Fix issue where grouped conditions in block comments were recognized as bind variables

Author: xterao

src/main/java/org/domaframework/doma/intellij/Sql.bnf

@@ -136,7 +136,7 @@ el_and_expr ::= el_expr "&&" el_expr
 el_or_expr ::= el_expr "||" el_expr
 
 // term
-el_term_expr ::= el_comparison_expr_group | el_arithmetic_expr_group | el_factor_expr
+el_term_expr ::= el_comparison_expr_group | el_arithmetic_expr_group | el_factor_expr | el_paren_expr
 private el_comparison_expr_group ::= el_eq_expr | el_ne_expr | el_lt_expr | el_le_expr | el_gt_expr | el_ge_expr
 private el_arithmetic_expr_group ::= el_add_expr | el_subtract_expr | el_multiply_expr | el_divide_expr | el_mod_expr
 el_eq_expr ::= el_factor_expr "==" el_factor_expr
@@ -165,7 +165,7 @@ el_class ::= el_id_expr ("." el_id_expr)*
 el_parameters ::= "(" (el_expr ("," el_expr)*)? ")" {pin=1}
 
 // primary
-el_primary_expr ::= el_literal_expr | el_id_expr | el_paren_expr
+el_primary_expr ::= el_literal_expr | el_id_expr //| el_paren_expr
 private el_literal_expr ::= EL_NULL | BOOLEAN | (EL_PLUS | EL_MINUS)? EL_NUMBER | EL_STRING | EL_CHAR
 el_id_expr ::= EL_IDENTIFIER
 {

src/main/java/org/domaframework/doma/intellij/psi/SqlCustomExprImpl.java

@@ -19,9 +19,12 @@
 import com.intellij.lang.ASTNode;
 import com.intellij.psi.PsiReference;
 import com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry;
+import com.intellij.psi.util.PsiTreeUtil;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
-public class SqlCustomExprImpl extends ASTWrapperPsiElement implements SqlCustomElExpr {
+public class SqlCustomExprImpl extends ASTWrapperPsiElement
+    implements SqlCustomElExpr, SqlElTermExpr {
 
   public SqlCustomExprImpl(@NotNull ASTNode node) {
     super(node);
@@ -31,4 +34,9 @@ public SqlCustomExprImpl(@NotNull ASTNode node) {
   public PsiReference @NotNull [] getReferences() {
     return ReferenceProvidersRegistry.getReferencesFromProviders(this);
   }
+
+  @Override
+  public @Nullable SqlElExpr getElExpr() {
+    return PsiTreeUtil.getChildOfAnyType(this, SqlElExpr.class);
+  }
 }

src/main/kotlin/org/domaframework/doma/intellij/extension/expr/SqlElExtensions.kt

@@ -34,7 +34,8 @@ val SqlElStaticFieldAccessExpr.accessElements: List<SqlElIdExpr>
 
 val SqlElFieldAccessExpr.accessElements: List<SqlElIdExpr?>
     get() =
-        this.elExprList
+        this
+            .getElPrimaryExprList()
             .mapNotNull { it as SqlElIdExpr }
             .sortedBy { it.textOffset }
             .toList()

src/test/kotlin/org/domaframework/doma/intellij/document/SqlSymbolDocumentTestCase.kt

@@ -18,6 +18,7 @@ package org.domaframework.doma.intellij.document
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.psi.PsiElement
 import org.domaframework.doma.intellij.DomaSqlTest
+import org.domaframework.doma.intellij.extension.expr.accessElements
 import org.domaframework.doma.intellij.psi.SqlBlockComment
 import org.domaframework.doma.intellij.psi.SqlElFieldAccessExpr
 import org.domaframework.doma.intellij.psi.SqlElForDirective
@@ -196,6 +197,6 @@ class SqlSymbolDocumentTestCase : DomaSqlTest() {
             return forDirective.elExprList.firstOrNull { it.text == searchElementName }
         }
 
-        return fieldAccessExpr.elExprList.firstOrNull { it.text == searchElementName }
+        return fieldAccessExpr.accessElements.firstOrNull { it?.text == searchElementName }
     }
 }

src/test/testData/sql/parser/SQLParser.sql

@@ -14,10 +14,10 @@ SELECT e.employee_id
  WHERE e.user_id = /* user.userId */0
    AND e.employee_id = /* employee.employeeId */0
    AND e.join_date <= /* referenceDate + 1 */'2099/12/31'
-   /*%if @isNotBlank(employee.departmentId) */
+   /*%if @isNotBlank(employee.departmentId) && (employee.departmentId > 100) */
    /*%if employee.departmentId.startsWith("200") */　
    AND e.department_id = /* employee.departmentId +  1 */'dept'
-   /*%elseif employee.numberOfProjects >= 3 */
+   /*%elseif (employee.numberOfProjects >= 3) */
    AND pe.start_date <= CURRENT_DATE
    AND pe.end_date >= CURRENT_DATE
    /*%end*/