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import {ExpressionNode} from "../../nodes";
import {AbstractType} from "../../types/basic/_abstract_type";
import {UnknownType} from "../../types/basic/unknown_type";
import {INode} from "../../nodes/_inode";
import {Dash, InstanceArrow} from "../../1_lexer/tokens";
import {StructureType, ObjectReferenceType, VoidType, DataReference, TableType, XStringType, StringType} from "../../types/basic";
import {ComponentName} from "./component_name";
import {AttributeName} from "./attribute_name";
import {FieldOffset} from "./field_offset";
import {ReferenceType} from "../_reference";
import {TableExpression} from "./table_expression";
import {Dereference} from "../../2_statements/expressions";
import {FieldLength} from "./field_length";
import {Cast} from "./cast";
import {CheckSyntaxKey, SyntaxInput, syntaxIssue} from "../_syntax_input";
export class Target {
public static runSyntax(node: ExpressionNode, input: SyntaxInput): AbstractType | undefined {
const concat = node.concatTokens();
if (concat.includes("-")) {
// workaround for names with dashes
const found = input.scope.findVariable(concat);
if (found) {
input.scope.addReference(node.getFirstToken(), found, ReferenceType.DataWriteReference, input.filename);
return found.getType();
}
}
const children = node.getChildren();
const first = children[0];
if (first === undefined || !(first instanceof ExpressionNode)) {
return undefined;
}
let context = this.findTop(first, input);
if (context === undefined) {
const message = `"${first.getFirstToken().getStr()}" not found, Target`;
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
let currentIndex = 1;
while (currentIndex <= children.length) {
const current = children[currentIndex];
if (current === undefined) {
break;
}
currentIndex++;
if (current.get() instanceof Dash) {
if (context instanceof UnknownType) {
const message = "Not a structure, type unknown, target";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
} else if (!(context instanceof StructureType)
&& !(context instanceof TableType && context.isWithHeader() && context.getRowType() instanceof StructureType)
&& !(context instanceof TableType && context.isWithHeader() && context.getRowType() instanceof VoidType)
&& !(context instanceof VoidType)) {
const message = "Not a structure, target, " + context?.constructor.name + ", " + current.concatTokens();
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
} else if (current.get() instanceof InstanceArrow) {
if (!(context instanceof ObjectReferenceType)
&& !(context instanceof DataReference)
&& !(context instanceof VoidType)) {
const message = "Not an object reference, target";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
} else if (current.get() instanceof Dereference) {
if (!(context instanceof DataReference) && !(context instanceof VoidType)) {
const message = "Not an object reference, target";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
if (!(context instanceof VoidType)) {
context = context.getType();
}
} else if (current.get() instanceof Expressions.ComponentName) {
context = ComponentName.runSyntax(context, current, input);
} else if (current.get() instanceof Expressions.TableBody) {
if (!(context instanceof TableType)
&& !(context instanceof VoidType)
&& !(context instanceof UnknownType)
&& !(context instanceof UnknownType)) {
const message = "Not a internal table, \"[]\"";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
if (context instanceof TableType && context.isWithHeader()) {
context = new TableType(context.getRowType(), {...context.getOptions(), withHeader: false});
}
} else if (current instanceof ExpressionNode
&& current.get() instanceof Expressions.TableExpression) {
if (!(context instanceof TableType) && !(context instanceof VoidType)) {
const message = "Table expression, expected table";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
TableExpression.runSyntax(current, input);
if (!(context instanceof VoidType)) {
context = context.getRowType();
}
} else if (current.get() instanceof Expressions.AttributeName) {
const type = children.length === 0 ? ReferenceType.DataWriteReference : ReferenceType.DataReadReference;
context = AttributeName.runSyntax(context, current, input, type);
}
}
const offset = node.findDirectExpression(Expressions.FieldOffset);
if (offset) {
if (context instanceof XStringType || context instanceof StringType) {
const message = "xstring/string offset/length in writer position not possible";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
FieldOffset.runSyntax(offset, input);
}
const length = node.findDirectExpression(Expressions.FieldLength);
if (length) {
if (context instanceof XStringType || context instanceof StringType) {
const message = "xstring/string offset/length in writer position not possible";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
FieldLength.runSyntax(length, input);
}
return context;
}
/////////////////////////////////
private static findTop(node: INode | undefined, input: SyntaxInput): AbstractType | undefined {
if (node === undefined) {
return undefined;
}
const token = node.getFirstToken();
const name = token.getStr();
if (node.get() instanceof Expressions.TargetField
|| node.get() instanceof Expressions.TargetFieldSymbol) {
const found = input.scope.findVariable(name);
if (found) {
input.scope.addReference(token, found, ReferenceType.DataWriteReference, input.filename);
}
if (name.includes("~")) {
const idef = input.scope.findInterfaceDefinition(name.split("~")[0]);
if (idef) {
input.scope.addReference(token, idef, ReferenceType.ObjectOrientedReference, input.filename);
}
}
return found?.getType();
} else if (node.get() instanceof Expressions.ClassName) {
const found = input.scope.findObjectDefinition(name);
if (found) {
input.scope.addReference(token, found, ReferenceType.ObjectOrientedReference, input.filename);
return new ObjectReferenceType(found);
} else if (input.scope.getDDIC().inErrorNamespace(name) === false) {
input.scope.addReference(token, undefined, ReferenceType.ObjectOrientedVoidReference, input.filename, {ooName: name, ooType: "CLAS"});
return VoidType.get(name);
} else {
return new UnknownType(name + " unknown, Target");
}
} else if (node.get() instanceof Expressions.Cast && node instanceof ExpressionNode) {
const ret = Cast.runSyntax(node, input, undefined);
if (ret instanceof UnknownType) {
const message = "CAST, uknown type";
input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
return VoidType.get(CheckSyntaxKey);
}
return ret;
}
return new UnknownType("unknown target type");
}
} |