diff options
author | 2015-12-16 15:02:03 +0000 | |
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committer | 2015-12-16 15:31:41 +0000 | |
commit | 8853df9a19dabc72c3b723b84e6cb69b6fb2884e (patch) | |
tree | 4b7b7efb3b8092333c0a96eadbce6da65979f195 /src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java | |
parent | f8f855c6ee75a30558a3ce3dcb0759a1dcc59504 (diff) |
Implement list.remove function
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MOS_MIGRATED_REVID=110356439
Diffstat (limited to 'src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java')
-rw-r--r-- | src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java b/src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java index dc3f50b72e..2a64a0e02b 100644 --- a/src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java +++ b/src/main/java/com/google/devtools/build/lib/syntax/MethodLibrary.java @@ -1183,7 +1183,7 @@ public class MethodLibrary { "Returns the index in the list of the first item whose value is x. " + "It is an error if there is no such item.", mandatoryPositionals = { - @Param(name = "self", type = MutableList.class, doc = "This string, a separator."), + @Param(name = "self", type = MutableList.class, doc = "This list."), @Param(name = "x", type = Object.class, doc = "The object to search.") }, useLocation = true @@ -1202,6 +1202,34 @@ public class MethodLibrary { } }; + @SkylarkSignature( + name = "remove", + objectType = MutableList.class, + returnType = Runtime.NoneType.class, + doc = + "Removes the first item from the list whose value is x. " + + "It is an error if there is no such item.", + mandatoryPositionals = { + @Param(name = "self", type = MutableList.class, doc = "This list."), + @Param(name = "x", type = Object.class, doc = "The object to remove.") + }, + useLocation = true, + useEnvironment = true + ) + private static BuiltinFunction listRemove = + new BuiltinFunction("remove") { + public Runtime.NoneType invoke(MutableList self, Object x, Location loc, Environment env) + throws EvalException { + for (int i = 0; i < self.size(); i++) { + if (self.get(i).equals(x)) { + self.remove(i, loc, env); + return Runtime.NONE; + } + } + throw new EvalException(loc, Printer.format("Item %r not found in list", x)); + } + }; + // dictionary access operator @SkylarkSignature(name = "$index", documented = false, objectType = Map.class, doc = "Looks up a value in a dictionary.", |