Class: Dhallish::Ast::ListConcatNode

Inherits:
Object
  • Object
show all
Defined in:
lib/ast.rb

Instance Method Summary collapse

Constructor Details

#initialize(lhs, rhs) ⇒ ListConcatNode

Returns a new instance of ListConcatNode.



260
261
262
263
 
# File 'lib/ast.rb', line 260

def initialize(lhs, rhs)
	@lhs = lhs
	@rhs = rhs
end

Instance Method Details

#compute_type(ctx) ⇒ Object 



265
266
267
268
269
270
271
272
273
 
# File 'lib/ast.rb', line 265

def compute_type(ctx)
	lhs_type = @lhs.compute_type(ctx)
	rhs_type = @rhs.compute_type(ctx)

	assert ("List Concat: left operand not a list but #{lhs_type}") { lhs_type.is_a? Types::List }
	assert ("List Concatenation operands type mismatch. Left: #{lhs_type}, Right: #{rhs_type}") { rhs_type == lhs_type }

	lhs_type
end

#evaluate(ctx) ⇒ Object 



275
276
277
278
279
 
# File 'lib/ast.rb', line 275

def evaluate(ctx)
	lhs = @lhs.evaluate(ctx)
	rhs = @rhs.evaluate(ctx)
	lhs + rhs
end