chore: migrate to gitea

vendor/github.com/bytedance/sonic/ast/error.go

@@ -0,0 +1,134 @@
+package ast
+
+import (
+    `fmt`
+    `strings`
+    `unsafe`
+
+    `github.com/bytedance/sonic/internal/native/types`
+)
+
+
+func newError(err types.ParsingError, msg string) *Node {
+    return &Node{
+        t: V_ERROR,
+        l: uint(err),
+        p: unsafe.Pointer(&msg),
+    }
+}
+
+func newErrorPair(err SyntaxError) *Pair {
+   return &Pair{0, "", *newSyntaxError(err)}
+}
+
+// Error returns error message if the node is invalid
+func (self Node) Error() string {
+    if self.t != V_ERROR {
+        return ""
+    } else {
+        return *(*string)(self.p)
+    } 
+}
+
+func newSyntaxError(err SyntaxError) *Node {
+    msg := err.Description()
+    return &Node{
+        t: V_ERROR,
+        l: uint(err.Code),
+        p: unsafe.Pointer(&msg),
+    }
+}
+
+func (self *Parser) syntaxError(err types.ParsingError) SyntaxError {
+    return SyntaxError{
+        Pos : self.p,
+        Src : self.s,
+        Code: err,
+    }
+}
+
+func unwrapError(err error) *Node {
+    if se, ok := err.(*Node); ok {
+        return se
+    }else if sse, ok := err.(Node); ok {
+        return &sse
+    } else {
+        msg := err.Error()
+        return &Node{
+            t: V_ERROR,
+            p: unsafe.Pointer(&msg),
+        }
+    }
+}
+
+type SyntaxError struct {
+    Pos  int
+    Src  string
+    Code types.ParsingError
+    Msg  string
+}
+
+func (self SyntaxError) Error() string {
+    return fmt.Sprintf("%q", self.Description())
+}
+
+func (self SyntaxError) Description() string {
+    return "Syntax error " + self.description()
+}
+
+func (self SyntaxError) description() string {
+    i := 16
+    p := self.Pos - i
+    q := self.Pos + i
+
+    /* check for empty source */
+    if self.Src == "" {
+        return fmt.Sprintf("no sources available, the input json is empty: %#v", self)
+    }
+
+    /* prevent slicing before the beginning */
+    if p < 0 {
+        p, q, i = 0, q - p, i + p
+    }
+
+    /* prevent slicing beyond the end */
+    if n := len(self.Src); q > n {
+        n = q - n
+        q = len(self.Src)
+
+        /* move the left bound if possible */
+        if p > n {
+            i += n
+            p -= n
+        }
+    }
+
+    /* left and right length */
+    x := clamp_zero(i)
+    y := clamp_zero(q - p - i - 1)
+
+    /* compose the error description */
+    return fmt.Sprintf(
+        "at index %d: %s\n\n\t%s\n\t%s^%s\n",
+        self.Pos,
+        self.Message(),
+        self.Src[p:q],
+        strings.Repeat(".", x),
+        strings.Repeat(".", y),
+    )
+}
+
+func (self SyntaxError) Message() string {
+    if self.Msg == "" {
+        return self.Code.Message()
+    }
+    return self.Msg
+}
+
+func clamp_zero(v int) int {
+    if v < 0 {
+        return 0
+    } else {
+        return v
+    }
+}