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BobHanson / java2script

Java2Script provides an Eclipse Java to JavaScript transpiler, with a nearly complete implementation of the Java Virtual Machine with AWT and Swing in JavaScript, with simple, automated parallel creation of both class files and js files. To date, over 600 applets have been converted.
https://chemapps.stolaf.edu/swingjs/examples.htm
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@j2sNative may not work depending on its position in an expression #241

Closed warownia1 closed 8 months ago

warownia1 commented 2 years ago

@j2sNative, when used in an expression, may not appear in the transpiled code depending on its position. For example:

boolean var1 = /** @j2sNative true || */ false;

is transpiled to

var var1=true ||false;

but when the order is reversed

boolean var2 = false /** @j2sNative || true */;

then it is transpiled to

var var2=false;

A possibly related problem occurs when @j2sNative is used inside an if statement following an expression

if (false /** @j2sNative || true */) {
}

becomes

if (false) {
|| true
}
BobHanson commented 2 years ago

Yes, you must do that in the first order. Is a bit odd, admittedly.

On Mon, Sep 26, 2022 at 7:28 AM Mateusz Warowny @.***> wrote:

@j2sNative, when used in an expression, may not appear in the transpiled code depending on its position. For example:

boolean var1 = /* @j2sNative true || / false;

is transpiled to

var var1=true ||false;

but when the order is reversed

boolean var2 = false /* @j2sNative || true /;

then it is transpiled to

var var2=false;

A possibly related problem occurs when @j2sNative is used inside an if statement following an expression

if (false /* @j2sNative || true /) { }

becomes

if (false) {|| true}

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