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Combine Cursor with State

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This commit is contained in:
Brandon Dyck
2024-09-27 09:29:27 -06:00
parent 5c779c4a33
commit 82ade62274
8 changed files with 68 additions and 187 deletions
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11
parser_test.go
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@ -7,7 +7,6 @@ import (
"testing"
"git.codemonkeysoftware.net/b/gigaparsec"
"git.codemonkeysoftware.net/b/gigaparsec/cursor"
ptest "git.codemonkeysoftware.net/b/gigaparsec/test"
"git.codemonkeysoftware.net/b/gigaparsec/test/generator"
"github.com/shoenig/test"
@ -30,7 +29,7 @@ func hasPrefix(prefix []byte) func([]byte) bool {
func TestSlice(t *testing.T) {
assertParseFails := func(t rapid.TB, input []byte, p gigaparsec.Parser[byte, []byte]) {
t.Helper()
start := gigaparsec.MakeState(cursor.NewReaderAt(bytes.NewReader(input)))
start := gigaparsec.MakeState(bytes.NewReader(input))
result, err := p(start)
must.NoError(t, err)
success, _, _ := result.Status()
@ -55,9 +54,9 @@ func TestSlice(t *testing.T) {
}))
t.Run("fails when read fails", rapid.MakeCheck(func(t *rapid.T) {
expectedErr := generator.Error().Draw(t, "expectedErr")
c := ptest.ErrCursor[byte](expectedErr)
r := ptest.ErrReaderAt(expectedErr)
s := rapid.SliceOfN(rapid.Byte(), 0, 100).Draw(t, "s")
result, err := gigaparsec.MatchSlice(s)(gigaparsec.MakeState(c))
result, err := gigaparsec.MatchSlice(s)(gigaparsec.MakeState(r))
test.ErrorIs(t, err, expectedErr)
success, _, _ := result.Status()
test.False(t, success)
@ -66,7 +65,7 @@ func TestSlice(t *testing.T) {
input := rapid.SliceOfN(rapid.Byte(), 1, -1).Draw(t, "input")
sLen := rapid.IntRange(0, len(input)).Draw(t, "sLen")
s := input[:sLen]
start := gigaparsec.MakeState(cursor.NewReaderAt(bytes.NewReader(input)))
start := gigaparsec.MakeState(bytes.NewReader(input))
result, err := gigaparsec.MatchSlice(s)(start)
must.NoError(t, err)
@ -108,7 +107,7 @@ func TestBind(t *testing.T) {
p := makeParser(pConsume)
q := func(struct{}) gigaparsec.Parser[byte, struct{}] { return makeParser(qConsume) }
result, err := gigaparsec.Bind(p, q)(gigaparsec.MakeState(cursor.NewReaderAt(bytes.NewReader(nil))))
result, err := gigaparsec.Bind(p, q)(gigaparsec.MakeState(bytes.NewReader(nil)))
must.NoError(t, err)
must.EqOp(t, pConsume || qConsume, result.Consumed())
}))