target instanceof StringType
|| target instanceof CharacterType
|| target instanceof TableType
|| target instanceof CLikeType) {
return false;
}
} else if (source instanceof ObjectReferenceType) {
if (target instanceof XSequenceType
|| target instanceof IntegerType
|| target instanceof StructureType
|| target instanceof TableType
|| target instanceof XStringType) {
return false;
}
} else if (source instanceof XStringType) {
if (target instanceof CLikeType
|| target instanceof IntegerType
|| target instanceof StringType
|| target instanceof ObjectReferenceType
|| target instanceof HexType) {
return false;
}
} else if (source instanceof TableType) {
if (target instanceof TableType) {
return this.isAssignableStrict(source.getRowType(), target.getRowType());
} else if (target instanceof UnknownType
|| target instanceof AnyType
|| target instanceof VoidType) {
return true;
}
}
return this.isAssignable(source, target);
}
public isAssignable(source: AbstractType | undefined, target: AbstractType | undefined): boolean {
/*
console.dir(source);
console.dir(target);
*/
if (target instanceof TableType) {
if (target.isWithHeader()) {
return this.isAssignable(source, target.getRowType());
}
if (source instanceof VoidType
|| source instanceof AnyType
|| source instanceof DataType
|| source instanceof UnknownType) {
return true;
} else if (source instanceof TableType) {
const targetRowType = target.getRowType();
const sourceRowType = source.getRowType();
if (targetRowType instanceof VoidType || targetRowType instanceof AnyType || targetRowType instanceof UnknownType) {
return true;
} else if (sourceRowType instanceof VoidType || sourceRowType instanceof AnyType || sourceRowType instanceof UnknownType) {
return true;
}
if (targetRowType instanceof StructureType
&& this.structureContainsString(targetRowType)) {
if (!(sourceRowType instanceof StructureType)) {
return false;
} else if (!(this.structureContainsString(sourceRowType))
&& this.structureContainsVoid(sourceRowType) === false) {
return false;
}
} else if (sourceRowType instanceof StructureType
&& this.structureContainsString(sourceRowType)) {
if (!(targetRowType instanceof StructureType)) {
return false;
} else if (!(this.structureContainsString(targetRowType))
&& this.structureContainsVoid(targetRowType) === false) {
return false;
}
}
return true;
}
return false;
} else if (target instanceof ObjectReferenceType && source instanceof ObjectReferenceType) {
return this.isOOAssignable(source, target);
} else if (target instanceof ObjectReferenceType
|| target instanceof GenericObjectReferenceType) {
if (source instanceof ObjectReferenceType
|| source instanceof GenericObjectReferenceType
|| source instanceof VoidType
|| source instanceof DataType
|| source instanceof AnyType
|| source instanceof UnknownType) {
return true;
}
return false;
} else if (target instanceof DataReference) {
if (source instanceof DataReference
|| source instanceof VoidType
|| source instanceof DataType
|| source instanceof AnyType
|| source instanceof UnknownType) {
return true;
}
return false;
} else if (target instanceof StructureType) {
if (source instanceof TableType && source.isWithHeader()) {
return this.isAssignable(source.getRowType(), target);
} else if (source instanceof VoidType
|| source instanceof AnyType
|| source instanceof DataType
|| source instanceof UnknownType) {
return true;
} else if (source instanceof StructureType) {
if (this.structureContainsString(target) && !this.structureContainsString(source)) {
return false;
}
return true;
} else if (target.containsVoid() === true) {
return true;
} else if (source instanceof StringType && this.structureContainsString(target)) {
return false;
} else if (source instanceof IntegerType) {
return false;
} else if (this.isCharLike(target) && this.isCharLike(source)) {
return true;
}
return false;
} else if (target instanceof IntegerType
|| target instanceof CharacterType
|| target instanceof StringType) {
if (source instanceof TableType && source.isWithHeader() === false) {
return false;
} else if ((target instanceof StringType || target instanceof CharacterType)
&& source instanceof StructureType
&& this.isCharLike(source)) {
return true;
} else if (source instanceof DataReference
|| source instanceof ObjectReferenceType
|| source instanceof StructureType
|| source instanceof GenericObjectReferenceType) {
return false;
}
return true;
} else if (target instanceof SimpleType) {
if (source instanceof ObjectReferenceType
|| source instanceof TableType) {
return false;
}
}
return true;
}
} |