1 files changed, 141 insertions, 0 deletions
diff --git a/src/shared/lsp/semantictokens.cpp b/src/shared/lsp/semantictokens.cpp
new file mode 100644
index 000000000..209966dcf
--- /dev/null
+++ b/src/shared/lsp/semantictokens.cpp
@@ -0,0 +1,141 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include "semantictokens.h"
+
+namespace lsp {
+
+bool SemanticTokensLegend::isValid() const
+{
+    return contains(tokenTypesKey) && contains(tokenModifiersKey);
+}
+
+QMap<QString, int> SemanticTokens::defaultTokenTypesMap()
+{
+    QMap<QString, int> map;
+    map.insert("namespace", namespaceToken);
+    map.insert("type", typeToken);
+    map.insert("class", classToken);
+    map.insert("enum", enumToken);
+    map.insert("interface", interfaceToken);
+    map.insert("struct", structToken);
+    map.insert("typeParameter", typeParameterToken);
+    map.insert("parameter", parameterToken);
+    map.insert("variable", variableToken);
+    map.insert("property", propertyToken);
+    map.insert("enumMember", enumMemberToken);
+    map.insert("event", eventToken);
+    map.insert("function", functionToken);
+    map.insert("method", methodToken);
+    map.insert("macro", macroToken);
+    map.insert("keyword", keywordToken);
+    map.insert("modifier", modifierToken);
+    map.insert("comment", commentToken);
+    map.insert("string", stringToken);
+    map.insert("number", numberToken);
+    map.insert("regexp", regexpToken);
+    map.insert("operator", operatorToken);
+    return map;
+}
+
+QMap<QString, int> SemanticTokens::defaultTokenModifiersMap()
+{
+    QMap<QString, int> map;
+    map.insert("declaration", declarationModifier);
+    map.insert("definition", definitionModifier);
+    map.insert("readonly", readonlyModifier);
+    map.insert("static", staticModifier);
+    map.insert("deprecated", deprecatedModifier);
+    map.insert("abstract", abstractModifier);
+    map.insert("async", asyncModifier);
+    map.insert("modification", modificationModifier);
+    map.insert("documentation", documentationModifier);
+    map.insert("defaultLibrary", defaultLibraryModifier);
+    return map;
+}
+
+static int convertModifiers(int modifiersData, const QList<int> &tokenModifiers)
+{
+    int result = 0;
+    for (int i = 0; i < tokenModifiers.size() && modifiersData > 0; ++i) {
+        if (modifiersData & 0x1) {
+            const int modifier = tokenModifiers[i];
+            if (modifier > 0)
+                result |= modifier;
+        }
+        modifiersData = modifiersData >> 1;
+    }
+    return result;
+}
+
+QList<SemanticToken> SemanticTokens::toTokens(const QList<int> &tokenTypes,
+                                              const QList<int> &tokenModifiers) const
+{
+    const QList<int> &data = this->data();
+    if (data.size() % 5 != 0)
+        return {};
+    QList<SemanticToken> tokens;
+    tokens.reserve(int(data.size() / 5));
+    auto end = data.end();
+    for (auto it = data.begin(); it != end; it += 5) {
+        SemanticToken token;
+        token.deltaLine = *(it);
+        token.deltaStart = *(it + 1);
+        token.length = *(it + 2);
+        token.tokenIndex = *(it + 3);
+        token.tokenType = tokenTypes.value(token.tokenIndex, -1);
+        token.rawTokenModifiers = *(it + 4);
+        token.tokenModifiers = convertModifiers(token.rawTokenModifiers, tokenModifiers);
+        tokens << token;
+    }
+    return tokens;
+}
+
+bool SemanticTokensRangeParams::isValid() const
+{
+    return SemanticTokensParams::isValid() && contains(rangeKey);
+}
+
+SemanticTokensFullRequest::SemanticTokensFullRequest(const SemanticTokensParams &params)
+    : Request(methodName, params)
+{}
+
+SemanticTokensRangeRequest::SemanticTokensRangeRequest(const SemanticTokensRangeParams &params)
+    : Request(methodName, params)
+{}
+
+SemanticTokensResult::SemanticTokensResult(const QJsonValue &value)
+{
+    if (value.isObject())
+        emplace<SemanticTokens>(SemanticTokens(value.toObject()));
+    else
+        emplace<std::nullptr_t>(nullptr);
+}
+
+SemanticTokensFullDeltaRequest::SemanticTokensFullDeltaRequest(const SemanticTokensDeltaParams &params)
+    : Request(methodName, params)
+{}
+
+bool SemanticTokensDeltaParams::isValid() const
+{
+    return SemanticTokensParams::isValid() && contains(previousResultIdKey);
+}
+
+SemanticTokensDeltaResult::SemanticTokensDeltaResult(const QJsonValue &value)
+{
+    if (value.isObject()) {
+        QJsonObject object = value.toObject();
+        if (object.contains(editsKey))
+            emplace<SemanticTokensDelta>(object);
+        else
+            emplace<SemanticTokens>(object);
+    } else {
+        emplace<std::nullptr_t>(nullptr);
+    }
+}
+
+SemanticTokensRefreshRequest::SemanticTokensRefreshRequest()
+    : Request(methodName, nullptr)
+{}
+
+} // namespace lsp