transFloatLiteral

fn transFloatLiteral(
    t: *Translator,
    scope: *Scope,
    literal_index: Node.Index,
    used: ResultUsed,
    suppress_as: SuppressCast,
) TransError!ZigNode

File

Code

fn transFloatLiteral(
    t: *Translator,
    scope: *Scope,
    literal_index: Node.Index,
    used: ResultUsed,
    suppress_as: SuppressCast,
) TransError!ZigNode {
    if (try t.checkLiteralMacro(literal_index.tok(t.tree), used)) |node| return node;
    const val = t.tree.value_map.get(literal_index).?;
    const float_literal = literal_index.get(t.tree).float_literal;

    var allocating: std.Io.Writer.Allocating = .init(t.gpa);
    defer allocating.deinit();
    _ = val.print(float_literal.qt, t.comp, &allocating.writer) catch return error.OutOfMemory;
    if (mem.findScalar(u8, allocating.written(), '.') == null) {
        allocating.writer.writeAll(".0") catch return error.OutOfMemory;
    }

    const float_lit_node = try ZigTag.float_literal.create(t.arena, try t.arena.dupe(u8, allocating.written()));
    if (suppress_as == .no_as) {
        return t.maybeSuppressResult(used, float_lit_node);
    }

    const as_node = try ZigTag.as.create(t.arena, .{
        .lhs = try t.transType(scope, float_literal.qt, float_literal.literal_tok),
        .rhs = float_lit_node,
    });
    return t.maybeSuppressResult(used, as_node);
}