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as.grm
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as.grm
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define program
[packageDefinition]
| [classDefinitionWithImport]
end define
keys
import package
var const try catch
interface class function static extends override implements
public protected private
if else while for get set
null break return case default
% which are not keywords in haxe
% is as
end keys
compounds
== != >= <=
+= -= *= /=
|| && ++ --
...
end compounds
comments
//
/* */
end comments
tokens
hexnumber "0[Xx][\dABCDEFabcdef]+"
end tokens
include "expression.grm"
define packageDefinition
'package [id?] '{ [NL]
[IN] [classDefinitionWithImport] [EX]
'} [NL]
end define
define classDefinitionWithImport
[importDeclaration*]
[metadata*]
[classDefinition*]
end define
% Import Declaration
define importDeclaration
'import [id] [dotLibField*] [dotStar?] '; [NL]
end define
define dotLibField
'. [id]
end define
define dotStar
'. '*
end define
% Class Definition
define classDefinition
[classHeader] [classBody]
end define
define classBody
'{ [NL]
[IN] [memberDefinition*] [EX]
'} [NL]
end define
define classHeader
[modifier?] [classInterface] [id] [classDerivation?] [interfaceImplementation?]
end define
define classDerivation
'extends [type]
end define
define interfaceImplementation
'implements [id,]
end define
define classInterface
'class
| 'interface
end define
define memberDefinition
[memberFuncDefinition]
| [memberVarDefinition]
end define
define memberFuncDefinition
[memberFuncHeader] [memberFuncBody]
end define
define memberFuncBody
'{ [NL]
[IN] [statement*] [EX]
'} [NL] [NL]
| ';
end define
define memberFuncHeader
[metadata?] [overrideModifier?] [modifiers?] 'function [getterSetter?] [id] ([formalList]) [typeDeclaration?]
end define
define memberVarDefinition
[metadata?] [modifiers?] [varConst] [id] [typeDeclaration?] [evaluation?] '; [NL]
end define
define varConst
'var
| 'const
end define
define modifiers
[staticModifier?] [modifier]
| [modifier] [staticModifier]
end define
define modifier
'public
| 'protected
| 'private
end define
define staticModifier
'static
end define
define overrideModifier
'override
end define
define getterSetter
'get
| 'set
end define
define typeDeclaration
': [type]
end define
define type
[id] [dotLibField*]
| [id] [dotLibField*] '< [type] '>
| [id] [dotLibField*] '. '< [type] '>
end define
define formal
[id] [typeDeclaration?] [evaluation?]
end define
define formalList
[formal,]
| '... [id]
end define
% Statement
define statement
[primaryStatement?] '; [NL]
| [ifStatement]
| [forStatement]
| [whileStatement]
| [switchStatement]
| [funcDefinition]
| { [NL] [IN] [statement*] [EX] } [NL]
| [tryBlock]
end define
define primaryStatement
[varDefinition]
| [assignStatement]
| [funcCall]
| [newInstance]
| [returnStatement]
| 'break
end define
define varDefinition
[varConst] [varDefElem,]
end define
define varDefElem
[id] [typeDeclaration?] [evaluation?]
end define
define assignStatement
[leftValue] [assignment*]
| [leftValue] [selfaddop]
| [selfaddop] [leftValue]
end define
define assignment
[evalop] [expression]
end define
define leftValue
[primary]
end define
define evaluation
'= [expression]
end define
define funcCall
[objectValue] [arguments]
end define
define funcDefinition
'function [id?] ([formalList]) [typeDeclaration?] '{ [NL]
[IN] [statement*] [EX]
'} [NL]
end define
define primary
[number]
| '- [primary]
| [hexnumber]
| [stringlit]
| [objectValue]
| 'null
end define
define objectValue
[id]
| [funcCall]
| [newInstance]
| [objectValue] '. [id]
| [arraylit]
| [hashlit]
| [type]
| [objectValue]'[ [expression] ']
| ( [expression] )
| [funcDefinition]
end define
define newInstance
'new [type] [arguments?]
end define
define arguments
'( [expression,] ')
end define
define arraylit
'[ [expression,] ']
end define
define hashlit
'{ [hashItem,] '}
end define
define hashItem
[stringlit] ': [expression]
| [id] ': [expression]
end define
% some statement
define ifStatement
'if ([expression]) '{ [NL]
[IN] [statement*] [EX]
'} [NL]
[elseStatement?]
| 'if ([expression]) [statement]
[elseStatement?]
end define
define elseStatement
'else [statement]
end define
define returnStatement
'return [expression?]
end define
define forStatement
'for ([primaryStatement] '; [expression] '; [primaryStatement] ) [NL]
[IN] [statement] [EX]
| 'for 'each (['var?] [id] [typeDeclaration?] 'in [expression])
[IN] [statement] [EX]
end define
define whileStatement
'while ([expression]) [NL]
[IN] [statement] [EX]
end define
define switchStatement
'switch ([expression]) '{ [NL]
[IN] [caseBlock*] [EX]
'} [NL]
end define
define caseBlock
'case [primary] ':[NL] [statement*]
| 'default ': [NL] [statement*]
end define
define tryBlock
'try '{ [NL]
[IN] [statement*] [EX]
'} [catchBlock*]
end define
define catchBlock
'catch ([id] [typeDeclaration?]) '{ [NL]
[IN] [statement*] [EX]
'} [NL]
end define
% Metadata
define metadata
'[ [id] ([metaField,])']
end define
define metaField
[id] '= [stringlit]
end define