30 lines
570 B
Go
30 lines
570 B
Go
package object
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import (
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"fmt"
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"os"
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)
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// Assert ...
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func Assert(args ...Object) Object {
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if len(args) != 2 {
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return newError("wrong number of arguments. got=%d, want=2",
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len(args))
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}
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if args[0].Type() != BOOLEAN_OBJ {
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return newError("argument #1 to `assert` must be BOOLEAN, got %s",
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args[0].Type())
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}
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if args[1].Type() != STRING_OBJ {
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return newError("argument #2 to `assert` must be STRING, got %s",
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args[0].Type())
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}
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if !args[0].(*Boolean).Value {
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fmt.Printf("Assertion Error: %s", args[1].(*String).Value)
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os.Exit(1)
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}
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return nil
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}
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