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Added overloaded support for str * int
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This commit is contained in:
Chuck Smith
2024-03-23 10:03:31 -04:00
parent 16ca2acf49
commit 803d717379
4 changed files with 30 additions and 1 deletions
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13
evaluator/evaluator.go
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@@ -4,6 +4,7 @@ import (
"fmt"
"monkey/ast"
"monkey/object"
"strings"
)
var (
@@ -304,6 +305,18 @@ func evalIntegerPrefixOperatorExpression(operator string, right object.Object) o
func evalInfixExpression(operator string, left, right object.Object) object.Object {
switch {
// " " * 4
case left.Type() == object.STRING_OBJ && right.Type() == object.INTEGER_OBJ:
leftVal := left.(*object.String).Value
rightVal := right.(*object.Integer).Value
return &object.String{Value: strings.Repeat(leftVal, int(rightVal))}
// 4 * " "
case left.Type() == object.INTEGER_OBJ && right.Type() == object.STRING_OBJ:
leftVal := left.(*object.Integer).Value
rightVal := right.(*object.String).Value
return &object.String{Value: strings.Repeat(rightVal, int(leftVal))}
case left.Type() == object.BOOLEAN_OBJ && right.Type() == object.BOOLEAN_OBJ:
return evalBooleanInfixExpression(operator, left, right)
case left.Type() == object.INTEGER_OBJ && right.Type() == object.INTEGER_OBJ: