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#!/usr/bin/env bin/crystal --run
require "../../spec_helper"
describe "Code gen: sizeof" do
it "gets sizeof int" do
run("sizeof(Int32)").to_i.should eq(4)
end
it "gets sizeof struct" do
run("
struct Foo
def initialize(@x, @y, @z)
end
end
Foo.new(1, 2, 3)
sizeof(Foo)
").to_i.should eq(12)
end
it "gets sizeof class" do
run("
class Foo
def initialize(@x, @y, @z)
end
end
Foo.new(1, 2, 3)
sizeof(Foo)
").to_i.should eq(8)
end
it "gets sizeof union" do
run("
sizeof(Int32 | Float64)
").to_i.should eq(16)
end
end