vhdl: parse PSL inherit spec. For #1899

11 files changed, 800 insertions, 739 deletions

diff --git a/pyGHDL/libghdl/vhdl/nodes.py b/pyGHDL/libghdl/vhdl/nodes.py
index 36cc357e8..d9f882b71 100644
--- a/pyGHDL/libghdl/vhdl/nodes.py
+++ b/pyGHDL/libghdl/vhdl/nodes.py
@@ -52,316 +52,317 @@ class Iir_Kind(IntEnum):
     Library_Clause = 5
     Use_Clause = 6
     Context_Reference = 7
-    Integer_Literal = 8
-    Floating_Point_Literal = 9
-    Null_Literal = 10
-    String_Literal8 = 11
-    Physical_Int_Literal = 12
-    Physical_Fp_Literal = 13
-    Simple_Aggregate = 14
-    Overflow_Literal = 15
-    Unaffected_Waveform = 16
-    Waveform_Element = 17
-    Conditional_Waveform = 18
-    Conditional_Expression = 19
-    Association_Element_By_Expression = 20
-    Association_Element_By_Name = 21
-    Association_Element_By_Individual = 22
-    Association_Element_Open = 23
-    Association_Element_Package = 24
-    Association_Element_Type = 25
-    Association_Element_Subprogram = 26
-    Association_Element_Terminal = 27
-    Choice_By_Range = 28
-    Choice_By_Expression = 29
-    Choice_By_Others = 30
-    Choice_By_None = 31
-    Choice_By_Name = 32
-    Entity_Aspect_Entity = 33
-    Entity_Aspect_Configuration = 34
-    Entity_Aspect_Open = 35
-    Psl_Hierarchical_Name = 36
-    Block_Configuration = 37
-    Block_Header = 38
-    Component_Configuration = 39
-    Binding_Indication = 40
-    Entity_Class = 41
-    Attribute_Value = 42
-    Signature = 43
-    Aggregate_Info = 44
-    Procedure_Call = 45
-    Record_Element_Constraint = 46
-    Array_Element_Resolution = 47
-    Record_Resolution = 48
-    Record_Element_Resolution = 49
-    Break_Element = 50
-    Attribute_Specification = 51
-    Disconnection_Specification = 52
-    Step_Limit_Specification = 53
-    Configuration_Specification = 54
-    Access_Type_Definition = 55
-    Incomplete_Type_Definition = 56
-    Interface_Type_Definition = 57
-    File_Type_Definition = 58
-    Protected_Type_Declaration = 59
-    Record_Type_Definition = 60
-    Array_Type_Definition = 61
-    Array_Subtype_Definition = 62
-    Record_Subtype_Definition = 63
-    Access_Subtype_Definition = 64
-    Physical_Subtype_Definition = 65
-    Floating_Subtype_Definition = 66
-    Integer_Subtype_Definition = 67
-    Enumeration_Subtype_Definition = 68
-    Enumeration_Type_Definition = 69
-    Integer_Type_Definition = 70
-    Floating_Type_Definition = 71
-    Physical_Type_Definition = 72
-    Range_Expression = 73
-    Protected_Type_Body = 74
-    Wildcard_Type_Definition = 75
-    Subtype_Definition = 76
-    Scalar_Nature_Definition = 77
-    Record_Nature_Definition = 78
-    Array_Nature_Definition = 79
-    Array_Subnature_Definition = 80
-    Overload_List = 81
-    Entity_Declaration = 82
-    Configuration_Declaration = 83
-    Context_Declaration = 84
-    Package_Declaration = 85
-    Package_Instantiation_Declaration = 86
-    Vmode_Declaration = 87
-    Vprop_Declaration = 88
-    Vunit_Declaration = 89
-    Package_Body = 90
-    Architecture_Body = 91
-    Type_Declaration = 92
-    Anonymous_Type_Declaration = 93
-    Subtype_Declaration = 94
-    Nature_Declaration = 95
-    Subnature_Declaration = 96
-    Package_Header = 97
-    Unit_Declaration = 98
-    Library_Declaration = 99
-    Component_Declaration = 100
-    Attribute_Declaration = 101
-    Group_Template_Declaration = 102
-    Group_Declaration = 103
-    Element_Declaration = 104
-    Nature_Element_Declaration = 105
-    Non_Object_Alias_Declaration = 106
-    Psl_Declaration = 107
-    Psl_Endpoint_Declaration = 108
-    Enumeration_Literal = 109
-    Function_Declaration = 110
-    Procedure_Declaration = 111
-    Function_Body = 112
-    Procedure_Body = 113
-    Function_Instantiation_Declaration = 114
-    Procedure_Instantiation_Declaration = 115
-    Terminal_Declaration = 116
-    Object_Alias_Declaration = 117
-    Free_Quantity_Declaration = 118
-    Spectrum_Quantity_Declaration = 119
-    Noise_Quantity_Declaration = 120
-    Across_Quantity_Declaration = 121
-    Through_Quantity_Declaration = 122
-    File_Declaration = 123
-    Guard_Signal_Declaration = 124
-    Signal_Declaration = 125
-    Variable_Declaration = 126
-    Constant_Declaration = 127
-    Iterator_Declaration = 128
-    Interface_Constant_Declaration = 129
-    Interface_Variable_Declaration = 130
-    Interface_Signal_Declaration = 131
-    Interface_File_Declaration = 132
-    Interface_Quantity_Declaration = 133
-    Interface_Terminal_Declaration = 134
-    Interface_Type_Declaration = 135
-    Interface_Package_Declaration = 136
-    Interface_Function_Declaration = 137
-    Interface_Procedure_Declaration = 138
-    Signal_Attribute_Declaration = 139
-    Identity_Operator = 140
-    Negation_Operator = 141
-    Absolute_Operator = 142
-    Not_Operator = 143
-    Implicit_Condition_Operator = 144
-    Condition_Operator = 145
-    Reduction_And_Operator = 146
-    Reduction_Or_Operator = 147
-    Reduction_Nand_Operator = 148
-    Reduction_Nor_Operator = 149
-    Reduction_Xor_Operator = 150
-    Reduction_Xnor_Operator = 151
-    And_Operator = 152
-    Or_Operator = 153
-    Nand_Operator = 154
-    Nor_Operator = 155
-    Xor_Operator = 156
-    Xnor_Operator = 157
-    Equality_Operator = 158
-    Inequality_Operator = 159
-    Less_Than_Operator = 160
-    Less_Than_Or_Equal_Operator = 161
-    Greater_Than_Operator = 162
-    Greater_Than_Or_Equal_Operator = 163
-    Match_Equality_Operator = 164
-    Match_Inequality_Operator = 165
-    Match_Less_Than_Operator = 166
-    Match_Less_Than_Or_Equal_Operator = 167
-    Match_Greater_Than_Operator = 168
-    Match_Greater_Than_Or_Equal_Operator = 169
-    Sll_Operator = 170
-    Sla_Operator = 171
-    Srl_Operator = 172
-    Sra_Operator = 173
-    Rol_Operator = 174
-    Ror_Operator = 175
-    Addition_Operator = 176
-    Substraction_Operator = 177
-    Concatenation_Operator = 178
-    Multiplication_Operator = 179
-    Division_Operator = 180
-    Modulus_Operator = 181
-    Remainder_Operator = 182
-    Exponentiation_Operator = 183
-    Function_Call = 184
-    Aggregate = 185
-    Parenthesis_Expression = 186
-    Qualified_Expression = 187
-    Type_Conversion = 188
-    Allocator_By_Expression = 189
-    Allocator_By_Subtype = 190
-    Selected_Element = 191
-    Dereference = 192
-    Implicit_Dereference = 193
-    Slice_Name = 194
-    Indexed_Name = 195
-    Psl_Prev = 196
-    Psl_Stable = 197
-    Psl_Rose = 198
-    Psl_Fell = 199
-    Psl_Onehot = 200
-    Psl_Onehot0 = 201
-    Psl_Expression = 202
-    Sensitized_Process_Statement = 203
-    Process_Statement = 204
-    Concurrent_Simple_Signal_Assignment = 205
-    Concurrent_Conditional_Signal_Assignment = 206
-    Concurrent_Selected_Signal_Assignment = 207
-    Concurrent_Assertion_Statement = 208
-    Concurrent_Procedure_Call_Statement = 209
-    Concurrent_Break_Statement = 210
-    Psl_Assert_Directive = 211
-    Psl_Assume_Directive = 212
-    Psl_Cover_Directive = 213
-    Psl_Restrict_Directive = 214
-    Block_Statement = 215
-    If_Generate_Statement = 216
-    Case_Generate_Statement = 217
-    For_Generate_Statement = 218
-    Component_Instantiation_Statement = 219
-    Psl_Default_Clock = 220
-    Generate_Statement_Body = 221
-    If_Generate_Else_Clause = 222
-    Simple_Simultaneous_Statement = 223
-    Simultaneous_Null_Statement = 224
-    Simultaneous_Procedural_Statement = 225
-    Simultaneous_Case_Statement = 226
-    Simultaneous_If_Statement = 227
-    Simultaneous_Elsif = 228
-    Simple_Signal_Assignment_Statement = 229
-    Conditional_Signal_Assignment_Statement = 230
-    Selected_Waveform_Assignment_Statement = 231
-    Signal_Force_Assignment_Statement = 232
-    Signal_Release_Assignment_Statement = 233
-    Null_Statement = 234
-    Assertion_Statement = 235
-    Report_Statement = 236
-    Wait_Statement = 237
-    Variable_Assignment_Statement = 238
-    Conditional_Variable_Assignment_Statement = 239
-    Return_Statement = 240
-    For_Loop_Statement = 241
-    While_Loop_Statement = 242
-    Next_Statement = 243
-    Exit_Statement = 244
-    Case_Statement = 245
-    Procedure_Call_Statement = 246
-    Break_Statement = 247
-    If_Statement = 248
-    Elsif = 249
-    Character_Literal = 250
-    Simple_Name = 251
-    Selected_Name = 252
-    Operator_Symbol = 253
-    Reference_Name = 254
-    External_Constant_Name = 255
-    External_Signal_Name = 256
-    External_Variable_Name = 257
-    Selected_By_All_Name = 258
-    Parenthesis_Name = 259
-    Package_Pathname = 260
-    Absolute_Pathname = 261
-    Relative_Pathname = 262
-    Pathname_Element = 263
-    Base_Attribute = 264
-    Subtype_Attribute = 265
-    Element_Attribute = 266
-    Across_Attribute = 267
-    Through_Attribute = 268
-    Nature_Reference_Attribute = 269
-    Left_Type_Attribute = 270
-    Right_Type_Attribute = 271
-    High_Type_Attribute = 272
-    Low_Type_Attribute = 273
-    Ascending_Type_Attribute = 274
-    Image_Attribute = 275
-    Value_Attribute = 276
-    Pos_Attribute = 277
-    Val_Attribute = 278
-    Succ_Attribute = 279
-    Pred_Attribute = 280
-    Leftof_Attribute = 281
-    Rightof_Attribute = 282
-    Signal_Slew_Attribute = 283
-    Quantity_Slew_Attribute = 284
-    Ramp_Attribute = 285
-    Zoh_Attribute = 286
-    Ltf_Attribute = 287
-    Ztf_Attribute = 288
-    Dot_Attribute = 289
-    Integ_Attribute = 290
-    Above_Attribute = 291
-    Quantity_Delayed_Attribute = 292
-    Delayed_Attribute = 293
-    Stable_Attribute = 294
-    Quiet_Attribute = 295
-    Transaction_Attribute = 296
-    Event_Attribute = 297
-    Active_Attribute = 298
-    Last_Event_Attribute = 299
-    Last_Active_Attribute = 300
-    Last_Value_Attribute = 301
-    Driving_Attribute = 302
-    Driving_Value_Attribute = 303
-    Behavior_Attribute = 304
-    Structure_Attribute = 305
-    Simple_Name_Attribute = 306
-    Instance_Name_Attribute = 307
-    Path_Name_Attribute = 308
-    Left_Array_Attribute = 309
-    Right_Array_Attribute = 310
-    High_Array_Attribute = 311
-    Low_Array_Attribute = 312
-    Length_Array_Attribute = 313
-    Ascending_Array_Attribute = 314
-    Range_Array_Attribute = 315
-    Reverse_Range_Array_Attribute = 316
-    Attribute_Name = 317
+    PSL_Inherit_Spec = 8
+    Integer_Literal = 9
+    Floating_Point_Literal = 10
+    Null_Literal = 11
+    String_Literal8 = 12
+    Physical_Int_Literal = 13
+    Physical_Fp_Literal = 14
+    Simple_Aggregate = 15
+    Overflow_Literal = 16
+    Unaffected_Waveform = 17
+    Waveform_Element = 18
+    Conditional_Waveform = 19
+    Conditional_Expression = 20
+    Association_Element_By_Expression = 21
+    Association_Element_By_Name = 22
+    Association_Element_By_Individual = 23
+    Association_Element_Open = 24
+    Association_Element_Package = 25
+    Association_Element_Type = 26
+    Association_Element_Subprogram = 27
+    Association_Element_Terminal = 28
+    Choice_By_Range = 29
+    Choice_By_Expression = 30
+    Choice_By_Others = 31
+    Choice_By_None = 32
+    Choice_By_Name = 33
+    Entity_Aspect_Entity = 34
+    Entity_Aspect_Configuration = 35
+    Entity_Aspect_Open = 36
+    Psl_Hierarchical_Name = 37
+    Block_Configuration = 38
+    Block_Header = 39
+    Component_Configuration = 40
+    Binding_Indication = 41
+    Entity_Class = 42
+    Attribute_Value = 43
+    Signature = 44
+    Aggregate_Info = 45
+    Procedure_Call = 46
+    Record_Element_Constraint = 47
+    Array_Element_Resolution = 48
+    Record_Resolution = 49
+    Record_Element_Resolution = 50
+    Break_Element = 51
+    Attribute_Specification = 52
+    Disconnection_Specification = 53
+    Step_Limit_Specification = 54
+    Configuration_Specification = 55
+    Access_Type_Definition = 56
+    Incomplete_Type_Definition = 57
+    Interface_Type_Definition = 58
+    File_Type_Definition = 59
+    Protected_Type_Declaration = 60
+    Record_Type_Definition = 61
+    Array_Type_Definition = 62
+    Array_Subtype_Definition = 63
+    Record_Subtype_Definition = 64
+    Access_Subtype_Definition = 65
+    Physical_Subtype_Definition = 66
+    Floating_Subtype_Definition = 67
+    Integer_Subtype_Definition = 68
+    Enumeration_Subtype_Definition = 69
+    Enumeration_Type_Definition = 70
+    Integer_Type_Definition = 71
+    Floating_Type_Definition = 72
+    Physical_Type_Definition = 73
+    Range_Expression = 74
+    Protected_Type_Body = 75
+    Wildcard_Type_Definition = 76
+    Subtype_Definition = 77
+    Scalar_Nature_Definition = 78
+    Record_Nature_Definition = 79
+    Array_Nature_Definition = 80
+    Array_Subnature_Definition = 81
+    Overload_List = 82
+    Entity_Declaration = 83
+    Configuration_Declaration = 84
+    Context_Declaration = 85
+    Package_Declaration = 86
+    Package_Instantiation_Declaration = 87
+    Vmode_Declaration = 88
+    Vprop_Declaration = 89
+    Vunit_Declaration = 90
+    Package_Body = 91
+    Architecture_Body = 92
+    Type_Declaration = 93
+    Anonymous_Type_Declaration = 94
+    Subtype_Declaration = 95
+    Nature_Declaration = 96
+    Subnature_Declaration = 97
+    Package_Header = 98
+    Unit_Declaration = 99
+    Library_Declaration = 100
+    Component_Declaration = 101
+    Attribute_Declaration = 102
+    Group_Template_Declaration = 103
+    Group_Declaration = 104
+    Element_Declaration = 105
+    Nature_Element_Declaration = 106
+    Non_Object_Alias_Declaration = 107
+    Psl_Declaration = 108
+    Psl_Endpoint_Declaration = 109
+    Enumeration_Literal = 110
+    Function_Declaration = 111
+    Procedure_Declaration = 112
+    Function_Body = 113
+    Procedure_Body = 114
+    Function_Instantiation_Declaration = 115
+    Procedure_Instantiation_Declaration = 116
+    Terminal_Declaration = 117
+    Object_Alias_Declaration = 118
+    Free_Quantity_Declaration = 119
+    Spectrum_Quantity_Declaration = 120
+    Noise_Quantity_Declaration = 121
+    Across_Quantity_Declaration = 122
+    Through_Quantity_Declaration = 123
+    File_Declaration = 124
+    Guard_Signal_Declaration = 125
+    Signal_Declaration = 126
+    Variable_Declaration = 127
+    Constant_Declaration = 128
+    Iterator_Declaration = 129
+    Interface_Constant_Declaration = 130
+    Interface_Variable_Declaration = 131
+    Interface_Signal_Declaration = 132
+    Interface_File_Declaration = 133
+    Interface_Quantity_Declaration = 134
+    Interface_Terminal_Declaration = 135
+    Interface_Type_Declaration = 136
+    Interface_Package_Declaration = 137
+    Interface_Function_Declaration = 138
+    Interface_Procedure_Declaration = 139
+    Signal_Attribute_Declaration = 140
+    Identity_Operator = 141
+    Negation_Operator = 142
+    Absolute_Operator = 143
+    Not_Operator = 144
+    Implicit_Condition_Operator = 145
+    Condition_Operator = 146
+    Reduction_And_Operator = 147
+    Reduction_Or_Operator = 148
+    Reduction_Nand_Operator = 149
+    Reduction_Nor_Operator = 150
+    Reduction_Xor_Operator = 151
+    Reduction_Xnor_Operator = 152
+    And_Operator = 153
+    Or_Operator = 154
+    Nand_Operator = 155
+    Nor_Operator = 156
+    Xor_Operator = 157
+    Xnor_Operator = 158
+    Equality_Operator = 159
+    Inequality_Operator = 160
+    Less_Than_Operator = 161
+    Less_Than_Or_Equal_Operator = 162
+    Greater_Than_Operator = 163
+    Greater_Than_Or_Equal_Operator = 164
+    Match_Equality_Operator = 165
+    Match_Inequality_Operator = 166
+    Match_Less_Than_Operator = 167
+    Match_Less_Than_Or_Equal_Operator = 168
+    Match_Greater_Than_Operator = 169
+    Match_Greater_Than_Or_Equal_Operator = 170
+    Sll_Operator = 171
+    Sla_Operator = 172
+    Srl_Operator = 173
+    Sra_Operator = 174
+    Rol_Operator = 175
+    Ror_Operator = 176
+    Addition_Operator = 177
+    Substraction_Operator = 178
+    Concatenation_Operator = 179
+    Multiplication_Operator = 180
+    Division_Operator = 181
+    Modulus_Operator = 182
+    Remainder_Operator = 183
+    Exponentiation_Operator = 184
+    Function_Call = 185
+    Aggregate = 186
+    Parenthesis_Expression = 187
+    Qualified_Expression = 188
+    Type_Conversion = 189
+    Allocator_By_Expression = 190
+    Allocator_By_Subtype = 191
+    Selected_Element = 192
+    Dereference = 193
+    Implicit_Dereference = 194
+    Slice_Name = 195
+    Indexed_Name = 196
+    Psl_Prev = 197
+    Psl_Stable = 198
+    Psl_Rose = 199
+    Psl_Fell = 200
+    Psl_Onehot = 201
+    Psl_Onehot0 = 202
+    Psl_Expression = 203
+    Sensitized_Process_Statement = 204
+    Process_Statement = 205
+    Concurrent_Simple_Signal_Assignment = 206
+    Concurrent_Conditional_Signal_Assignment = 207
+    Concurrent_Selected_Signal_Assignment = 208
+    Concurrent_Assertion_Statement = 209
+    Concurrent_Procedure_Call_Statement = 210
+    Concurrent_Break_Statement = 211
+    Psl_Assert_Directive = 212
+    Psl_Assume_Directive = 213
+    Psl_Cover_Directive = 214
+    Psl_Restrict_Directive = 215
+    Block_Statement = 216
+    If_Generate_Statement = 217
+    Case_Generate_Statement = 218
+    For_Generate_Statement = 219
+    Component_Instantiation_Statement = 220
+    Psl_Default_Clock = 221
+    Generate_Statement_Body = 222
+    If_Generate_Else_Clause = 223
+    Simple_Simultaneous_Statement = 224
+    Simultaneous_Null_Statement = 225
+    Simultaneous_Procedural_Statement = 226
+    Simultaneous_Case_Statement = 227
+    Simultaneous_If_Statement = 228
+    Simultaneous_Elsif = 229
+    Simple_Signal_Assignment_Statement = 230
+    Conditional_Signal_Assignment_Statement = 231
+    Selected_Waveform_Assignment_Statement = 232
+    Signal_Force_Assignment_Statement = 233
+    Signal_Release_Assignment_Statement = 234
+    Null_Statement = 235
+    Assertion_Statement = 236
+    Report_Statement = 237
+    Wait_Statement = 238
+    Variable_Assignment_Statement = 239
+    Conditional_Variable_Assignment_Statement = 240
+    Return_Statement = 241
+    For_Loop_Statement = 242
+    While_Loop_Statement = 243
+    Next_Statement = 244
+    Exit_Statement = 245
+    Case_Statement = 246
+    Procedure_Call_Statement = 247
+    Break_Statement = 248
+    If_Statement = 249
+    Elsif = 250
+    Character_Literal = 251
+    Simple_Name = 252
+    Selected_Name = 253
+    Operator_Symbol = 254
+    Reference_Name = 255
+    External_Constant_Name = 256
+    External_Signal_Name = 257
+    External_Variable_Name = 258
+    Selected_By_All_Name = 259
+    Parenthesis_Name = 260
+    Package_Pathname = 261
+    Absolute_Pathname = 262
+    Relative_Pathname = 263
+    Pathname_Element = 264
+    Base_Attribute = 265
+    Subtype_Attribute = 266
+    Element_Attribute = 267
+    Across_Attribute = 268
+    Through_Attribute = 269
+    Nature_Reference_Attribute = 270
+    Left_Type_Attribute = 271
+    Right_Type_Attribute = 272
+    High_Type_Attribute = 273
+    Low_Type_Attribute = 274
+    Ascending_Type_Attribute = 275
+    Image_Attribute = 276
+    Value_Attribute = 277
+    Pos_Attribute = 278
+    Val_Attribute = 279
+    Succ_Attribute = 280
+    Pred_Attribute = 281
+    Leftof_Attribute = 282
+    Rightof_Attribute = 283
+    Signal_Slew_Attribute = 284
+    Quantity_Slew_Attribute = 285
+    Ramp_Attribute = 286
+    Zoh_Attribute = 287
+    Ltf_Attribute = 288
+    Ztf_Attribute = 289
+    Dot_Attribute = 290
+    Integ_Attribute = 291
+    Above_Attribute = 292
+    Quantity_Delayed_Attribute = 293
+    Delayed_Attribute = 294
+    Stable_Attribute = 295
+    Quiet_Attribute = 296
+    Transaction_Attribute = 297
+    Event_Attribute = 298
+    Active_Attribute = 299
+    Last_Event_Attribute = 300
+    Last_Active_Attribute = 301
+    Last_Value_Attribute = 302
+    Driving_Attribute = 303
+    Driving_Value_Attribute = 304
+    Behavior_Attribute = 305
+    Structure_Attribute = 306
+    Simple_Name_Attribute = 307
+    Instance_Name_Attribute = 308
+    Path_Name_Attribute = 309
+    Left_Array_Attribute = 310
+    Right_Array_Attribute = 311
+    High_Array_Attribute = 312
+    Low_Array_Attribute = 313
+    Length_Array_Attribute = 314
+    Ascending_Array_Attribute = 315
+    Range_Array_Attribute = 316
+    Reverse_Range_Array_Attribute = 317
+    Attribute_Name = 318
 
 
 @export
@@ -2930,19 +2931,6 @@ def Set_Hierarchical_Name(obj: Iir, value: Iir) -> None:
 
 
 @export
-@BindToLibGHDL("vhdl__nodes__get_inherit_spec_chain")
-def Get_Inherit_Spec_Chain(obj: Iir) -> Iir:
-    """"""
-    return 0
-
-
-@export
-@BindToLibGHDL("vhdl__nodes__set_inherit_spec_chain")
-def Set_Inherit_Spec_Chain(obj: Iir, value: Iir) -> None:
-    """"""
-
-
-@export
 @BindToLibGHDL("vhdl__nodes__get_vunit_item_chain")
 def Get_Vunit_Item_Chain(obj: Iir) -> Iir:
     """"""
@@ -3554,6 +3542,19 @@ def Set_Context_Reference_Chain(obj: Iir, value: Iir) -> None:
 
 
 @export
+@BindToLibGHDL("vhdl__nodes__get_inherit_spec_chain")
+def Get_Inherit_Spec_Chain(obj: Iir) -> Iir:
+    """"""
+    return 0
+
+
+@export
+@BindToLibGHDL("vhdl__nodes__set_inherit_spec_chain")
+def Set_Inherit_Spec_Chain(obj: Iir, value: Iir) -> None:
+    """"""
+
+
+@export
 @BindToLibGHDL("vhdl__nodes__get_selected_name")
 def Get_Selected_Name(obj: Iir) -> Iir:
     """"""
diff --git a/pyGHDL/libghdl/vhdl/nodes_meta.py b/pyGHDL/libghdl/vhdl/nodes_meta.py
index 4e66fae44..726d885be 100644
--- a/pyGHDL/libghdl/vhdl/nodes_meta.py
+++ b/pyGHDL/libghdl/vhdl/nodes_meta.py
@@ -201,54 +201,54 @@ class fields(IntEnum):
     Macro_Expanded_Flag = 81
     Need_Instance_Bodies = 82
     Hierarchical_Name = 83
-    Inherit_Spec_Chain = 84
-    Vunit_Item_Chain = 85
-    Bound_Vunit_Chain = 86
-    Verification_Block_Configuration = 87
-    Block_Configuration = 88
-    Concurrent_Statement_Chain = 89
-    Chain = 90
-    Port_Chain = 91
-    Generic_Chain = 92
-    Type = 93
-    Subtype_Indication = 94
-    Discrete_Range = 95
-    Type_Definition = 96
-    Subtype_Definition = 97
-    Incomplete_Type_Declaration = 98
-    Interface_Type_Subprograms = 99
-    Nature_Definition = 100
-    Nature = 101
-    Subnature_Indication = 102
-    Mode = 103
-    Guarded_Signal_Flag = 104
-    Signal_Kind = 105
-    Base_Name = 106
-    Interface_Declaration_Chain = 107
-    Subprogram_Specification = 108
-    Sequential_Statement_Chain = 109
-    Simultaneous_Statement_Chain = 110
-    Subprogram_Body = 111
-    Overload_Number = 112
-    Subprogram_Depth = 113
-    Subprogram_Hash = 114
-    Impure_Depth = 115
-    Return_Type = 116
-    Implicit_Definition = 117
-    Uninstantiated_Subprogram_Name = 118
-    Default_Value = 119
-    Deferred_Declaration = 120
-    Deferred_Declaration_Flag = 121
-    Shared_Flag = 122
-    Design_Unit = 123
-    Block_Statement = 124
-    Signal_Driver = 125
-    Declaration_Chain = 126
-    File_Logical_Name = 127
-    File_Open_Kind = 128
-    Element_Position = 129
-    Use_Clause_Chain = 130
-    Context_Reference_Chain = 131
+    Vunit_Item_Chain = 84
+    Bound_Vunit_Chain = 85
+    Verification_Block_Configuration = 86
+    Block_Configuration = 87
+    Concurrent_Statement_Chain = 88
+    Chain = 89
+    Port_Chain = 90
+    Generic_Chain = 91
+    Type = 92
+    Subtype_Indication = 93
+    Discrete_Range = 94
+    Type_Definition = 95
+    Subtype_Definition = 96
+    Incomplete_Type_Declaration = 97
+    Interface_Type_Subprograms = 98
+    Nature_Definition = 99
+    Nature = 100
+    Subnature_Indication = 101
+    Mode = 102
+    Guarded_Signal_Flag = 103
+    Signal_Kind = 104
+    Base_Name = 105
+    Interface_Declaration_Chain = 106
+    Subprogram_Specification = 107
+    Sequential_Statement_Chain = 108
+    Simultaneous_Statement_Chain = 109
+    Subprogram_Body = 110
+    Overload_Number = 111
+    Subprogram_Depth = 112
+    Subprogram_Hash = 113
+    Impure_Depth = 114
+    Return_Type = 115
+    Implicit_Definition = 116
+    Uninstantiated_Subprogram_Name = 117
+    Default_Value = 118
+    Deferred_Declaration = 119
+    Deferred_Declaration_Flag = 120
+    Shared_Flag = 121
+    Design_Unit = 122
+    Block_Statement = 123
+    Signal_Driver = 124
+    Declaration_Chain = 125
+    File_Logical_Name = 126
+    File_Open_Kind = 127
+    Element_Position = 128
+    Use_Clause_Chain = 129
+    Context_Reference_Chain = 130
+    Inherit_Spec_Chain = 131
     Selected_Name = 132
     Type_Declarator = 133
     Complete_Type_Definition = 134
@@ -1128,12 +1128,6 @@ def Has_Hierarchical_Name(kind: IirKind) -> bool:
 
 
 @export
-@BindToLibGHDL("vhdl__nodes_meta__has_inherit_spec_chain")
-def Has_Inherit_Spec_Chain(kind: IirKind) -> bool:
-    """"""
-
-
-@export
 @BindToLibGHDL("vhdl__nodes_meta__has_vunit_item_chain")
 def Has_Vunit_Item_Chain(kind: IirKind) -> bool:
     """"""
@@ -1416,6 +1410,12 @@ def Has_Context_Reference_Chain(kind: IirKind) -> bool:
 
 
 @export
+@BindToLibGHDL("vhdl__nodes_meta__has_inherit_spec_chain")
+def Has_Inherit_Spec_Chain(kind: IirKind) -> bool:
+    """"""
+
+
+@export
 @BindToLibGHDL("vhdl__nodes_meta__has_selected_name")
 def Has_Selected_Name(kind: IirKind) -> bool:
     """"""
diff --git a/src/vhdl/vhdl-elocations.adb b/src/vhdl/vhdl-elocations.adb
index 9736cb92f..657e7921c 100644
--- a/src/vhdl/vhdl-elocations.adb
+++ b/src/vhdl/vhdl-elocations.adb
@@ -210,6 +210,7 @@ package body Vhdl.Elocations is
            | Iir_Kind_Foreign_Module
            | Iir_Kind_Use_Clause
            | Iir_Kind_Context_Reference
+           | Iir_Kind_PSL_Inherit_Spec
            | Iir_Kind_Integer_Literal
            | Iir_Kind_Floating_Point_Literal
            | Iir_Kind_Null_Literal
diff --git a/src/vhdl/vhdl-elocations.ads b/src/vhdl/vhdl-elocations.ads
index a4d13f654..1b6f41e46 100644
--- a/src/vhdl/vhdl-elocations.ads
+++ b/src/vhdl/vhdl-elocations.ads
@@ -327,6 +327,8 @@ package Vhdl.Elocations is
 
    -- Iir_Kind_Context_Reference (None)
 
+   -- Iir_Kind_PSL_Inherit_Spec (None)
+
    -----------------------
    --  type definitions --
    -----------------------
diff --git a/src/vhdl/vhdl-errors.adb b/src/vhdl/vhdl-errors.adb
index 947a75d6e..01fa3c0cd 100644
--- a/src/vhdl/vhdl-errors.adb
+++ b/src/vhdl/vhdl-errors.adb
@@ -573,6 +573,8 @@ package body Vhdl.Errors is
             return "use clause";
          when Iir_Kind_Context_Reference =>
             return "context reference";
+         when Iir_Kind_PSL_Inherit_Spec =>
+            return "PSL inherit";
          when Iir_Kind_Disconnection_Specification =>
             return "disconnection specification";
          when Iir_Kind_Step_Limit_Specification =>
diff --git a/src/vhdl/vhdl-nodes.adb b/src/vhdl/vhdl-nodes.adb
index def8a9695..478f59784 100644
--- a/src/vhdl/vhdl-nodes.adb
+++ b/src/vhdl/vhdl-nodes.adb
@@ -988,6 +988,7 @@ package body Vhdl.Nodes is
            | Iir_Kind_Library_Clause
            | Iir_Kind_Use_Clause
            | Iir_Kind_Context_Reference
+           | Iir_Kind_PSL_Inherit_Spec
            | Iir_Kind_Integer_Literal
            | Iir_Kind_Floating_Point_Literal
            | Iir_Kind_Null_Literal
@@ -2722,22 +2723,6 @@ package body Vhdl.Nodes is
       Set_Field1 (Vunit, Name);
    end Set_Hierarchical_Name;
 
-   function Get_Inherit_Spec_Chain (Vunit : Iir) return Iir is
-   begin
-      pragma Assert (Vunit /= Null_Iir);
-      pragma Assert (Has_Inherit_Spec_Chain (Get_Kind (Vunit)),
-                     "no field Inherit_Spec_Chain");
-      return Get_Field2 (Vunit);
-   end Get_Inherit_Spec_Chain;
-
-   procedure Set_Inherit_Spec_Chain (Vunit : Iir; Chain : Iir) is
-   begin
-      pragma Assert (Vunit /= Null_Iir);
-      pragma Assert (Has_Inherit_Spec_Chain (Get_Kind (Vunit)),
-                     "no field Inherit_Spec_Chain");
-      Set_Field2 (Vunit, Chain);
-   end Set_Inherit_Spec_Chain;
-
    function Get_Vunit_Item_Chain (Vunit : Iir) return Iir is
    begin
       pragma Assert (Vunit /= Null_Iir);
@@ -3517,6 +3502,22 @@ package body Vhdl.Nodes is
       Set_Field3 (Target, Chain);
    end Set_Context_Reference_Chain;
 
+   function Get_Inherit_Spec_Chain (Target : Iir) return Iir is
+   begin
+      pragma Assert (Target /= Null_Iir);
+      pragma Assert (Has_Inherit_Spec_Chain (Get_Kind (Target)),
+                     "no field Inherit_Spec_Chain");
+      return Get_Field3 (Target);
+   end Get_Inherit_Spec_Chain;
+
+   procedure Set_Inherit_Spec_Chain (Target : Iir; Chain : Iir) is
+   begin
+      pragma Assert (Target /= Null_Iir);
+      pragma Assert (Has_Inherit_Spec_Chain (Get_Kind (Target)),
+                     "no field Inherit_Spec_Chain");
+      Set_Field3 (Target, Chain);
+   end Set_Inherit_Spec_Chain;
+
    function Get_Selected_Name (Target : Iir) return Iir is
    begin
       pragma Assert (Target /= Null_Iir);
diff --git a/src/vhdl/vhdl-nodes.ads b/src/vhdl/vhdl-nodes.ads
index 973e7f748..0e4e07809 100644
--- a/src/vhdl/vhdl-nodes.ads
+++ b/src/vhdl/vhdl-nodes.ads
@@ -1149,8 +1149,6 @@ package Vhdl.Nodes is
    --
    --   Get/Set_Hierarchical_Name (Field1)
    --
-   --   Get/Set_Inherit_Spec_Chain (Field2)
-   --
    --   Get/Set_Attribute_Value_Chain (Field5)
    --
    --   Get/Set_Vunit_Item_Chain (Field6)
@@ -2325,6 +2323,16 @@ package Vhdl.Nodes is
    --
    --   Get/Set_Use_Clause_Chain (Field3)
 
+   -- Iir_Kind_PSL_Inherit_Spec (Short)
+   --
+   --   Get/Set_Parent (Field0)
+   --
+   --   Get/Set_Name (Field4)
+   --
+   --   Get/Set_Inherit_Spec_Chain (Field3)
+   --
+   --   Get/Set_Chain (Field2)
+
    -- Iir_Kind_Context_Reference (Short)
    --
    --  LRM08 13.4 Context clauses
@@ -4826,6 +4834,8 @@ package Vhdl.Nodes is
       Iir_Kind_Use_Clause,
       Iir_Kind_Context_Reference,
 
+      Iir_Kind_PSL_Inherit_Spec,
+
    -- Literals.
       Iir_Kind_Integer_Literal,
       Iir_Kind_Floating_Point_Literal,
@@ -7847,10 +7857,6 @@ package Vhdl.Nodes is
    function Get_Hierarchical_Name (Vunit : Iir) return Iir;
    procedure Set_Hierarchical_Name (Vunit : Iir; Name : Iir);
 
-   --  Field: Field2 Chain
-   function Get_Inherit_Spec_Chain (Vunit : Iir) return Iir;
-   procedure Set_Inherit_Spec_Chain (Vunit : Iir; Chain : Iir);
-
    --  Field: Field6 Chain
    function Get_Vunit_Item_Chain (Vunit : Iir) return Iir;
    procedure Set_Vunit_Item_Chain (Vunit : Iir; Chain : Iir);
@@ -8109,6 +8115,10 @@ package Vhdl.Nodes is
    function Get_Context_Reference_Chain (Target : Iir) return Iir;
    procedure Set_Context_Reference_Chain (Target : Iir; Chain : Iir);
 
+   --  Field: Field3 Chain
+   function Get_Inherit_Spec_Chain (Target : Iir) return Iir;
+   procedure Set_Inherit_Spec_Chain (Target : Iir; Chain : Iir);
+
    --  Selected name of an use_clause or context_reference
    --  Field: Field1
    function Get_Selected_Name (Target : Iir) return Iir;
diff --git a/src/vhdl/vhdl-nodes_meta.adb b/src/vhdl/vhdl-nodes_meta.adb
index 1dc02eb4b..1dca644ec 100644
--- a/src/vhdl/vhdl-nodes_meta.adb
+++ b/src/vhdl/vhdl-nodes_meta.adb
@@ -101,7 +101,6 @@ package body Vhdl.Nodes_Meta is
       Field_Macro_Expanded_Flag => Type_Boolean,
       Field_Need_Instance_Bodies => Type_Boolean,
       Field_Hierarchical_Name => Type_Iir,
-      Field_Inherit_Spec_Chain => Type_Iir,
       Field_Vunit_Item_Chain => Type_Iir,
       Field_Bound_Vunit_Chain => Type_Iir,
       Field_Verification_Block_Configuration => Type_Iir,
@@ -149,6 +148,7 @@ package body Vhdl.Nodes_Meta is
       Field_Element_Position => Type_Iir_Index32,
       Field_Use_Clause_Chain => Type_Iir,
       Field_Context_Reference_Chain => Type_Iir,
+      Field_Inherit_Spec_Chain => Type_Iir,
       Field_Selected_Name => Type_Iir,
       Field_Type_Declarator => Type_Iir,
       Field_Complete_Type_Definition => Type_Iir,
@@ -567,8 +567,6 @@ package body Vhdl.Nodes_Meta is
             return "need_instance_bodies";
          when Field_Hierarchical_Name =>
             return "hierarchical_name";
-         when Field_Inherit_Spec_Chain =>
-            return "inherit_spec_chain";
          when Field_Vunit_Item_Chain =>
             return "vunit_item_chain";
          when Field_Bound_Vunit_Chain =>
@@ -663,6 +661,8 @@ package body Vhdl.Nodes_Meta is
             return "use_clause_chain";
          when Field_Context_Reference_Chain =>
             return "context_reference_chain";
+         when Field_Inherit_Spec_Chain =>
+            return "inherit_spec_chain";
          when Field_Selected_Name =>
             return "selected_name";
          when Field_Type_Declarator =>
@@ -1165,6 +1165,8 @@ package body Vhdl.Nodes_Meta is
             return "use_clause";
          when Iir_Kind_Context_Reference =>
             return "context_reference";
+         when Iir_Kind_PSL_Inherit_Spec =>
+            return "psl_inherit_spec";
          when Iir_Kind_Integer_Literal =>
             return "integer_literal";
          when Iir_Kind_Floating_Point_Literal =>
@@ -1959,8 +1961,6 @@ package body Vhdl.Nodes_Meta is
             return Attr_None;
          when Field_Hierarchical_Name =>
             return Attr_None;
-         when Field_Inherit_Spec_Chain =>
-            return Attr_Chain;
          when Field_Vunit_Item_Chain =>
             return Attr_Chain;
          when Field_Bound_Vunit_Chain =>
@@ -2055,6 +2055,8 @@ package body Vhdl.Nodes_Meta is
             return Attr_None;
          when Field_Context_Reference_Chain =>
             return Attr_None;
+         when Field_Inherit_Spec_Chain =>
+            return Attr_Chain;
          when Field_Selected_Name =>
             return Attr_None;
          when Field_Type_Declarator =>
@@ -2603,6 +2605,11 @@ package body Vhdl.Nodes_Meta is
       Field_Selected_Name,
       Field_Chain,
       Field_Context_Reference_Chain,
+      --  Iir_Kind_PSL_Inherit_Spec
+      Field_Parent,
+      Field_Name,
+      Field_Inherit_Spec_Chain,
+      Field_Chain,
       --  Iir_Kind_Integer_Literal
       Field_Literal_Length,
       Field_Value,
@@ -3242,7 +3249,6 @@ package body Vhdl.Nodes_Meta is
       Field_End_Has_Identifier,
       Field_Parent,
       Field_Hierarchical_Name,
-      Field_Inherit_Spec_Chain,
       Field_Attribute_Value_Chain,
       Field_Vunit_Item_Chain,
       Field_Verification_Block_Configuration,
@@ -3255,7 +3261,6 @@ package body Vhdl.Nodes_Meta is
       Field_End_Has_Identifier,
       Field_Parent,
       Field_Hierarchical_Name,
-      Field_Inherit_Spec_Chain,
       Field_Attribute_Value_Chain,
       Field_Vunit_Item_Chain,
       Field_Verification_Block_Configuration,
@@ -3268,7 +3273,6 @@ package body Vhdl.Nodes_Meta is
       Field_End_Has_Identifier,
       Field_Parent,
       Field_Hierarchical_Name,
-      Field_Inherit_Spec_Chain,
       Field_Attribute_Value_Chain,
       Field_Vunit_Item_Chain,
       Field_Verification_Block_Configuration,
@@ -5255,316 +5259,317 @@ package body Vhdl.Nodes_Meta is
       Iir_Kind_Library_Clause => 46,
       Iir_Kind_Use_Clause => 50,
       Iir_Kind_Context_Reference => 54,
-      Iir_Kind_Integer_Literal => 59,
-      Iir_Kind_Floating_Point_Literal => 64,
-      Iir_Kind_Null_Literal => 66,
-      Iir_Kind_String_Literal8 => 77,
-      Iir_Kind_Physical_Int_Literal => 83,
-      Iir_Kind_Physical_Fp_Literal => 89,
-      Iir_Kind_Simple_Aggregate => 94,
-      Iir_Kind_Overflow_Literal => 97,
-      Iir_Kind_Unaffected_Waveform => 98,
-      Iir_Kind_Waveform_Element => 101,
-      Iir_Kind_Conditional_Waveform => 105,
-      Iir_Kind_Conditional_Expression => 109,
-      Iir_Kind_Association_Element_By_Expression => 117,
-      Iir_Kind_Association_Element_By_Name => 125,
-      Iir_Kind_Association_Element_By_Individual => 134,
-      Iir_Kind_Association_Element_Open => 140,
-      Iir_Kind_Association_Element_Package => 146,
-      Iir_Kind_Association_Element_Type => 154,
-      Iir_Kind_Association_Element_Subprogram => 160,
-      Iir_Kind_Association_Element_Terminal => 166,
-      Iir_Kind_Choice_By_Range => 174,
-      Iir_Kind_Choice_By_Expression => 182,
-      Iir_Kind_Choice_By_Others => 188,
-      Iir_Kind_Choice_By_None => 194,
-      Iir_Kind_Choice_By_Name => 201,
-      Iir_Kind_Entity_Aspect_Entity => 203,
-      Iir_Kind_Entity_Aspect_Configuration => 204,
-      Iir_Kind_Entity_Aspect_Open => 204,
-      Iir_Kind_Psl_Hierarchical_Name => 206,
-      Iir_Kind_Block_Configuration => 212,
-      Iir_Kind_Block_Header => 216,
-      Iir_Kind_Component_Configuration => 223,
-      Iir_Kind_Binding_Indication => 227,
-      Iir_Kind_Entity_Class => 229,
-      Iir_Kind_Attribute_Value => 237,
-      Iir_Kind_Signature => 240,
-      Iir_Kind_Aggregate_Info => 247,
-      Iir_Kind_Procedure_Call => 251,
-      Iir_Kind_Record_Element_Constraint => 259,
-      Iir_Kind_Array_Element_Resolution => 261,
-      Iir_Kind_Record_Resolution => 262,
-      Iir_Kind_Record_Element_Resolution => 265,
-      Iir_Kind_Break_Element => 269,
-      Iir_Kind_Attribute_Specification => 278,
-      Iir_Kind_Disconnection_Specification => 284,
-      Iir_Kind_Step_Limit_Specification => 290,
-      Iir_Kind_Configuration_Specification => 296,
-      Iir_Kind_Access_Type_Definition => 303,
-      Iir_Kind_Incomplete_Type_Definition => 310,
-      Iir_Kind_Interface_Type_Definition => 316,
-      Iir_Kind_File_Type_Definition => 322,
-      Iir_Kind_Protected_Type_Declaration => 331,
-      Iir_Kind_Record_Type_Definition => 341,
-      Iir_Kind_Array_Type_Definition => 352,
-      Iir_Kind_Array_Subtype_Definition => 369,
-      Iir_Kind_Record_Subtype_Definition => 382,
-      Iir_Kind_Access_Subtype_Definition => 390,
-      Iir_Kind_Physical_Subtype_Definition => 400,
-      Iir_Kind_Floating_Subtype_Definition => 411,
-      Iir_Kind_Integer_Subtype_Definition => 421,
-      Iir_Kind_Enumeration_Subtype_Definition => 431,
-      Iir_Kind_Enumeration_Type_Definition => 442,
-      Iir_Kind_Integer_Type_Definition => 450,
-      Iir_Kind_Floating_Type_Definition => 458,
-      Iir_Kind_Physical_Type_Definition => 469,
-      Iir_Kind_Range_Expression => 477,
-      Iir_Kind_Protected_Type_Body => 485,
-      Iir_Kind_Wildcard_Type_Definition => 489,
-      Iir_Kind_Subtype_Definition => 496,
-      Iir_Kind_Scalar_Nature_Definition => 504,
-      Iir_Kind_Record_Nature_Definition => 517,
-      Iir_Kind_Array_Nature_Definition => 531,
-      Iir_Kind_Array_Subnature_Definition => 546,
-      Iir_Kind_Overload_List => 547,
-      Iir_Kind_Entity_Declaration => 560,
-      Iir_Kind_Configuration_Declaration => 570,
-      Iir_Kind_Context_Declaration => 576,
-      Iir_Kind_Package_Declaration => 591,
-      Iir_Kind_Package_Instantiation_Declaration => 605,
-      Iir_Kind_Vmode_Declaration => 617,
-      Iir_Kind_Vprop_Declaration => 629,
-      Iir_Kind_Vunit_Declaration => 642,
-      Iir_Kind_Package_Body => 650,
-      Iir_Kind_Architecture_Body => 663,
-      Iir_Kind_Type_Declaration => 670,
-      Iir_Kind_Anonymous_Type_Declaration => 676,
-      Iir_Kind_Subtype_Declaration => 684,
-      Iir_Kind_Nature_Declaration => 690,
-      Iir_Kind_Subnature_Declaration => 697,
-      Iir_Kind_Package_Header => 699,
-      Iir_Kind_Unit_Declaration => 708,
-      Iir_Kind_Library_Declaration => 716,
-      Iir_Kind_Component_Declaration => 726,
-      Iir_Kind_Attribute_Declaration => 733,
-      Iir_Kind_Group_Template_Declaration => 739,
-      Iir_Kind_Group_Declaration => 746,
-      Iir_Kind_Element_Declaration => 754,
-      Iir_Kind_Nature_Element_Declaration => 761,
-      Iir_Kind_Non_Object_Alias_Declaration => 769,
-      Iir_Kind_Psl_Declaration => 777,
-      Iir_Kind_Psl_Endpoint_Declaration => 791,
-      Iir_Kind_Enumeration_Literal => 803,
-      Iir_Kind_Function_Declaration => 828,
-      Iir_Kind_Procedure_Declaration => 852,
-      Iir_Kind_Function_Body => 862,
-      Iir_Kind_Procedure_Body => 873,
-      Iir_Kind_Function_Instantiation_Declaration => 884,
-      Iir_Kind_Procedure_Instantiation_Declaration => 894,
-      Iir_Kind_Terminal_Declaration => 903,
-      Iir_Kind_Object_Alias_Declaration => 915,
-      Iir_Kind_Free_Quantity_Declaration => 927,
-      Iir_Kind_Spectrum_Quantity_Declaration => 940,
-      Iir_Kind_Noise_Quantity_Declaration => 952,
-      Iir_Kind_Across_Quantity_Declaration => 968,
-      Iir_Kind_Through_Quantity_Declaration => 984,
-      Iir_Kind_File_Declaration => 999,
-      Iir_Kind_Guard_Signal_Declaration => 1013,
-      Iir_Kind_Signal_Declaration => 1030,
-      Iir_Kind_Variable_Declaration => 1043,
-      Iir_Kind_Constant_Declaration => 1057,
-      Iir_Kind_Iterator_Declaration => 1069,
-      Iir_Kind_Interface_Constant_Declaration => 1086,
-      Iir_Kind_Interface_Variable_Declaration => 1102,
-      Iir_Kind_Interface_Signal_Declaration => 1123,
-      Iir_Kind_Interface_File_Declaration => 1139,
-      Iir_Kind_Interface_Quantity_Declaration => 1155,
-      Iir_Kind_Interface_Terminal_Declaration => 1167,
-      Iir_Kind_Interface_Type_Declaration => 1178,
-      Iir_Kind_Interface_Package_Declaration => 1191,
-      Iir_Kind_Interface_Function_Declaration => 1209,
-      Iir_Kind_Interface_Procedure_Declaration => 1223,
-      Iir_Kind_Signal_Attribute_Declaration => 1226,
-      Iir_Kind_Identity_Operator => 1230,
-      Iir_Kind_Negation_Operator => 1234,
-      Iir_Kind_Absolute_Operator => 1238,
-      Iir_Kind_Not_Operator => 1242,
-      Iir_Kind_Implicit_Condition_Operator => 1246,
-      Iir_Kind_Condition_Operator => 1250,
-      Iir_Kind_Reduction_And_Operator => 1254,
-      Iir_Kind_Reduction_Or_Operator => 1258,
-      Iir_Kind_Reduction_Nand_Operator => 1262,
-      Iir_Kind_Reduction_Nor_Operator => 1266,
-      Iir_Kind_Reduction_Xor_Operator => 1270,
-      Iir_Kind_Reduction_Xnor_Operator => 1274,
-      Iir_Kind_And_Operator => 1279,
-      Iir_Kind_Or_Operator => 1284,
-      Iir_Kind_Nand_Operator => 1289,
-      Iir_Kind_Nor_Operator => 1294,
-      Iir_Kind_Xor_Operator => 1299,
-      Iir_Kind_Xnor_Operator => 1304,
-      Iir_Kind_Equality_Operator => 1309,
-      Iir_Kind_Inequality_Operator => 1314,
-      Iir_Kind_Less_Than_Operator => 1319,
-      Iir_Kind_Less_Than_Or_Equal_Operator => 1324,
-      Iir_Kind_Greater_Than_Operator => 1329,
-      Iir_Kind_Greater_Than_Or_Equal_Operator => 1334,
-      Iir_Kind_Match_Equality_Operator => 1339,
-      Iir_Kind_Match_Inequality_Operator => 1344,
-      Iir_Kind_Match_Less_Than_Operator => 1349,
-      Iir_Kind_Match_Less_Than_Or_Equal_Operator => 1354,
-      Iir_Kind_Match_Greater_Than_Operator => 1359,
-      Iir_Kind_Match_Greater_Than_Or_Equal_Operator => 1364,
-      Iir_Kind_Sll_Operator => 1369,
-      Iir_Kind_Sla_Operator => 1374,
-      Iir_Kind_Srl_Operator => 1379,
-      Iir_Kind_Sra_Operator => 1384,
-      Iir_Kind_Rol_Operator => 1389,
-      Iir_Kind_Ror_Operator => 1394,
-      Iir_Kind_Addition_Operator => 1399,
-      Iir_Kind_Substraction_Operator => 1404,
-      Iir_Kind_Concatenation_Operator => 1409,
-      Iir_Kind_Multiplication_Operator => 1414,
-      Iir_Kind_Division_Operator => 1419,
-      Iir_Kind_Modulus_Operator => 1424,
-      Iir_Kind_Remainder_Operator => 1429,
-      Iir_Kind_Exponentiation_Operator => 1434,
-      Iir_Kind_Function_Call => 1442,
-      Iir_Kind_Aggregate => 1449,
-      Iir_Kind_Parenthesis_Expression => 1452,
-      Iir_Kind_Qualified_Expression => 1456,
-      Iir_Kind_Type_Conversion => 1461,
-      Iir_Kind_Allocator_By_Expression => 1466,
-      Iir_Kind_Allocator_By_Subtype => 1472,
-      Iir_Kind_Selected_Element => 1480,
-      Iir_Kind_Dereference => 1485,
-      Iir_Kind_Implicit_Dereference => 1490,
-      Iir_Kind_Slice_Name => 1497,
-      Iir_Kind_Indexed_Name => 1503,
-      Iir_Kind_Psl_Prev => 1509,
-      Iir_Kind_Psl_Stable => 1514,
-      Iir_Kind_Psl_Rose => 1519,
-      Iir_Kind_Psl_Fell => 1524,
-      Iir_Kind_Psl_Onehot => 1527,
-      Iir_Kind_Psl_Onehot0 => 1530,
-      Iir_Kind_Psl_Expression => 1532,
-      Iir_Kind_Sensitized_Process_Statement => 1553,
-      Iir_Kind_Process_Statement => 1573,
-      Iir_Kind_Concurrent_Simple_Signal_Assignment => 1586,
-      Iir_Kind_Concurrent_Conditional_Signal_Assignment => 1599,
-      Iir_Kind_Concurrent_Selected_Signal_Assignment => 1613,
-      Iir_Kind_Concurrent_Assertion_Statement => 1621,
-      Iir_Kind_Concurrent_Procedure_Call_Statement => 1628,
-      Iir_Kind_Concurrent_Break_Statement => 1636,
-      Iir_Kind_Psl_Assert_Directive => 1650,
-      Iir_Kind_Psl_Assume_Directive => 1662,
-      Iir_Kind_Psl_Cover_Directive => 1674,
-      Iir_Kind_Psl_Restrict_Directive => 1685,
-      Iir_Kind_Block_Statement => 1699,
-      Iir_Kind_If_Generate_Statement => 1710,
-      Iir_Kind_Case_Generate_Statement => 1719,
-      Iir_Kind_For_Generate_Statement => 1728,
-      Iir_Kind_Component_Instantiation_Statement => 1739,
-      Iir_Kind_Psl_Default_Clock => 1742,
-      Iir_Kind_Generate_Statement_Body => 1753,
-      Iir_Kind_If_Generate_Else_Clause => 1759,
-      Iir_Kind_Simple_Simultaneous_Statement => 1766,
-      Iir_Kind_Simultaneous_Null_Statement => 1770,
-      Iir_Kind_Simultaneous_Procedural_Statement => 1781,
-      Iir_Kind_Simultaneous_Case_Statement => 1790,
-      Iir_Kind_Simultaneous_If_Statement => 1799,
-      Iir_Kind_Simultaneous_Elsif => 1805,
-      Iir_Kind_Simple_Signal_Assignment_Statement => 1816,
-      Iir_Kind_Conditional_Signal_Assignment_Statement => 1827,
-      Iir_Kind_Selected_Waveform_Assignment_Statement => 1839,
-      Iir_Kind_Signal_Force_Assignment_Statement => 1849,
-      Iir_Kind_Signal_Release_Assignment_Statement => 1858,
-      Iir_Kind_Null_Statement => 1862,
-      Iir_Kind_Assertion_Statement => 1869,
-      Iir_Kind_Report_Statement => 1875,
-      Iir_Kind_Wait_Statement => 1883,
-      Iir_Kind_Variable_Assignment_Statement => 1890,
-      Iir_Kind_Conditional_Variable_Assignment_Statement => 1897,
-      Iir_Kind_Return_Statement => 1903,
-      Iir_Kind_For_Loop_Statement => 1914,
-      Iir_Kind_While_Loop_Statement => 1925,
-      Iir_Kind_Next_Statement => 1932,
-      Iir_Kind_Exit_Statement => 1939,
-      Iir_Kind_Case_Statement => 1948,
-      Iir_Kind_Procedure_Call_Statement => 1954,
-      Iir_Kind_Break_Statement => 1961,
-      Iir_Kind_If_Statement => 1971,
-      Iir_Kind_Elsif => 1977,
-      Iir_Kind_Character_Literal => 1984,
-      Iir_Kind_Simple_Name => 1991,
-      Iir_Kind_Selected_Name => 1999,
-      Iir_Kind_Operator_Symbol => 2004,
-      Iir_Kind_Reference_Name => 2009,
-      Iir_Kind_External_Constant_Name => 2018,
-      Iir_Kind_External_Signal_Name => 2027,
-      Iir_Kind_External_Variable_Name => 2037,
-      Iir_Kind_Selected_By_All_Name => 2043,
-      Iir_Kind_Parenthesis_Name => 2048,
-      Iir_Kind_Package_Pathname => 2052,
-      Iir_Kind_Absolute_Pathname => 2053,
-      Iir_Kind_Relative_Pathname => 2054,
-      Iir_Kind_Pathname_Element => 2059,
-      Iir_Kind_Base_Attribute => 2061,
-      Iir_Kind_Subtype_Attribute => 2066,
-      Iir_Kind_Element_Attribute => 2071,
-      Iir_Kind_Across_Attribute => 2076,
-      Iir_Kind_Through_Attribute => 2081,
-      Iir_Kind_Nature_Reference_Attribute => 2085,
-      Iir_Kind_Left_Type_Attribute => 2090,
-      Iir_Kind_Right_Type_Attribute => 2095,
-      Iir_Kind_High_Type_Attribute => 2100,
-      Iir_Kind_Low_Type_Attribute => 2105,
-      Iir_Kind_Ascending_Type_Attribute => 2110,
-      Iir_Kind_Image_Attribute => 2116,
-      Iir_Kind_Value_Attribute => 2122,
-      Iir_Kind_Pos_Attribute => 2128,
-      Iir_Kind_Val_Attribute => 2134,
-      Iir_Kind_Succ_Attribute => 2140,
-      Iir_Kind_Pred_Attribute => 2146,
-      Iir_Kind_Leftof_Attribute => 2152,
-      Iir_Kind_Rightof_Attribute => 2158,
-      Iir_Kind_Signal_Slew_Attribute => 2166,
-      Iir_Kind_Quantity_Slew_Attribute => 2174,
-      Iir_Kind_Ramp_Attribute => 2182,
-      Iir_Kind_Zoh_Attribute => 2190,
-      Iir_Kind_Ltf_Attribute => 2198,
-      Iir_Kind_Ztf_Attribute => 2208,
-      Iir_Kind_Dot_Attribute => 2215,
-      Iir_Kind_Integ_Attribute => 2222,
-      Iir_Kind_Above_Attribute => 2230,
-      Iir_Kind_Quantity_Delayed_Attribute => 2238,
-      Iir_Kind_Delayed_Attribute => 2247,
-      Iir_Kind_Stable_Attribute => 2256,
-      Iir_Kind_Quiet_Attribute => 2265,
-      Iir_Kind_Transaction_Attribute => 2274,
-      Iir_Kind_Event_Attribute => 2278,
-      Iir_Kind_Active_Attribute => 2282,
-      Iir_Kind_Last_Event_Attribute => 2286,
-      Iir_Kind_Last_Active_Attribute => 2290,
-      Iir_Kind_Last_Value_Attribute => 2294,
-      Iir_Kind_Driving_Attribute => 2298,
-      Iir_Kind_Driving_Value_Attribute => 2302,
-      Iir_Kind_Behavior_Attribute => 2302,
-      Iir_Kind_Structure_Attribute => 2302,
-      Iir_Kind_Simple_Name_Attribute => 2309,
-      Iir_Kind_Instance_Name_Attribute => 2314,
-      Iir_Kind_Path_Name_Attribute => 2319,
-      Iir_Kind_Left_Array_Attribute => 2326,
-      Iir_Kind_Right_Array_Attribute => 2333,
-      Iir_Kind_High_Array_Attribute => 2340,
-      Iir_Kind_Low_Array_Attribute => 2347,
-      Iir_Kind_Length_Array_Attribute => 2354,
-      Iir_Kind_Ascending_Array_Attribute => 2361,
-      Iir_Kind_Range_Array_Attribute => 2368,
-      Iir_Kind_Reverse_Range_Array_Attribute => 2375,
-      Iir_Kind_Attribute_Name => 2384
+      Iir_Kind_PSL_Inherit_Spec => 58,
+      Iir_Kind_Integer_Literal => 63,
+      Iir_Kind_Floating_Point_Literal => 68,
+      Iir_Kind_Null_Literal => 70,
+      Iir_Kind_String_Literal8 => 81,
+      Iir_Kind_Physical_Int_Literal => 87,
+      Iir_Kind_Physical_Fp_Literal => 93,
+      Iir_Kind_Simple_Aggregate => 98,
+      Iir_Kind_Overflow_Literal => 101,
+      Iir_Kind_Unaffected_Waveform => 102,
+      Iir_Kind_Waveform_Element => 105,
+      Iir_Kind_Conditional_Waveform => 109,
+      Iir_Kind_Conditional_Expression => 113,
+      Iir_Kind_Association_Element_By_Expression => 121,
+      Iir_Kind_Association_Element_By_Name => 129,
+      Iir_Kind_Association_Element_By_Individual => 138,
+      Iir_Kind_Association_Element_Open => 144,
+      Iir_Kind_Association_Element_Package => 150,
+      Iir_Kind_Association_Element_Type => 158,
+      Iir_Kind_Association_Element_Subprogram => 164,
+      Iir_Kind_Association_Element_Terminal => 170,
+      Iir_Kind_Choice_By_Range => 178,
+      Iir_Kind_Choice_By_Expression => 186,
+      Iir_Kind_Choice_By_Others => 192,
+      Iir_Kind_Choice_By_None => 198,
+      Iir_Kind_Choice_By_Name => 205,
+      Iir_Kind_Entity_Aspect_Entity => 207,
+      Iir_Kind_Entity_Aspect_Configuration => 208,
+      Iir_Kind_Entity_Aspect_Open => 208,
+      Iir_Kind_Psl_Hierarchical_Name => 210,
+      Iir_Kind_Block_Configuration => 216,
+      Iir_Kind_Block_Header => 220,
+      Iir_Kind_Component_Configuration => 227,
+      Iir_Kind_Binding_Indication => 231,
+      Iir_Kind_Entity_Class => 233,
+      Iir_Kind_Attribute_Value => 241,
+      Iir_Kind_Signature => 244,
+      Iir_Kind_Aggregate_Info => 251,
+      Iir_Kind_Procedure_Call => 255,
+      Iir_Kind_Record_Element_Constraint => 263,
+      Iir_Kind_Array_Element_Resolution => 265,
+      Iir_Kind_Record_Resolution => 266,
+      Iir_Kind_Record_Element_Resolution => 269,
+      Iir_Kind_Break_Element => 273,
+      Iir_Kind_Attribute_Specification => 282,
+      Iir_Kind_Disconnection_Specification => 288,
+      Iir_Kind_Step_Limit_Specification => 294,
+      Iir_Kind_Configuration_Specification => 300,
+      Iir_Kind_Access_Type_Definition => 307,
+      Iir_Kind_Incomplete_Type_Definition => 314,
+      Iir_Kind_Interface_Type_Definition => 320,
+      Iir_Kind_File_Type_Definition => 326,
+      Iir_Kind_Protected_Type_Declaration => 335,
+      Iir_Kind_Record_Type_Definition => 345,
+      Iir_Kind_Array_Type_Definition => 356,
+      Iir_Kind_Array_Subtype_Definition => 373,
+      Iir_Kind_Record_Subtype_Definition => 386,
+      Iir_Kind_Access_Subtype_Definition => 394,
+      Iir_Kind_Physical_Subtype_Definition => 404,
+      Iir_Kind_Floating_Subtype_Definition => 415,
+      Iir_Kind_Integer_Subtype_Definition => 425,
+      Iir_Kind_Enumeration_Subtype_Definition => 435,
+      Iir_Kind_Enumeration_Type_Definition => 446,
+      Iir_Kind_Integer_Type_Definition => 454,
+      Iir_Kind_Floating_Type_Definition => 462,
+      Iir_Kind_Physical_Type_Definition => 473,
+      Iir_Kind_Range_Expression => 481,
+      Iir_Kind_Protected_Type_Body => 489,
+      Iir_Kind_Wildcard_Type_Definition => 493,
+      Iir_Kind_Subtype_Definition => 500,
+      Iir_Kind_Scalar_Nature_Definition => 508,
+      Iir_Kind_Record_Nature_Definition => 521,
+      Iir_Kind_Array_Nature_Definition => 535,
+      Iir_Kind_Array_Subnature_Definition => 550,
+      Iir_Kind_Overload_List => 551,
+      Iir_Kind_Entity_Declaration => 564,
+      Iir_Kind_Configuration_Declaration => 574,
+      Iir_Kind_Context_Declaration => 580,
+      Iir_Kind_Package_Declaration => 595,
+      Iir_Kind_Package_Instantiation_Declaration => 609,
+      Iir_Kind_Vmode_Declaration => 620,
+      Iir_Kind_Vprop_Declaration => 631,
+      Iir_Kind_Vunit_Declaration => 643,
+      Iir_Kind_Package_Body => 651,
+      Iir_Kind_Architecture_Body => 664,
+      Iir_Kind_Type_Declaration => 671,
+      Iir_Kind_Anonymous_Type_Declaration => 677,
+      Iir_Kind_Subtype_Declaration => 685,
+      Iir_Kind_Nature_Declaration => 691,
+      Iir_Kind_Subnature_Declaration => 698,
+      Iir_Kind_Package_Header => 700,
+      Iir_Kind_Unit_Declaration => 709,
+      Iir_Kind_Library_Declaration => 717,
+      Iir_Kind_Component_Declaration => 727,
+      Iir_Kind_Attribute_Declaration => 734,
+      Iir_Kind_Group_Template_Declaration => 740,
+      Iir_Kind_Group_Declaration => 747,
+      Iir_Kind_Element_Declaration => 755,
+      Iir_Kind_Nature_Element_Declaration => 762,
+      Iir_Kind_Non_Object_Alias_Declaration => 770,
+      Iir_Kind_Psl_Declaration => 778,
+      Iir_Kind_Psl_Endpoint_Declaration => 792,
+      Iir_Kind_Enumeration_Literal => 804,
+      Iir_Kind_Function_Declaration => 829,
+      Iir_Kind_Procedure_Declaration => 853,
+      Iir_Kind_Function_Body => 863,
+      Iir_Kind_Procedure_Body => 874,
+      Iir_Kind_Function_Instantiation_Declaration => 885,
+      Iir_Kind_Procedure_Instantiation_Declaration => 895,
+      Iir_Kind_Terminal_Declaration => 904,
+      Iir_Kind_Object_Alias_Declaration => 916,
+      Iir_Kind_Free_Quantity_Declaration => 928,
+      Iir_Kind_Spectrum_Quantity_Declaration => 941,
+      Iir_Kind_Noise_Quantity_Declaration => 953,
+      Iir_Kind_Across_Quantity_Declaration => 969,
+      Iir_Kind_Through_Quantity_Declaration => 985,
+      Iir_Kind_File_Declaration => 1000,
+      Iir_Kind_Guard_Signal_Declaration => 1014,
+      Iir_Kind_Signal_Declaration => 1031,
+      Iir_Kind_Variable_Declaration => 1044,
+      Iir_Kind_Constant_Declaration => 1058,
+      Iir_Kind_Iterator_Declaration => 1070,
+      Iir_Kind_Interface_Constant_Declaration => 1087,
+      Iir_Kind_Interface_Variable_Declaration => 1103,
+      Iir_Kind_Interface_Signal_Declaration => 1124,
+      Iir_Kind_Interface_File_Declaration => 1140,
+      Iir_Kind_Interface_Quantity_Declaration => 1156,
+      Iir_Kind_Interface_Terminal_Declaration => 1168,
+      Iir_Kind_Interface_Type_Declaration => 1179,
+      Iir_Kind_Interface_Package_Declaration => 1192,
+      Iir_Kind_Interface_Function_Declaration => 1210,
+      Iir_Kind_Interface_Procedure_Declaration => 1224,
+      Iir_Kind_Signal_Attribute_Declaration => 1227,
+      Iir_Kind_Identity_Operator => 1231,
+      Iir_Kind_Negation_Operator => 1235,
+      Iir_Kind_Absolute_Operator => 1239,
+      Iir_Kind_Not_Operator => 1243,
+      Iir_Kind_Implicit_Condition_Operator => 1247,
+      Iir_Kind_Condition_Operator => 1251,
+      Iir_Kind_Reduction_And_Operator => 1255,
+      Iir_Kind_Reduction_Or_Operator => 1259,
+      Iir_Kind_Reduction_Nand_Operator => 1263,
+      Iir_Kind_Reduction_Nor_Operator => 1267,
+      Iir_Kind_Reduction_Xor_Operator => 1271,
+      Iir_Kind_Reduction_Xnor_Operator => 1275,
+      Iir_Kind_And_Operator => 1280,
+      Iir_Kind_Or_Operator => 1285,
+      Iir_Kind_Nand_Operator => 1290,
+      Iir_Kind_Nor_Operator => 1295,
+      Iir_Kind_Xor_Operator => 1300,
+      Iir_Kind_Xnor_Operator => 1305,
+      Iir_Kind_Equality_Operator => 1310,
+      Iir_Kind_Inequality_Operator => 1315,
+      Iir_Kind_Less_Than_Operator => 1320,
+      Iir_Kind_Less_Than_Or_Equal_Operator => 1325,
+      Iir_Kind_Greater_Than_Operator => 1330,
+      Iir_Kind_Greater_Than_Or_Equal_Operator => 1335,
+      Iir_Kind_Match_Equality_Operator => 1340,
+      Iir_Kind_Match_Inequality_Operator => 1345,
+      Iir_Kind_Match_Less_Than_Operator => 1350,
+      Iir_Kind_Match_Less_Than_Or_Equal_Operator => 1355,
+      Iir_Kind_Match_Greater_Than_Operator => 1360,
+      Iir_Kind_Match_Greater_Than_Or_Equal_Operator => 1365,
+      Iir_Kind_Sll_Operator => 1370,
+      Iir_Kind_Sla_Operator => 1375,
+      Iir_Kind_Srl_Operator => 1380,
+      Iir_Kind_Sra_Operator => 1385,
+      Iir_Kind_Rol_Operator => 1390,
+      Iir_Kind_Ror_Operator => 1395,
+      Iir_Kind_Addition_Operator => 1400,
+      Iir_Kind_Substraction_Operator => 1405,
+      Iir_Kind_Concatenation_Operator => 1410,
+      Iir_Kind_Multiplication_Operator => 1415,
+      Iir_Kind_Division_Operator => 1420,
+      Iir_Kind_Modulus_Operator => 1425,
+      Iir_Kind_Remainder_Operator => 1430,
+      Iir_Kind_Exponentiation_Operator => 1435,
+      Iir_Kind_Function_Call => 1443,
+      Iir_Kind_Aggregate => 1450,
+      Iir_Kind_Parenthesis_Expression => 1453,
+      Iir_Kind_Qualified_Expression => 1457,
+      Iir_Kind_Type_Conversion => 1462,
+      Iir_Kind_Allocator_By_Expression => 1467,
+      Iir_Kind_Allocator_By_Subtype => 1473,
+      Iir_Kind_Selected_Element => 1481,
+      Iir_Kind_Dereference => 1486,
+      Iir_Kind_Implicit_Dereference => 1491,
+      Iir_Kind_Slice_Name => 1498,
+      Iir_Kind_Indexed_Name => 1504,
+      Iir_Kind_Psl_Prev => 1510,
+      Iir_Kind_Psl_Stable => 1515,
+      Iir_Kind_Psl_Rose => 1520,
+      Iir_Kind_Psl_Fell => 1525,
+      Iir_Kind_Psl_Onehot => 1528,
+      Iir_Kind_Psl_Onehot0 => 1531,
+      Iir_Kind_Psl_Expression => 1533,
+      Iir_Kind_Sensitized_Process_Statement => 1554,
+      Iir_Kind_Process_Statement => 1574,
+      Iir_Kind_Concurrent_Simple_Signal_Assignment => 1587,
+      Iir_Kind_Concurrent_Conditional_Signal_Assignment => 1600,
+      Iir_Kind_Concurrent_Selected_Signal_Assignment => 1614,
+      Iir_Kind_Concurrent_Assertion_Statement => 1622,
+      Iir_Kind_Concurrent_Procedure_Call_Statement => 1629,
+      Iir_Kind_Concurrent_Break_Statement => 1637,
+      Iir_Kind_Psl_Assert_Directive => 1651,
+      Iir_Kind_Psl_Assume_Directive => 1663,
+      Iir_Kind_Psl_Cover_Directive => 1675,
+      Iir_Kind_Psl_Restrict_Directive => 1686,
+      Iir_Kind_Block_Statement => 1700,
+      Iir_Kind_If_Generate_Statement => 1711,
+      Iir_Kind_Case_Generate_Statement => 1720,
+      Iir_Kind_For_Generate_Statement => 1729,
+      Iir_Kind_Component_Instantiation_Statement => 1740,
+      Iir_Kind_Psl_Default_Clock => 1743,
+      Iir_Kind_Generate_Statement_Body => 1754,
+      Iir_Kind_If_Generate_Else_Clause => 1760,
+      Iir_Kind_Simple_Simultaneous_Statement => 1767,
+      Iir_Kind_Simultaneous_Null_Statement => 1771,
+      Iir_Kind_Simultaneous_Procedural_Statement => 1782,
+      Iir_Kind_Simultaneous_Case_Statement => 1791,
+      Iir_Kind_Simultaneous_If_Statement => 1800,
+      Iir_Kind_Simultaneous_Elsif => 1806,
+      Iir_Kind_Simple_Signal_Assignment_Statement => 1817,
+      Iir_Kind_Conditional_Signal_Assignment_Statement => 1828,
+      Iir_Kind_Selected_Waveform_Assignment_Statement => 1840,
+      Iir_Kind_Signal_Force_Assignment_Statement => 1850,
+      Iir_Kind_Signal_Release_Assignment_Statement => 1859,
+      Iir_Kind_Null_Statement => 1863,
+      Iir_Kind_Assertion_Statement => 1870,
+      Iir_Kind_Report_Statement => 1876,
+      Iir_Kind_Wait_Statement => 1884,
+      Iir_Kind_Variable_Assignment_Statement => 1891,
+      Iir_Kind_Conditional_Variable_Assignment_Statement => 1898,
+      Iir_Kind_Return_Statement => 1904,
+      Iir_Kind_For_Loop_Statement => 1915,
+      Iir_Kind_While_Loop_Statement => 1926,
+      Iir_Kind_Next_Statement => 1933,
+      Iir_Kind_Exit_Statement => 1940,
+      Iir_Kind_Case_Statement => 1949,
+      Iir_Kind_Procedure_Call_Statement => 1955,
+      Iir_Kind_Break_Statement => 1962,
+      Iir_Kind_If_Statement => 1972,
+      Iir_Kind_Elsif => 1978,
+      Iir_Kind_Character_Literal => 1985,
+      Iir_Kind_Simple_Name => 1992,
+      Iir_Kind_Selected_Name => 2000,
+      Iir_Kind_Operator_Symbol => 2005,
+      Iir_Kind_Reference_Name => 2010,
+      Iir_Kind_External_Constant_Name => 2019,
+      Iir_Kind_External_Signal_Name => 2028,
+      Iir_Kind_External_Variable_Name => 2038,
+      Iir_Kind_Selected_By_All_Name => 2044,
+      Iir_Kind_Parenthesis_Name => 2049,
+      Iir_Kind_Package_Pathname => 2053,
+      Iir_Kind_Absolute_Pathname => 2054,
+      Iir_Kind_Relative_Pathname => 2055,
+      Iir_Kind_Pathname_Element => 2060,
+      Iir_Kind_Base_Attribute => 2062,
+      Iir_Kind_Subtype_Attribute => 2067,
+      Iir_Kind_Element_Attribute => 2072,
+      Iir_Kind_Across_Attribute => 2077,
+      Iir_Kind_Through_Attribute => 2082,
+      Iir_Kind_Nature_Reference_Attribute => 2086,
+      Iir_Kind_Left_Type_Attribute => 2091,
+      Iir_Kind_Right_Type_Attribute => 2096,
+      Iir_Kind_High_Type_Attribute => 2101,
+      Iir_Kind_Low_Type_Attribute => 2106,
+      Iir_Kind_Ascending_Type_Attribute => 2111,
+      Iir_Kind_Image_Attribute => 2117,
+      Iir_Kind_Value_Attribute => 2123,
+      Iir_Kind_Pos_Attribute => 2129,
+      Iir_Kind_Val_Attribute => 2135,
+      Iir_Kind_Succ_Attribute => 2141,
+      Iir_Kind_Pred_Attribute => 2147,
+      Iir_Kind_Leftof_Attribute => 2153,
+      Iir_Kind_Rightof_Attribute => 2159,
+      Iir_Kind_Signal_Slew_Attribute => 2167,
+      Iir_Kind_Quantity_Slew_Attribute => 2175,
+      Iir_Kind_Ramp_Attribute => 2183,
+      Iir_Kind_Zoh_Attribute => 2191,
+      Iir_Kind_Ltf_Attribute => 2199,
+      Iir_Kind_Ztf_Attribute => 2209,
+      Iir_Kind_Dot_Attribute => 2216,
+      Iir_Kind_Integ_Attribute => 2223,
+      Iir_Kind_Above_Attribute => 2231,
+      Iir_Kind_Quantity_Delayed_Attribute => 2239,
+      Iir_Kind_Delayed_Attribute => 2248,
+      Iir_Kind_Stable_Attribute => 2257,
+      Iir_Kind_Quiet_Attribute => 2266,
+      Iir_Kind_Transaction_Attribute => 2275,
+      Iir_Kind_Event_Attribute => 2279,
+      Iir_Kind_Active_Attribute => 2283,
+      Iir_Kind_Last_Event_Attribute => 2287,
+      Iir_Kind_Last_Active_Attribute => 2291,
+      Iir_Kind_Last_Value_Attribute => 2295,
+      Iir_Kind_Driving_Attribute => 2299,
+      Iir_Kind_Driving_Value_Attribute => 2303,
+      Iir_Kind_Behavior_Attribute => 2303,
+      Iir_Kind_Structure_Attribute => 2303,
+      Iir_Kind_Simple_Name_Attribute => 2310,
+      Iir_Kind_Instance_Name_Attribute => 2315,
+      Iir_Kind_Path_Name_Attribute => 2320,
+      Iir_Kind_Left_Array_Attribute => 2327,
+      Iir_Kind_Right_Array_Attribute => 2334,
+      Iir_Kind_High_Array_Attribute => 2341,
+      Iir_Kind_Low_Array_Attribute => 2348,
+      Iir_Kind_Length_Array_Attribute => 2355,
+      Iir_Kind_Ascending_Array_Attribute => 2362,
+      Iir_Kind_Range_Array_Attribute => 2369,
+      Iir_Kind_Reverse_Range_Array_Attribute => 2376,
+      Iir_Kind_Attribute_Name => 2385
      );
 
    function Get_Fields_First (K : Iir_Kind) return Fields_Index is
@@ -6113,8 +6118,6 @@ package body Vhdl.Nodes_Meta is
             return Get_Instance_Package_Body (N);
          when Field_Hierarchical_Name =>
             return Get_Hierarchical_Name (N);
-         when Field_Inherit_Spec_Chain =>
-            return Get_Inherit_Spec_Chain (N);
          when Field_Vunit_Item_Chain =>
             return Get_Vunit_Item_Chain (N);
          when Field_Bound_Vunit_Chain =>
@@ -6187,6 +6190,8 @@ package body Vhdl.Nodes_Meta is
             return Get_Use_Clause_Chain (N);
          when Field_Context_Reference_Chain =>
             return Get_Context_Reference_Chain (N);
+         when Field_Inherit_Spec_Chain =>
+            return Get_Inherit_Spec_Chain (N);
          when Field_Selected_Name =>
             return Get_Selected_Name (N);
          when Field_Type_Declarator =>
@@ -6569,8 +6574,6 @@ package body Vhdl.Nodes_Meta is
             Set_Instance_Package_Body (N, V);
          when Field_Hierarchical_Name =>
             Set_Hierarchical_Name (N, V);
-         when Field_Inherit_Spec_Chain =>
-            Set_Inherit_Spec_Chain (N, V);
          when Field_Vunit_Item_Chain =>
             Set_Vunit_Item_Chain (N, V);
          when Field_Bound_Vunit_Chain =>
@@ -6643,6 +6646,8 @@ package body Vhdl.Nodes_Meta is
             Set_Use_Clause_Chain (N, V);
          when Field_Context_Reference_Chain =>
             Set_Context_Reference_Chain (N, V);
+         when Field_Inherit_Spec_Chain =>
+            Set_Inherit_Spec_Chain (N, V);
          when Field_Selected_Name =>
             Set_Selected_Name (N, V);
          when Field_Type_Declarator =>
@@ -8421,18 +8426,6 @@ package body Vhdl.Nodes_Meta is
       end case;
    end Has_Hierarchical_Name;
 
-   function Has_Inherit_Spec_Chain (K : Iir_Kind) return Boolean is
-   begin
-      case K is
-         when Iir_Kind_Vmode_Declaration
-           | Iir_Kind_Vprop_Declaration
-           | Iir_Kind_Vunit_Declaration =>
-            return True;
-         when others =>
-            return False;
-      end case;
-   end Has_Inherit_Spec_Chain;
-
    function Has_Vunit_Item_Chain (K : Iir_Kind) return Boolean is
    begin
       case K is
@@ -8503,6 +8496,7 @@ package body Vhdl.Nodes_Meta is
            | Iir_Kind_Library_Clause
            | Iir_Kind_Use_Clause
            | Iir_Kind_Context_Reference
+           | Iir_Kind_PSL_Inherit_Spec
            | Iir_Kind_Unaffected_Waveform
            | Iir_Kind_Waveform_Element
            | Iir_Kind_Conditional_Waveform
@@ -9321,6 +9315,11 @@ package body Vhdl.Nodes_Meta is
       return K = Iir_Kind_Context_Reference;
    end Has_Context_Reference_Chain;
 
+   function Has_Inherit_Spec_Chain (K : Iir_Kind) return Boolean is
+   begin
+      return K = Iir_Kind_PSL_Inherit_Spec;
+   end Has_Inherit_Spec_Chain;
+
    function Has_Selected_Name (K : Iir_Kind) return Boolean is
    begin
       case K is
@@ -10915,6 +10914,7 @@ package body Vhdl.Nodes_Meta is
            | Iir_Kind_Library_Clause
            | Iir_Kind_Use_Clause
            | Iir_Kind_Context_Reference
+           | Iir_Kind_PSL_Inherit_Spec
            | Iir_Kind_Choice_By_Range
            | Iir_Kind_Choice_By_Expression
            | Iir_Kind_Choice_By_Others
@@ -11447,7 +11447,8 @@ package body Vhdl.Nodes_Meta is
    function Has_Name (K : Iir_Kind) return Boolean is
    begin
       case K is
-         when Iir_Kind_Non_Object_Alias_Declaration
+         when Iir_Kind_PSL_Inherit_Spec
+           | Iir_Kind_Non_Object_Alias_Declaration
            | Iir_Kind_Object_Alias_Declaration =>
             return True;
          when others =>
diff --git a/src/vhdl/vhdl-nodes_meta.ads b/src/vhdl/vhdl-nodes_meta.ads
index f72a697e3..44ae8b048 100644
--- a/src/vhdl/vhdl-nodes_meta.ads
+++ b/src/vhdl/vhdl-nodes_meta.ads
@@ -145,7 +145,6 @@ package Vhdl.Nodes_Meta is
       Field_Macro_Expanded_Flag,
       Field_Need_Instance_Bodies,
       Field_Hierarchical_Name,
-      Field_Inherit_Spec_Chain,
       Field_Vunit_Item_Chain,
       Field_Bound_Vunit_Chain,
       Field_Verification_Block_Configuration,
@@ -193,6 +192,7 @@ package Vhdl.Nodes_Meta is
       Field_Element_Position,
       Field_Use_Clause_Chain,
       Field_Context_Reference_Chain,
+      Field_Inherit_Spec_Chain,
       Field_Selected_Name,
       Field_Type_Declarator,
       Field_Complete_Type_Definition,
@@ -729,7 +729,6 @@ package Vhdl.Nodes_Meta is
    function Has_Macro_Expanded_Flag (K : Iir_Kind) return Boolean;
    function Has_Need_Instance_Bodies (K : Iir_Kind) return Boolean;
    function Has_Hierarchical_Name (K : Iir_Kind) return Boolean;
-   function Has_Inherit_Spec_Chain (K : Iir_Kind) return Boolean;
    function Has_Vunit_Item_Chain (K : Iir_Kind) return Boolean;
    function Has_Bound_Vunit_Chain (K : Iir_Kind) return Boolean;
    function Has_Verification_Block_Configuration (K : Iir_Kind)
@@ -779,6 +778,7 @@ package Vhdl.Nodes_Meta is
    function Has_Element_Position (K : Iir_Kind) return Boolean;
    function Has_Use_Clause_Chain (K : Iir_Kind) return Boolean;
    function Has_Context_Reference_Chain (K : Iir_Kind) return Boolean;
+   function Has_Inherit_Spec_Chain (K : Iir_Kind) return Boolean;
    function Has_Selected_Name (K : Iir_Kind) return Boolean;
    function Has_Type_Declarator (K : Iir_Kind) return Boolean;
    function Has_Complete_Type_Definition (K : Iir_Kind) return Boolean;
diff --git a/src/vhdl/vhdl-parse.adb b/src/vhdl/vhdl-parse.adb
index 7605da5f8..a5c62bb79 100644
--- a/src/vhdl/vhdl-parse.adb
+++ b/src/vhdl/vhdl-parse.adb
@@ -11225,6 +11225,36 @@ package body Vhdl.Parse is
    end Parse_Package;
 
    --  1850-2005 7.2 Verification units
+   --  inherit_spec ::=
+   --    [ NONTRANSITIVE ] INHERIT vunit_Name { , vunit_name } ;
+   function Parse_PSL_Inherit_Spec return Iir
+   is
+      N : Iir;
+      First, Last : Iir;
+      Name : Iir;
+   begin
+      Chain_Init (First, Last);
+      loop
+         N := Create_Iir (Iir_Kind_PSL_Inherit_Spec);
+         Set_Location (N);
+         Chain_Append (First, Last, N);
+
+         -- Skip 'inherit' or ','.
+         Scan;
+
+         Name := Parse_Name;
+         Set_Name (N, Name);
+
+         exit when Current_Token /= Tok_Comma;
+      end loop;
+
+      Expect_Scan (Tok_Semi_Colon,
+                   "';' expected at the end of an inherit spec");
+
+      return First;
+   end Parse_PSL_Inherit_Spec;
+
+   --  1850-2005 7.2 Verification units
    --  verification_unit ::=
    --    vunit_type PSL_Identifier [ ( hierachical_hdl_name ) ] {
    --      { inherit_spec }
@@ -11280,8 +11310,6 @@ package body Vhdl.Parse is
       --  Skip '{'.
       Expect_Scan (Tok_Left_Curly);
 
-      --  TODO: inherit spec.
-
       --  Vunit items.
       Last_Item := Null_Iir;
       loop
@@ -11326,7 +11354,7 @@ package body Vhdl.Parse is
                | Tok_Package
                | Tok_Default =>
                if Label /= Null_Identifier then
-                  Error_Msg_Sem
+                  Error_Msg_Parse
                     (+Loc, "label not allowed before a declaration");
                   Label := Null_Identifier;
                end if;
@@ -11348,6 +11376,20 @@ package body Vhdl.Parse is
                | Tok_Right_Curly =>
                exit;
 
+            when Tok_Inherit =>
+               if Label /= Null_Identifier then
+                  Error_Msg_Parse
+                    (+Loc, "label not allowed for inherit spec");
+                  Label := Null_Identifier;
+               end if;
+               if Last_Item /= Null_Iir
+                 and then Get_Kind (Last_Item) /= Iir_Kind_PSL_Inherit_Spec
+               then
+                  Error_Msg_Parse
+                    ("inherit spec must be placed at the beginning");
+               end if;
+               Item := Parse_PSL_Inherit_Spec;
+
             when others =>
                --  Do not recognize PSL keywords.  This is required for
                --  'boolean' which is a PSL keyword.
diff --git a/src/vhdl/vhdl-utils.adb b/src/vhdl/vhdl-utils.adb
index 95261405d..eefdff5ab 100644
--- a/src/vhdl/vhdl-utils.adb
+++ b/src/vhdl/vhdl-utils.adb
@@ -302,6 +302,7 @@ package body Vhdl.Utils is
                | Iir_Kind_Library_Clause
                | Iir_Kind_Use_Clause
                | Iir_Kind_Context_Reference
+               | Iir_Kind_PSL_Inherit_Spec
                | Iir_Kind_Library_Declaration
                | Iir_Kind_Foreign_Module
                | Iir_Kinds_Library_Unit