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rules_vhdl_antlproj.g4
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//
// Copyright (C) 2010-2014 Denis Gavrish
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// $antlr-format alignTrailingComments true, columnLimit 150, minEmptyLines 1, maxEmptyLinesToKeep 1, reflowComments false, useTab false
// $antlr-format allowShortRulesOnASingleLine false, allowShortBlocksOnASingleLine true, alignSemicolons hanging, alignColons hanging
grammar vhdl;
options {
caseInsensitive = true;
}
ABS
: 'ABS'
;
ACCESS
: 'ACCESS'
;
ACROSS
: 'ACROSS'
;
AFTER
: 'AFTER'
;
ALIAS
: 'ALIAS'
;
ALL
: 'ALL'
;
AND
: 'AND'
;
ARCHITECTURE
: 'ARCHITECTURE'
;
ARRAY
: 'ARRAY'
;
ASSERT
: 'ASSERT'
;
ATTRIBUTE
: 'ATTRIBUTE'
;
BEGIN
: 'BEGIN'
;
BLOCK
: 'BLOCK'
;
BODY
: 'BODY'
;
BREAK
: 'BREAK'
;
BUFFER
: 'BUFFER'
;
BUS
: 'BUS'
;
CASE
: 'CASE'
;
COMPONENT
: 'COMPONENT'
;
CONFIGURATION
: 'CONFIGURATION'
;
CONSTANT
: 'CONSTANT'
;
DISCONNECT
: 'DISCONNECT'
;
DOWNTO
: 'DOWNTO'
;
END
: 'END'
;
ENTITY
: 'ENTITY'
;
ELSE
: 'ELSE'
;
ELSIF
: 'ELSIF'
;
EXIT
: 'EXIT'
;
FILE
: 'FILE'
;
FOR
: 'FOR'
;
FUNCTION
: 'FUNCTION'
;
GENERATE
: 'GENERATE'
;
GENERIC
: 'GENERIC'
;
GROUP
: 'GROUP'
;
GUARDED
: 'GUARDED'
;
IF
: 'IF'
;
IMPURE
: 'IMPURE'
;
IN
: 'IN'
;
INERTIAL
: 'INERTIAL'
;
INOUT
: 'INOUT'
;
IS
: 'IS'
;
LABEL
: 'LABEL'
;
LIBRARY
: 'LIBRARY'
;
LIMIT
: 'LIMIT'
;
LINKAGE
: 'LINKAGE'
;
LITERAL
: 'LITERAL'
;
LOOP
: 'LOOP'
;
MAP
: 'MAP'
;
MOD
: 'MOD'
;
NAND
: 'NAND'
;
NATURE
: 'NATURE'
;
NEW
: 'NEW'
;
NEXT
: 'NEXT'
;
NOISE
: 'NOISE'
;
NOR
: 'NOR'
;
NOT
: 'NOT'
;
NULL
: 'NULL'
;
OF
: 'OF'
;
ON
: 'ON'
;
OPEN
: 'OPEN'
;
OR
: 'OR'
;
OTHERS
: 'OTHERS'
;
OUT
: 'OUT'
;
PACKAGE
: 'PACKAGE'
;
PORT
: 'PORT'
;
POSTPONED
: 'POSTPONED'
;
PROCESS
: 'PROCESS'
;
PROCEDURE
: 'PROCEDURE'
;
PROCEDURAL
: 'PROCEDURAL'
;
PURE
: 'PURE'
;
QUANTITY
: 'QUANTITY'
;
RANGE
: 'RANGE'
;
REVERSE_RANGE
: 'REVERSE_RANGE'
;
REJECT
: 'REJECT'
;
REM
: 'REM'
;
RECORD
: 'RECORD'
;
REFERENCE
: 'REFERENCE'
;
REGISTER
: 'REGISTER'
;
REPORT
: 'REPORT'
;
RETURN
: 'RETURN'
;
ROL
: 'ROL'
;
ROR
: 'ROR'
;
SELECT
: 'SELECT'
;
SEVERITY
: 'SEVERITY'
;
SHARED
: 'SHARED'
;
SIGNAL
: 'SIGNAL'
;
SLA
: 'SLA'
;
SLL
: 'SLL'
;
SPECTRUM
: 'SPECTRUM'
;
SRA
: 'SRA'
;
SRL
: 'SRL'
;
SUBNATURE
: 'SUBNATURE'
;
SUBTYPE
: 'SUBTYPE'
;
TERMINAL
: 'TERMINAL'
;
THEN
: 'THEN'
;
THROUGH
: 'THROUGH'
;
TO
: 'TO'
;
TOLERANCE
: 'TOLERANCE'
;
TRANSPORT
: 'TRANSPORT'
;
TYPE
: 'TYPE'
;
UNAFFECTED
: 'UNAFFECTED'
;
UNITS
: 'UNITS'
;
UNTIL
: 'UNTIL'
;
USE
: 'USE'
;
VARIABLE
: 'VARIABLE'
;
WAIT
: 'WAIT'
;
WITH
: 'WITH'
;
WHEN
: 'WHEN'
;
WHILE
: 'WHILE'
;
XNOR
: 'XNOR'
;
XOR
: 'XOR'
;
//------------------------------------------Parser----------------------------------------
abstract_literal
: INTEGER
| REAL_LITERAL
| BASE_LITERAL
;
access_type_definition
: ACCESS subtype_indication
;
across_aspect
: identifier_list (tolerance_aspect)? (VARASGN expression)? ACROSS
;
actual_designator
: expression
| OPEN
;
actual_parameter_part
: association_list
;
actual_part
: name LPAREN actual_designator RPAREN
| actual_designator
;
adding_operator
: PLUS
| MINUS
| AMPERSAND
;
aggregate
: LPAREN element_association (COMMA element_association)* RPAREN
;
alias_declaration
: ALIAS alias_designator (COLON alias_indication)? IS name (signature)? SEMI
;
alias_designator
: identifier
| CHARACTER_LITERAL
| STRING_LITERAL
;
alias_indication
: subnature_indication
| subtype_indication
;
allocator
: NEW (qualified_expression | subtype_indication)
;
architecture_body
: ARCHITECTURE identifier OF identifier IS architecture_declarative_part BEGIN architecture_statement_part END (
ARCHITECTURE
)? (identifier)? SEMI
;
architecture_declarative_part
: (block_declarative_item)*
;
architecture_statement
: block_statement
| process_statement
| ( label_colon)? concurrent_procedure_call_statement
| ( label_colon)? concurrent_assertion_statement
| ( label_colon)? ( POSTPONED)? concurrent_signal_assignment_statement
| component_instantiation_statement
| generate_statement
| concurrent_break_statement
| simultaneous_statement
;
architecture_statement_part
: (architecture_statement)*
;
array_nature_definition
: unconstrained_nature_definition
| constrained_nature_definition
;
array_type_definition
: unconstrained_array_definition
| constrained_array_definition
;
assertion
: ASSERT condition (REPORT expression)? (SEVERITY expression)?
;
assertion_statement
: (label_colon)? assertion SEMI
;
association_element
: (formal_part ARROW)? actual_part
;
association_list
: association_element (COMMA association_element)*
;
attribute_declaration
: ATTRIBUTE label_colon name SEMI
;
// Need to add several tokens here, for they are both, VHDLAMS reserved words
// and attribute names.
// (25.2.2004, e.f.)
attribute_designator
: identifier
| RANGE
| REVERSE_RANGE
| ACROSS
| THROUGH
| REFERENCE
| TOLERANCE
;
attribute_specification
: ATTRIBUTE attribute_designator OF entity_specification IS expression SEMI
;
base_unit_declaration
: identifier SEMI
;
binding_indication
: (USE entity_aspect)? (generic_map_aspect)? (port_map_aspect)?
;
block_configuration
: FOR block_specification (use_clause)* (configuration_item)* END FOR SEMI
;
block_declarative_item
: subprogram_declaration
| subprogram_body
| type_declaration
| subtype_declaration
| constant_declaration
| signal_declaration
| variable_declaration
| file_declaration
| alias_declaration
| component_declaration
| attribute_declaration
| attribute_specification
| configuration_specification
| disconnection_specification
| step_limit_specification
| use_clause
| group_template_declaration
| group_declaration
| nature_declaration
| subnature_declaration
| quantity_declaration
| terminal_declaration
;
block_declarative_part
: (block_declarative_item)*
;
block_header
: (generic_clause ( generic_map_aspect SEMI)?)? (port_clause ( port_map_aspect SEMI)?)?
;
block_specification
: identifier (LPAREN index_specification RPAREN)?
| name
;
block_statement
: label_colon BLOCK (LPAREN expression RPAREN)? (IS)? block_header block_declarative_part BEGIN block_statement_part END BLOCK (
identifier
)? SEMI
;
block_statement_part
: (architecture_statement)*
;
branch_quantity_declaration
: QUANTITY (across_aspect)? (through_aspect)? terminal_aspect SEMI
;
break_element
: (break_selector_clause)? name ARROW expression
;
break_list
: break_element (COMMA break_element)*
;
break_selector_clause
: FOR name USE
;
break_statement
: (label_colon)? BREAK (break_list)? (WHEN condition)? SEMI
;
case_statement
: (label_colon)? CASE expression IS (case_statement_alternative)+ END CASE (identifier)? SEMI
;
case_statement_alternative
: WHEN choices ARROW sequence_of_statements
;
choice
: identifier
| discrete_range
| simple_expression
| OTHERS
;
choices
: choice (BAR choice)*
;
component_configuration
: FOR component_specification (binding_indication SEMI)? (block_configuration)? END FOR SEMI
;
component_declaration
: COMPONENT identifier (IS)? (generic_clause)? (port_clause)? END COMPONENT (identifier)? SEMI
;
component_instantiation_statement
: label_colon instantiated_unit (generic_map_aspect)? (port_map_aspect)? SEMI
;
component_specification
: instantiation_list COLON name
;
composite_nature_definition
: array_nature_definition
| record_nature_definition
;
composite_type_definition
: array_type_definition
| record_type_definition
;
concurrent_assertion_statement
: (label_colon)? (POSTPONED)? assertion SEMI
;
concurrent_break_statement
: (label_colon)? BREAK (break_list)? (sensitivity_clause)? (WHEN condition)? SEMI
;
concurrent_procedure_call_statement
: (label_colon)? (POSTPONED)? procedure_call SEMI
;
concurrent_signal_assignment_statement
: (label_colon)? (POSTPONED)? (conditional_signal_assignment | selected_signal_assignment)
;
condition
: expression
;
condition_clause
: UNTIL condition
;
conditional_signal_assignment
: target LE opts conditional_waveforms SEMI
;
conditional_waveforms
: waveform (WHEN condition (ELSE conditional_waveforms)?)?
;
configuration_declaration
: CONFIGURATION identifier OF name IS configuration_declarative_part block_configuration END (
CONFIGURATION
)? (identifier)? SEMI
;
configuration_declarative_item
: use_clause
| attribute_specification
| group_declaration
;
configuration_declarative_part
: (configuration_declarative_item)*
;
configuration_item
: block_configuration
| component_configuration
;
configuration_specification
: FOR component_specification binding_indication SEMI
;
constant_declaration
: CONSTANT identifier_list COLON subtype_indication (VARASGN expression)? SEMI
;
constrained_array_definition
: ARRAY index_constraint OF subtype_indication
;
constrained_nature_definition
: ARRAY index_constraint OF subnature_indication
;
constraint
: range_constraint
| index_constraint
;
context_clause
: (context_item)*
;
context_item
: library_clause
| use_clause
;
delay_mechanism
: TRANSPORT
| ( REJECT expression)? INERTIAL
;
design_file
: (design_unit)* EOF
;
design_unit
: context_clause library_unit
;
designator
: identifier
| STRING_LITERAL
;
direction
: TO
| DOWNTO
;
disconnection_specification
: DISCONNECT guarded_signal_specification AFTER expression SEMI
;
discrete_range
: range_decl
| subtype_indication
;
element_association
: (choices ARROW)? expression
;
element_declaration
: identifier_list COLON element_subtype_definition SEMI
;
element_subnature_definition
: subnature_indication
;
element_subtype_definition
: subtype_indication
;
entity_aspect
: ENTITY name (LPAREN identifier RPAREN)?
| CONFIGURATION name
| OPEN
;
entity_class
: ENTITY
| ARCHITECTURE
| CONFIGURATION
| PROCEDURE
| FUNCTION
| PACKAGE
| TYPE
| SUBTYPE
| CONSTANT
| SIGNAL
| VARIABLE
| COMPONENT
| LABEL
| LITERAL
| UNITS
| GROUP
| FILE
| NATURE
| SUBNATURE
| QUANTITY
| TERMINAL
;
entity_class_entry
: entity_class (BOX)?
;
entity_class_entry_list
: entity_class_entry (COMMA entity_class_entry)*
;
entity_declaration
: ENTITY identifier IS entity_header entity_declarative_part (BEGIN entity_statement_part)? END (
ENTITY
)? (identifier)? SEMI
;
entity_declarative_item
: subprogram_declaration
| subprogram_body
| type_declaration
| subtype_declaration
| constant_declaration
| signal_declaration
| variable_declaration
| file_declaration
| alias_declaration
| attribute_declaration
| attribute_specification
| disconnection_specification
| step_limit_specification
| use_clause
| group_template_declaration
| group_declaration
| nature_declaration
| subnature_declaration
| quantity_declaration
| terminal_declaration
;
entity_declarative_part
: (entity_declarative_item)*
;
entity_designator
: entity_tag (signature)?
;
entity_header
: (generic_clause)? (port_clause)?
;
entity_name_list
: entity_designator (COMMA entity_designator)*
| OTHERS
| ALL
;
entity_specification
: entity_name_list COLON entity_class
;
entity_statement
: concurrent_assertion_statement
| process_statement
| concurrent_procedure_call_statement
;
entity_statement_part
: (entity_statement)*
;
entity_tag
: identifier
| CHARACTER_LITERAL
| STRING_LITERAL
;
enumeration_literal
: identifier
| CHARACTER_LITERAL
;
enumeration_type_definition
: LPAREN enumeration_literal (COMMA enumeration_literal)* RPAREN
;
exit_statement
: (label_colon)? EXIT (identifier)? (WHEN condition)? SEMI
;
// NOTE that NAND/NOR are in (...)* now (used to be in (...)?).
// (21.1.2004, e.f.)
expression
: relation (: logical_operator relation)*
;
factor
: primary (: DOUBLESTAR primary)?
| ABS primary
| NOT primary
;
file_declaration
: FILE identifier_list COLON subtype_indication (file_open_information)? SEMI
;
file_logical_name
: expression
;
file_open_information
: (OPEN expression)? IS file_logical_name
;