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1 package gcss
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2
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3 import "io"
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4
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5 // mixinInvocation represents a mixin invocation.
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6 type mixinInvocation struct {
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7 elementBase
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8 name string
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9 paramValues []string
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10 }
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11
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12 // WriteTo writes the selector to the writer.
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13 func (mi *mixinInvocation) WriteTo(w io.Writer) (int64, error) {
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14 return 0, nil
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15 }
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16
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17 // decsParams returns the mixin's declarations and params.
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18 func (mi *mixinInvocation) decsParams() ([]*declaration, map[string]string) {
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19 md, ok := mi.Context().mixins[mi.name]
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20
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21 if !ok {
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22 return nil, nil
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23 }
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24
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25 params := make(map[string]string)
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26
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27 l := len(mi.paramValues)
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28
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29 for i, name := range md.paramNames {
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30 if i < l {
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31 params[name] = mi.paramValues[i]
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32 }
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33 }
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34
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35 return md.decs, params
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36 }
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37
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38 // selsParams returns the mixin's selectors and params.
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39 func (mi *mixinInvocation) selsParams() ([]*selector, map[string]string) {
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40 md, ok := mi.Context().mixins[mi.name]
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41
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42 if !ok {
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43 return nil, nil
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44 }
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45
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46 params := make(map[string]string)
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47
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48 l := len(mi.paramValues)
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49
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50 for i, name := range md.paramNames {
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51 if i < l {
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52 params[name] = mi.paramValues[i]
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53 }
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54 }
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55
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56 return md.sels, params
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57 }
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58
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59 // newMixinInvocation creates and returns a mixin invocation.
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60 func newMixinInvocation(ln *line, parent element) (*mixinInvocation, error) {
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61 name, paramValues, err := mixinNP(ln, false)
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62
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63 if err != nil {
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64 return nil, err
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65 }
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66
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67 return &mixinInvocation{
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68 elementBase: newElementBase(ln, parent),
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69 name: name,
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70 paramValues: paramValues,
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71 }, nil
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72 }
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