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* ClassCollector - Extracts class/struct definitions from C++ parse trees.
*
* Handles class members including data fields and member functions.
* Produces ICppClassSymbol instances with optional field information.
*/
/* eslint-disable @typescript-eslint/no-explicit-any */
import ESourceLanguage from "../../../../../utils/types/ESourceLanguage";
import ICppClassSymbol from "../../../../types/symbols/cpp/ICppClassSymbol";
import ICppFunctionSymbol from "../../../../types/symbols/cpp/ICppFunctionSymbol";
import ICppFieldInfo from "../../../../types/symbols/cpp/ICppFieldInfo";
import SymbolTable from "../../SymbolTable";
import SymbolUtils from "../../SymbolUtils";
import DeclaratorUtils from "../utils/DeclaratorUtils";
import FunctionCollector from "./FunctionCollector";
/**
* Result of collecting a class, including the class symbol and any member function symbols.
*/
interface IClassCollectorResult {
classSymbol: ICppClassSymbol;
memberFunctions: ICppFunctionSymbol[];
warnings: string[];
}
/**
* Internal context for member collection.
*/
interface IMemberCollectionContext {
readonly className: string;
readonly sourceFile: string;
readonly symbolTable: SymbolTable | null;
readonly fields: Map<string, ICppFieldInfo> | undefined;
readonly memberFunctions: ICppFunctionSymbol[];
readonly warnings: string[];
}
class ClassCollector {
/**
* Collect a class specifier and return an ICppClassSymbol with member functions.
*
* @param classSpec The class specifier context
* @param sourceFile Source file path
* @param line Line number
* @param currentNamespace Optional current namespace
* @param symbolTable Optional symbol table for storing field info
* @returns The class symbol with member functions, or null if no name
*/
static collect(
classSpec: any,
sourceFile: string,
line: number,
currentNamespace?: string,
symbolTable?: SymbolTable | null,
): IClassCollectorResult | null {
const classHead = classSpec.classHead?.();
Iif (!classHead) return null;
const classHeadName = classHead.classHeadName?.();
Iif (!classHeadName) return null;
const className = classHeadName.className?.();
Iif (!className) return null;
const identifier = className.Identifier?.();
const name = identifier?.getText();
Iif (!name) return null;
const fullName = currentNamespace ? `${currentNamespace}::${name}` : name;
const memberFunctions: ICppFunctionSymbol[] = [];
const warnings: string[] = [];
const fields: Map<string, ICppFieldInfo> | undefined = symbolTable
? new Map()
: undefined;
// Extract class members
const memberSpec = classSpec.memberSpecification?.();
if (memberSpec) {
const ctx: IMemberCollectionContext = {
className: fullName,
sourceFile,
symbolTable: symbolTable ?? null,
fields,
memberFunctions,
warnings,
};
ClassCollector._collectClassMembers(ctx, memberSpec);
}
const classSymbol: ICppClassSymbol = {
kind: "class",
name: fullName,
sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
parent: currentNamespace,
fields: fields && fields.size > 0 ? fields : undefined,
};
return { classSymbol, memberFunctions, warnings };
}
/**
* Collect an anonymous class from a typedef.
*
* @param classSpec The class specifier context (anonymous)
* @param typedefName The typedef name to use as the class name
* @param sourceFile Source file path
* @param line Line number
* @param symbolTable Symbol table for storing field info
* @returns The class symbol result, or null on error
*/
static collectAnonymousTypedef(
classSpec: any,
typedefName: string,
sourceFile: string,
line: number,
symbolTable: SymbolTable,
): IClassCollectorResult | null {
const memberSpec = classSpec.memberSpecification?.();
Iif (!memberSpec) return null;
const memberFunctions: ICppFunctionSymbol[] = [];
const warnings: string[] = [];
const fields = new Map<string, ICppFieldInfo>();
const ctx: IMemberCollectionContext = {
className: typedefName,
sourceFile,
symbolTable,
fields,
memberFunctions,
warnings,
};
ClassCollector._collectClassMembers(ctx, memberSpec);
const classSymbol: ICppClassSymbol = {
kind: "class",
name: typedefName,
sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
fields: fields.size > 0 ? fields : undefined,
};
return { classSymbol, memberFunctions, warnings };
}
/**
* Collect class members (data fields and member functions).
*/
private static _collectClassMembers(
ctx: IMemberCollectionContext,
memberSpec: any,
): void {
for (const memberDecl of memberSpec.memberdeclaration?.() ?? []) {
ClassCollector._collectMemberDeclaration(memberDecl, ctx);
}
}
/**
* Collect a single member declaration.
*/
private static _collectMemberDeclaration(
memberDecl: any,
ctx: IMemberCollectionContext,
): void {
const line = memberDecl.start?.line ?? 0;
// Check for inline function definition within the class
const funcDef = memberDecl.functionDefinition?.();
if (funcDef) {
ClassCollector._collectInlineFunctionDef(
ctx.className,
funcDef,
ctx.sourceFile,
line,
ctx.memberFunctions,
);
return;
}
// Get member declaration list (for data members and function declarations)
const declSpecSeq = memberDecl.declSpecifierSeq?.();
Iif (!declSpecSeq) return;
const fieldType = DeclaratorUtils.extractTypeFromDeclSpecSeq(declSpecSeq);
// Get declarator list
const memberDeclList = memberDecl.memberDeclaratorList?.();
Iif (!memberDeclList) return;
for (const memberDeclarator of memberDeclList.memberDeclarator?.() ?? []) {
ClassCollector._collectMemberDeclarator(
memberDeclarator,
fieldType,
line,
ctx,
);
}
}
/**
* Collect an inline function definition within a class.
*/
private static _collectInlineFunctionDef(
className: string,
funcDef: any,
sourceFile: string,
line: number,
memberFunctions: ICppFunctionSymbol[],
): void {
const declarator = funcDef.declarator?.();
Iif (!declarator) return;
const funcName = DeclaratorUtils.extractDeclaratorName(declarator);
Iif (!funcName) return;
const declSpecSeq = funcDef.declSpecifierSeq?.();
const returnType = declSpecSeq
? DeclaratorUtils.extractTypeFromDeclSpecSeq(declSpecSeq)
: "void";
const symbol = FunctionCollector.collectMemberFunction(
className,
funcName,
declarator,
returnType,
sourceFile,
line,
false, // not a declaration, it's a definition
);
memberFunctions.push(symbol);
}
/**
* Collect a single member declarator (function or data field).
*/
private static _collectMemberDeclarator(
memberDeclarator: any,
fieldType: string,
line: number,
ctx: IMemberCollectionContext,
): void {
const declarator = memberDeclarator.declarator?.();
Iif (!declarator) return;
const fieldName = DeclaratorUtils.extractDeclaratorName(declarator);
Iif (!fieldName) return;
// Check if this is a member function
if (DeclaratorUtils.declaratorIsFunction(declarator)) {
const symbol = FunctionCollector.collectMemberFunction(
ctx.className,
fieldName,
declarator,
fieldType,
ctx.sourceFile,
line,
true, // declaration
);
ctx.memberFunctions.push(symbol);
return;
}
// Data field
ClassCollector._collectDataField(fieldName, declarator, fieldType, ctx);
}
/**
* Collect a data field declaration.
*/
private static _collectDataField(
fieldName: string,
declarator: any,
fieldType: string,
ctx: IMemberCollectionContext,
): void {
// Warn if field name conflicts with C-Next reserved property names
Iif (SymbolUtils.isReservedFieldName(fieldName)) {
ctx.warnings.push(
SymbolUtils.getReservedFieldWarning("C++", ctx.className, fieldName),
);
}
// Extract array dimensions if any
const arrayDimensions = DeclaratorUtils.extractArrayDimensions(declarator);
// Add to SymbolTable if provided
Eif (ctx.symbolTable) {
ctx.symbolTable.addStructField(
ctx.className,
fieldName,
fieldType,
arrayDimensions.length > 0 ? arrayDimensions : undefined,
);
}
// Add to fields map if provided
Eif (ctx.fields) {
const fieldInfo: ICppFieldInfo = {
name: fieldName,
type: fieldType,
arrayDimensions:
arrayDimensions.length > 0 ? arrayDimensions : undefined,
};
ctx.fields.set(fieldName, fieldInfo);
}
}
}
export default ClassCollector;
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