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Implement patterns for most FunctionSingles

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This commit is contained in:
Riccardo Azzolini 2018-10-06 18:41:32 +02:00
parent 54fc13b211
commit 0ec3974f41
7 changed files with 251 additions and 0 deletions
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34
core/src/main/java/it/cavallium/warppi/math/rules/dsl/patterns/ArcCosinePattern.java Normal file
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@ -0,0 +1,34 @@
package it.cavallium.warppi.math.rules.dsl.patterns;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.trigonometry.ArcCosine;
import it.cavallium.warppi.math.rules.dsl.Pattern;
import it.cavallium.warppi.math.rules.dsl.VisitorPattern;
import java.util.Map;
import java.util.Optional;
/**
* Matches and generates the arccosine of another pattern.
*/
public class ArcCosinePattern extends VisitorPattern {
private final Pattern argument;
public ArcCosinePattern(final Pattern argument) {
this.argument = argument;
}
@Override
public Optional<Map<String, Function>> visit(final ArcCosine arcCosine) {
return argument.match(arcCosine.getParameter());
}
@Override
public Function replace(final MathContext mathContext, final Map<String, Function> subFunctions) {
return new ArcCosine(
mathContext,
argument.replace(mathContext, subFunctions)
);
}
}

34
core/src/main/java/it/cavallium/warppi/math/rules/dsl/patterns/ArcSinePattern.java Normal file
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@ -0,0 +1,34 @@
package it.cavallium.warppi.math.rules.dsl.patterns;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.trigonometry.ArcSine;
import it.cavallium.warppi.math.rules.dsl.Pattern;
import it.cavallium.warppi.math.rules.dsl.VisitorPattern;
import java.util.Map;
import java.util.Optional;
/**
* Matches and generates the arcsine of another pattern.
*/
public class ArcSinePattern extends VisitorPattern {
private final Pattern argument;
public ArcSinePattern(final Pattern argument) {
this.argument = argument;
}
@Override
public Optional<Map<String, Function>> visit(final ArcSine arcSine) {
return argument.match(arcSine.getParameter());
}
@Override
public Function replace(final MathContext mathContext, final Map<String, Function> subFunctions) {
return new ArcSine(
mathContext,
argument.replace(mathContext, subFunctions)
);
}
}

34
core/src/main/java/it/cavallium/warppi/math/rules/dsl/patterns/ArcTangentPattern.java Normal file
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@ -0,0 +1,34 @@
package it.cavallium.warppi.math.rules.dsl.patterns;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.trigonometry.ArcTangent;
import it.cavallium.warppi.math.rules.dsl.Pattern;
import it.cavallium.warppi.math.rules.dsl.VisitorPattern;
import java.util.Map;
import java.util.Optional;
/**
* Matches and generates the arctangent of another pattern.
*/
public class ArcTangentPattern extends VisitorPattern {
private final Pattern argument;
public ArcTangentPattern(final Pattern argument) {
this.argument = argument;
}
@Override
public Optional<Map<String, Function>> visit(final ArcTangent arcTangent) {
return argument.match(arcTangent.getParameter());
}
@Override
public Function replace(final MathContext mathContext, final Map<String, Function> subFunctions) {
return new ArcTangent(
mathContext,
argument.replace(mathContext, subFunctions)
);
}
}

34
core/src/main/java/it/cavallium/warppi/math/rules/dsl/patterns/CosinePattern.java Normal file
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@ -0,0 +1,34 @@
package it.cavallium.warppi.math.rules.dsl.patterns;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.trigonometry.Cosine;
import it.cavallium.warppi.math.rules.dsl.Pattern;
import it.cavallium.warppi.math.rules.dsl.VisitorPattern;
import java.util.Map;
import java.util.Optional;
/**
* Matches and generates the cosine of another pattern.
*/
public class CosinePattern extends VisitorPattern {
private final Pattern argument;
public CosinePattern(final Pattern argument) {
this.argument = argument;
}
@Override
public Optional<Map<String, Function>> visit(final Cosine cosine) {
return argument.match(cosine.getParameter());
}
@Override
public Function replace(final MathContext mathContext, final Map<String, Function> subFunctions) {
return new Cosine(
mathContext,
argument.replace(mathContext, subFunctions)
);
}
}

34
core/src/main/java/it/cavallium/warppi/math/rules/dsl/patterns/SinePattern.java Normal file
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@ -0,0 +1,34 @@
package it.cavallium.warppi.math.rules.dsl.patterns;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.trigonometry.Sine;
import it.cavallium.warppi.math.rules.dsl.Pattern;
import it.cavallium.warppi.math.rules.dsl.VisitorPattern;
import java.util.Map;
import java.util.Optional;
/**
* Matches and generates the sine of another pattern.
*/
public class SinePattern extends VisitorPattern {
private final Pattern argument;
public SinePattern(final Pattern argument) {
this.argument = argument;
}
@Override
public Optional<Map<String, Function>> visit(final Sine sine) {
return argument.match(sine.getParameter());
}
@Override
public Function replace(final MathContext mathContext, final Map<String, Function> subFunctions) {
return new Sine(
mathContext,
argument.replace(mathContext, subFunctions)
);
}
}

34
core/src/main/java/it/cavallium/warppi/math/rules/dsl/patterns/TangentPattern.java Normal file
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@ -0,0 +1,34 @@
package it.cavallium.warppi.math.rules.dsl.patterns;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.trigonometry.Tangent;
import it.cavallium.warppi.math.rules.dsl.Pattern;
import it.cavallium.warppi.math.rules.dsl.VisitorPattern;
import java.util.Map;
import java.util.Optional;
/**
* Matches and generates the tangent of another pattern.
*/
public class TangentPattern extends VisitorPattern {
private final Pattern argument;
public TangentPattern(final Pattern argument) {
this.argument = argument;
}
@Override
public Optional<Map<String, Function>> visit(final Tangent tangent) {
return argument.match(tangent.getParameter());
}
@Override
public Function replace(final MathContext mathContext, final Map<String, Function> subFunctions) {
return new Tangent(
mathContext,
argument.replace(mathContext, subFunctions)
);
}
}

47
core/src/test/java/it/cavallium/warppi/math/rules/dsl/PatternTest.java
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@ -4,6 +4,7 @@ import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.*;
import it.cavallium.warppi.math.functions.Number;
import it.cavallium.warppi.math.functions.trigonometry.*;
import it.cavallium.warppi.math.rules.dsl.patterns.*;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.junit.Test;
@ -165,4 +166,50 @@ public class PatternTest {
assertEquals(shouldMatch, pattern.replace(mathContext, subFunctions.get()));
}
}
@Test
public void otherUnaryPatterns() {
final Number one = new Number(mathContext, 1);
final SubFunctionPattern x = new SubFunctionPattern("x");
final Function shouldNotMatch = new Negative(mathContext, one);
final List<ImmutablePair<Pattern, Function>> patternsAndMatchingFunctions = Arrays.asList(
new ImmutablePair<>(
new ArcCosinePattern(x),
new ArcCosine(mathContext, one)
),
new ImmutablePair<>(
new ArcSinePattern(x),
new ArcSine(mathContext, one)
),
new ImmutablePair<>(
new ArcTangentPattern(x),
new ArcTangent(mathContext, one)
),
new ImmutablePair<>(
new CosinePattern(x),
new Cosine(mathContext, one)
),
new ImmutablePair<>(
new SinePattern(x),
new Sine(mathContext, one)
),
new ImmutablePair<>(
new TangentPattern(x),
new Tangent(mathContext, one)
)
);
for (final ImmutablePair<Pattern, Function> patternAndMatchingFunction : patternsAndMatchingFunctions) {
final Pattern pattern = patternAndMatchingFunction.getLeft();
final Function shouldMatch = patternAndMatchingFunction.getRight();
assertFalse(pattern.match(shouldNotMatch).isPresent());
final Optional<Map<String, Function>> subFunctions = pattern.match(shouldMatch);
assertTrue(subFunctions.isPresent());
assertEquals(shouldMatch, pattern.replace(mathContext, subFunctions.get()));
}
}
}