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No overload matches StaticArray #1203

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stugol opened this issue Aug 17, 2015 · 4 comments
Closed

No overload matches StaticArray #1203

stugol opened this issue Aug 17, 2015 · 4 comments

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@stugol
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stugol commented Aug 17, 2015

The code at http://play.crystal-lang.org/#/r/bm0 causes no overload matches 'fn' with types StaticArray(Int32, 10)

@jhass
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jhass commented Aug 17, 2015

Related to #934

@asterite
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I think the N might not be matching there, but it should.

@miketheman
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#triage

This was reported against Crystal 0.7.6.

Running this code against 0.16.0 produces a Syntax error on the double-colon: https://play.crystal-lang.org/#/r/yfc
The :: notation was removed circa 0.12.0, notably in 2367653

Replacing the :: with a single : produces: https://play.crystal-lang.org/#/r/yfd

declaring the type of a local variable is not yet supported

This message is located in 3 locations:

spec/compiler/type_inference/instance_var_spec.cr
3032:      "declaring the type of a local variable is not yet supported"
src/compiler/crystal/semantic/main_visitor.cr
169:        node.raise "declaring the type of a local variable is not yet supported"
src/compiler/crystal/semantic/type_declaration_visitor.cr
107:        node.raise "declaring the type of a local variable is not yet supported"

making it a little more difficult in tracing exactly which one is being triggered.

@jhass
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jhass commented May 14, 2016

This usecase of :: got replaced with uninitialized: https://play.crystal-lang.org/#/r/yfu

keplersj added a commit to keplersj/crystal that referenced this issue May 21, 2016
* master: (69 commits)
  Fixed: splat restriction and double splat restriction didn't match empty tuple/named-tuple
  Fixed crystal-lang#1203: allow using free var to match the size of a static array
  Updated Changelog
  Compiler: don't remove old directories when compiling macro run programs. Related to crystal-lang#2625
  Fixed crystal-lang#2624: Running multiple macro runs doesn't work
  Docker: Preinstall git in released docker image
  Update and fix TypeNode macro method docs
  Fixed wrong datatype in 0.17 branch
  Docs: use `*` and `**` before type argument for Tuple and NamedTuple
  Docs: use `*` and `**` before type argument for Tuple and NamedTuple
  Compiler: allow a double splat restriction on a double splat argument
  Compiler: allow a splat restriction on a splat argument
  Compiler: allow restriction in double splat
  Compiler: guess type from captured block without restriction
  Fixed crystal-lang#731: initialize's default arguments are incorrectly evaluated at the class scope
  Fixed crystal-lang#2619: wrong codegen for global variable assignment in type declaration
  Compiler: allow a double splat restriction on a double splat argument
  Compiler: allow a splat restriction on a splat argument
  Compiler: allow restriction in double splat
  Compiler: guess type from captured block without restriction
  ...
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