/##
	Copyright 2020-2021 Kyle Gunger

	Licensed under the COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
	(CDDL) Version 1.0 (the "License"). You may not use this file
	except in compliance with the License. You may obtain a copy of
	the License at

		https://opensource.org/licenses/CDDL-1.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
	implied.

	See the License for the specific language governing permissions
	and limitations under the License.
#/

# AST node (non-block)
;struct Node {
	tnslc.parse.Token
		# associated token to the node
		data,

	~{}Node
		# sub-nodes
		sub
}

# AST node (block)
;struct BlockNode extends Node {
	super,

	~{}Node
		# block inputs and outputs
		blockIn,
		blockOut,
	
	~{}tnslc.parse.Token
		# block qualifiers
		blockQs
}

# Node methods
/; method Node

	/; operator delete
		;delete this.data, this.sub
	;/

	/; push_sub (Node node) [uint]
		;uint len = this.sub.length
		;alloc this.sub, len + 1
		;this.sub{len} = node
		;return len + 1
	;/
;/

# Extended block node methods
/; method BlockNode

	/; operator delete
		;super()
		;delete this.blockQs, this.blockIn, this.blockOut
	;/

	/; push_blockQ (tnslc.parse.Token token) [uint]
		;uint len = this.blockQs.length
		;alloc this.blockQs, len + 1
		;this.blockQs{len} = token
		;return len + 1
	;/

	/; push_blockIn (Node node) [uint]
		;uint len = this.blockIn.length
		;alloc this.blockIn, len + 1
		;this.blockIn{len} = node
		;return len + 1
	;/

	/; push_blockOut (Node node) [uint]
		;uint len = this.blockOut.length
		;alloc this.blockOut, len + 1
		;this.blockOut{len} = node
		;return len + 1
	;/
;/