chat-server/qq-imsvr/node_modules/uglify-js/test/compress/loops.js

while_becomes_for: {
    options = { loops: true };
    input: {
        while (foo()) bar();
    }
    expect: {
        for (; foo(); ) bar();
    }
}

drop_if_break_1: {
    options = { loops: true };
    input: {
        for (;;)
            if (foo()) break;
    }
    expect: {
        for (; !foo(););
    }
}

drop_if_break_2: {
    options = { loops: true };
    input: {
        for (;bar();)
            if (foo()) break;
    }
    expect: {
        for (; bar() && !foo(););
    }
}

drop_if_break_3: {
    options = { loops: true };
    input: {
        for (;bar();) {
            if (foo()) break;
            stuff1();
            stuff2();
        }
    }
    expect: {
        for (; bar() && !foo();) {
            stuff1();
            stuff2();
        }
    }
}

drop_if_break_4: {
    options = { loops: true, sequences: true };
    input: {
        for (;bar();) {
            x();
            y();
            if (foo()) break;
            z();
            k();
        }
    }
    expect: {
        for (; bar() && (x(), y(), !foo());) z(), k();
    }
}

drop_if_else_break_1: {
    options = { loops: true };
    input: {
        for (;;) if (foo()) bar(); else break;
    }
    expect: {
        for (; foo(); ) bar();
    }
}

drop_if_else_break_2: {
    options = { loops: true };
    input: {
        for (;bar();) {
            if (foo()) baz();
            else break;
        }
    }
    expect: {
        for (; bar() && foo();) baz();
    }
}

drop_if_else_break_3: {
    options = { loops: true };
    input: {
        for (;bar();) {
            if (foo()) baz();
            else break;
            stuff1();
            stuff2();
        }
    }
    expect: {
        for (; bar() && foo();) {
            baz();
            stuff1();
            stuff2();
        }
    }
}

drop_if_else_break_4: {
    options = { loops: true, sequences: true };
    input: {
        for (;bar();) {
            x();
            y();
            if (foo()) baz();
            else break;
            z();
            k();
        }
    }
    expect: {
        for (; bar() && (x(), y(), foo());) baz(), z(), k();
    }
}