ds300
/ gist:6763496
Created
September 30, 2013 13:02
Illustration of AST Visitor pattern. (This is bad java, just to give you an idea of how things fit together)
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| public abstract class BaseAST { | |
| public abstract void accept(Visitor v); | |
| } | |
| public abstract class Visitor { | |
| public abstract void visitBinOpNode(Expression lhs, | |
| Op op, | |
| Expression rhs); | |
| public abstract void visitIdentNode(String ident); | |
| } |
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| # let's start with this: | |
| siteswaplist = [] | |
| while len(siteswap) > 0: | |
| if siteswap[0] == "a": | |
| siteswaplist.append(10) | |
| siteswap = siteswap[1:] | |
| if siteswap[0] == "b": | |
| siteswaplist.append(11) | |
| siteswap = siteswap[1:] |
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| <?xml version="1.0" encoding="UTF-8" ?> | |
| <testsuite failures="0" time="1.319" errors="1" skipped="0" tests="8" name="uk.ac.susx.mlcl.byblo.commands.ExternalCountCommandTest"> | |
| <properties> | |
| <property name="java.runtime.name" value="Java(TM) SE Runtime Environment"/> | |
| <property name="sun.boot.library.path" value="/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Libraries"/> | |
| <property name="java.vm.version" value="20.8-b03-424"/> | |
| <property name="awt.nativeDoubleBuffering" value="true"/> | |
| <property name="gopherProxySet" value="false"/> | |
| <property name="mrj.build" value="11M3720"/> | |
| <property name="java.vm.vendor" value="Apple Inc."/> |
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