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Commit df9e5027 authored by Erik Verbruggen's avatar Erik Verbruggen
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Removed old and unused class.

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src/plugins/qmleditor/navigationtokenfinder.cpp deleted 100644 → 0
+ 0
− 414
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#include "qmljsast_p.h"
#include "qmljsengine_p.h"
#include "navigationtokenfinder.h"
using namespace QmlJS;
using namespace QmlJS::AST;
using namespace DuiEditor;
using namespace DuiEditor::Internal;
void NavigationTokenFinder::operator()(const DuiDocument::Ptr &doc, int position, const Snapshot &snapshot)
{
_doc = doc;
_snapshot = snapshot;
_pos = position;
_scopes.clear();
_linkPosition = -1;
_fileName.clear();
_targetLine = -1;
Node::accept(doc->program(), this);
}
static QStringList buildQualifiedId(QmlJS::AST::FieldMemberExpression *expr)
{
QStringList qId;
if (FieldMemberExpression *baseExpr = cast<FieldMemberExpression*>(expr->base)) {
qId = buildQualifiedId(baseExpr);
} else if (IdentifierExpression *idExpr = cast<IdentifierExpression*>(expr->base)) {
qId.append(idExpr->name->asString());
} else {
return qId;
}
qId.append(expr->name->asString());
return qId;
}
bool NavigationTokenFinder::visit(QmlJS::AST::FieldMemberExpression *ast)
{
if (linkFound())
return false;
if (ast->firstSourceLocation().offset <= _pos && _pos <= ast->lastSourceLocation().end()) {
if (ast->identifierToken.offset <= _pos && _pos <= ast->identifierToken.end()) {
// found it:
_linkPosition = ast->identifierToken.offset;
_linkLength = ast->identifierToken.end() - _linkPosition;
const QStringList qualifiedId(buildQualifiedId(ast));
if (!qualifiedId.isEmpty())
findDeclaration(qualifiedId);
} else {
Node::accept(ast->base, this);
}
return false;
}
return true;
}
bool NavigationTokenFinder::visit(QmlJS::AST::IdentifierExpression *ast)
{
if (linkFound())
return false;
if (ast->identifierToken.offset <= _pos && _pos <= ast->identifierToken.end()) {
_linkPosition = ast->identifierToken.offset;
_linkLength = ast->identifierToken.length;
findDeclaration(QStringList() << ast->name->asString());
}
return false;
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiArrayBinding *ast)
{
if (linkFound())
return false;
Node::accept(ast->members, this);
return false;
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiImportList *)
{
return false;
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiPublicMember *ast)
{
if (linkFound())
return false;
Node::accept(ast->expression, this);
return false;
}
bool NavigationTokenFinder::visit(QmlJS::AST::Block *ast)
{
_scopes.push(ast);
return !linkFound();
}
void NavigationTokenFinder::endVisit(QmlJS::AST::Block *)
{
_scopes.pop();
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiObjectBinding *ast)
{
_scopes.push(ast);
if (!linkFound()) {
checkType(ast->qualifiedTypeNameId);
Node::accept(ast->initializer, this);
}
return false;
}
void NavigationTokenFinder::endVisit(QmlJS::AST::UiObjectBinding *)
{
_scopes.pop();
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiObjectDefinition *ast)
{
_scopes.push(ast);
if (!linkFound()) {
checkType(ast->qualifiedTypeNameId);
Node::accept(ast->initializer, this);
}
return false;
}
void NavigationTokenFinder::endVisit(QmlJS::AST::UiObjectDefinition *)
{
_scopes.pop();
}
void NavigationTokenFinder::checkType(QmlJS::AST::UiQualifiedId *ast)
{
if (ast->identifierToken.offset <= _pos) {
for (UiQualifiedId *iter = ast; iter; iter = iter->next) {
if (_pos <= iter->identifierToken.end()) {
_linkPosition = ast->identifierToken.offset;
QStringList names;
for (UiQualifiedId *iter2 = ast; iter2; iter2 = iter2->next) {
_linkLength = iter2->identifierToken.end() - _linkPosition;
names.append(iter2->name->asString());
}
findTypeDeclaration(names);
return;
}
}
}
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiScriptBinding *ast)
{
if (!linkFound()) {
if (ast->qualifiedId && !ast->qualifiedId->next && ast->qualifiedId->name && ast->qualifiedId->name->asString() == "id")
return false;
else
Node::accept(ast->statement, this);
}
return false;
}
bool NavigationTokenFinder::visit(QmlJS::AST::UiSourceElement * /*ast*/)
{
return false;
}
bool NavigationTokenFinder::findInJS(const QStringList &qualifiedId, QmlJS::AST::Block *block)
{
if (qualifiedId.size() > 1)
return false; // we can only find "simple" JavaScript variables this way
const QString id = qualifiedId[0];
for (StatementList *iter = block->statements; iter; iter = iter->next) {
Statement *stmt = iter->statement;
if (VariableStatement *varStmt = cast<VariableStatement*>(stmt)) {
for (VariableDeclarationList *varIter = varStmt->declarations; varIter; varIter = varIter->next) {
if (varIter->declaration && varIter->declaration->name && varIter->declaration->name->asString() == id) {
rememberLocation(varIter->declaration->identifierToken);
return true;
}
}
}
}
return false;
}
static bool matches(UiQualifiedId *candidate, const QStringList &wanted)
{
UiQualifiedId *iter = candidate;
for (int i = 0; i < wanted.size(); ++i) {
if (!iter)
return false;
if (iter->name->asString() != wanted[i])
return false;
iter = iter->next;
}
return !iter;
}
bool NavigationTokenFinder::findProperty(const QStringList &qualifiedId, QmlJS::AST::UiQualifiedId *typeId, QmlJS::AST::UiObjectMemberList *ast, int scopeLevel)
{
// 1. try the "overridden" properties:
for (UiObjectMemberList *iter = ast; iter; iter = iter->next) {
UiObjectMember *member = iter->member;
if (UiPublicMember *publicMember = cast<UiPublicMember*>(member)) {
if (publicMember->name && qualifiedId.size() == 1 && publicMember->name->asString() == qualifiedId.first()) {
rememberLocation(publicMember->identifierToken);
return true;
}
} else if (UiObjectBinding *objectBinding = cast<UiObjectBinding*>(member)) {
if (matches(objectBinding->qualifiedId, qualifiedId)) {
rememberLocation(objectBinding->qualifiedId->identifierToken);
return true;
}
} else if (UiScriptBinding *scriptBinding = cast<UiScriptBinding*>(member)) {
if (matches(scriptBinding->qualifiedId, qualifiedId)) {
rememberLocation(scriptBinding->qualifiedId->identifierToken);
return true;
}
} else if (UiArrayBinding *arrayBinding = cast<UiArrayBinding*>(member)) {
if (matches(arrayBinding->qualifiedId, qualifiedId)) {
rememberLocation(arrayBinding->qualifiedId->identifierToken);
return true;
}
}
}
// 2. if the property is "parent", go one scope level up:
if (qualifiedId[0] == "parent"){
if (scopeLevel <= 0)
return false;
int newScopeLevel = scopeLevel - 1;
Node *parentScope = _scopes[newScopeLevel];
QStringList newQualifiedId = qualifiedId;
newQualifiedId.removeFirst();
if (UiObjectBinding *binding = cast<UiObjectBinding*>(parentScope)) {
if (newQualifiedId.isEmpty()) {
rememberLocation(binding->qualifiedTypeNameId->identifierToken);
return true;
} else {
return findProperty(newQualifiedId, binding->qualifiedTypeNameId, binding->initializer->members, newScopeLevel);
}
} else if (UiObjectDefinition *definition = cast<UiObjectDefinition*>(parentScope)) {
if (newQualifiedId.isEmpty()) {
rememberLocation(definition->qualifiedTypeNameId->identifierToken);
return true;
} else {
return findProperty(newQualifiedId, definition->qualifiedTypeNameId, definition->initializer->members, newScopeLevel);
}
} else {
return false;
}
}
// 3. if the type is a custom type, search properties there:
{
// TODO: when things around the "import as" clear up a bit, revise this resolving:
QStringList qualifiedTypeId;
for (UiQualifiedId *iter = typeId; iter; iter = iter->next)
qualifiedTypeId.append(iter->name->asString());
DuiDocument::Ptr doc = findCustomType(qualifiedTypeId);
if (!doc.isNull() && doc->isParsedCorrectly()) {
UiProgram *prog = doc->program();
if (prog && prog->members && prog->members->member) {
if (UiObjectBinding *binding = cast<UiObjectBinding*>(prog->members->member)) {
findProperty(qualifiedId, binding->qualifiedTypeNameId, binding->initializer->members, -1);
} else if (UiObjectDefinition *definition = cast<UiObjectDefinition*>(prog->members->member)) {
findProperty(qualifiedId, definition->qualifiedTypeNameId, definition->initializer->members, -1);
}
}
}
}
// all failed, so:
return false;
}
void NavigationTokenFinder::findAsId(const QStringList &qualifiedId)
{
const DuiDocument::IdTable ids = _doc->ids();
if (ids.contains(qualifiedId.first())) {
QPair<SourceLocation, Node*> idInfo = ids[qualifiedId.first()];
if (qualifiedId.size() == 1) {
rememberLocation(idInfo.first);
} else {
Node *parent = idInfo.second;
QStringList newQualifiedId(qualifiedId);
newQualifiedId.removeFirst();
if (UiObjectBinding *binding = cast<UiObjectBinding*>(parent)) {
findProperty(newQualifiedId, binding->qualifiedTypeNameId, binding->initializer->members, -1);
} else if (UiObjectDefinition *definition = cast<UiObjectDefinition*>(parent)) {
findProperty(newQualifiedId, definition->qualifiedTypeNameId, definition->initializer->members, -1);
}
}
}
}
void NavigationTokenFinder::findDeclaration(const QStringList &qualifiedId, int scopeLevel)
{
Node *scope = _scopes[scopeLevel];
if (Block *block = cast<Block*>(scope)) {
if (!findInJS(qualifiedId, block)) // continue searching the parent scope:
findDeclaration(qualifiedId, scopeLevel - 1);
} else if (UiObjectBinding *binding = cast<UiObjectBinding*>(scope)) {
if (findProperty(qualifiedId, binding->qualifiedTypeNameId, binding->initializer->members, scopeLevel)) {
return;
} else {
findAsId(qualifiedId);
}
} else if (UiObjectDefinition *definition = cast<UiObjectDefinition*>(scope)) {
if (findProperty(qualifiedId, definition->qualifiedTypeNameId, definition->initializer->members, scopeLevel)) {
return;
} else {
findAsId(qualifiedId);
}
} else {
Q_ASSERT(!"Unknown scope type");
}
}
void NavigationTokenFinder::findDeclaration(const QStringList &id)
{
if (id.isEmpty())
return;
findDeclaration(id, _scopes.size() - 1);
}
void NavigationTokenFinder::findTypeDeclaration(const QStringList &id)
{
DuiDocument::Ptr doc = findCustomType(id);
if (doc.isNull() || !doc->isParsedCorrectly())
return;
UiProgram *prog = doc->program();
if (!prog || !(prog->members) || !(prog->members->member))
return;
_fileName = doc->fileName();
const SourceLocation loc = prog->members->member->firstSourceLocation();
_targetLine = loc.startLine;
_targetColumn = loc.startColumn;
}
void NavigationTokenFinder::rememberLocation(const QmlJS::AST::SourceLocation &loc)
{
_fileName = _doc->fileName();
_targetLine = loc.startLine;
_targetColumn = loc.startColumn;
}
DuiDocument::Ptr NavigationTokenFinder::findCustomType(const QStringList& qualifiedId) const
{
// TODO: when things around the "import as" clear up a bit, revise this resolving:
UiProgram *program = _doc->program();
if (!program)
return DuiDocument::Ptr();
UiImportList *imports = program->imports;
if (!imports)
return DuiDocument::Ptr();
for (UiImportList *iter = imports; iter; iter = iter->next) {
if (!(iter->import))
continue;
UiImport *import = iter->import;
if (!(import->fileName))
continue;
const QString path = import->fileName->asString();
const QMap<QString, DuiDocument::Ptr> compToDoc = _snapshot.componentsDefinedByImportedDocuments(_doc, path);
if (compToDoc.contains(qualifiedId[0]))
return compToDoc[qualifiedId[0]];
}
return DuiDocument::Ptr();
}
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