68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
use minify_html::{in_place as minify_html_native, Cfg, Error};
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use jni::JNIEnv;
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use jni::objects::{JByteBuffer, JClass, JObject, JString};
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use jni::sys::{jint, jstring};
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use std::str::from_utf8_unchecked;
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const SYNTAX_EXCEPTION_CLASS: &str = "in/wilsonl/minifyhtml/SyntaxException";
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fn build_cfg(
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env: &JNIEnv,
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obj: &JObject,
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) -> Cfg {
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Cfg {
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minify_js: env.get_field(*obj, "minifyJs", "Z").unwrap().z().unwrap(),
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}
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}
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#[no_mangle]
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pub extern "system" fn Java_in_wilsonl_minifyhtml_MinifyHtml_minifyInPlace(
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env: JNIEnv,
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_class: JClass,
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input: JByteBuffer,
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cfg: JObject,
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)
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-> jint {
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let source = match env.get_direct_buffer_address(input) {
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Ok(ptr) => ptr,
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Err(_) => {
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env.throw_new("java/lang/IllegalArgumentException", "ByteBuffer is not direct").unwrap();
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return 0;
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}
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};
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(match minify_html_native(source, &build_cfg(&env, &cfg)) {
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Ok(out_len) => out_len,
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Err(Error { error_type, position }) => {
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env.throw_new(
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SYNTAX_EXCEPTION_CLASS,
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format!("{} [Character {}]", error_type.message(), position),
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).unwrap();
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0
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}
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}) as jint
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}
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#[no_mangle]
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pub extern "system" fn Java_in_wilsonl_minifyhtml_MinifyHtml_minify(
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env: JNIEnv,
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_class: JClass,
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input: JString,
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cfg: JObject,
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)
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-> jstring {
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let source: String = env.get_string(input).unwrap().into();
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let mut code = source.into_bytes();
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match minify_html_native(&mut code, &build_cfg(&env, &cfg)) {
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Ok(out_len) => env.new_string(unsafe { from_utf8_unchecked(&code[0..out_len]) }).unwrap().into_inner(),
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Err(Error { error_type, position }) => {
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env.throw_new(
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SYNTAX_EXCEPTION_CLASS,
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format!("{} [Character {}]", error_type.message(), position),
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).unwrap();
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JObject::null().into_inner()
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}
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}
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}
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