Wildcards code insight

[iromeo]

Sometimes user expects that he is using already defined variable or rule section, but get error like: wildcard threads cannot be defined from input/output error. E.g. in:

rule:
   threads: 4
   params: extra = "--cores {threads}"

fails in snakemake, should be

...
   params: extra = lambda wildcards, threads: f"--core {threads}"

In this issue let's

• Determine wildcard names for rule Determine wildcard names for rule #184
• Highlight wildcard name after wildcards.foo same as in injection '{foo}' Highlight wildcard name after wildcards.foo same as in injection '{foo}' #227
• Inspection: warn if user tries to use input/output/threads/etc when user is supposed to use lambda fun (it is general use-case for Inspection: wildcards in shell script can be used only with wildcards. prefix. #57), see {thread} related example in the beginning of this post. It is kind of hint for user, not just unresolved reference or user can fail to notice wildcard highlighting (depends on color scheme)
• Inpsection: warn if wildcards set is different in input, output, log, message and other required sections (check snakemake sources & runtime behaviour). In such cases snakemake shows runtime error Inpsection: warn if wildcards set is different in input, output, log, message and other required sections (check snakemake sources & runtime behaviour).  #207
• Provide different highlighting for wildcard and non-wildcards wars in strings with {..} (PR #184 determine wildcard names for rule #225)
• Completion / resolve for wildcards names (PR #184 determine wildcard names for rule #225)
• Warn if wildcard name hides some global var name (only in place were wildcard variable is defined), Warn if wildcard name hides some global var name (only in place were wildcard variable is defined) #246
• Inspection: wildcards in shell script can be used only with wildcards. prefix. So it is hint for user, not just unresolved reference. Inspection: wildcards in shell script can be used only with wildcards. prefix. #57
• Don't detect wildcards in snakemake expand() method Don't detect wildcards in snakemake expand() method #229

[iromeo]

Read about wildcards detection here: #53 (comment)