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Refactor to avoid forced casts.

This commit is contained in:
Ewan Mellor 2017-09-27 12:26:53 -07:00
parent 4bafc74e6c
commit 365d4f40bb
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GPG Key ID: 7CE1C6BC9EC8645D
1 changed files with 8 additions and 12 deletions
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20
runtime/Swift/Sources/Antlr4/atn/SemanticContext.swift
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@ -187,15 +187,13 @@ public class SemanticContext: Hashable, CustomStringConvertible {
public init(_ a: SemanticContext, _ b: SemanticContext) {
var operands: Set<SemanticContext> = Set<SemanticContext>()
if a is AND {
operands.formUnion((a as! AND).opnds)
//operands.addAll(Arrays.asList((a as AND).opnds));
if let aAnd = a as? AND {
operands.formUnion(aAnd.opnds)
} else {
operands.insert(a)
}
if b is AND {
operands.formUnion((b as! AND).opnds)
//operands.addAll(Arrays.asList((b as AND).opnds));
if let bAnd = b as? AND {
operands.formUnion(bAnd.opnds)
} else {
operands.insert(b)
}
@ -305,15 +303,13 @@ public class SemanticContext: Hashable, CustomStringConvertible {
public init(_ a: SemanticContext, _ b: SemanticContext) {
var operands: Set<SemanticContext> = Set<SemanticContext>()
if a is OR {
operands.formUnion((a as! OR).opnds)
// operands.addAll(Arrays.asList((a as OR).opnds));
if let aOr = a as? OR {
operands.formUnion(aOr.opnds)
} else {
operands.insert(a)
}
if b is OR {
operands.formUnion((b as! OR).opnds)
//operands.addAll(Arrays.asList((b as OR).opnds));
if let bOr = b as? OR {
operands.formUnion(bOr.opnds)
} else {
operands.insert(b)
}