Created
June 11, 2012 20:14
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Groovyで型を省略した場合と型を指定した場合の違い
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| /* | |
| * 型を省略した場合 | |
| */ | |
| //バインディング変数 | |
| v = "abc" | |
| assert v.class == java.lang.String | |
| v = 1 | |
| assert v == 1 | |
| assert v.class == java.lang.Integer | |
| v = "xyz" | |
| assert v.class == java.lang.String | |
| //ローカル変数 | |
| def l = "abc" | |
| assert l.class == java.lang.String | |
| l = 1 | |
| assert l == 1 | |
| assert l.class == java.lang.Integer | |
| l = "xyz" | |
| assert l.class == java.lang.String | |
| /* | |
| * 型を指定した場合 | |
| */ | |
| String s = "abc" | |
| assert s.class == java.lang.String | |
| s = 1 | |
| assert s.class == java.lang.String | |
| assert s == "1" | |
| def iTest = new IntegerTest() | |
| iTest.test1() | |
| iTest.test2() | |
| class IntegerTest extends GroovyTestCase { | |
| void test1() { | |
| shouldFail(org.codehaus.groovy.runtime.typehandling.GroovyCastException) { | |
| Integer i | |
| i = "abc" | |
| } | |
| } | |
| void test2() { | |
| shouldFail(org.codehaus.groovy.runtime.typehandling.GroovyCastException) { | |
| Integer i | |
| i = "123" | |
| } | |
| } | |
| } |
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