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22 changed files with 51 additions and 419 deletions
-6
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@@ -1,6 +0,0 @@
version: 2
updates:
- package-ecosystem: github-actions
directory: "/"
schedule:
interval: weekly
+4 -19
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@@ -14,39 +14,24 @@ jobs:
- { ruby: 3.0, allowed-failure: false } # minimum supported
- { ruby: 3.2, allowed-failure: false }
- { ruby: 3.3, allowed-failure: false }
- { ruby: 3.3, allowed-failure: false }
- { ruby: 3.4, allowed-failure: false } # latest
- {
ruby: 3.4,
allowed-failure: false,
rubyopt: "--enable-frozen-string-literal",
}
- { ruby: 3.4, allowed-failure: false, rubyopt: "--yjit" }
- { ruby: ruby-head, allowed-failure: false }
- {
ruby: ruby-head,
allowed-failure: false,
rubyopt: "--enable-frozen-string-literal",
}
- { ruby: ruby-head, allowed-failure: false, rubyopt: "--yjit" }
name: Test Ruby ${{ matrix.entry.ruby }}
steps:
- uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
- uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
- uses: actions/checkout@v3
- uses: ruby/setup-ruby@v1
with:
ruby-version: ${{ matrix.entry.ruby }}
bundler-cache: true
bundler: latest
- run: bundle exec rake
continue-on-error: ${{ matrix.entry.allowed-failure }}
env:
RUBYOPT: ${{ matrix.entry.rubyopt }}
memory_profile:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
- uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
- uses: actions/checkout@v3
- uses: ruby/setup-ruby@v1
with:
bundler-cache: true
- run: bundle exec rake memory_profile:run
+7 -18
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@@ -1,35 +1,24 @@
# Liquid Change Log
## 5.8.7
* Expose body content in the `Doc` tag [James Meng]
## 5.7.3 (unreleased)
## 5.8.1
* Fix `{% doc %}` tag to be visitable [Guilherme Carreiro]
## 5.8.0
* Introduce the new `{% doc %}` tag [Guilherme Carreiro]
## 5.7.3
* Raise Liquid::SyntaxError when parsing invalidly encoded strings [Chris AtLee]
* Raise Liquid::SyntaxError when parsing invalidly encoded strings
## 5.7.2 2025-01-31
* Fix array filters to not support nested properties [Guilherme Carreiro]
* Fix array filters to not support nested properties
## 5.7.1 2025-01-24
* Fix the `find` and `find_index`filters to return `nil` when filtering empty arrays [Guilherme Carreiro]
* Fix the `has` filter to return `false` when filtering empty arrays [Guilherme Carreiro]
* Fix the `find` and `find_index`filters to return `nil` when filtering empty arrays
* Fix the `has` filter to return `false` when filtering empty arrays
## 5.7.0 2025-01-16
### Features
* Add `find`, `find_index`, `has`, and `reject` filters to arrays [Guilherme Carreiro]
* Compatibility with Ruby 3.4 [Ian Ker-Seymer]
* Add `find`, `find_index`, `has`, and `reject` filters to arrays
* Compatibility with Ruby 3.4
## 5.6.4 2025-01-14
+1 -17
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@@ -2,17 +2,10 @@
module Liquid
module ParserSwitching
# We want "rigid" which is like strict but more strict only in some cases.
# We want to make it so strict behaves as is
# We want "rigid" to be stricter (prob beta flag)
# It shouldn't be slower to run rigid than strict, it's not rigid -> strict -> lax
# It's rigid -> lax or it's strict -> lax
def strict_parse_with_error_mode_fallback(markup)
rigid_parse_with_error_context(markup)
strict_parse_with_error_context(markup)
rescue SyntaxError => e
case parse_context.error_mode
when :rigid
raise
when :strict
raise
when :warn
@@ -23,7 +16,6 @@ module Liquid
def parse_with_selected_parser(markup)
case parse_context.error_mode
when :rigid then rigid_parse_with_error_context(markup)
when :strict then strict_parse_with_error_context(markup)
when :lax then lax_parse(markup)
when :warn
@@ -38,14 +30,6 @@ module Liquid
private
def rigid_parse_with_error_context(markup)
respond_to?(:rigid_parse) ? rigid_parse(markup) : strict_parse(markup)
rescue SyntaxError => e
e.line_number = line_number
e.markup_context = markup_context(markup)
raise e
end
def strict_parse_with_error_context(markup)
strict_parse(markup)
rescue SyntaxError => e
+6 -17
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@@ -3,6 +3,7 @@
require 'cgi'
require 'base64'
require 'bigdecimal'
module Liquid
module StandardFilters
MAX_I32 = (1 << 31) - 1
@@ -711,16 +712,7 @@ module Liquid
input.gsub(/\r?\n/, "<br />\n")
end
# @liquid_public_docs
# @liquid_type filter
# @liquid_category date
# @liquid_summary
# Formats a date according to a specified format string.
# @liquid_description
# This filter formats a date using various format specifiers. If the format string is empty,
# the original input is returned. If the input cannot be converted to a date, the original input is returned.
#
# The following format specifiers can be used:
# Reformat a date using Ruby's core Time#strftime( string ) -> string
#
# %a - The abbreviated weekday name (``Sun'')
# %A - The full weekday name (``Sunday'')
@@ -749,8 +741,8 @@ module Liquid
# %Y - Year with century
# %Z - Time zone name
# %% - Literal ``%'' character
# @liquid_syntax date | date: string
# @liquid_return [string]
#
# See also: http://www.ruby-doc.org/core/Time.html#method-i-strftime
def date(input, format)
str_format = Utils.to_s(format)
return input if str_format.empty?
@@ -997,7 +989,7 @@ module Liquid
end
def raise_property_error(property)
raise Liquid::ArgumentError, "cannot select the property '#{Utils.to_s(property)}'"
raise Liquid::ArgumentError, "cannot select the property '#{property}'"
end
def apply_operation(input, operand, operation)
@@ -1069,10 +1061,7 @@ module Liquid
end
def uniq(&block)
to_a.uniq do |item|
item = Utils.to_liquid_value(item)
block ? yield(item) : item
end
to_a.uniq(&block)
end
def compact
-4
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@@ -9,10 +9,6 @@ module Liquid
# Creates a new variable.
# @liquid_description
# You can create variables of any [basic type](/docs/api/liquid/basics#types), [object](/docs/api/liquid/objects), or object property.
#
# > Caution:
# > Predefined Liquid objects can be overridden by variables with the same name.
# > To make sure that you can access all Liquid objects, make sure that your variable name doesn't match a predefined object's name.
# @liquid_syntax
# {% assign variable_name = value %}
# @liquid_syntax_keyword variable_name The name of the variable being created.
-4
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@@ -9,10 +9,6 @@ module Liquid
# Creates a new variable with a string value.
# @liquid_description
# You can create complex strings with Liquid logic and variables.
#
# > Caution:
# > Predefined Liquid objects can be overridden by variables with the same name.
# > To make sure that you can access all Liquid objects, make sure that your variable name doesn't match a predefined object's name.
# @liquid_syntax
# {% capture variable %}
# value
+12 -42
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@@ -22,7 +22,18 @@ module Liquid
def initialize(tag_name, markup, options)
super
parse_with_selected_parser(markup)
case markup
when NamedSyntax
@variables = variables_from_string(Regexp.last_match(2))
@name = parse_expression(Regexp.last_match(1))
@is_named = true
when SimpleSyntax
@variables = variables_from_string(markup)
@name = @variables.to_s
@is_named = !@name.match?(/\w+:0x\h{8}/)
else
raise SyntaxError, options[:locale].t("errors.syntax.cycle")
end
end
def named?
@@ -54,47 +65,6 @@ module Liquid
private
# cycle [name:] expression(, expression)*
def rigid_parse(markup)
$stderr.puts "using rigid"
p = @parse_context.new_parser(markup)
if p.look(:id) && p.peek(1) == :colon
@name = p.consume(:id)
@is_named = true
p.consume(:colon)
end
@variables = []
while (var = p.expression)
@variables << var
break unless p.consume?(:comma)
end
raise_syntax_error(options) if @variables.empty?
end
# Temporarily until we migrate
def strict_parse(markup)
$stderr.puts "using rigid"
lax_parse(markup)
end
def lax_parse(markup)
case markup
when NamedSyntax
@variables = variables_from_string(Regexp.last_match(2))
@name = parse_expression(Regexp.last_match(1))
@is_named = true
when SimpleSyntax
@variables = variables_from_string(markup)
@name = @variables.to_s
@is_named = !@name.match?(/\w+:0x\h{8}/)
else
raise SyntaxError, options[:locale].t("errors.syntax.cycle")
end
end
def variables_from_string(markup)
markup.split(',').collect do |var|
var =~ /\s*(#{QuotedFragment})\s*/o
+1 -5
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@@ -7,14 +7,10 @@ module Liquid
# @liquid_name decrement
# @liquid_summary
# Creates a new variable, with a default value of -1, that's decreased by 1 with each subsequent call.
#
# > Caution:
# > Predefined Liquid objects can be overridden by variables with the same name.
# > To make sure that you can access all Liquid objects, make sure that your variable name doesn't match a predefined object's name.
# @liquid_description
# Variables that are declared with `decrement` are unique to the [layout](/themes/architecture/layouts), [template](/themes/architecture/templates),
# or [section](/themes/architecture/sections) file that they're created in. However, the variable is shared across
# [snippets](/themes/architecture/snippets) included in the file.
# [snippets](/themes/architecture#snippets) included in the file.
#
# Similarly, variables that are created with `decrement` are independent from those created with [`assign`](/docs/api/liquid/tags/assign)
# and [`capture`](/docs/api/liquid/tags/capture). However, `decrement` and [`increment`](/docs/api/liquid/tags/increment) share
+4 -15
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@@ -13,20 +13,17 @@ module Liquid
# Liquid code inside will be parsed but not executed. This facilitates
# tooling support for features like code completion, linting, and inline
# documentation.
#
# For detailed documentation syntax and examples, see the
# [`LiquidDoc` reference](/docs/storefronts/themes/tools/liquid-doc).
#
# @liquid_syntax
# {% doc %}
# Renders a message.
#
# @param {string} foo - A string value.
# @param {string} [bar] - An optional string value.
# @param {string} foo - A foo value.
# @param {string} [bar] - An optional bar value.
#
# @example
# {% render 'message', foo: 'Hello', bar: 'World' %}
# {% enddoc %}
# {{ foo }}, {{ bar }}!
class Doc < Block
NO_UNEXPECTED_ARGS = /\A\s*\z/
@@ -36,8 +33,6 @@ module Liquid
end
def parse(tokens)
@body = +""
while (token = tokens.shift)
tag_name = token =~ BlockBody::FullTokenPossiblyInvalid && Regexp.last_match(2)
@@ -45,10 +40,8 @@ module Liquid
if tag_name == block_delimiter
parse_context.trim_whitespace = (token[-3] == WhitespaceControl)
@body << Regexp.last_match(1) if Regexp.last_match(1) != ""
return
end
@body << token unless token.empty?
end
raise_tag_never_closed(block_name)
@@ -59,11 +52,7 @@ module Liquid
end
def blank?
@body.empty?
end
def nodelist
[@body]
true
end
private
+2 -2
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@@ -20,8 +20,8 @@ module Liquid
# @liquid_syntax_keyword variable The current item in the array.
# @liquid_syntax_keyword array The array to iterate over.
# @liquid_syntax_keyword expression The expression to render for each iteration.
# @liquid_optional_param limit: [number] The number of iterations to perform.
# @liquid_optional_param offset: [number] The 1-based index to start iterating at.
# @liquid_optional_param limit [number] The number of iterations to perform.
# @liquid_optional_param offset [number] The 1-based index to start iterating at.
# @liquid_optional_param range [untyped] A custom numeric range to iterate over.
# @liquid_optional_param reversed [untyped] Iterate in reverse order.
class For < Block
+1 -1
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@@ -6,7 +6,7 @@ module Liquid
# @liquid_category theme
# @liquid_name include
# @liquid_summary
# Renders a [snippet](/themes/architecture/snippets).
# Renders a [snippet](/themes/architecture#snippets).
# @liquid_description
# Inside the snippet, you can access and alter variables that are [created](/docs/api/liquid/tags/variable-tags) outside of the
# snippet.
+1 -5
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@@ -7,14 +7,10 @@ module Liquid
# @liquid_name increment
# @liquid_summary
# Creates a new variable, with a default value of 0, that's increased by 1 with each subsequent call.
#
# > Caution:
# > Predefined Liquid objects can be overridden by variables with the same name.
# > To make sure that you can access all Liquid objects, make sure that your variable name doesn't match a predefined object's name.
# @liquid_description
# Variables that are declared with `increment` are unique to the [layout](/themes/architecture/layouts), [template](/themes/architecture/templates),
# or [section](/themes/architecture/sections) file that they're created in. However, the variable is shared across
# [snippets](/themes/architecture/snippets) included in the file.
# [snippets](/themes/architecture#snippets) included in the file.
#
# Similarly, variables that are created with `increment` are independent from those created with [`assign`](/docs/api/liquid/tags/assign)
# and [`capture`](/docs/api/liquid/tags/capture). However, `increment` and [`decrement`](/docs/api/liquid/tags/decrement) share
+1 -1
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@@ -6,7 +6,7 @@ module Liquid
# @liquid_category theme
# @liquid_name render
# @liquid_summary
# Renders a [snippet](/themes/architecture/snippets) or [app block](/themes/architecture/sections/section-schema#render-app-blocks).
# Renders a [snippet](/themes/architecture#snippets) or [app block](/themes/architecture/sections/section-schema#render-app-blocks).
# @liquid_description
# Inside snippets and app blocks, you can't directly access variables that are [created](/docs/api/liquid/tags/variable-tags) outside
# of the snippet or app block. However, you can [specify variables as parameters](/docs/api/liquid/tags/render#render-passing-variables-to-a-snippet)
+3 -3
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@@ -19,9 +19,9 @@ module Liquid
# @liquid_syntax_keyword variable The current item in the array.
# @liquid_syntax_keyword array The array to iterate over.
# @liquid_syntax_keyword expression The expression to render.
# @liquid_optional_param cols: [number] The number of columns that the table should have.
# @liquid_optional_param limit: [number] The number of iterations to perform.
# @liquid_optional_param offset: [number] The 1-based index to start iterating at.
# @liquid_optional_param cols [number] The number of columns that the table should have.
# @liquid_optional_param limit [number] The number of iterations to perform.
# @liquid_optional_param offset [number] The 1-based index to start iterating at.
# @liquid_optional_param range [untyped] A custom numeric range to iterate over.
class TableRow < Block
Syntax = /(\w+)\s+in\s+(#{QuotedFragment}+)/o
+1 -2
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@@ -2,7 +2,7 @@
module Liquid
# Templates are central to liquid.
# Interpreting templates is a two step process. First you compile the
# Interpretating templates is a two step process. First you compile the
# source code you got. During compile time some extensive error checking is performed.
# your code should expect to get some SyntaxErrors.
#
@@ -25,7 +25,6 @@ module Liquid
# :lax acts like liquid 2.5 and silently ignores malformed tags in most cases.
# :warn is the default and will give deprecation warnings when invalid syntax is used.
# :strict will enforce correct syntax.
# :rigid will is stricter even.
def error_mode=(mode)
Deprecations.warn("Template.error_mode=", "Environment#error_mode=")
Environment.default.error_mode = mode
+1 -1
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@@ -2,5 +2,5 @@
# frozen_string_literal: true
module Liquid
VERSION = "5.8.7"
VERSION = "5.7.3"
end
+1 -56
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@@ -560,23 +560,12 @@ class StandardFiltersTest < Minitest::Test
end
end
def test_map_with_value_property
array = [
{ "handle" => "alpha", "value" => "A" },
{ "handle" => "beta", "value" => "B" },
{ "handle" => "gamma", "value" => "C" }
]
assert_template_result("A B C", "{{ array | map: 'value' | join: ' ' }}", { "array" => array })
end
def test_map_returns_input_with_no_property
def test_map_returns_empty_with_no_property
foo = [
[1],
[2],
[3],
]
assert_raises(Liquid::ArgumentError) do
@filters.map(foo, nil)
end
@@ -1044,23 +1033,6 @@ class StandardFiltersTest < Minitest::Test
assert_template_result(expected_output, template, { "array" => array })
end
def test_where_with_empty_string_is_a_no_op
environment = { "array" => ["alpha", "beta", "gamma"] }
expected_output = "alpha beta gamma"
template = "{{ array | where: '' | join: ' ' }}"
assert_template_result(expected_output, template, environment)
end
def test_where_with_nil_is_a_no_op
environment = { "array" => ["alpha", "beta", "gamma"] }
template = "{{ array | where: nil | join: ' ' }}"
assert_raises(Liquid::ArgumentError) do
assert_template_result("alpha beta gamma", template, environment)
end
end
def test_where_with_value
array = [
{ "handle" => "alpha", "ok" => true },
@@ -1296,33 +1268,6 @@ class StandardFiltersTest < Minitest::Test
assert_template_result("0", "{{ input | sum: 'subtotal' }}", { "input" => input })
end
def test_sum_with_non_string_property
input = [{ true => 1 }, { 1.0 => 0.2, 1 => -0.3 }, { 1..5 => 0.4 }]
assert_equal(1, @filters.sum(input, true))
assert_equal(0.2, @filters.sum(input, 1.0))
assert_equal(-0.3, @filters.sum(input, 1))
assert_equal(0.4, @filters.sum(input, (1..5)))
assert_equal(0, @filters.sum(input, nil))
assert_equal(0, @filters.sum(input, ""))
end
def test_uniq_with_to_liquid_value
input = [StringDrop.new("foo"), StringDrop.new("bar"), "foo"]
expected = [StringDrop.new("foo"), StringDrop.new("bar")]
result = @filters.uniq(input)
assert_equal(expected, result)
end
def test_uniq_with_to_liquid_value_pick_correct_classes
input = ["foo", StringDrop.new("foo"), StringDrop.new("bar")]
expected = [String, StringDrop]
result = @filters.uniq(input).map(&:class)
assert_equal(expected, result)
end
private
def with_timezone(tz)
-15
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@@ -45,19 +45,4 @@ class CycleTagTest < Minitest::Test
assert_template_result("11", template)
end
def test_cycle_tag_with_error_mode
# QuotedFragment is more permissive than what Parser#expression allows.
[:lax, :strict].each do |mode|
with_error_mode(mode) do
assert_template_result("a", "{% cycle .5: 'a', 'b' %}")
assert_template_result("b", "{% assign 5 = 'b' %}{% cycle .5, .4 %}")
end
end
with_error_mode(:rigid) do
assert_raises(Liquid::SyntaxError) { Template.parse("{% cycle .5: 'a', 'b' %}") }
assert_raises(Liquid::SyntaxError) { Template.parse("{% cycle .5, .4 %}") }
end
end
end
-29
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@@ -146,35 +146,6 @@ class BooleanDrop < Liquid::Drop
end
end
class StringDrop < Liquid::Drop
include Comparable
def initialize(value)
super()
@value = value
end
def to_liquid_value
@value
end
def to_s
@value
end
def to_str
@value
end
def inspect
"#<StringDrop @value=#{@value.inspect}>"
end
def <=>(other)
to_liquid_value <=> Liquid::Utils.to_liquid_value(other)
end
end
class ErrorDrop < Liquid::Drop
def standard_error
raise Liquid::StandardError, 'standard error'
-25
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@@ -1,25 +0,0 @@
# frozen_string_literal: true
require 'test_helper'
class EnvironmentTest < Minitest::Test
include Liquid
class UnsubscribeFooter < Liquid::Tag
def render(_context)
'Unsubscribe Footer'
end
end
def test_custom_tag
email_environment = Liquid::Environment.build do |environment|
environment.register_tag("unsubscribe_footer", UnsubscribeFooter)
end
assert(email_environment.tags["unsubscribe_footer"])
assert(email_environment.tag_for_name("unsubscribe_footer"))
template = Liquid::Template.parse("{% unsubscribe_footer %}", environment: email_environment)
assert_equal('Unsubscribe Footer', template.render)
end
end
+5 -132
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@@ -20,21 +20,6 @@ class DocTagUnitTest < Minitest::Test
assert_template_result('', template)
end
def test_doc_tag_body_content
doc_content = " Documentation content\n @param {string} foo - test\n"
template_source = "{% doc %}#{doc_content}{% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal(doc_content, doc_tag.nodelist.first.to_s)
end
def test_doc_tag_does_not_support_extra_arguments
error = assert_raises(Liquid::SyntaxError) do
template = <<~LIQUID.chomp
@@ -131,20 +116,6 @@ class DocTagUnitTest < Minitest::Test
assert_template_result('', template)
end
def test_doc_tag_captures_token_before_enddoc
template_source = "{% doc %}{{ incomplete{% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal("{{ incomplete", doc_tag.nodelist.first.to_s)
end
def test_doc_tag_preserves_error_line_numbers
template = Liquid::Template.parse(<<~LIQUID.chomp, line_numbers: true)
{% doc %}
@@ -174,11 +145,11 @@ class DocTagUnitTest < Minitest::Test
def test_doc_tag_delimiter_handling
assert_template_result('', <<~LIQUID.chomp)
{%- if true -%}
{%- doc -%}
{%- docEXTRA -%}wut{% enddocEXTRA -%}xyz
{%- enddoc -%}
{%- endif -%}
{% if true %}
{% doc %}
{% docEXTRA %}wut{% enddocEXTRA %}xyz
{% enddoc %}
{% endif %}
LIQUID
assert_template_result('', "{% doc %}123{% enddoc xyz %}")
@@ -186,102 +157,4 @@ class DocTagUnitTest < Minitest::Test
assert_template_result('', "{% doc %}123{% enddoc\nxyz %}")
assert_template_result('', "{% doc %}123{% enddoc\n xyz enddoc %}")
end
def test_doc_tag_visitor
template_source = '{% doc %}{% enddoc %}'
assert_equal(
[Liquid::Doc],
visit(template_source),
)
end
def test_doc_tag_blank_with_empty_content
template_source = "{% doc %}{% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal(true, doc_tag.blank?)
end
def test_doc_tag_blank_with_content
template_source = "{% doc %}Some documentation{% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal(false, doc_tag.blank?)
end
def test_doc_tag_blank_with_whitespace_only
template_source = "{% doc %} {% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal(false, doc_tag.blank?)
end
def test_doc_tag_nodelist_returns_array_with_body
doc_content = "Documentation content\n@param {string} foo"
template_source = "{% doc %}#{doc_content}{% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal([doc_content], doc_tag.nodelist)
assert_equal(1, doc_tag.nodelist.length)
assert_equal(doc_content, doc_tag.nodelist.first)
end
def test_doc_tag_nodelist_with_empty_content
template_source = "{% doc %}{% enddoc %}"
doc_tag = nil
ParseTreeVisitor
.for(Template.parse(template_source).root)
.add_callback_for(Liquid::Doc) do |tag|
doc_tag = tag
end
.visit
assert_equal([""], doc_tag.nodelist)
assert_equal(1, doc_tag.nodelist.length)
end
private
def traversal(template)
ParseTreeVisitor
.for(Template.parse(template).root)
.add_callback_for(Liquid::Doc) do |tag|
tag_class = tag.class
tag_class
end
end
def visit(template)
traversal(template).visit.flatten.compact
end
end