Give cdef functions the same position and first line number as def and @cfunc functions, i.e. the one of the outermost (first) decorator, not necessarily the function signature line.

Closes cython#6366

Author: scoder

Cython/Compiler/Parsing.py

@@ -2528,6 +2528,7 @@ def p_IF_statement(s: PyrexScanner, ctx):
 @cython.cfunc
 def p_statement(s: PyrexScanner, ctx, first_statement: cython.bint = 0):
     cdef_flag = ctx.cdef_flag
+    pos = s.position()
     decorators = None
     if s.sy == 'ctypedef':
         if ctx.level not in ('module', 'module_pxd'):
@@ -2577,7 +2578,7 @@ def p_statement(s: PyrexScanner, ctx, first_statement: cython.bint = 0):
         if ctx.level not in ('module', 'module_pxd', 'function', 'c_class', 'c_class_pxd'):
             s.error('cdef statement not allowed here')
         s.level = ctx.level
-        node = p_cdef_statement(s, ctx(overridable=overridable))
+        node = p_cdef_statement(s, pos, ctx(overridable=overridable))
         if decorators is not None:
             tup = (Nodes.CFuncDefNode, Nodes.CVarDefNode, Nodes.CClassDefNode)
             if ctx.allow_struct_enum_decorator:
@@ -3461,8 +3462,7 @@ def p_api(s: PyrexScanner) -> cython.bint:
 
 
 @cython.cfunc
-def p_cdef_statement(s: PyrexScanner, ctx):
-    pos = s.position()
+def p_cdef_statement(s: PyrexScanner, pos, ctx):
     ctx.visibility = p_visibility(s, ctx.visibility)
     ctx.api = ctx.api or p_api(s)
     if ctx.api:
@@ -4301,20 +4301,21 @@ def p_cpp_class_definition(s: PyrexScanner, pos,  ctx):
 
 @cython.cfunc
 def p_cpp_class_attribute(s: PyrexScanner, ctx):
+    pos = s.position()
     decorators = None
     if s.sy == '@':
         decorators = p_decorators(s)
     if s.systring == 'cppclass':
-        return p_cpp_class_definition(s, s.position(), ctx)
+        return p_cpp_class_definition(s, pos, ctx)
     elif s.systring == 'ctypedef':
         return p_ctypedef_statement(s, ctx)
     elif s.sy == 'IDENT' and s.systring in struct_enum_union:
         if s.systring != 'enum':
-            return p_cpp_class_definition(s, s.position(), ctx)
+            return p_cpp_class_definition(s, pos, ctx)
         else:
-            return p_struct_enum(s, s.position(), ctx)
+            return p_struct_enum(s, pos, ctx)
     else:
-        node = p_c_func_or_var_declaration(s, s.position(), ctx)
+        node = p_c_func_or_var_declaration(s, pos, ctx)
         if decorators is not None:
             tup = Nodes.CFuncDefNode, Nodes.CVarDefNode, Nodes.CClassDefNode
             if ctx.allow_struct_enum_decorator: