1 files changed, 69 insertions, 0 deletions
diff --git a/vendor/github.com/graphql-go/graphql/gqlerrors/syntax.go b/vendor/github.com/graphql-go/graphql/gqlerrors/syntax.go
new file mode 100644
index 00000000..abad6ade
--- /dev/null
+++ b/vendor/github.com/graphql-go/graphql/gqlerrors/syntax.go
@@ -0,0 +1,69 @@
+package gqlerrors
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/graphql-go/graphql/language/ast"
+	"github.com/graphql-go/graphql/language/location"
+	"github.com/graphql-go/graphql/language/source"
+)
+
+func NewSyntaxError(s *source.Source, position int, description string) *Error {
+	l := location.GetLocation(s, position)
+	return NewError(
+		fmt.Sprintf("Syntax Error %s (%d:%d) %s\n\n%s", s.Name, l.Line, l.Column, description, highlightSourceAtLocation(s, l)),
+		[]ast.Node{},
+		"",
+		s,
+		[]int{position},
+		nil,
+	)
+}
+
+// printCharCode here is slightly different from lexer.printCharCode()
+func printCharCode(code rune) string {
+	// print as ASCII for printable range
+	if code >= 0x0020 {
+		return fmt.Sprintf(`%c`, code)
+	}
+	// Otherwise print the escaped form. e.g. `"\\u0007"`
+	return fmt.Sprintf(`\u%04X`, code)
+}
+func printLine(str string) string {
+	strSlice := []string{}
+	for _, runeValue := range str {
+		strSlice = append(strSlice, printCharCode(runeValue))
+	}
+	return fmt.Sprintf(`%s`, strings.Join(strSlice, ""))
+}
+func highlightSourceAtLocation(s *source.Source, l location.SourceLocation) string {
+	line := l.Line
+	prevLineNum := fmt.Sprintf("%d", (line - 1))
+	lineNum := fmt.Sprintf("%d", line)
+	nextLineNum := fmt.Sprintf("%d", (line + 1))
+	padLen := len(nextLineNum)
+	lines := regexp.MustCompile("\r\n|[\n\r]").Split(string(s.Body), -1)
+	var highlight string
+	if line >= 2 {
+		highlight += fmt.Sprintf("%s: %s\n", lpad(padLen, prevLineNum), printLine(lines[line-2]))
+	}
+	highlight += fmt.Sprintf("%s: %s\n", lpad(padLen, lineNum), printLine(lines[line-1]))
+	for i := 1; i < (2 + padLen + l.Column); i++ {
+		highlight += " "
+	}
+	highlight += "^\n"
+	if line < len(lines) {
+		highlight += fmt.Sprintf("%s: %s\n", lpad(padLen, nextLineNum), printLine(lines[line]))
+	}
+	return highlight
+}
+
+func lpad(l int, s string) string {
+	var r string
+	for i := 1; i < (l - len(s) + 1); i++ {
+		r += " "
+	}
+	return r + s
+}