parseFromTokenSource

scanner_or_reader must be either a *std.json.Scanner with complete input or a *std.json.Reader. Note that error.BufferUnderrun is not actually possible to return from this function.

Function parameters

Parameters

T:type
allocator:Allocator
scanner_or_reader:anytype
options:ParseOptions

Controls how to deal with various inconsistencies between the JSON document and the Zig struct type passed in.

Types

ParseOptions: Controls how to deal with various inconsistencies between the JSON document and the Zig struct type passed in.

Functions in this namespace

Functions

Parsed
parseFromSlice: Parses the json document from `s` and returns the result packaged in a `std.json.Parsed`.
parseFromSliceLeaky: Parses the json document from `s` and returns the result.
parseFromTokenSource: `scanner_or_reader` must be either a `*std.json.Scanner` with complete input or a `*std.json.Reader`.
parseFromTokenSourceLeaky: `scanner_or_reader` must be either a `*std.json.Scanner` with complete input or a `*std.json.Reader`.
parseFromValue: Like `parseFromSlice`, but the input is an already-parsed `std.json.Value` object.
parseFromValueLeaky
ParseError: The error set that will be returned when parsing from `*Source`.
innerParse: This is an internal function called recursively
innerParseFromValue: This is an internal function called recursively

Error sets in this namespace

Error Sets

ParseFromValueError

Source

Implementation

pub fn parseFromTokenSource(
    comptime T: type,
    allocator: Allocator,
    scanner_or_reader: anytype,
    options: ParseOptions,
) ParseError(@TypeOf(scanner_or_reader.*))!Parsed(T) {
    var parsed = Parsed(T){
        .arena = try allocator.create(ArenaAllocator),
        .value = undefined,
    };
    errdefer allocator.destroy(parsed.arena);
    parsed.arena.* = ArenaAllocator.init(allocator);
    errdefer parsed.arena.deinit();

    parsed.value = try parseFromTokenSourceLeaky(T, parsed.arena.allocator(), scanner_or_reader, options);

    return parsed;
}