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Visit the last successful build: json_str-0.5.2

Json String Literal Generator

Write json with Rust syntax instead of hard to read inline strings. Results are converted to a &'static str at compile-time.

Usage

This crate is on crates.io. To get started, add json_str to your Cargo.toml:

[dependencies]
json_str = "*"

And reference it in your crate root:

#![feature(plugin)]
#![plugin(json_str)]

The json_str! macro will take an inline token tree and return an str literal:

# #![feature(plugin)]
# #![plugin(json_str)]
# fn main() {
let json = json_str!({
	"query": {
		"filtered": {
			"query": {
				"match_all": {}
			},
			"filter": {
				"geo_distance": {
					"distance": "20km",
					"location": {
						"lat": 37.776,
						"lon": -122.41
					}
				}
			}
		}
	}
});
# }

This will also work for unquoted keys for something a bit more rusty:

# #![feature(plugin)]
# #![plugin(json_str)]
# fn main() {
let json = json_str!({
	query: {
		filtered: {
			query: {
				match_all: {}
			},
			filter: {
				geo_distance: {
					distance: "20km",
					location: {
						lat: 37.776,
						lon: -122.41
					}
				}
			}
		}
	}
});
# }

For json values that can't be fully determined at compile-time, use json_macros instead.

json_str 0.2.0

Usage