Slice don't bind the route parameter

[tap1ra]

hi.
Support of Bind to Slice of Struct which was possible before this PR (#973) was supported.
Because BindData is always invoked, Struct was mandatory.

As another solution, I studied to make the route parameter Bind to each element Struct of Slice, but I stopped because I seemed unnatural.

Please comment if Bind does not assume Slice of Struct.
I will withdraw this PR and take action on the user side.

[codecov]

Codecov Report

Merging #980 into master will decrease coverage by 0.11%.
The diff coverage is 40%.

@@            Coverage Diff             @@
##           master     #980      +/-   ##
==========================================
- Coverage   76.67%   76.55%   -0.12%     
==========================================
  Files          27       27              
  Lines        2229     2231       +2     
==========================================
- Hits         1709     1708       -1     
- Misses        398      400       +2     
- Partials      122      123       +1

Impacted Files	Coverage Δ
bind.go	80.29% <40%> (-1.3%)	⬇️

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[pyama86]

fix: #891

[vishr]

@tap1ra thanks for your contribution, I took your changes and got it merged with mine.

[tap1ra]

Thanks!!!

[tap1ra]

@vishr

echo/bind.go

Lines 42 to 47 in b42edd7

	if err = b.bindPathData(i, c); err != nil {
	return NewHTTPError(http.StatusBadRequest, err.Error())
	}
	if err = b.bindPathData(i, c); err != nil {
	return NewHTTPError(http.StatusBadRequest, err.Error())
	}

What kind of intention is it?
(paste mistake?)

[vishr]

Yes, it was a copy paste mistake, I have fixed it.