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Contents
require 'bel_parser/parsers/ast/node'
module BELParser
module Language
module Semantics
# NonCausalNestedStatement implements a {SemanticsFunction} that maps a
# nested {BELParser::Parsers::AST::Statement} to {SemanticsWarning} if
# the relationship is non-causal.
class NonCausalNestedStatement
include SemanticsFunction
private_class_method :new
def self.map(node, spec, _namespaces)
return nil unless node.is_a?(BELParser::Parsers::AST::Statement)
return nil unless node.object? && node.object.statement?
rel = node.relationship.string_literal.to_sym
unless spec.causal_relationships.include?(rel)
NonCausalNestedStatementWarning.new(node, spec, rel)
end
end
end
# Represents a {SemanticsWarning} when a nested
# {BELParser::Parsers::AST::Statement} has a non-causal relationship.
class NonCausalNestedStatementWarning < SemanticsWarning
attr_reader :non_causal_relationship
def initialize(stmt_node, spec, rel)
super(stmt_node, spec)
@non_causal_relationship = spec.relationship(rel)
end
def to_s
causal_relationships =
@specification
.causal_relationships
.map(&:long)
.join(', ')
<<-MSG.gsub(/ {12}/, '')
Nested statement is not a causal relationship.
The "#{non_causal_relationship.long}" relationship is not causal.
Causal Relationships: #{causal_relationships}
MSG
end
end
end
end
end
Version data entries
109 entries across 109 versions & 1 rubygems