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* CppResolver - Orchestrates symbol collection from C++ parse trees.
*
* Uses composable collectors to extract symbols from different C++ constructs.
* Produces TCppSymbol instances (discriminated union of C++ symbol types).
*/
/* eslint-disable @typescript-eslint/no-explicit-any */
import { CPP14Parser } from "../../parser/cpp/grammar/CPP14Parser";
import TCppSymbol from "../../../types/symbols/cpp/TCppSymbol";
import SymbolTable from "../SymbolTable";
import NamespaceCollector from "./collectors/NamespaceCollector";
import EnumCollector from "./collectors/EnumCollector";
import TypeAliasCollector from "./collectors/TypeAliasCollector";
import FunctionCollector from "./collectors/FunctionCollector";
import ClassCollector from "./collectors/ClassCollector";
import VariableCollector from "./collectors/VariableCollector";
import DeclaratorUtils from "./utils/DeclaratorUtils";
// Import context types
type TranslationUnitContext = ReturnType<CPP14Parser["translationUnit"]>;
/**
* Result of resolving C++ symbols.
*/
interface ICppResolverResult {
symbols: TCppSymbol[];
warnings: string[];
}
/**
* Internal context for declaration processing.
*/
interface ICppDeclarationContext {
readonly sourceFile: string;
readonly currentNamespace: string | undefined;
readonly symbolTable: SymbolTable | undefined;
readonly symbols: TCppSymbol[];
readonly warnings: string[];
}
class CppResolver {
/**
* Resolve all symbols from a C++ translation unit.
*
* @param tree The translation unit context from the parser
* @param sourceFile Source file path
* @param symbolTable Optional symbol table for storing struct fields, enum bit widths
* @returns Result containing symbols and warnings
*/
static resolve(
tree: TranslationUnitContext,
sourceFile: string,
symbolTable?: SymbolTable,
): ICppResolverResult {
const symbols: TCppSymbol[] = [];
const warnings: string[] = [];
Iif (!tree) {
return { symbols, warnings };
}
const declSeq = tree.declarationseq?.();
Iif (!declSeq) {
return { symbols, warnings };
}
const ctx: ICppDeclarationContext = {
sourceFile,
currentNamespace: undefined,
symbolTable,
symbols,
warnings,
};
for (const decl of declSeq.declaration()) {
CppResolver._collectDeclaration(decl, ctx);
}
return { symbols, warnings };
}
/**
* Collect symbols from a single declaration.
*/
private static _collectDeclaration(
decl: any,
ctx: ICppDeclarationContext,
): void {
const line = decl.start?.line ?? 0;
// Function definition
const funcDef = decl.functionDefinition?.();
if (funcDef) {
const symbol = FunctionCollector.collectDefinition(
funcDef,
ctx.sourceFile,
line,
ctx.currentNamespace,
);
Eif (symbol) {
ctx.symbols.push(symbol);
}
return;
}
// Namespace definition
const nsDef = decl.namespaceDefinition?.();
if (nsDef) {
CppResolver._collectNamespaceDefinition(nsDef, line, ctx);
return;
}
// Template declaration - skip for now (complex to handle)
const templDecl = decl.templateDeclaration?.();
Iif (templDecl) {
return;
}
// Block declaration (simpleDeclaration, etc.)
const blockDecl = decl.blockDeclaration?.();
if (blockDecl) {
CppResolver._collectBlockDeclaration(blockDecl, line, ctx);
}
}
/**
* Collect symbols from a namespace definition.
*/
private static _collectNamespaceDefinition(
nsDef: any,
line: number,
ctx: ICppDeclarationContext,
): void {
const nsSymbol = NamespaceCollector.collect(
nsDef,
ctx.sourceFile,
line,
ctx.currentNamespace,
);
Eif (nsSymbol) {
ctx.symbols.push(nsSymbol);
}
// Process namespace body with updated namespace
const newNamespace = NamespaceCollector.getFullNamespaceName(
nsDef,
ctx.currentNamespace,
);
const body = nsDef.declarationseq?.();
if (body) {
const nestedCtx: ICppDeclarationContext = {
...ctx,
currentNamespace: newNamespace,
};
for (const decl of body.declaration()) {
CppResolver._collectDeclaration(decl, nestedCtx);
}
}
}
/**
* Collect symbols from a block declaration.
*/
private static _collectBlockDeclaration(
blockDecl: any,
line: number,
ctx: ICppDeclarationContext,
): void {
// Simple declaration (variables, typedefs, class declarations)
const simpleDecl = blockDecl.simpleDeclaration?.();
if (simpleDecl) {
CppResolver._collectSimpleDeclaration(simpleDecl, line, ctx);
}
// Alias declaration (using X = Y)
const aliasDecl = blockDecl.aliasDeclaration?.();
if (aliasDecl) {
const symbol = TypeAliasCollector.collect(
aliasDecl,
ctx.sourceFile,
line,
ctx.currentNamespace,
);
Eif (symbol) {
ctx.symbols.push(symbol);
}
}
}
/**
* Collect symbols from a simple declaration.
*/
private static _collectSimpleDeclaration(
simpleDecl: any,
line: number,
ctx: ICppDeclarationContext,
): void {
const declSpecSeq = simpleDecl.declSpecifierSeq?.();
Iif (!declSpecSeq) return;
const baseType = DeclaratorUtils.extractTypeFromDeclSpecSeq(declSpecSeq);
// Process type specifiers (classes, enums)
const anonymousClassSpec = CppResolver._processTypeSpecifiers(
declSpecSeq,
line,
ctx,
);
// Collect declarators (variables, function prototypes)
const initDeclList = simpleDecl.initDeclaratorList?.();
if (!initDeclList) return;
for (const initDecl of initDeclList.initDeclarator()) {
const declarator = initDecl.declarator?.();
Eif (declarator) {
CppResolver._collectDeclarator(
declarator,
baseType,
line,
ctx,
anonymousClassSpec,
);
}
}
}
/**
* Process type specifiers in a declaration, collecting classes and enums.
* Returns anonymous class specifier if found (for typedef handling).
*/
private static _processTypeSpecifiers(
declSpecSeq: any,
line: number,
ctx: ICppDeclarationContext,
): any {
let anonymousClassSpec: any = null;
for (const spec of declSpecSeq.declSpecifier?.() ?? []) {
const typeSpec = spec.typeSpecifier?.();
Iif (!typeSpec) continue;
const classSpec = typeSpec.classSpecifier?.();
if (classSpec) {
const result = CppResolver._handleClassSpecInDecl(classSpec, line, ctx);
if (result) {
anonymousClassSpec = result;
}
}
const enumSpec = typeSpec.enumSpecifier?.();
if (enumSpec) {
const enumSymbol = EnumCollector.collect(
enumSpec,
ctx.sourceFile,
line,
ctx.currentNamespace,
ctx.symbolTable,
);
Eif (enumSymbol) {
ctx.symbols.push(enumSymbol);
}
}
}
return anonymousClassSpec;
}
/**
* Handle a class specifier in a declaration.
* Returns the class spec if it's anonymous (for typedef handling).
*/
private static _handleClassSpecInDecl(
classSpec: any,
line: number,
ctx: ICppDeclarationContext,
): any {
const classHead = classSpec.classHead?.();
const classHeadName = classHead?.classHeadName?.();
const className = classHeadName?.className?.();
const identifier = className?.Identifier?.();
if (identifier?.getText()) {
// Named struct - collect normally
const result = ClassCollector.collect(
classSpec,
ctx.sourceFile,
line,
ctx.currentNamespace,
ctx.symbolTable,
);
Eif (result) {
ctx.symbols.push(result.classSymbol, ...result.memberFunctions);
ctx.warnings.push(...result.warnings);
}
return null;
}
// Anonymous struct - return for typedef handling
return classSpec;
}
/**
* Process a single declarator (variable or function).
*/
private static _collectDeclarator(
declarator: any,
baseType: string,
line: number,
ctx: ICppDeclarationContext,
anonymousClassSpec: any,
): void {
const name = DeclaratorUtils.extractDeclaratorName(declarator);
Iif (!name) return;
const isFunction = DeclaratorUtils.declaratorIsFunction(declarator);
const fullName = ctx.currentNamespace
? `${ctx.currentNamespace}::${name}`
: name;
// Handle anonymous struct typedef
if (anonymousClassSpec && ctx.symbolTable) {
const result = ClassCollector.collectAnonymousTypedef(
anonymousClassSpec,
fullName,
ctx.sourceFile,
line,
ctx.symbolTable,
);
Eif (result) {
ctx.symbols.push(result.classSymbol, ...result.memberFunctions);
ctx.warnings.push(...result.warnings);
return;
}
}
if (isFunction) {
const funcSymbol = FunctionCollector.collectDeclaration(
declarator,
baseType,
ctx.sourceFile,
line,
ctx.currentNamespace,
);
Eif (funcSymbol) {
ctx.symbols.push(funcSymbol);
}
} else {
const varSymbol = VariableCollector.collect(
declarator,
baseType,
ctx.sourceFile,
line,
ctx.currentNamespace,
);
Eif (varSymbol) {
ctx.symbols.push(varSymbol);
}
}
}
}
export default CppResolver;
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