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import {ObjectReferenceType, VoidType, DataReference, UnknownType} from "../../types/basic";
import * as Expressions from "../../2_statements/expressions";
import {AbstractType} from "../../types/basic/_abstract_type";
import {ReferenceType} from "../_reference";
import {Source} from "./source";
import {ObjectOriented} from "../_object_oriented";
import {IMethodDefinition} from "../../types/_method_definition";
import {MethodParameters} from "./method_parameters";
import {BasicTypes} from "../basic_types";
import {TypeUtils} from "../_type_utils";
import {CheckSyntaxKey, SyntaxInput, syntaxIssue} from "../_syntax_input";
import {AssertError} from "../assert_error";
import {TypedIdentifier} from "../../types/_typed_identifier";
import {CreateObject} from "../statements/create_object";
export class NewObject {
public static runSyntax(node: ExpressionNode, input: SyntaxInput, targetType: AbstractType | undefined): AbstractType {
let ret: AbstractType | undefined = undefined;
const typeExpr = node.findDirectExpression(Expressions.TypeNameOrInfer);
const typeToken = typeExpr?.getFirstToken();
if (typeToken === undefined) {
throw new Error("NewObject, child TypeNameOrInfer not found");
}
const typeName = typeExpr?.concatTokens();
if (typeName === undefined) {
throw new AssertError("NewObject, child TypeNameOrInfer not found");
} else if (typeName === "#" && targetType && targetType instanceof ObjectReferenceType) {
const clas = input.scope.findClassDefinition(targetType.getIdentifierName());
if (clas) {
const tid = new TypedIdentifier(typeToken, input.filename, targetType);
input.scope.addReference(typeToken, tid, ReferenceType.InferredType, input.filename);
input.scope.addReference(typeToken, clas, ReferenceType.ConstructorReference, input.filename,
{ooName: clas.getName()});
} else {
const intf = input.scope.findInterfaceDefinition(targetType.getIdentifierName());
if (intf) {
const message = intf.getName() + " is an interface, cannot be instantiated";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
}
ret = targetType;
if (clas?.isAbstract() === true) {
const message = clas.getName() + " is abstract, cannot be instantiated";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
if (clas) {
const err = CreateObject.checkInstantiationAllowed(clas, input);
if (err) {
input.issues.push(syntaxIssue(input, node.getFirstToken(), err));
return VoidType.get(CheckSyntaxKey);
}
}
} else if (typeName === "#" && targetType) {
ret = targetType;
} else if (typeName === "#") {
throw new AssertError("NewObject, todo, infer type");
}
if (ret === undefined) {
const objDefinition = input.scope.findObjectDefinition(typeName);
if (objDefinition) {
const objref = new ObjectReferenceType(objDefinition);
const tid = new TypedIdentifier(typeToken, input.filename, objref);
input.scope.addReference(typeToken, tid, ReferenceType.InferredType, input.filename);
input.scope.addReference(typeToken, objDefinition, ReferenceType.ObjectOrientedReference, input.filename);
input.scope.addReference(typeToken, objDefinition, ReferenceType.ConstructorReference, input.filename,
{ooName: objDefinition.getName()});
const clas = input.scope.findClassDefinition(objref.getIdentifierName());
if (clas?.isAbstract() === true) {
const message = clas.getName() + " is abstract, cannot be instantiated";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
if (clas) {
const err = CreateObject.checkInstantiationAllowed(clas, input);
if (err) {
input.issues.push(syntaxIssue(input, node.getFirstToken(), err));
return VoidType.get(CheckSyntaxKey);
}
}
ret = objref;
}
}
if (ret === undefined) {
const basic = new BasicTypes(input);
const type = basic.resolveTypeName(typeExpr);
if (type instanceof UnknownType) {
ret = type;
} else if (type && !(type instanceof VoidType)) {
ret = new DataReference(type);
} else if (type instanceof VoidType) {
ret = type;
} else {
const message = "Type \"" + typeName + "\" not found in scope, NewObject";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
}
if (ret instanceof ObjectReferenceType) {
this.parameters(node, ret, input);
} else {
for (const s of node.findAllExpressions(Expressions.Source)) {
Source.runSyntax(s, input, ret);
}
}
if (ret instanceof UnknownType && input.scope.getDDIC().inErrorNamespace(typeName) === true) {
const message = "Class or type \"" + typeName + "\" not found";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
return ret;
}
private static parameters(node: ExpressionNode, obj: ObjectReferenceType, input: SyntaxInput) {
const name = obj.getIdentifier().getName();
const def = input.scope.findObjectDefinition(name);
const helper = new ObjectOriented(input.scope);
// eslint-disable-next-line prefer-const
let {method} = helper.searchMethodName(def, "CONSTRUCTOR");
const requiredParameters = method?.getParameters().getRequiredParameters() || [];
const source = node.findDirectExpression(Expressions.Source);
const parameters = node.findDirectExpression(Expressions.ParameterListS);
if (source) {
// single unnamed parameter
const type = this.defaultImportingType(method);
if (type === undefined) {
const message = "NewObject, no default importing parameter found for constructor, " + name;
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return;
}
const sourceType = Source.runSyntax(source, input, type);
if (new TypeUtils(input.scope).isAssignableStrict(sourceType, type) === false) {
const message = `NEW parameter type not compatible`;
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return;
}
} else if (parameters) {
// parameters with names
if (method === undefined) {
const message = "NewObject, no parameters for constructor found, " + name;
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return;
}
new MethodParameters().checkExporting(parameters, input, method);
} else if (requiredParameters.length > 0) {
const message = `constructor parameter "${requiredParameters[0].getName()}" must be supplied, ` + name;
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return;
}
}
private static defaultImportingType(method: IMethodDefinition | undefined) {
let targetType: AbstractType | undefined = undefined;
if (method === undefined) {
return undefined;
}
const name = method.getParameters().getDefaultImporting();
for (const i of method.getParameters().getImporting()) {
if (i.getName().toUpperCase() === name) {
targetType = i.getType();
}
}
return targetType;
}
} |