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author | 2023-02-25 13:12:40 +0100 | |
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committer | 2023-02-25 12:12:40 +0000 | |
commit | ecdc8379fa8f9d88faca626e7de748c2afbe4910 (patch) | |
tree | 8c20a5826db2136fc89bee45e15355c5899fa65b /vendor/github.com/bytedance/sonic/ast/error.go | |
parent | [bugfix] Fix deleted status causing issues when getting bookmark (#1551) (diff) | |
download | gotosocial-ecdc8379fa8f9d88faca626e7de748c2afbe4910.tar.xz |
[chore] Update gin to v1.9.0 (#1553)
Diffstat (limited to 'vendor/github.com/bytedance/sonic/ast/error.go')
-rw-r--r-- | vendor/github.com/bytedance/sonic/ast/error.go | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/vendor/github.com/bytedance/sonic/ast/error.go b/vendor/github.com/bytedance/sonic/ast/error.go new file mode 100644 index 000000000..f4c441ae6 --- /dev/null +++ b/vendor/github.com/bytedance/sonic/ast/error.go @@ -0,0 +1,98 @@ +package ast + +import ( + `fmt` + `strings` + `unsafe` + + `github.com/bytedance/sonic/internal/native/types` +) + +func (self *Parser) syntaxError(err types.ParsingError) SyntaxError { + return SyntaxError{ + Pos : self.p, + Src : self.s, + Code: err, + } +} + +func newSyntaxError(err SyntaxError) *Node { + msg := err.Description() + return &Node{ + t: V_ERROR, + v: int64(err.Code), + 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: %#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 + } +} |