Package nz.org.riskscape.pipeline.ast
Class ParameterReplacer
java.lang.Object
nz.org.riskscape.rl.ast.ExpressionConverter<List<ParameterToken>>
nz.org.riskscape.pipeline.ast.ParameterReplacer
- All Implemented Interfaces:
ExpressionVisitor<List<ParameterToken>,Expression>
An ExpressionVisitor that rewrites an expression by replacing any parameters it has found with substitutions
from the visitor's map of replacements.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionA map of ParameterToken to Expressions that are used to rewrite expressions.visit(ParameterToken parameterToken, List<ParameterToken> missing)
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Constructor Details
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ParameterReplacer
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Method Details
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visit
- Specified by:
visitin interfaceExpressionVisitor<List<ParameterToken>,Expression> - Overrides:
visitin classExpressionConverter<List<ParameterToken>>
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getReplacements
A map of ParameterToken to Expressions that are used to rewrite expressions. Whenever a ParameterToken is found in the expression being visited, this map is queried for the found ParameterToken and the mapped Expression replaces the found ParameterToken.
E.g. The expression
foo($bar, baz) + $barrywould change tofoo(bar_replacement(), baz) + $barryif the replacements map was{$bar: bar_replacement()}
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