Category:Elena: Difference between revisions
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The assigning value can be an expression itself: |
The assigning value can be an expression itself: |
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program = |
public program = |
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[ |
[ |
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console writeLine("Hello!"); writeLine("How are you?"). |
console writeLine("Hello!"); writeLine("How are you?"). |
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ELENA is a dynamic language and in normal case we may not specify the variable type: |
ELENA is a dynamic language and in normal case we may not specify the variable type: |
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program = |
public program = |
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[ |
[ |
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var s := "Hello". |
var s := "Hello". |
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But it is still possible to specify the variable expected type: |
But it is still possible to specify the variable expected type: |
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T<LiteralValue> s := "Hello". |
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console writeLine(s). |
console writeLine(s). |
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literal s := "Hello". |
literal s := "Hello". |
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s := 2. |
s := T<literal>(2). |
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Why? ELENA is a dynamic language and in most cases resolves the types in run-time. So our code will be actually |
Why? ELENA is a dynamic language and in most cases resolves the types in run-time. So our code will be actually |
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literal s := "Hello". |
literal s := "Hello". |
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s := |
s := T<literal>(2) |
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It is guaranteed that the result of |
It is guaranteed that the result of the cast message is an instance of LiteralValue, so if the object supports the message the conversion will be done quietly. |
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int n := 3. |
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n := 3.4r. |
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The output will be: |
The output will be: |
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