File: issue2244.txtar

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golang-github-cue-lang-cue 0.14.2-1
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-- in.cue --
package x

import (
	"strings"
)

_#matchPattern: {
	#pattern: string
	[
		// can't remove this builtin call
		if strings.HasSuffix(#pattern, "*") {

			// this let is required _within_ the if block
			// i.e. it can't be "inlined" with the if that
			// currently contains it
			let prefix = strings.TrimSuffix(#pattern, "*")

			prefix
		},
		"'\(#pattern)'",
	][0]
}

_#isReleaseTag: _#matchPattern & {#pattern: "refs/tags/v*", _}

#step: {
	if: number | string
}

m: #step & {
	if: _#isReleaseTag
}
-- out/eval/stats --
Leaks:  16
Freed:  17
Reused: 13
Allocs: 20
Retain: 30

Unifications: 24
Conjuncts:    58
Disjuncts:    40
-- diff/explanation --
New evaluator should ultimately disallow new definitions in closed structs
and not allow #pattern in #step
-- out/evalalpha --
(struct){
  _#matchPattern(:x): (_|_){
    // [incomplete] error in call to strings.HasSuffix: non-concrete value string:
    //     ./in.cue:11:6
    //     ./in.cue:8:12
    #pattern: (string){ string }
  }
  _#isReleaseTag(:x): (string){
    "refs/tags/v"
    #pattern: (string){ "refs/tags/v*" }
    let prefix#1 = (string){ "refs/tags/v" }
  }
  #step: (#struct){
    if: ((string|number)){ |((number){ number }, (string){ string }) }
  }
  m: (#struct){
    if: (string){
      "refs/tags/v"
      #pattern: (string){ "refs/tags/v*" }
      let prefix#1 = (string){ "refs/tags/v" }
    }
  }
}
-- diff/-out/evalalpha<==>+out/eval --
diff old new
--- old
+++ new
@@ -1,6 +1,6 @@
 (struct){
   _#matchPattern(:x): (_|_){
-    // [incomplete] _#matchPattern: error in call to strings.HasSuffix: non-concrete value string:
+    // [incomplete] error in call to strings.HasSuffix: non-concrete value string:
     //     ./in.cue:11:6
     //     ./in.cue:8:12
     #pattern: (string){ string }
-- out/eval --
(struct){
  _#matchPattern(:x): (_|_){
    // [incomplete] _#matchPattern: error in call to strings.HasSuffix: non-concrete value string:
    //     ./in.cue:11:6
    //     ./in.cue:8:12
    #pattern: (string){ string }
  }
  _#isReleaseTag(:x): (string){
    "refs/tags/v"
    #pattern: (string){ "refs/tags/v*" }
    let prefix#1 = (string){ "refs/tags/v" }
  }
  #step: (#struct){
    if: ((string|number)){ |((number){ number }, (string){ string }) }
  }
  m: (#struct){
    if: (string){
      "refs/tags/v"
      #pattern: (string){ "refs/tags/v*" }
      let prefix#1 = (string){ "refs/tags/v" }
    }
  }
}
-- out/compile --
--- in.cue
{
  _#matchPattern: {
    #pattern: string
    [
      if 〈import;strings〉.HasSuffix(〈1;#pattern〉, "*") {
        let prefix#1 = 〈import;strings〉.TrimSuffix(〈2;#pattern〉, "*")
        〈0;let prefix#1〉
      },
      "'\(〈1;#pattern〉)'",
    ][0]
  }
  _#isReleaseTag: (〈0;_#matchPattern〉 & {
    #pattern: "refs/tags/v*"
    _
  })
  #step: {
    if: (number|string)
  }
  m: (〈0;#step〉 & {
    if: 〈1;_#isReleaseTag〉
  })
}