feat: expose MissingFundsErr (#107)

ascandone · web-flow · commit aee5218fd7df · 2026-01-28T17:48:29.000+01:00
diff --git a/internal/interpreter/interpreter_error.go b/internal/interpreter/interpreter_error.go
@@ -27,6 +27,11 @@ func (e MissingFundsErr) Error() string {
 	return fmt.Sprintf("Not enough funds. Needed [%s %s] (only [%s %s] available)", e.Asset, e.Needed.String(), e.Asset, e.Available.String())
 }
 
+func (e MissingFundsErr) Is(target error) bool {
+	_, ok := target.(MissingFundsErr)
+	return ok
+}
+
 type InvalidMonetaryLiteral struct {
 	parser.Range
 	Source string
diff --git a/numscript.go b/numscript.go
@@ -72,6 +72,7 @@ type (
 	Value = interpreter.Value
 
 	InterpreterError = interpreter.InterpreterError
+	MissingFundsErr  = interpreter.MissingFundsErr
 )
 
 func (p ParseResult) Run(ctx context.Context, vars VariablesMap, store Store) (ExecutionResult, InterpreterError) {

Original file line number	Diff line number	Diff line change
`@@ -72,6 +72,7 @@ type (`
`72`	`72`	`Value = interpreter.Value`
`73`	`73`
`74`	`74`	`InterpreterError = interpreter.InterpreterError`
	`75`	`+ MissingFundsErr = interpreter.MissingFundsErr`
`75`	`76`	`)`
`76`	`77`
`77`	`78`	`func (p ParseResult) Run(ctx context.Context, vars VariablesMap, store Store) (ExecutionResult, InterpreterError) {`