FieldByNames returns the struct field with the given names.

IsEmptyValue reports whether v is empty value for its type.

IsNil reports whether its argument v is a nil interface value or an untyped nil.

Deprecated: Use [IsNil] instead.

nil, unknown type.

IsNilValue reports whether v is untyped nil or typed nil for its type.

IsValidTagKey checks if key of struct tag, like `json:"name,omitempty"`, is valid.

IsZeroValue reports whether v is zero value for its type.

ParseAstStructTag parses a single struct field tag of AST and returns the set of subTags.

ParseStructTag parses a single struct field tag and returns the set of subTags.

ParseTagOptions splits a struct field's json tag into its name and comma-separated options.

SetFieldByNames assigns x to the value v.

Truncate reset bytes and string at each run of value c satisfying f(c), useful for dump into log if some field is huge v is truncated in place return interface{} same as truncated v for stream-like api.

TruncateBytes reset bytes, useful for dump into log if some field is huge v is truncated in place return interface{} same as truncated v for stream-like api.

TruncateString reset string, useful for dump into log if some field is huge v is truncated in place return interface{} same as truncated v for stream-like api.

t[i][j][...], t[i] is t's ith field, t[i][j] is t[i]'s jth field.

UnTypeNil returns its argument v or nil if and only if v is a nil interface value or an untyped nil.

v[i][j][...], v[i] is v's ith field, v[i][j] is v[i]'s jth field.

Walk walks down v.

Breadth First Search.

Wid First Search.

an ideal const, sizeof *void, as 4 << (^uintptr(0) >> 63).

A field represents a single field found in a struct.

FieldValueInfo represents a single field found in a struct.

A StructTag is the tag string in a struct field, as reflect.StructTag .

SubStructTag defines a single struct's string literal tag.

TagOptions is the string following a comma in a struct field's "json" tag, or the empty string.