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https://issues.apache.org/jira/browse/GROOVY-10342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Milles updated GROOVY-10342:
---------------------------------
Description:
I have the following program
{code:java}
class A<T> {
T f;
}
class Test {
static <T> T m() { return null; }
static <T extends Number> void test() {
String x = m(); // works
A<String> y = new A<>();
y.f = m(); // works
A<T> z = new A<T>();
z.f = m(); // does not work
}
}
{code}
h3. Actual behaviour
{code}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
test.groovy: 15: [Static type checking] - Cannot assign value of type #T to
variable of type T
@ line 15, column 11.
z.f = m();
^
1 error
{code}
h3. Expected behavior
Compile successfully
*NOTE*: Replacing `T extends Number` with `T` compiles code successfully.
Tested against master.
was:
This bug may be related to GROOVY-10222.
I have the following program
{code:java}
class A<T> {
T f;
}
class Test {
static <T> T m() { return null; }
static <T extends Number> void test() {
String x = m(); // works
A<String> y = new A<>();
y.f = m(); // works
A<T> z = new A<T>();
z.f = m(); // does not work
}
}
{code}
h3. Actual behaviour
{code}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
test.groovy: 15: [Static type checking] - Cannot assign value of type #T to
variable of type T
@ line 15, column 11.
z.f = m();
^
1 error
{code}
h3. Expected behavior
Compile successfully
*NOTE*: Replacing `T extends Number` with `T` compiles code successfully.
Tested against master.
> STC is unable to infer type parameter of parameterized method call
> ------------------------------------------------------------------
>
> Key: GROOVY-10342
> URL: https://issues.apache.org/jira/browse/GROOVY-10342
> Project: Groovy
> Issue Type: Bug
> Components: Static Type Checker
> Reporter: Thodoris Sotiropoulos
> Assignee: Eric Milles
> Priority: Major
>
> I have the following program
> {code:java}
> class A<T> {
> T f;
> }
> class Test {
> static <T> T m() { return null; }
> static <T extends Number> void test() {
> String x = m(); // works
> A<String> y = new A<>();
> y.f = m(); // works
> A<T> z = new A<T>();
> z.f = m(); // does not work
> }
> }
> {code}
> h3. Actual behaviour
> {code}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> test.groovy: 15: [Static type checking] - Cannot assign value of type #T to
> variable of type T
> @ line 15, column 11.
> z.f = m();
> ^
> 1 error
> {code}
> h3. Expected behavior
> Compile successfully
> *NOTE*: Replacing `T extends Number` with `T` compiles code successfully.
> Tested against master.
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