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View Code? Open in Web Editor NEWA crystal port of the Ruby Language Toolkit
Home Page: https://ziprandom.github.io/cltk
License: Other
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Error when requiring CLTK
On a very simple file:
require "cltk"
print "hi"I get this error:
Error in src/cryshlang_tester.cr:2: while requiring "cltk"
require "cltk"
^
in lib/cltk/src/cltk.cr:1: while requiring "./cltk/**"
require "./cltk/**"
^
in lib/cltk/src/cltk/lexers/calculator.cr:35: expanding macro
rule(/[0-9]+/) { |t| {:NUM, t.to_i32}}
^~~~
in lib/cltk/src/cltk/lexers/calculator.cr:35: expanding macro
rule(/[0-9]+/) { |t| {:NUM, t.to_i32}}
^
in macro 'rule' /home/marble/projects/crysh/lib/cltk/src/cltk/scanner.cr:179, line 2:
1.
> 2. rex_rule("[0-9]+", :default) do |t|
3. {:NUM, t.to_i32}
4. end
5.
6.
expanding macro
in macro 'rule' /home/marble/projects/crysh/lib/cltk/src/cltk/scanner.cr:179, line 2:
1.
> 2. rex_rule("[0-9]+", :default) do |t|
3. {:NUM, t.to_i32}
4. end
5.
6.
expanding macro
in macro 'rex_rule' /home/marble/projects/crysh/lib/cltk/src/cltk/scanner.cr:250, line 2:
1.
> 2. @@callbacks.unshift(block_to_proc do |t|
3. {:NUM, t.to_i32}
4. end)
5.
6. @@rx[:default] ||= Array({DFA::DFA::DState, Int32?}).new
7. @@rx[:default].unshift ({ DFA::RegExp.new("[0-9]+").dfa,
8.
9. @@callbacks.size
10.
11. })
12.
expanding macro
in macro 'rex_rule' /home/marble/projects/crysh/lib/cltk/src/cltk/scanner.cr:250, line 2:
1.
> 2. @@callbacks.unshift(block_to_proc do |t|
3. {:NUM, t.to_i32}
4. end)
5.
6. @@rx[:default] ||= Array({DFA::DFA::DState, Int32?}).new
7. @@rx[:default].unshift ({ DFA::RegExp.new("[0-9]+").dfa,
8.
9. @@callbacks.size
10.
11. })
12.
expanding macro
in macro 'block_to_proc' /home/marble/projects/crysh/lib/cltk/src/cltk/scanner.cr:275, line 2:
1.
> 2. ProcType.new do |t, env|
3. env.yield_with_self do
4. {:NUM, t.to_i32}
5. end
6. end
7.
8.
expected block to return (Tuple(Symbol) | Tuple(Symbol, String | Nil) | Nil), not Tuple(Symbol, Int32)
This was on Crystal 0.24.2 BTW
Serialization support?
Prior to the crystalize function being removed, it seemed like that was the intended way to achieve serialization and make CLTK launch faster. I'm currently using CLTK for a shell and it's a significant time loss loading the grammar every time. It takes over a second to load everything for my grammar.
What is the intended way to replace the lost functionality of the crystalize method?
Allow AST values to have defaults
It would be really handy if you could provide default values for values listed in an AST node. Something like:
class Def < CLTK::ASTNode
values({
name: String,
visibility: Bool = Visibility::Public
)}
endor can you already? Sorry, the docs are lacking a little.
Doesn't parse with Crystal 1.9.2
f:\programming\source\repos\git\crystal_repos\cltk>crystal spec
Showing last frame. Use --error-trace for full trace.
In lib\crystal-dfa\src\core_ext\range.cr:51:8
51 | struct Tuple(T)
^
Error: type var must be *T, not T
f:\programming\source\repos\git\crystal_repos\cltk
CLTK::Scanner dislikes some alternations
Some patterns give this error:
cast from DFA::AST::LiteralNode to DFA::AST::AlternationNode failed, at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/parser.cr:111:15:111 (TypeCastError)
0x555b67cd0843: consumeLastOrAlternative at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/parser.cr 112:45
0x555b67cceb4c: parse at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/parser.cr 41:13
0x555b67cce5b2: parse at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/parser.cr 12:13
0x555b67cce57f: parse at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/parser.cr 11:5
0x555b67cce52d: initialize at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/regexp.cr 15:11
0x555b67cce501: new at /home/hinrik/src/fjo/lib/crystal-dfa/src/crystal-dfa/regexp.cr 12:5
0x555b67c5963e: __crystal_main at /home/hinrik/src/fjo/bin/test.cr 11:5
0x555b67c693d9: main at /opt/crystal/src/main.cr 12:15
0x7fb5f50612b1: __libc_start_main at ??
0x555b67c5277a: _start at ??
0x0: ??? at ??
Here's a minimal test case:
module CLTK
alias TokenValue = (String|Int32)?
end
require "cltk"
module Fjo
class Lexer < CLTK::Scanner
extend CLTK::Scanner::LexerCompatibility
rule(/(?:a)|b/) { { :FOO } } # works
rule(/b|(?:a)/) { { :BAR } } # doesn't work
end
end
Specs do not pass on .31
➜ cltk git:(master) ✗ crystal spec
Showing last frame. Use --error-trace for full trace.
In spec/cltk/parser_spec.cr:272:5
272 | @ops : Array(
^---
Error: instance variable '@ops' of RotatingCalc::Environment must be Array(Proc(Int32, Int32, Int32)), not (Array(Proc(Int32, Int32, Float64) | Proc(Int32, Int32, Int32)) | Array(Proc(Int32, Int32, Int32)))
➜ cltk git:(master) ✗
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