Merge pull request #638 from Laupetin/fix/macro-parameters-only-when-specified

fix(parser): macros only parse parameters if define specified them

src/Parser/Parsing/Impl/DefinesStreamProxy.cpp

@@ -52,9 +52,15 @@ DefinesStreamProxy::Define::Define()
     : m_contains_token_pasting_operators(false) {};
 
 DefinesStreamProxy::Define::Define(std::string name, std::string value)
+    : Define(std::move(name), std::move(value), false)
+{
+}
+
+DefinesStreamProxy::Define::Define(std::string name, std::string value, const bool parameterized)
     : m_name(std::move(name)),
       m_value(std::move(value)),
-      m_contains_token_pasting_operators(false)
+      m_contains_token_pasting_operators(false),
+      m_parameterized(parameterized)
 {
 }
 
@@ -253,9 +259,11 @@ void DefinesStreamProxy::ContinueParameters(const ParserLine& line, size_t& curr
 void DefinesStreamProxy::MatchDefineParameters(const ParserLine& line, size_t& currentPos)
 {
     m_current_define_parameters = std::vector<std::string>();
+    m_current_define_parameterized = false;
     if (line.m_line[currentPos] != '(')
         return;
 
+    m_current_define_parameterized = true;
     m_parameter_state = ParameterState::AFTER_OPEN;
     currentPos++;
 
@@ -285,7 +293,7 @@ bool DefinesStreamProxy::MatchDefineDirective(const ParserLine& line, const size
     SkipWhitespace(line, currentPos);
 
     m_in_define = true;
-    m_current_define = Define(name, std::string());
+    m_current_define = Define(name, std::string(), m_current_define_parameterized);
     m_current_define_value.str(std::string());
 
     ContinueDefine(line, currentPos);
@@ -1002,12 +1010,15 @@ void DefinesStreamProxy::ProcessNestedMacros(ParserLine& line, unsigned& linePos
             ss << std::string(input, lastDefineEnd, defineStart - (lastDefineEnd));
         }
 
-        callstack.push_back(nestedMacro);
+        callstack.emplace_back(nestedMacro);
 
         MacroParameterState nestedMacroState;
-        ExtractParametersFromMacroUsage(line, linePos, nestedMacroState, input, pos);
-        if (nestedMacroState.m_parameter_state != ParameterState::NOT_IN_PARAMETERS)
-            throw ParsingException(CreatePos(line, linePos), "Unbalanced brackets in macro parameters");
+        if (nestedMacro->m_parameterized)
+        {
+            ExtractParametersFromMacroUsage(line, linePos, nestedMacroState, input, pos);
+            if (nestedMacroState.m_parameter_state != ParameterState::NOT_IN_PARAMETERS)
+                throw ParsingException(CreatePos(line, linePos), "Unbalanced brackets in macro parameters");
+        }
         ExpandMacro(line, linePos, ss, callstack, nestedMacro, nestedMacroState.m_parameters);
 
         callstack.pop_back();
@@ -1053,15 +1064,14 @@ void DefinesStreamProxy::ProcessMacrosMultiLine(ParserLine& line)
             str << std::string(line.m_line, lastDefineEnd, defineStart - (lastDefineEnd));
         }
 
-        callstack.push_back(m_current_macro);
+        callstack.emplace_back(m_current_macro);
 
-        ExtractParametersFromMacroUsage(line, pos, m_multi_line_macro_parameters, line.m_line, pos);
+        if (m_current_macro->m_parameterized)
+            ExtractParametersFromMacroUsage(line, pos, m_multi_line_macro_parameters, line.m_line, pos);
 
         // If still in parameters they continue on the next line
         if (m_multi_line_macro_parameters.m_parameter_state == ParameterState::NOT_IN_PARAMETERS)
-        {
             ExpandMacro(line, pos, str, callstack, m_current_macro, m_multi_line_macro_parameters.m_parameters);
-        }
 
         callstack.pop_back();
 

src/Parser/Parsing/Impl/DefinesStreamProxy.h

@@ -30,11 +30,13 @@ public:
     public:
         Define();
         Define(std::string name, std::string value);
+        Define(std::string name, std::string value, bool parameterized);
         void IdentifyParameters(const std::vector<std::string>& parameterNames);
 
         std::string m_name;
         std::string m_value;
         std::vector<DefineParameterPosition> m_parameter_positions;
+        bool m_parameterized;
         bool m_contains_token_pasting_operators;
 
     private:
@@ -132,6 +134,7 @@ private:
     Define m_current_define;
     std::ostringstream m_current_define_value;
     std::vector<std::string> m_current_define_parameters;
+    bool m_current_define_parameterized;
 
     const Define* m_current_macro;
     MacroParameterState m_multi_line_macro_parameters;

test/ParserTests/Parsing/Impl/DefinesStreamProxyTests.cpp

@@ -1226,4 +1226,28 @@ namespace test::parsing::impl::defines_stream_proxy
 
         REQUIRE(proxy.Eof());
     }
+
+    TEST_CASE("DefinesStreamProxy: Only macros with args parse parenthesis", "[parsing][parsingstream]")
+    {
+        const std::vector<std::string> lines{
+            "#define ONE result",
+            "#define TWO() result",
+            "#define THREE(f) result",
+            "ONE()",
+            "TWO()",
+            "THREE(f)",
+        };
+
+        MockParserLineStream mockStream(lines);
+        DefinesStreamProxy proxy(&mockStream);
+
+        ExpectLine(&proxy, 1, "");
+        ExpectLine(&proxy, 2, "");
+        ExpectLine(&proxy, 3, "");
+        ExpectLine(&proxy, 4, "result()");
+        ExpectLine(&proxy, 5, "result");
+        ExpectLine(&proxy, 6, "result");
+
+        REQUIRE(proxy.Eof());
+    }
 } // namespace test::parsing::impl::defines_stream_proxy