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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 13x 1x 1x 1x 2x 2x 2x 2x 8x 8x 1x 4x 4x 8x 4x 3x 6x 2x 6x 2x | { Expression } = require './expression'
{ build } = require './builder'
{ equals } = require '../util/comparison'
# TODO: Spec lists "Conditional", but it's "If" in the XSD
module.exports.If = class If extends Expression
constructor: (json) ->
super
@condition = build json.condition
@th = build json.then
@els = build json.else
exec: (ctx) ->
if @condition.execute(ctx) then @th.execute(ctx) else @els.execute(ctx)
module.exports.CaseItem = CaseItem = class CaseItem
constructor:(json) ->
@when = build json.when
@then = build json.then
module.exports.Case = class Case extends Expression
constructor: (json) ->
super
@comparand = build json.comparand
@caseItems = for ci in json.caseItem
new CaseItem(ci)
@els = build json.else
exec: (ctx) ->
if @comparand then @exec_selected(ctx) else @exec_standard(ctx)
exec_selected: (ctx) ->
val = @comparand.execute(ctx)
for ci in @caseItems
if equals ci.when.execute(ctx), val
return ci.then.execute(ctx)
@els.execute(ctx)
exec_standard: (ctx) ->
for ci in @caseItems
if ci.when.execute(ctx)
return ci.then.execute(ctx)
@els.execute(ctx)
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