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import * as Expressions from "../../2_statements/expressions";
import {AbstractType} from "../../types/basic/_abstract_type";
import {VoidType, ObjectReferenceType} from "../../types/basic";
import {FieldChain} from "./field_chain";
import {INode} from "../../nodes/_inode";
import {ObjectOriented} from "../_object_oriented";
import {NewObject} from "./new_object";
import {Cast} from "./cast";
import {BuiltIn} from "../_builtin";
import {MethodCallParam} from "./method_call_param";
import {IReferenceExtras, ReferenceType} from "../_reference";
import {ComponentName} from "./component_name";
import {AttributeName} from "./attribute_name";
import {CheckSyntaxKey, SyntaxInput, syntaxIssue} from "../_syntax_input";
export class MethodCallChain {
public runSyntax(
node: ExpressionNode,
input: SyntaxInput,
targetType?: AbstractType): AbstractType | undefined {
const helper = new ObjectOriented(input.scope);
const children = node.getChildren().slice();
const first = children.shift();
if (first === undefined) {
const message = "MethodCallChain, first child expected";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return new VoidType(CheckSyntaxKey);
}
let context: AbstractType | undefined = this.findTop(first, input, targetType);
if (first.get() instanceof Expressions.MethodCall) {
children.unshift(first);
}
let previous: ExpressionNode | TokenNode | undefined = undefined;
while (children.length > 0) {
const current = children.shift();
if (current === undefined) {
break;
}
if (current instanceof ExpressionNode && current.get() instanceof Expressions.MethodCall) {
// for built-in methods set className to undefined
const className = context instanceof ObjectReferenceType ? context.getIdentifierName() : undefined;
const methodToken = current.findDirectExpression(Expressions.MethodName)?.getFirstToken();
const methodName = methodToken?.getStr();
const def = input.scope.findObjectDefinition(className);
// eslint-disable-next-line prefer-const
let {method, def: foundDef} = helper.searchMethodName(def, methodName);
if (method === undefined && current === first) {
method = new BuiltIn().searchBuiltin(methodName?.toUpperCase());
if (method) {
input.scope.addReference(methodToken, method, ReferenceType.BuiltinMethodReference, input.filename);
}
} else {
if (previous && previous.getFirstToken().getStr() === "=>" && method?.isStatic() === false) {
const message = "Method \"" + methodName + "\" not static";
input.issues.push(syntaxIssue(input, methodToken!, message));
return new VoidType(CheckSyntaxKey);
}
const voidedName = context instanceof VoidType ? context.getVoided() : undefined;
const extra = helper.methodReferenceExtras(foundDef, className || voidedName);
input.scope.addReference(methodToken, method, ReferenceType.MethodReference, input.filename, extra);
}
if (methodName?.includes("~")) {
const name = methodName.split("~")[0];
const idef = input.scope.findInterfaceDefinition(name);
if (idef) {
input.scope.addReference(methodToken, idef, ReferenceType.ObjectOrientedReference, input.filename);
}
}
if (method === undefined && methodName?.toUpperCase() === "CONSTRUCTOR") {
context = undefined; // todo, this is a workaround, constructors always exists
} else if (method === undefined && !(context instanceof VoidType)) {
const message = "Method \"" + methodName + "\" not found, methodCallChain";
input.issues.push(syntaxIssue(input, methodToken!, message));
return new VoidType(CheckSyntaxKey);
} else if (method) {
const ret = method.getParameters().getReturning()?.getType();
context = ret;
}
const param = current.findDirectExpression(Expressions.MethodCallParam);
if (param && method) {
new MethodCallParam().runSyntax(param, input, method);
} else if (param && context instanceof VoidType) {
new MethodCallParam().runSyntax(param, input, context);
}
} else if (current instanceof ExpressionNode && current.get() instanceof Expressions.ComponentName) {
context = new ComponentName().runSyntax(context, current, input);
} else if (current instanceof ExpressionNode && current.get() instanceof Expressions.AttributeName) {
context = new AttributeName().runSyntax(context, current, input);
}
previous = current;
}
return context;
}
//////////////////////////////////////
private findTop(first: INode, input: SyntaxInput, targetType: AbstractType | undefined): AbstractType | undefined {
if (first.get() instanceof Expressions.ClassName) {
const token = first.getFirstToken();
const className = token.getStr();
const classDefinition = input.scope.findObjectDefinition(className);
if (classDefinition === undefined && input.scope.getDDIC().inErrorNamespace(className) === false) {
const extra: IReferenceExtras = {ooName: className, ooType: "Void"};
input.scope.addReference(token, undefined, ReferenceType.ObjectOrientedVoidReference, input.filename, extra);
return new VoidType(className);
} else if (classDefinition === undefined) {
const message = "Class " + className + " not found";
input.issues.push(syntaxIssue(input, first.getFirstToken(), message));
return new VoidType(CheckSyntaxKey);
}
input.scope.addReference(first.getFirstToken(), classDefinition, ReferenceType.ObjectOrientedReference, input.filename);
return new ObjectReferenceType(classDefinition);
} else if (first instanceof ExpressionNode && first.get() instanceof Expressions.FieldChain) {
return new FieldChain().runSyntax(first, input, ReferenceType.DataReadReference);
} else if (first instanceof ExpressionNode && first.get() instanceof Expressions.NewObject) {
return new NewObject().runSyntax(first, input, targetType);
} else if (first instanceof ExpressionNode && first.get() instanceof Expressions.Cast) {
return new Cast().runSyntax(first, input, targetType);
} else {
const meType = input.scope.findVariable("me")?.getType();
if (meType) {
return meType;
}
}
return undefined;
}
} |