mirror of
https://github.com/rustwasm/wasm-bindgen.git
synced 2024-12-25 11:02:11 +03:00
String - length, trim, trimStart & trimLeft, trimEnd & trimRight
This commit is contained in:
parent
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commit
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43
src/js.rs
43
src/js.rs
@ -566,6 +566,13 @@ extern {
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#[wasm_bindgen(js_name = JsString)]
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#[wasm_bindgen(js_name = JsString)]
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pub type JsString;
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pub type JsString;
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/// The length property of a String object indicates the length of a string,
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/// in UTF-16 code units.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length
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#[wasm_bindgen(method, getter, structural)]
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pub fn length(this: &JsString) -> u32;
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/// The String object's charAt() method returns a new string consisting of the single
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/// The String object's charAt() method returns a new string consisting of the single
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/// UTF-16 code unit located at the specified offset into the string.
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/// UTF-16 code unit located at the specified offset into the string.
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///
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///
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@ -636,6 +643,42 @@ extern {
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr
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#[wasm_bindgen(method, js_class = "String")]
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#[wasm_bindgen(method, js_class = "String")]
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pub fn substr(this: &JsString, start: i32, length: i32) -> JsString;
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pub fn substr(this: &JsString, start: i32, length: i32) -> JsString;
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/// The trim() method removes whitespace from both ends of a string.
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/// Whitespace in this context is all the whitespace characters
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/// (space, tab, no-break space, etc.) and all the line terminator characters (LF, CR, etc.).
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trim
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#[wasm_bindgen(method, js_class = "String")]
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pub fn trim(this: &JsString) -> JsString;
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/// The trimEnd() method removes whitespace from the end of a string.
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/// trimRight() is an alias of this method.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd
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#[wasm_bindgen(method, js_class = "String", js_name = trimEnd)]
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pub fn trim_end(this: &JsString) -> JsString;
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/// The trimEnd() method removes whitespace from the end of a string.
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/// trimRight() is an alias of this method.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd
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#[wasm_bindgen(method, js_class = "String", js_name = trimRight)]
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pub fn trim_right(this: &JsString) -> JsString;
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/// The trimStart() method removes whitespace from the beginning of a string.
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/// trimLeft() is an alias of this method.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart
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#[wasm_bindgen(method, js_class = "String", js_name = trimStart)]
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pub fn trim_start(this: &JsString) -> JsString;
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/// The trimStart() method removes whitespace from the beginning of a string.
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/// trimLeft() is an alias of this method.
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///
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/// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart
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#[wasm_bindgen(method, js_class = "String", js_name = trimLeft)]
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pub fn trim_left(this: &JsString) -> JsString;
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}
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}
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impl<'a> From<&'a str> for JsString {
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impl<'a> From<&'a str> for JsString {
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@ -2,6 +2,37 @@
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use project;
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use project;
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#[test]
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fn length() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn string_length(this: &js::JsString) -> u32 {
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this.length()
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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let x = 'Mozilla';
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assert.equal(wasm.string_length(x), 7);
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let empty = '';
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assert.equal(wasm.string_length(empty), 0);
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}
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"#)
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.test()
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}
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#[test]
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#[test]
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fn char_at() {
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fn char_at() {
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project()
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project()
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@ -31,6 +62,35 @@ fn char_at() {
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.test()
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.test()
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}
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}
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#[test]
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fn char_code_at() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn string_char_code_at(this: &js::JsString, index: u32) -> js::Number {
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this.char_code_at(index)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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var anyString = 'Brave new world';
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export function test() {
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assert.equal(wasm.string_char_code_at(anyString, 0), 66);
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assert.ok(isNaN(wasm.string_char_code_at(anyString, 999)));
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}
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"#)
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.test()
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}
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#[test]
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#[test]
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fn code_point_at() {
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fn code_point_at() {
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project()
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project()
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@ -90,9 +150,9 @@ fn concat() {
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"#)
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"#)
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.test()
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.test()
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}
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}
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#[test]
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#[test]
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fn char_code_at() {
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fn includes() {
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project()
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project()
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.file("src/lib.rs", r#"
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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#![feature(proc_macro, wasm_custom_section)]
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@ -102,37 +162,8 @@ fn char_code_at() {
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use wasm_bindgen::js;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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#[wasm_bindgen]
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pub fn string_char_code_at(this: &js::JsString, index: u32) -> js::Number {
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pub fn string_includes(this: &js::JsString, search_value: &js::JsString, position: i32) -> bool {
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this.char_code_at(index)
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this.includes(search_value, position)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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var anyString = 'Brave new world';
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export function test() {
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assert.equal(wasm.string_char_code_at(anyString, 0), 66);
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assert.ok(isNaN(wasm.string_char_code_at(anyString, 999)));
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}
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"#)
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.test()
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}
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#[test]
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fn starts_with() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn string_starts_with(this: &js::JsString, search_string: &js::JsString, position: u32) -> bool {
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this.starts_with(search_string, position)
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}
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}
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"#)
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"#)
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.file("test.ts", r#"
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.file("test.ts", r#"
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@ -140,51 +171,16 @@ fn starts_with() {
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import * as wasm from "./out";
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import * as wasm from "./out";
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export function test() {
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export function test() {
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let str = "To be, or not to be, that is the question.";
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let str = "Blue Whale";
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// TODO: remove second parameter for both assertions once we have optional parameters
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// TODO: remove second parameter once we have optional parameters
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assert.ok(wasm.string_starts_with(str, 'To be', 0));
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assert.equal(wasm.string_includes(str, 'Blue', 0), true);
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assert.ok(!wasm.string_starts_with(str, 'not to be', 0));
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assert.equal(wasm.string_includes(str, 'Blute', 0), false);
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assert.ok(wasm.string_starts_with(str, 'not to be', 10));
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assert.equal(wasm.string_includes(str, 'Whale', 0), true);
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}
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assert.equal(wasm.string_includes(str, 'Whale', 5), true);
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"#)
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assert.equal(wasm.string_includes(str, 'Whale', 7), false);
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.test()
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assert.equal(wasm.string_includes(str, '', 0), true);
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}
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assert.equal(wasm.string_includes(str, '', 16), true);
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#[test]
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fn substring() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn string_substring(this: &js::JsString, index_start: u32, index_end: u32) -> js::JsString {
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this.substring(index_start, index_end)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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let anyString = "Mozilla";
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assert.equal(wasm.string_substring(anyString, 0, 1), 'M');
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assert.equal(wasm.string_substring(anyString, 1, 0), 'M');
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assert.equal(wasm.string_substring(anyString, 0, 6), 'Mozill');
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// TODO: Add test once we have optional parameters
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// assert.equal(wasm.string_substring(anyString, 4), 'lla');
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assert.equal(wasm.string_substring(anyString, 4, 7), 'lla');
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assert.equal(wasm.string_substring(anyString, 7, 4), 'lla');
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assert.equal(wasm.string_substring(anyString, 0, 7), 'Mozilla');
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assert.equal(wasm.string_substring(anyString, 0, 10), 'Mozilla');
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}
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}
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"#)
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"#)
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.test()
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.test()
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@ -258,6 +254,76 @@ fn slice() {
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.test()
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.test()
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}
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}
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#[test]
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fn starts_with() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn string_starts_with(this: &js::JsString, search_string: &js::JsString, position: u32) -> bool {
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this.starts_with(search_string, position)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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let str = "To be, or not to be, that is the question.";
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// TODO: remove second parameter for both assertions once we have optional parameters
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assert.ok(wasm.string_starts_with(str, 'To be', 0));
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assert.ok(!wasm.string_starts_with(str, 'not to be', 0));
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assert.ok(wasm.string_starts_with(str, 'not to be', 10));
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}
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"#)
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.test()
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}
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#[test]
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fn substring() {
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project()
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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pub fn string_substring(this: &js::JsString, index_start: u32, index_end: u32) -> js::JsString {
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this.substring(index_start, index_end)
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}
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"#)
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.file("test.ts", r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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let anyString = "Mozilla";
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assert.equal(wasm.string_substring(anyString, 0, 1), 'M');
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assert.equal(wasm.string_substring(anyString, 1, 0), 'M');
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assert.equal(wasm.string_substring(anyString, 0, 6), 'Mozill');
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// TODO: Add test once we have optional parameters
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// assert.equal(wasm.string_substring(anyString, 4), 'lla');
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assert.equal(wasm.string_substring(anyString, 4, 7), 'lla');
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assert.equal(wasm.string_substring(anyString, 7, 4), 'lla');
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assert.equal(wasm.string_substring(anyString, 0, 7), 'Mozilla');
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assert.equal(wasm.string_substring(anyString, 0, 10), 'Mozilla');
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}
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"#)
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.test()
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}
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#[test]
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#[test]
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fn substr() {
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fn substr() {
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project()
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project()
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@ -295,7 +361,7 @@ fn substr() {
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}
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}
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#[test]
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#[test]
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fn includes() {
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fn trim() {
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project()
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project()
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.file("src/lib.rs", r#"
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.file("src/lib.rs", r#"
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#![feature(proc_macro, wasm_custom_section)]
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#![feature(proc_macro, wasm_custom_section)]
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@ -305,8 +371,8 @@ fn includes() {
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use wasm_bindgen::js;
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use wasm_bindgen::js;
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#[wasm_bindgen]
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#[wasm_bindgen]
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pub fn string_includes(this: &js::JsString, search_value: &js::JsString, position: i32) -> bool {
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pub fn string_trim(this: &js::JsString) -> js::JsString {
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this.includes(search_value, position)
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this.trim()
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}
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}
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"#)
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"#)
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.file("test.ts", r#"
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.file("test.ts", r#"
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@ -314,17 +380,78 @@ fn includes() {
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import * as wasm from "./out";
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import * as wasm from "./out";
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export function test() {
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export function test() {
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let str = "Blue Whale";
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assert.equal(wasm.string_trim(' foo '), 'foo');
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// Another example of .trim() removing whitespace from just one side.
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// TODO: remove second parameter once we have optional parameters
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assert.equal(wasm.string_trim('foo '), 'foo');
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assert.equal(wasm.string_includes(str, 'Blue', 0), true);
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assert.equal(wasm.string_includes(str, 'Blute', 0), false);
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assert.equal(wasm.string_includes(str, 'Whale', 0), true);
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assert.equal(wasm.string_includes(str, 'Whale', 5), true);
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assert.equal(wasm.string_includes(str, 'Whale', 7), false);
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||||||
assert.equal(wasm.string_includes(str, '', 0), true);
|
|
||||||
assert.equal(wasm.string_includes(str, '', 16), true);
|
|
||||||
}
|
}
|
||||||
"#)
|
"#)
|
||||||
.test()
|
.test()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn trim_end_and_trim_right() {
|
||||||
|
project()
|
||||||
|
.file("src/lib.rs", r#"
|
||||||
|
#![feature(proc_macro, wasm_custom_section)]
|
||||||
|
|
||||||
|
extern crate wasm_bindgen;
|
||||||
|
use wasm_bindgen::prelude::*;
|
||||||
|
use wasm_bindgen::js;
|
||||||
|
|
||||||
|
#[wasm_bindgen]
|
||||||
|
pub fn string_trim_end(this: &js::JsString) -> js::JsString {
|
||||||
|
this.trim_end()
|
||||||
|
}
|
||||||
|
|
||||||
|
#[wasm_bindgen]
|
||||||
|
pub fn string_trim_right(this: &js::JsString) -> js::JsString {
|
||||||
|
this.trim_right()
|
||||||
|
}
|
||||||
|
"#)
|
||||||
|
.file("test.ts", r#"
|
||||||
|
import * as assert from "assert";
|
||||||
|
import * as wasm from "./out";
|
||||||
|
|
||||||
|
export function test() {
|
||||||
|
let greeting = ' Hello world! ';
|
||||||
|
let trimmed = ' Hello world!';
|
||||||
|
assert.equal(wasm.string_trim_end(greeting), trimmed);
|
||||||
|
assert.equal(wasm.string_trim_right(greeting), trimmed);
|
||||||
|
}
|
||||||
|
"#)
|
||||||
|
.test()
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn trim_start_and_trim_left() {
|
||||||
|
project()
|
||||||
|
.file("src/lib.rs", r#"
|
||||||
|
#![feature(proc_macro, wasm_custom_section)]
|
||||||
|
|
||||||
|
extern crate wasm_bindgen;
|
||||||
|
use wasm_bindgen::prelude::*;
|
||||||
|
use wasm_bindgen::js;
|
||||||
|
|
||||||
|
#[wasm_bindgen]
|
||||||
|
pub fn string_trim_start(this: &js::JsString) -> js::JsString {
|
||||||
|
this.trim_start()
|
||||||
|
}
|
||||||
|
|
||||||
|
#[wasm_bindgen]
|
||||||
|
pub fn string_trim_left(this: &js::JsString) -> js::JsString {
|
||||||
|
this.trim_left()
|
||||||
|
}
|
||||||
|
"#)
|
||||||
|
.file("test.ts", r#"
|
||||||
|
import * as assert from "assert";
|
||||||
|
import * as wasm from "./out";
|
||||||
|
|
||||||
|
export function test() {
|
||||||
|
let greeting = ' Hello world! ';
|
||||||
|
let trimmed = 'Hello world! ';
|
||||||
|
assert.equal(wasm.string_trim_start(greeting), trimmed);
|
||||||
|
assert.equal(wasm.string_trim_left(greeting), trimmed);
|
||||||
|
}
|
||||||
|
"#)
|
||||||
|
.test()
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user