feat: add continue and break tokens

silverhairs · Aug 9, 2023 · 89ebf43 · 89ebf43
1 parent 688fec8
commit 89ebf43
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Showing 3 changed files with 18 additions and 7 deletions.
diff --git a/glox/lexer/lexer.go b/glox/lexer/lexer.go
@@ -114,6 +114,7 @@ func (s *Lexer) lex() error {
  }
  }
 
+
  return err
 }
 
@@ -253,7 +254,7 @@ func (s *Lexer) slash() error {
  } else if s.match('*') {
  for s.peek() != '*' && !s.isAtEnd() {
  s.advance()
- }
+ }
 
  if s.match('/') {
  literal := s.Source[s.start+2 : s.current-2]
@@ -267,3 +268,5 @@ func (s *Lexer) slash() error {
  }
  return nil
 }
+
+
diff --git a/glox/lexer/lexer_test.go b/glox/lexer/lexer_test.go
@@ -1,15 +1,15 @@
 package lexer
 
 import (
- "glox/token"
- "strings"
- "testing"
+"glox/token"
+"strings"
+"testing"
 )
 
 func TestTokenize(t *testing.T) {
- input := `
- let age = 12;
- 5 + 10
+input := `
+let age = 12;
+5 + 10
  1 - 2
  5 > 0
  1 < 12
@@ -32,6 +32,8 @@ func TestTokenize(t *testing.T) {
  many lines"
  and
  or
+ break
+ continue
  `
 
  tests := []struct {
@@ -96,6 +98,8 @@ func TestTokenize(t *testing.T) {
  many lines"`},
  {token.AND, "and"},
  {token.OR, "or"},
+ {token.BREAK, "break"},
+ {token.CONTINUE, "continue"},
  {token.EOF, ""},
  }
 

diff --git a/glox/token/token.go b/glox/token/token.go
@@ -42,6 +42,8 @@ const (
  FUNCTION = "FUNCTION"
  FOR = "FOR"
  OR = "OR"
+ BREAK = "BREAK"
+ CONTINUE = "CONTINUE"
  NIL = "NIL"
  PRINT = "PRINT"
  RETURN = "RETURN"
@@ -82,6 +84,8 @@ var keywords = map[string]TokenType{
  "let": LET,
  "while": WHILE,
  "var": LET,
+ "break": BREAK,
+ "continue": CONTINUE,
 }
 
 func LookupIdentifier(keyword string) TokenType {