SemanticAnalysisVisitor: detect if several solve blocks are given

src/visitors/semantic_analysis_visitor.cpp

@@ -6,6 +6,7 @@
  */
 
 #include "visitors/semantic_analysis_visitor.hpp"
+#include "ast/breakpoint_block.hpp"
 #include "ast/function_block.hpp"
 #include "ast/function_table_block.hpp"
 #include "ast/independent_block.hpp"
@@ -170,5 +171,25 @@ void SemanticAnalysisVisitor::visit_mutex_unlock(const ast::MutexUnlock& /* node
     /// -->
 }
 
+void SemanticAnalysisVisitor::visit_breakpoint_block(const ast::BreakpointBlock& node) {
+    /// <-- This code is for check 8
+    solve_block_found_in_this_breakpoint_block = false;
+    node.visit_children(*this);
+    solve_block_found_in_this_breakpoint_block = false;
+    /// -->
+}
+
+void SemanticAnalysisVisitor::visit_solve_block(const ast::SolveBlock& /* node */) {
+    /// <-- This code is for check 8
+    if (solve_block_found_in_this_breakpoint_block) {
+        logger->critical(
+            "It is not allowed to have several solve blocks in the same breakpoint block");
+        check_fail = true;
+    } else {
+        solve_block_found_in_this_breakpoint_block = true;
+    }
+    /// -->
+}
+
 }  // namespace visitor
 }  // namespace nmodl

src/visitors/semantic_analysis_visitor.hpp

@@ -31,6 +31,7 @@
  * 5. Check if an independent variable is not 't'.
  * 6. Check that mutex are not badly use
  * 7. Check than function table got at least one argument.
+ * 8. Check that at most one solve block is present per breakpoint block.
  */
 #include "ast/ast.hpp"
 #include "visitors/ast_visitor.hpp"
@@ -54,6 +55,8 @@ class SemanticAnalysisVisitor: public ConstAstVisitor {
     bool is_point_process = false;
     /// true if we are inside a mutex locked part
     bool in_mutex = false;
+    /// true if we already found a solve block
+    bool solve_block_found_in_this_breakpoint_block = false;
 
     /// Store if we are in a procedure and if the arity of this is 1
     void visit_procedure_block(const ast::ProcedureBlock& node) override;
@@ -82,6 +85,11 @@ class SemanticAnalysisVisitor: public ConstAstVisitor {
     /// Look if MUTEXUNLOCK is outside a locked block
     void visit_mutex_unlock(const ast::MutexUnlock& node) override;
 
+    void visit_breakpoint_block(const ast::BreakpointBlock& node) override;
+
+    /// Check how many solve block we got
+    void visit_solve_block(const ast::SolveBlock& node) override;
+
   public:
     SemanticAnalysisVisitor(bool accel_backend = false)
         : accel_backend(accel_backend) {}

test/unit/visitor/semantic_analysis.cpp

@@ -165,3 +165,41 @@ SCENARIO("FUNCTION_TABLE block", "[visitor][semantic_analysis]") {
         }
     }
 }
+
+
+SCENARIO("At most one solve block per breakpoint block", "[visitor][semantic_analysis]") {
+    GIVEN("A breakpoint block with only one solve block") {
+        std::string nmodl_text = R"(
+            BREAKPOINT {
+                SOLVE dX METHOD cnexp
+            }
+        )";
+        THEN("Semantic analysis should success") {
+            REQUIRE_FALSE(run_semantic_analysis_visitor(nmodl_text));
+        }
+    }
+    GIVEN("2 breakpoints block with one solve block each") {
+        std::string nmodl_text = R"(
+            PROCEDURE foo() {
+                SOLVE dX METHOD cnexp
+            }
+            BREAKPOINT {
+                SOLVE dY METHOD cnexp
+            }
+        )";
+        THEN("Semantic analysis should success") {
+            REQUIRE_FALSE(run_semantic_analysis_visitor(nmodl_text));
+        }
+    }
+    GIVEN("A breakpoint block with two solve blocks") {
+        std::string nmodl_text = R"(
+            BREAKPOINT {
+                SOLVE dX METHOD cnexp
+                SOLVE dY METHOD cnexp
+            }
+        )";
+        THEN("Semantic analysis should fail") {
+            REQUIRE(run_semantic_analysis_visitor(nmodl_text));
+        }
+    }
+}