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#include "yql_ast_annotation.h"
#include <util/string/printf.h>
#include <util/string/split.h>
#include <util/string/cast.h>
#include <util/string/builder.h>
#include <library/cpp/containers/stack_vector/stack_vec.h>
namespace NYql {
namespace {
TAstNode* AnnotateNodePosition(TAstNode& node, TMemoryPool& pool) {
auto newPosition = node.GetPosition();
TAstNode* pos = PositionAsNode(node.GetPosition(), pool);
TAstNode* shallowClone = &node;
if (node.IsList()) {
TSmallVec<TAstNode*> listChildren(node.GetChildrenCount());
for (ui32 index = 0; index < node.GetChildrenCount(); ++index) {
listChildren[index] = AnnotateNodePosition(*node.GetChild(index), pool);
}
shallowClone = TAstNode::NewList(node.GetPosition(), listChildren.data(), listChildren.size(), pool);
}
return TAstNode::NewList(newPosition, pool, pos, shallowClone);
}
TAstNode* RemoveNodeAnnotations(TAstNode& node, TMemoryPool& pool) {
if (!node.IsList())
return nullptr;
if (node.GetChildrenCount() == 0)
return nullptr;
auto lastNode = node.GetChild(node.GetChildrenCount() - 1);
auto res = lastNode;
if (lastNode->IsList()) {
TSmallVec<TAstNode*> listChildren(lastNode->GetChildrenCount());
for (ui32 index = 0; index < lastNode->GetChildrenCount(); ++index) {
auto item = RemoveNodeAnnotations(*lastNode->GetChild(index), pool);
if (!item)
return nullptr;
listChildren[index] = item;
}
res = TAstNode::NewList(lastNode->GetPosition(), listChildren.data(), listChildren.size(), pool);
}
return res;
}
TAstNode* ExtractNodeAnnotations(TAstNode& node, TAnnotationNodeMap& annotations, TMemoryPool& pool) {
if (!node.IsList())
return nullptr;
if (node.GetChildrenCount() == 0)
return nullptr;
auto lastNode = node.GetChild(node.GetChildrenCount() - 1);
auto res = lastNode;
if (lastNode->IsList()) {
TSmallVec<TAstNode*> listChildren(lastNode->GetChildrenCount());
for (ui32 index = 0; index < lastNode->GetChildrenCount(); ++index) {
auto item = ExtractNodeAnnotations(*lastNode->GetChild(index), annotations, pool);
if (!item)
return nullptr;
listChildren[index] = item;
}
res = TAstNode::NewList(lastNode->GetPosition(), listChildren.data(), listChildren.size(), pool);
}
auto& v = annotations[res];
v.resize(node.GetChildrenCount() - 1);
for (ui32 index = 0; index + 1 < node.GetChildrenCount(); ++index) {
v[index] = node.GetChild(index);
}
return res;
}
TAstNode* ApplyNodePositionAnnotations(TAstNode& node, ui32 annotationIndex, TMemoryPool& pool) {
if (!node.IsList())
return nullptr;
if (node.GetChildrenCount() < annotationIndex + 2)
return nullptr;
auto annotation = node.GetChild(annotationIndex);
auto str = annotation->GetContent();
TStringBuf rowPart;
TStringBuf colPart;
TString filePart;
GetNext(str, ':', rowPart);
GetNext(str, ':', colPart);
filePart = str;
ui32 row = 0, col = 0;
if (!TryFromString(rowPart, row) || !TryFromString(colPart, col))
return nullptr;
TSmallVec<TAstNode*> listChildren(node.GetChildrenCount());
for (ui32 index = 0; index < node.GetChildrenCount() - 1; ++index) {
listChildren[index] = node.GetChild(index);
}
auto lastNode = node.GetChild(node.GetChildrenCount() - 1);
TAstNode* lastResNode;
if (lastNode->IsAtom()) {
lastResNode = TAstNode::NewAtom(TPosition(col, row, filePart), lastNode->GetContent(), pool, lastNode->GetFlags());
} else {
TSmallVec<TAstNode*> lastNodeChildren(lastNode->GetChildrenCount());
for (ui32 index = 0; index < lastNode->GetChildrenCount(); ++index) {
lastNodeChildren[index] = ApplyNodePositionAnnotations(*lastNode->GetChild(index), annotationIndex, pool);
}
lastResNode = TAstNode::NewList(TPosition(col, row, filePart), lastNodeChildren.data(), lastNodeChildren.size(), pool);
}
listChildren[node.GetChildrenCount() - 1] = lastResNode;
return TAstNode::NewList(node.GetPosition(), listChildren.data(), listChildren.size(), pool);
}
bool ApplyNodePositionAnnotationsInplace(TAstNode& node, ui32 annotationIndex) {
if (!node.IsList())
return false;
if (node.GetChildrenCount() < annotationIndex + 2)
return false;
auto annotation = node.GetChild(annotationIndex);
TStringBuf str = annotation->GetContent();
TStringBuf rowPart;
TStringBuf colPart;
TString filePart;
GetNext(str, ':', rowPart);
GetNext(str, ':', colPart);
filePart = str;
ui32 row = 0, col = 0;
if (!TryFromString(rowPart, row) || !TryFromString(colPart, col))
return false;
auto lastNode = node.GetChild(node.GetChildrenCount() - 1);
lastNode->SetPosition(TPosition(col, row, filePart));
if (lastNode->IsList()) {
for (ui32 index = 0; index < lastNode->GetChildrenCount(); ++index) {
if (!ApplyNodePositionAnnotationsInplace(*lastNode->GetChild(index), annotationIndex))
return false;
}
}
return true;
}
}
TAstNode* AnnotatePositions(TAstNode& root, TMemoryPool& pool) {
return AnnotateNodePosition(root, pool);
}
TAstNode* RemoveAnnotations(TAstNode& root, TMemoryPool& pool) {
return RemoveNodeAnnotations(root, pool);
}
TAstNode* ApplyPositionAnnotations(TAstNode& root, ui32 annotationIndex, TMemoryPool& pool) {
return ApplyNodePositionAnnotations(root, annotationIndex, pool);
}
bool ApplyPositionAnnotationsInplace(TAstNode& root, ui32 annotationIndex) {
return ApplyNodePositionAnnotationsInplace(root, annotationIndex);
}
TAstNode* PositionAsNode(TPosition position, TMemoryPool& pool) {
TStringBuilder str;
str << position.Row << ':' << position.Column;
if (!position.File.empty()) {
str << ':' << position.File;
}
return TAstNode::NewAtom(position, str, pool);
}
TAstNode* ExtractAnnotations(TAstNode& root, TAnnotationNodeMap& annotations, TMemoryPool& pool) {
return ExtractNodeAnnotations(root, annotations, pool);
}
}
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