43 lines
781 B
Go
43 lines
781 B
Go
package loxgo
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import (
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"errors"
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"os"
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"git.red-panda.pet/pandaware/lox-go/lexer"
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"git.red-panda.pet/pandaware/lox-go/parser"
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"git.red-panda.pet/pandaware/lox-go/reporter"
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"git.red-panda.pet/pandaware/lox-go/runtime"
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)
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func RunFile(filename string) error {
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bs, err := os.ReadFile(filename)
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if err != nil {
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return err
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}
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if err := Run(string(bs)); err != nil {
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return err
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}
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return nil
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}
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func Run(source string) error {
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s := lexer.New(source)
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tokens, ok := s.ScanTokens()
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if !ok {
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return errors.New("lexer error")
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}
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p := parser.New(tokens)
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expr, err := p.Parse()
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if err != nil {
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return errors.New("parser error")
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}
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interpreter := runtime.NewInterpreter()
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reporter.Debug(0, "interpreter", "stdin", interpreter.Evaluate(expr).Debug())
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return nil
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}
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