diff options
Diffstat (limited to 'vendor/github.com/vektah/gqlgen/neelance/common/lexer.go')
-rw-r--r-- | vendor/github.com/vektah/gqlgen/neelance/common/lexer.go | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/vendor/github.com/vektah/gqlgen/neelance/common/lexer.go b/vendor/github.com/vektah/gqlgen/neelance/common/lexer.go deleted file mode 100644 index fdc1e622..00000000 --- a/vendor/github.com/vektah/gqlgen/neelance/common/lexer.go +++ /dev/null @@ -1,122 +0,0 @@ -package common - -import ( - "fmt" - "text/scanner" - - "github.com/vektah/gqlgen/neelance/errors" -) - -type syntaxError string - -type Lexer struct { - sc *scanner.Scanner - next rune - descComment string -} - -type Ident struct { - Name string - Loc errors.Location -} - -func New(sc *scanner.Scanner) *Lexer { - l := &Lexer{sc: sc} - l.Consume() - return l -} - -func (l *Lexer) CatchSyntaxError(f func()) (errRes *errors.QueryError) { - defer func() { - if err := recover(); err != nil { - if err, ok := err.(syntaxError); ok { - errRes = errors.Errorf("syntax error: %s", err) - errRes.Locations = []errors.Location{l.Location()} - return - } - panic(err) - } - }() - - f() - return -} - -func (l *Lexer) Peek() rune { - return l.next -} - -func (l *Lexer) Consume() { - l.descComment = "" - for { - l.next = l.sc.Scan() - if l.next == ',' { - continue - } - if l.next == '#' { - if l.sc.Peek() == ' ' { - l.sc.Next() - } - if l.descComment != "" { - l.descComment += "\n" - } - for { - next := l.sc.Next() - if next == '\n' || next == scanner.EOF { - break - } - l.descComment += string(next) - } - continue - } - break - } -} - -func (l *Lexer) ConsumeIdent() string { - name := l.sc.TokenText() - l.ConsumeToken(scanner.Ident) - return name -} - -func (l *Lexer) ConsumeIdentWithLoc() Ident { - loc := l.Location() - name := l.sc.TokenText() - l.ConsumeToken(scanner.Ident) - return Ident{name, loc} -} - -func (l *Lexer) ConsumeKeyword(keyword string) { - if l.next != scanner.Ident || l.sc.TokenText() != keyword { - l.SyntaxError(fmt.Sprintf("unexpected %q, expecting %q", l.sc.TokenText(), keyword)) - } - l.Consume() -} - -func (l *Lexer) ConsumeLiteral() *BasicLit { - lit := &BasicLit{Type: l.next, Text: l.sc.TokenText()} - l.Consume() - return lit -} - -func (l *Lexer) ConsumeToken(expected rune) { - if l.next != expected { - l.SyntaxError(fmt.Sprintf("unexpected %q, expecting %s", l.sc.TokenText(), scanner.TokenString(expected))) - } - l.Consume() -} - -func (l *Lexer) DescComment() string { - return l.descComment -} - -func (l *Lexer) SyntaxError(message string) { - panic(syntaxError(message)) -} - -func (l *Lexer) Location() errors.Location { - return errors.Location{ - Line: l.sc.Line, - Column: l.sc.Column, - } -} |