UnflavoredMeson/monkey
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add tons of builtin helpers and array operations.
Some checks failed
Test / build (push) Waiting to run
Details
Build / build (push) Has been cancelled
Details

Browse Source
This commit is contained in:
Chuck Smith
2024-03-24 12:11:46 -04:00
parent c9d96236dd
commit 99cea83f57
23 changed files with 413 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
evaluator/evaluator.go
View File

@@ -306,8 +306,29 @@ func evalIntegerPrefixOperatorExpression(operator string, right object.Object) o
func evalInfixExpression(operator string, left, right object.Object) object.Object {
switch {
// {"a": 1} + {"b": 2}
case operator == "+" && left.Type() == object.HASH_OBJ && right.Type() == object.HASH_OBJ:
leftVal := left.(*object.Hash).Pairs
rightVal := right.(*object.Hash).Pairs
pairs := make(map[object.HashKey]object.HashPair)
for k, v := range leftVal {
pairs[k] = v
}
for k, v := range rightVal {
pairs[k] = v
}
return &object.Hash{Pairs: pairs}
// [1] + [2]
case operator == "+" && left.Type() == object.ARRAY_OBJ && right.Type() == object.ARRAY_OBJ:
leftVal := left.(*object.Array).Elements
rightVal := right.(*object.Array).Elements
elements := make([]object.Object, len(leftVal)+len(rightVal))
elements = append(leftVal, rightVal...)
return &object.Array{Elements: elements}
// [1] * 3
case left.Type() == object.ARRAY_OBJ && right.Type() == object.INTEGER_OBJ:
case operator == "*" && left.Type() == object.ARRAY_OBJ && right.Type() == object.INTEGER_OBJ:
leftVal := left.(*object.Array).Elements
rightVal := int(right.(*object.Integer).Value)
elements := leftVal
@@ -316,7 +337,7 @@ func evalInfixExpression(operator string, left, right object.Object) object.Obje
}
return &object.Array{Elements: elements}
// 3 * [1]
case left.Type() == object.INTEGER_OBJ && right.Type() == object.ARRAY_OBJ:
case operator == "*" && left.Type() == object.INTEGER_OBJ && right.Type() == object.ARRAY_OBJ:
leftVal := int(left.(*object.Integer).Value)
rightVal := right.(*object.Array).Elements
elements := rightVal
@@ -326,12 +347,12 @@ func evalInfixExpression(operator string, left, right object.Object) object.Obje
return &object.Array{Elements: elements}
// " " * 4
case left.Type() == object.STRING_OBJ && right.Type() == object.INTEGER_OBJ:
case operator == "*" && 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:
case operator == "*" && 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))}