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java.lang.Objectunsw.cse.framescript.Term
public abstract class Term
This abstract class provides a list of methods and default implemetations that all types available in FrameScript require.
Constructor Summary | |
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Term()
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Method Summary | |
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Term |
assign(Instance currentObject,
Term arg,
StackFrame frame)
Assigns a value to a Term. |
java.lang.String |
asString(int indentLevel,
boolean inPattern)
Turns the Term into a string. |
abstract boolean |
equals(Term t)
Compares two Terms for equality. |
abstract Term |
eval(Instance currentObject,
StackFrame frame)
Evaluates a Term. |
boolean |
fullMatch(unsw.cse.framescript.InputPattern input,
Instance current,
StackFrame frame)
Matches the Term to the current position in an input pattern. |
static java.lang.String |
indents(int level)
Privides a standard method for generating indentation. |
Term |
mapVars(FSList vars)
Maps atoms to variables from the list of variables. |
boolean |
match(unsw.cse.framescript.InputPattern input,
Instance current,
StackFrame frame)
Matches the Term to the current position in an input pattern. |
abstract java.lang.String |
toString()
Turns the Term into a string. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Term()
Method Detail |
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public abstract Term eval(Instance currentObject, StackFrame frame) throws FSException
currentObject
- the enclosing instance frame for the code being evaluatedframe
- StackFrame that holds the values for any variables
FSException
- if any errors occur in performing the evaluationpublic Term assign(Instance currentObject, Term arg, StackFrame frame) throws FSException
currentObject
- the enclosing instance frame for the code being evaluated that
is performing the assignmentarg
- the unevaluated value to be assigned to the Termframe
- StackFrame that holds the values for any variables
FSException
- if assignment cannot be performedpublic Term mapVars(FSList vars) throws SyntaxError
vars
- a list of variables to be mapped
SyntaxError
- if in performing the mapping it finds an invalid variable namepublic abstract boolean equals(Term t)
t
- Term to be compared to
public boolean match(unsw.cse.framescript.InputPattern input, Instance current, StackFrame frame) throws FSException
input
- the input the Term is being matched againstcurrent
- the enclosing instance frame for the code being evaluatedframe
- StackFrame that holds the values for any variables
FSException
- if any errors occur during the match processpublic boolean fullMatch(unsw.cse.framescript.InputPattern input, Instance current, StackFrame frame) throws FSException
input
- the input the Term is being matched againstcurrent
- the enclosing instance frame for the code being evaluatedframe
- StackFrame that holds the values for any variables
FSException
- if any errors occur during the match processpublic abstract java.lang.String toString()
toString
in class java.lang.Object
public java.lang.String asString(int indentLevel, boolean inPattern)
indentLevel
- indentation level to uses for any subsequent lines in the stringinPattern
- whether or not to format the string as though it is inside a pattern
public static java.lang.String indents(int level)
level
- number of indents to generate
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