Spelling corrections
Interpreter can now evaluate Booleans git-svn-id: https://svn.tlawal.org/svn/monkey@45 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
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@ -17,6 +17,9 @@ func Eval(node ast.Node) object.Object {
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// Expressions
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// Expressions
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case *ast.IntegerLiteral:
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case *ast.IntegerLiteral:
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return &object.Integer{Value: node.Value}
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return &object.Integer{Value: node.Value}
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case *ast.Boolean:
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return &object.Boolean{Value: node.Value}
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}
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}
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return nil
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return nil
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@ -22,6 +22,22 @@ func TestEvalIntegerExpression(l_test *testing.T) {
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}
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}
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}
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}
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func TestEvalBooleanExpression(l_test *testing.T){
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tests := []struct {
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input string
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expected bool
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}{
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{"true", true},
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{"false", false},
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}
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for _, tt := range tests{
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evaluated := test_eval(tt.input)
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test_boolean_object(l_test, evaluated, tt.expected)
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}
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}
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// Helpers
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// Helpers
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func test_eval(input string) object.Object {
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func test_eval(input string) object.Object {
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l_lexer := lexer.New(input)
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l_lexer := lexer.New(input)
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@ -43,3 +59,17 @@ func test_integer_object(l_test *testing.T, l_object object.Object, expected int
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}
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}
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return true
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return true
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}
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}
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func test_boolean_object(l_test *testing.T, l_object object.Object, expected bool)bool {
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result, ok := l_object.(*object.Boolean)
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if !ok {
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l_test.Errorf("object is not Boolean, got=%T (%+v)", l_object, l_object)
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return false
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}
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if result.Value != expected {
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l_test.Errorf("object has wrong value, got=%T, want=%t", result.Value, expected)
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return false
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}
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return true
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}
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@ -37,7 +37,7 @@ func (b *Boolean) Type() ObjectType {
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return BOOLEAN_OBJECT
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return BOOLEAN_OBJECT
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}
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}
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func (b *Boolean) Inpect() string {
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func (b *Boolean) Inspect() string {
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return fmt.Sprintf("%t", b.Value)
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return fmt.Sprintf("%t", b.Value)
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}
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}
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@ -48,6 +48,6 @@ func (n *Null) Type() ObjectType {
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return NULL_OBJECT
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return NULL_OBJECT
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}
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}
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func (n *Null) Inpect() string {
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func (n *Null) Inspect() string {
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return "null"
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return "null"
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}
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}
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