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set nya as 0 #3

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merged 1 commit into from
Mar 11, 2024
Merged

set nya as 0 #3

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1 change: 1 addition & 0 deletions .gitignore
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Expand Up @@ -14,3 +14,4 @@

# Dependency directories (remove the comment below to include it)
# vendor/
main.wasm
2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -55,7 +55,7 @@ sada

* `da` True in boolean
* `nye` False in boolean
* `nya` null, nil
* `nya` null, nil, 0
* `unu` one, 1
* `du` two, 2
* `unudu` three, 3
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3 changes: 3 additions & 0 deletions elementary.go
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Expand Up @@ -94,6 +94,9 @@ func truthExpr(t bool) *Expr {
}

func (c *Context) getNumber(expr *Expr) int {
if expr.isNya() {
return 0
}
if !expr.isNumber() {
errorf("expect number; got %v", expr)
}
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4 changes: 4 additions & 0 deletions eval.go
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Expand Up @@ -344,6 +344,10 @@ func (e *Expr) isTrue() bool {
return e != nil && e.sada == tokDa
}

func (e *Expr) isNya() bool {
return e == nil || e.sada == tokNya
}

func (e *Expr) length() int {
if e == nil {
return 0
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