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* C++ Symbol Collector
* Extracts symbols from C++ parse trees for the unified symbol table
*/
/* eslint-disable @typescript-eslint/no-explicit-any */
import {
CPP14Parser,
ClassSpecifierContext,
} from "../parser/cpp/grammar/CPP14Parser";
import ISymbol from "../../../utils/types/ISymbol";
import ESymbolKind from "../../../utils/types/ESymbolKind";
import ESourceLanguage from "../../../utils/types/ESourceLanguage";
import SymbolTable from "./SymbolTable";
import SymbolUtils from "./SymbolUtils";
import SymbolCollectorContext from "./SymbolCollectorContext";
import ICollectorContext from "./types/ICollectorContext";
// Import context types
type TranslationUnitContext = ReturnType<CPP14Parser["translationUnit"]>;
/**
* Collects symbols from a C++ parse tree
*/
class CppSymbolCollector {
private readonly ctx: ICollectorContext;
private currentNamespace: string | undefined;
constructor(sourceFile: string, symbolTable?: SymbolTable) {
this.ctx = SymbolCollectorContext.create(sourceFile, symbolTable);
}
/**
* Get warnings generated during symbol collection
*/
getWarnings(): string[] {
return SymbolCollectorContext.getWarnings(this.ctx);
}
// ========================================================================
// Symbol Creation Helpers (Issue #707: Reduce code duplication)
// ========================================================================
/**
* Add a class/struct symbol to the symbol table.
*/
private _addClassSymbol(fullName: string, line: number): void {
SymbolCollectorContext.addSymbol(this.ctx, {
name: fullName,
kind: ESymbolKind.Class,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
parent: this.currentNamespace,
});
}
/**
* Add a member function symbol to the symbol table.
*/
private _addMemberFunctionSymbol(
className: string,
funcName: string,
returnType: string,
params: Array<{
name: string;
type: string;
isConst: boolean;
isArray: boolean;
}>,
line: number,
isDeclaration: boolean,
): void {
SymbolCollectorContext.addSymbol(this.ctx, {
name: `${className}::${funcName}`,
kind: ESymbolKind.Function,
type: returnType,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
isDeclaration: isDeclaration || undefined,
parent: className,
parameters: params.length > 0 ? params : undefined,
});
}
/**
* Collect all symbols from a C++ translation unit
*/
collect(tree: TranslationUnitContext): ISymbol[] {
SymbolCollectorContext.reset(this.ctx);
this.currentNamespace = undefined;
if (!tree) {
return SymbolCollectorContext.getSymbols(this.ctx);
}
const declSeq = tree.declarationseq?.();
if (!declSeq) {
return SymbolCollectorContext.getSymbols(this.ctx);
}
for (const decl of declSeq.declaration()) {
this.collectDeclaration(decl);
}
return SymbolCollectorContext.getSymbols(this.ctx);
}
private collectDeclaration(decl: any): void {
const line = decl.start?.line ?? 0;
// Function definition
const funcDef = decl.functionDefinition?.();
if (funcDef) {
this.collectFunctionDefinition(funcDef, line);
return;
}
// Namespace definition
const nsDef = decl.namespaceDefinition?.();
if (nsDef) {
this.collectNamespaceDefinition(nsDef, line);
return;
}
// Template declaration
const templDecl = decl.templateDeclaration?.();
if (templDecl) {
// Skip template declarations for now - complex to handle
return;
}
// Block declaration (simpleDeclaration, etc.)
const blockDecl = decl.blockDeclaration?.();
if (blockDecl) {
this.collectBlockDeclaration(blockDecl, line);
}
}
private collectFunctionDefinition(funcDef: any, line: number): void {
const declarator = funcDef.declarator?.();
Iif (!declarator) return;
const name = this.extractDeclaratorName(declarator);
Iif (!name) return;
// Get return type
const declSpecSeq = funcDef.declSpecifierSeq?.();
const returnType = declSpecSeq
? this.extractTypeFromDeclSpecSeq(declSpecSeq)
: "void";
const fullName = this.currentNamespace
? `${this.currentNamespace}::${name}`
: name;
// Issue #322: Extract function parameters
const params = this.extractFunctionParameters(declarator);
SymbolCollectorContext.addSymbol(this.ctx, {
name: fullName,
kind: ESymbolKind.Function,
type: returnType,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
parent: this.currentNamespace,
parameters: params.length > 0 ? params : undefined,
});
}
private collectNamespaceDefinition(nsDef: any, line: number): void {
const identifier = nsDef.Identifier?.();
const originalNs = nsDef.originalNamespaceName?.();
const name = identifier?.getText() ?? originalNs?.getText();
if (!name) return;
SymbolCollectorContext.addSymbol(this.ctx, {
name,
kind: ESymbolKind.Namespace,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
});
// Process namespace body
const savedNamespace = this.currentNamespace;
this.currentNamespace = this.currentNamespace
? `${this.currentNamespace}::${name}`
: name;
const body = nsDef.declarationseq?.();
if (body) {
for (const decl of body.declaration()) {
this.collectDeclaration(decl);
}
}
this.currentNamespace = savedNamespace;
}
private collectBlockDeclaration(blockDecl: any, line: number): void {
// Simple declaration (variables, typedefs, class declarations)
const simpleDecl = blockDecl.simpleDeclaration?.();
if (simpleDecl) {
this.collectSimpleDeclaration(simpleDecl, line);
}
// Using declaration
const usingDecl = blockDecl.usingDeclaration?.();
Iif (usingDecl) {
// Skip using declarations for now
}
// Alias declaration (using X = Y)
const aliasDecl = blockDecl.aliasDeclaration?.();
if (aliasDecl) {
const identifier = aliasDecl.Identifier?.();
Eif (identifier) {
SymbolCollectorContext.addSymbol(this.ctx, {
name: identifier.getText(),
kind: ESymbolKind.Type,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
parent: this.currentNamespace,
});
}
}
}
/**
* Process type specifiers in a declaration, collecting classes and enums.
* Returns anonymous class specifier if found (for typedef handling).
*/
private processTypeSpecifiers(
declSpecSeq: any,
line: number,
): ClassSpecifierContext | null {
let anonymousClassSpec: ClassSpecifierContext | null = null;
for (const spec of declSpecSeq.declSpecifier?.() ?? []) {
const typeSpec = spec.typeSpecifier?.();
if (!typeSpec) continue;
const classSpec = typeSpec.classSpecifier?.();
if (classSpec) {
const result = this.handleClassSpecInDecl(classSpec, line);
if (result) {
anonymousClassSpec = result;
}
}
const enumSpec = typeSpec.enumSpecifier?.();
if (enumSpec) {
this.collectEnumSpecifier(enumSpec, line);
}
}
return anonymousClassSpec;
}
/**
* Handle a class specifier in a declaration.
* Returns the class spec if it's anonymous (for typedef handling).
*/
private handleClassSpecInDecl(
classSpec: any,
line: number,
): ClassSpecifierContext | null {
const classHead = classSpec.classHead?.();
const classHeadName = classHead?.classHeadName?.();
const className = classHeadName?.className?.();
const identifier = className?.Identifier?.();
if (identifier?.getText()) {
// Named struct - collect normally
this.collectClassSpecifier(classSpec, line);
return null;
}
// Issue #342: Anonymous struct - return for typedef handling
return classSpec;
}
/**
* Issue #342: Handle typedef of anonymous struct.
* Returns true if handled (caller should skip normal processing).
*/
private tryCollectAnonymousTypedef(
anonymousClassSpec: ClassSpecifierContext,
fullName: string,
line: number,
): boolean {
Iif (!this.ctx.symbolTable) return false;
const memberSpec = anonymousClassSpec.memberSpecification?.();
Iif (!memberSpec) return false;
this._addClassSymbol(fullName, line);
this.collectClassMembers(fullName, memberSpec);
return true;
}
/**
* Process a single declarator (variable or function).
*/
private collectDeclarator(
declarator: any,
baseType: string,
line: number,
anonymousClassSpec: ClassSpecifierContext | null,
): void {
const name = this.extractDeclaratorName(declarator);
Iif (!name) return;
const isFunction = this.declaratorIsFunction(declarator);
const fullName = this.currentNamespace
? `${this.currentNamespace}::${name}`
: name;
// Issue #342: Handle anonymous struct typedef
if (anonymousClassSpec) {
Eif (this.tryCollectAnonymousTypedef(anonymousClassSpec, fullName, line)) {
return;
}
}
// Issue #322: Extract parameters for function declarations
const params = isFunction ? this.extractFunctionParameters(declarator) : [];
SymbolCollectorContext.addSymbol(this.ctx, {
name: fullName,
kind: isFunction ? ESymbolKind.Function : ESymbolKind.Variable,
type: baseType,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
isDeclaration: isFunction,
parent: this.currentNamespace,
parameters: params.length > 0 ? params : undefined,
});
}
private collectSimpleDeclaration(simpleDecl: any, line: number): void {
const declSpecSeq = simpleDecl.declSpecifierSeq?.();
if (!declSpecSeq) return;
const baseType = this.extractTypeFromDeclSpecSeq(declSpecSeq);
const anonymousClassSpec = this.processTypeSpecifiers(declSpecSeq, line);
// Collect declarators (variables, function prototypes)
const initDeclList = simpleDecl.initDeclaratorList?.();
if (!initDeclList) return;
for (const initDecl of initDeclList.initDeclarator()) {
const declarator = initDecl.declarator?.();
Eif (declarator) {
this.collectDeclarator(declarator, baseType, line, anonymousClassSpec);
}
}
}
private collectClassSpecifier(classSpec: any, line: number): void {
const classHead = classSpec.classHead?.();
Iif (!classHead) return;
const classHeadName = classHead.classHeadName?.();
Iif (!classHeadName) return;
const className = classHeadName.className?.();
Iif (!className) return;
const identifier = className.Identifier?.();
const name = identifier?.getText();
Iif (!name) return;
const fullName = this.currentNamespace
? `${this.currentNamespace}::${name}`
: name;
this._addClassSymbol(fullName, line);
// Extract struct/class field information if SymbolTable is available
if (this.ctx.symbolTable) {
const memberSpec = classSpec.memberSpecification?.();
Eif (memberSpec) {
this.collectClassMembers(fullName, memberSpec);
}
}
}
/**
* Collect class/struct member fields
*/
private collectClassMembers(className: string, memberSpec: any): void {
// Iterate through member declarations
for (const memberDecl of memberSpec.memberdeclaration?.() ?? []) {
this.collectMemberDeclaration(className, memberDecl);
}
}
/**
* Collect a single member declaration
*/
private collectMemberDeclaration(className: string, memberDecl: any): void {
const line = memberDecl.start?.line ?? 0;
// Issue #322: Check for inline function definition within the class
const funcDef = memberDecl.functionDefinition?.();
if (funcDef) {
this._collectInlineFunctionDef(className, funcDef, line);
return;
}
// Get member declaration list (for data members and function declarations)
const declSpecSeq = memberDecl.declSpecifierSeq?.();
Iif (!declSpecSeq) return;
const fieldType = this.extractTypeFromDeclSpecSeq(declSpecSeq);
// Get declarator list
const memberDeclList = memberDecl.memberDeclaratorList?.();
if (!memberDeclList) return;
for (const memberDeclarator of memberDeclList.memberDeclarator?.() ?? []) {
this._collectMemberDeclarator(
className,
memberDeclarator,
fieldType,
line,
);
}
}
/**
* Collect an inline function definition within a class
*/
private _collectInlineFunctionDef(
className: string,
funcDef: any,
line: number,
): void {
const declarator = funcDef.declarator?.();
Iif (!declarator) return;
const funcName = this.extractDeclaratorName(declarator);
if (!funcName) return;
const declSpecSeq = funcDef.declSpecifierSeq?.();
const returnType = declSpecSeq
? this.extractTypeFromDeclSpecSeq(declSpecSeq)
: "void";
const params = this.extractFunctionParameters(declarator);
this._addMemberFunctionSymbol(
className,
funcName,
returnType,
params,
line,
false,
);
}
/**
* Collect a single member declarator (function or data field)
*/
private _collectMemberDeclarator(
className: string,
memberDeclarator: any,
fieldType: string,
line: number,
): void {
const declarator = memberDeclarator.declarator?.();
Iif (!declarator) return;
const fieldName = this.extractDeclaratorName(declarator);
if (!fieldName) return;
// Issue #322: Collect member functions with their parameters
if (this.declaratorIsFunction(declarator)) {
this._collectMemberFunction(
className,
fieldName,
declarator,
fieldType,
line,
);
return;
}
this._collectDataField(className, fieldName, declarator, fieldType);
}
/**
* Collect a member function declaration
*/
private _collectMemberFunction(
className: string,
funcName: string,
declarator: any,
returnType: string,
line: number,
): void {
const params = this.extractFunctionParameters(declarator);
this._addMemberFunctionSymbol(
className,
funcName,
returnType,
params,
line,
true,
);
}
/**
* Collect a data field declaration
*/
private _collectDataField(
className: string,
fieldName: string,
declarator: any,
fieldType: string,
): void {
// Warn if field name conflicts with C-Next reserved property names
if (SymbolUtils.isReservedFieldName(fieldName)) {
SymbolCollectorContext.addWarning(
this.ctx,
SymbolUtils.getReservedFieldWarning("C++", className, fieldName),
);
}
// Extract array dimensions if any
const arrayDimensions = this.extractArrayDimensions(declarator);
// Add to SymbolTable
this.ctx.symbolTable!.addStructField(
className,
fieldName,
fieldType,
arrayDimensions.length > 0 ? arrayDimensions : undefined,
);
}
/**
* Extract array dimensions from a declarator
*/
private extractArrayDimensions(declarator: any): number[] {
const dimensions: number[] = [];
// For C++, we need to check both pointer and no-pointer declarators
const ptrDecl = declarator.pointerDeclarator?.();
Eif (ptrDecl) {
const noPtr = ptrDecl.noPointerDeclarator?.();
Eif (noPtr) {
return this.extractArrayDimensionsFromNoPtr(noPtr);
}
}
const noPtr = declarator.noPointerDeclarator?.();
Iif (noPtr) {
return this.extractArrayDimensionsFromNoPtr(noPtr);
}
return dimensions;
}
/**
* Extract array dimensions from a noPointerDeclarator
*/
private extractArrayDimensionsFromNoPtr(noPtr: any): number[] {
// Use shared utility for regex-based extraction
return SymbolUtils.parseArrayDimensions(noPtr.getText());
}
private collectEnumSpecifier(enumSpec: any, line: number): void {
const enumHead = enumSpec.enumHead?.();
Iif (!enumHead) return;
const identifier = enumHead.Identifier?.();
Iif (!identifier) return;
const name = identifier.getText();
const fullName = this.currentNamespace
? `${this.currentNamespace}::${name}`
: name;
SymbolCollectorContext.addSymbol(this.ctx, {
name: fullName,
kind: ESymbolKind.Enum,
sourceFile: this.ctx.sourceFile,
sourceLine: line,
sourceLanguage: ESourceLanguage.Cpp,
isExported: true,
parent: this.currentNamespace,
});
// Issue #208: Extract enum backing type for typed enums (e.g., enum EPressureType : uint8_t)
if (this.ctx.symbolTable) {
const enumbase = enumHead.enumbase?.();
if (enumbase) {
const typeSpecSeq = enumbase.typeSpecifierSeq?.();
Eif (typeSpecSeq) {
const typeName = typeSpecSeq.getText();
const bitWidth = this.getTypeWidth(typeName);
Eif (bitWidth > 0) {
this.ctx.symbolTable.addEnumBitWidth(fullName, bitWidth);
}
}
}
}
}
/**
* Issue #208: Map C/C++ type names to their bit widths
* Delegates to shared utility for consistent type width mapping
*/
private getTypeWidth(typeName: string): number {
return SymbolUtils.getTypeWidth(typeName);
}
// Helper methods
private extractDeclaratorName(declarator: any): string | null {
// Pointer declarator -> noPointerDeclarator
const ptrDecl = declarator.pointerDeclarator?.();
Eif (ptrDecl) {
const noPtr = ptrDecl.noPointerDeclarator?.();
Eif (noPtr) {
return this.extractNoPointerDeclaratorName(noPtr);
}
}
// No pointer declarator
const noPtr = declarator.noPointerDeclarator?.();
Iif (noPtr) {
return this.extractNoPointerDeclaratorName(noPtr);
}
return null;
}
private extractNoPointerDeclaratorName(noPtr: any): string | null {
const declId = noPtr.declaratorid?.();
if (declId) {
const idExpr = declId.idExpression?.();
Eif (idExpr) {
const unqualId = idExpr.unqualifiedId?.();
Eif (unqualId) {
const identifier = unqualId.Identifier?.();
if (identifier) {
return identifier.getText();
}
}
}
}
// Recursive case
const innerNoPtr = noPtr.noPointerDeclarator?.();
if (innerNoPtr) {
return this.extractNoPointerDeclaratorName(innerNoPtr);
}
return null;
}
private declaratorIsFunction(declarator: any): boolean {
const ptrDecl = declarator.pointerDeclarator?.();
Eif (ptrDecl) {
const noPtr = ptrDecl.noPointerDeclarator?.();
if (noPtr?.parametersAndQualifiers?.()) {
return true;
}
}
const noPtr = declarator.noPointerDeclarator?.();
Iif (noPtr?.parametersAndQualifiers?.()) {
return true;
}
return false;
}
/**
* Issue #322: Extract function parameters from a declarator.
* Returns an array of parameter info objects with name, type, and pointer flag.
*/
private extractFunctionParameters(declarator: any): Array<{
name: string;
type: string;
isConst: boolean;
isArray: boolean;
}> {
const params: Array<{
name: string;
type: string;
isConst: boolean;
isArray: boolean;
}> = [];
// Find parametersAndQualifiers from the declarator
let paramsAndQuals: any = null;
const ptrDecl = declarator.pointerDeclarator?.();
Eif (ptrDecl) {
const noPtr = ptrDecl.noPointerDeclarator?.();
paramsAndQuals = noPtr?.parametersAndQualifiers?.();
}
Iif (!paramsAndQuals) {
const noPtr = declarator.noPointerDeclarator?.();
paramsAndQuals = noPtr?.parametersAndQualifiers?.();
}
Iif (!paramsAndQuals) {
return params;
}
// Get parameterDeclarationClause
const paramClause = paramsAndQuals.parameterDeclarationClause?.();
if (!paramClause) {
return params;
}
// Get parameterDeclarationList
const paramList = paramClause.parameterDeclarationList?.();
Iif (!paramList) {
return params;
}
// Iterate over parameterDeclaration entries
for (const paramDecl of paramList.parameterDeclaration?.() ?? []) {
const paramInfo = this.extractParameterInfo(paramDecl);
Eif (paramInfo) {
params.push(paramInfo);
}
}
return params;
}
/**
* Issue #322: Extract type and name info from a single parameter declaration.
*/
private extractParameterInfo(paramDecl: any): {
name: string;
type: string;
isConst: boolean;
isArray: boolean;
} | null {
// Get the type from declSpecifierSeq
const declSpecSeq = paramDecl.declSpecifierSeq?.();
Iif (!declSpecSeq) {
return null;
}
let baseType = this.extractTypeFromDeclSpecSeq(declSpecSeq);
let isConst = false;
let isPointer = false;
// Check for const qualifier
const declText = declSpecSeq.getText();
if (declText.includes("const")) {
isConst = true;
}
// Check for pointer in declarator or abstractDeclarator
const declarator = paramDecl.declarator?.();
const abstractDecl = paramDecl.abstractDeclarator?.();
if (declarator) {
// Check if declarator has pointer operator
if (this.declaratorHasPointer(declarator)) {
isPointer = true;
}
}
if (abstractDecl) {
// Abstract declarator (no name) - check for pointer
Eif (this.abstractDeclaratorHasPointer(abstractDecl)) {
isPointer = true;
}
}
// If pointer, append * to the type
if (isPointer) {
baseType = baseType + "*";
}
// Get parameter name (may be empty for abstract declarators)
let paramName = "";
if (declarator) {
const name = this.extractDeclaratorName(declarator);
if (name) {
paramName = name;
}
}
return {
name: paramName,
type: baseType,
isConst,
isArray: false, // Could be enhanced to detect arrays
};
}
/**
* Issue #322: Check if a declarator contains a pointer operator.
*/
private declaratorHasPointer(declarator: any): boolean {
const ptrDecl = declarator.pointerDeclarator?.();
Eif (ptrDecl) {
// Check for pointerOperator children
const ptrOps = ptrDecl.pointerOperator?.();
if (ptrOps && ptrOps.length > 0) {
return true;
}
// Also check getText for *
if (ptrDecl.getText().includes("*")) {
return true;
}
}
return false;
}
/**
* Issue #322: Check if an abstract declarator (pointer without name) contains a pointer.
*/
private abstractDeclaratorHasPointer(abstractDecl: any): boolean {
// Check for pointerAbstractDeclarator
const ptrAbstract = abstractDecl.pointerAbstractDeclarator?.();
Eif (ptrAbstract) {
const ptrOps = ptrAbstract.pointerOperator?.();
Eif (ptrOps && ptrOps.length > 0) {
return true;
}
if (ptrAbstract.getText().includes("*")) {
return true;
}
}
// Simple check for * in the text
if (abstractDecl.getText().includes("*")) {
return true;
}
return false;
}
private extractTypeFromDeclSpecSeq(declSpecSeq: any): string {
const parts: string[] = [];
for (const spec of declSpecSeq.declSpecifier?.() ?? []) {
const typeSpec = spec.typeSpecifier?.();
if (typeSpec) {
const trailingType = typeSpec.trailingTypeSpecifier?.();
if (trailingType) {
const simpleType = trailingType.simpleTypeSpecifier?.();
if (simpleType) {
parts.push(simpleType.getText());
}
}
}
}
return parts.join(" ") || "int";
}
}
export default CppSymbolCollector;
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