diff options
Diffstat (limited to 'vendor/github.com/vektah/gqlgen/neelance/common/literals.go')
-rw-r--r-- | vendor/github.com/vektah/gqlgen/neelance/common/literals.go | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/vendor/github.com/vektah/gqlgen/neelance/common/literals.go b/vendor/github.com/vektah/gqlgen/neelance/common/literals.go deleted file mode 100644 index 55619ba0..00000000 --- a/vendor/github.com/vektah/gqlgen/neelance/common/literals.go +++ /dev/null @@ -1,206 +0,0 @@ -package common - -import ( - "strconv" - "strings" - "text/scanner" - - "github.com/vektah/gqlgen/neelance/errors" -) - -type Literal interface { - Value(vars map[string]interface{}) interface{} - String() string - Location() errors.Location -} - -type BasicLit struct { - Type rune - Text string - Loc errors.Location -} - -func (lit *BasicLit) Value(vars map[string]interface{}) interface{} { - switch lit.Type { - case scanner.Int: - value, err := strconv.ParseInt(lit.Text, 10, 64) - if err != nil { - panic(err) - } - return int(value) - - case scanner.Float: - value, err := strconv.ParseFloat(lit.Text, 64) - if err != nil { - panic(err) - } - return value - - case scanner.String: - value, err := strconv.Unquote(lit.Text) - if err != nil { - panic(err) - } - return value - - case scanner.Ident: - switch lit.Text { - case "true": - return true - case "false": - return false - default: - return lit.Text - } - - default: - panic("invalid literal") - } -} - -func (lit *BasicLit) String() string { - return lit.Text -} - -func (lit *BasicLit) Location() errors.Location { - return lit.Loc -} - -type ListLit struct { - Entries []Literal - Loc errors.Location -} - -func (lit *ListLit) Value(vars map[string]interface{}) interface{} { - entries := make([]interface{}, len(lit.Entries)) - for i, entry := range lit.Entries { - entries[i] = entry.Value(vars) - } - return entries -} - -func (lit *ListLit) String() string { - entries := make([]string, len(lit.Entries)) - for i, entry := range lit.Entries { - entries[i] = entry.String() - } - return "[" + strings.Join(entries, ", ") + "]" -} - -func (lit *ListLit) Location() errors.Location { - return lit.Loc -} - -type ObjectLit struct { - Fields []*ObjectLitField - Loc errors.Location -} - -type ObjectLitField struct { - Name Ident - Value Literal -} - -func (lit *ObjectLit) Value(vars map[string]interface{}) interface{} { - fields := make(map[string]interface{}, len(lit.Fields)) - for _, f := range lit.Fields { - fields[f.Name.Name] = f.Value.Value(vars) - } - return fields -} - -func (lit *ObjectLit) String() string { - entries := make([]string, 0, len(lit.Fields)) - for _, f := range lit.Fields { - entries = append(entries, f.Name.Name+": "+f.Value.String()) - } - return "{" + strings.Join(entries, ", ") + "}" -} - -func (lit *ObjectLit) Location() errors.Location { - return lit.Loc -} - -type NullLit struct { - Loc errors.Location -} - -func (lit *NullLit) Value(vars map[string]interface{}) interface{} { - return nil -} - -func (lit *NullLit) String() string { - return "null" -} - -func (lit *NullLit) Location() errors.Location { - return lit.Loc -} - -type Variable struct { - Name string - Loc errors.Location -} - -func (v Variable) Value(vars map[string]interface{}) interface{} { - return vars[v.Name] -} - -func (v Variable) String() string { - return "$" + v.Name -} - -func (v *Variable) Location() errors.Location { - return v.Loc -} - -func ParseLiteral(l *Lexer, constOnly bool) Literal { - loc := l.Location() - switch l.Peek() { - case '$': - if constOnly { - l.SyntaxError("variable not allowed") - panic("unreachable") - } - l.ConsumeToken('$') - return &Variable{l.ConsumeIdent(), loc} - - case scanner.Int, scanner.Float, scanner.String, scanner.Ident: - lit := l.ConsumeLiteral() - if lit.Type == scanner.Ident && lit.Text == "null" { - return &NullLit{loc} - } - lit.Loc = loc - return lit - case '-': - l.ConsumeToken('-') - lit := l.ConsumeLiteral() - lit.Text = "-" + lit.Text - lit.Loc = loc - return lit - case '[': - l.ConsumeToken('[') - var list []Literal - for l.Peek() != ']' { - list = append(list, ParseLiteral(l, constOnly)) - } - l.ConsumeToken(']') - return &ListLit{list, loc} - - case '{': - l.ConsumeToken('{') - var fields []*ObjectLitField - for l.Peek() != '}' { - name := l.ConsumeIdentWithLoc() - l.ConsumeToken(':') - value := ParseLiteral(l, constOnly) - fields = append(fields, &ObjectLitField{name, value}) - } - l.ConsumeToken('}') - return &ObjectLit{fields, loc} - - default: - l.SyntaxError("invalid value") - panic("unreachable") - } -} |