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use lang:bs;
use lang:bs:macro;
use core:lang;
use core:asm;
class MapExpr extends ExprBlock {
private ExprBlock loopBody;
init(SrcPos pos, Block parent, Expr src, SStr varName) {
init(pos, parent) {
loopBody(pos, parent);
}
Var local(this, named{Int}, varName, Actuals());
add(local);
add(pattern(this) {
Array<Int> original = ${src};
Array<Int> out;
for (Nat i = 0; i < original.count; i++) {
${LocalVarAccess(pos, local.var)} = original[i];
out << ${loopBody};
}
out;
});
}
void setTransform(Expr expr) {
loopBody.add(expectCastTo(expr, named{Int}, scope));
}
}
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