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Added support to op-assign operators like '+='.

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This feature is implemented by expansion, not by dedicated operators, e.g. a*=2+x is exapanded as a=a*(2+x)
This commit is contained in:
Celestino Amoroso
2024-07-23 15:35:57 +02:00
parent 463e3634ba
commit 1a1a475dd8
4 changed files with 79 additions and 18 deletions
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ast.go
+6 -6
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@@ -45,19 +45,19 @@ func (expr *ast) String() string {
func (expr *ast) addTokens(tokens ...*Token) (err error) {
for _, tk := range tokens {
if err = expr.addToken(tk); err != nil {
if _, err = expr.addToken(tk); err != nil {
break
}
}
return
}
func (expr *ast) addToken(tk *Token) (err error) {
_, err = expr.addToken2(tk)
return
}
// func (expr *ast) addToken(tk *Token) (err error) {
// _, err = expr.addToken2(tk)
// return
// }
func (expr *ast) addToken2(tk *Token) (t *term, err error) {
func (expr *ast) addToken(tk *Token) (t *term, err error) {
if t = newTerm(tk); t != nil {
err = expr.addTerm(t)
} else {