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Published on 2010-06-05T22:01:45Z
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2010/06/05
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One of the new features of Scala 2.8 are context bounds. What is a context bound and where is it useful?
Of course I searched first (and found for example this) but I couldn't find any really clear and detailed information.
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I've installed ensime according to the README.md file, however, I get errors in the inferior-ensime-server buffer with the following:
INFO: Fatal Error: scala.tools.nsc.MissingRequirementError: object scala not found.
scala.tools.nsc.MissingRequirementError: object scala not found.
at scala…
>>> More
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When I run M-X ensime-disconnect I get the following forever:
string matching regex `\"((?:[^\"\\]|\\.)*)\"' expected but `^@' found
and I see this exception when I use C-c C-c
Uncaught exception in com.ensime.server.SocketHandler@769aba32
java.net.SocketException: Broken pipe
at java…
>>> More
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I'm using Scala 2.8.0 and trying to read pipe delimited file like in code snipped below:
object Main {
def main(args: Array[String]) :Unit = {
if (args.length > 0) {
val lines = scala.io.Source.fromPath("QUICK!LRU-2009-11-15.psv")
for (line <-lines)
print(line)
}
…
>>> More
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I don't understand why authors said that Code Listing 9.1 from "Programming in Scala" use closure. In chapter 9, they show how to refactor code into more less duplicated form, from this original code:
object FileMatcher {
private def filesHere = (new java.io.File(".")).listFiles
def filesEnding(query:…
>>> More
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I am processing a XML document and iterating through nodes. I want to iterate through the nodes and build a new List of some type. How would I do this with Scala:
Here is my XML traverse code:
def findClassRef(xmlNode: Elem) = {
xmlNode\"classDef" foreach { (entry) =>
val name…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
I've installed ensime according to the README.md file, however, I get errors in the inferior-ensime-server buffer with the following:
INFO: Fatal Error: scala.tools.nsc.MissingRequirementError: object scala not found.
scala.tools.nsc.MissingRequirementError: object scala not found.
at scala…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
When I run M-X ensime-disconnect I get the following forever:
string matching regex `\"((?:[^\"\\]|\\.)*)\"' expected but `^@' found
and I see this exception when I use C-c C-c
Uncaught exception in com.ensime.server.SocketHandler@769aba32
java.net.SocketException: Broken pipe
at java…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
I'm using Scala 2.8.0 and trying to read pipe delimited file like in code snipped below:
object Main {
def main(args: Array[String]) :Unit = {
if (args.length > 0) {
val lines = scala.io.Source.fromPath("QUICK!LRU-2009-11-15.psv")
for (line <-lines)
print(line)
}
…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
I don't understand why authors said that Code Listing 9.1 from "Programming in Scala" use closure. In chapter 9, they show how to refactor code into more less duplicated form, from this original code:
object FileMatcher {
private def filesHere = (new java.io.File(".")).listFiles
def filesEnding(query:…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
I am processing a XML document and iterating through nodes. I want to iterate through the nodes and build a new List of some type. How would I do this with Scala:
Here is my XML traverse code:
def findClassRef(xmlNode: Elem) = {
xmlNode\"classDef" foreach { (entry) =>
val name…
>>> More
