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WIP unification change highlighter

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This commit is contained in:
Arne Keller 2021-03-03 14:57:23 +01:00
parent a807179b05
commit e61c34c8da
2 changed files with 33 additions and 7 deletions
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1
src/main/java/edu/kit/typicalc/view/content/typeinferencecontent/latexcreator/LatexCreatorConstants.java
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@ -54,6 +54,7 @@ public final class LatexCreatorConstants {
protected static final String CIRC = "\\circ";
protected static final String SUBSTITUTION_SIGN = "\\mathrel{\\unicode{x21E8}}";
protected static final String COLOR_RED = "\\color{#f00}";
protected static final String COLOR_HIGHLIGHT = "\\color{#b0b}";
protected static final String EMPTY_SET = "\\emptyset";
protected static final String LAMBDA = "\\lambda";
protected static final String LATEX_SPACE = "\\ ";

39
src/main/java/edu/kit/typicalc/view/content/typeinferencecontent/latexcreator/LatexCreatorConstraints.java
View File

@ -8,7 +8,9 @@ import edu.kit.typicalc.model.type.TypeAbstraction;
import edu.kit.typicalc.util.Result;
import java.nio.channels.IllegalSelectorException;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Deque;
import java.util.List;
import java.util.Map;
import java.util.Optional;
@ -234,7 +236,10 @@ public class LatexCreatorConstraints implements StepVisitor {
List<UnificationStep> unificationSteps = typeInferer.getUnificationSteps()
.orElseThrow(IllegalStateException::new);
// store constraints of previous step to highlight changes
String[] previousConstraints = new String[0];
for (UnificationStep step : unificationSteps) {
List<String> constraints2 = new ArrayList<>();
Result<List<Substitution>, UnificationError> subs = step.getSubstitutions();
Optional<UnificationError> error = Optional.empty();
if (subs.isError()) {
@ -242,6 +247,7 @@ public class LatexCreatorConstraints implements StepVisitor {
step = unificationSteps.get(unificationSteps.size() - 2);
subs = step.getSubstitutions(); // TODO: what if first step fails?
}
List<Substitution> substitutions = subs.unwrap();
StringBuilder latex = new StringBuilder();
latex.append(constraintSets);
latex.append(AMPERSAND + SPLIT_BEGIN);
@ -254,15 +260,33 @@ public class LatexCreatorConstraints implements StepVisitor {
}
for (int i = unificationConstraints.size() - 1; i >= 0; i--) {
latex.append(AMPERSAND);
StringBuilder sb = new StringBuilder();
if (markError && i == 0) {
latex.append(CURLY_LEFT);
latex.append(COLOR_RED);
sb.append(CURLY_LEFT);
sb.append(COLOR_RED);
}
latex.append(new LatexCreatorType(unificationConstraints.get(i).getFirstType()).getLatex());
latex.append(EQUALS);
latex.append(new LatexCreatorType(unificationConstraints.get(i).getSecondType()).getLatex());
sb.append(new LatexCreatorType(unificationConstraints.get(i).getFirstType()).getLatex());
sb.append(EQUALS);
sb.append(new LatexCreatorType(unificationConstraints.get(i).getSecondType()).getLatex());
if (markError && i == 0) {
latex.append(CURLY_RIGHT);
sb.append(CURLY_RIGHT);
}
constraints2.add(sb.toString());
int invIdx = unificationConstraints.size() - 1 - i;
// if this constraint was modified by the substitution
if (invIdx < previousConstraints.length) {
// perform the substitution "manually" and color the new type
Substitution s = substitutions.get(substitutions.size() - 1);
String original = previousConstraints[invIdx];
StringBuilder highlightedChange2 = new StringBuilder();
highlightedChange2.append(CURLY_LEFT);
highlightedChange2.append(COLOR_HIGHLIGHT);
highlightedChange2.append(new LatexCreatorType(s.getType()).getLatex());
highlightedChange2.append(CURLY_RIGHT);
latex.append(original.replace(new LatexCreatorType(s.getVariable()).getLatex(),
highlightedChange2.toString()));
} else {
latex.append(sb.toString());
}
if (i > 0) {
latex.append(COMMA);
@ -270,10 +294,11 @@ public class LatexCreatorConstraints implements StepVisitor {
}
}
if (!unificationConstraints.isEmpty()) {
constraints2.remove(constraints2.size() - 1);
latex.append(LATEX_CURLY_RIGHT + PAREN_RIGHT + LATEX_NEW_LINE);
}
previousConstraints = constraints2.toArray(new String[0]);
List<Substitution> substitutions = subs.unwrap();
for (int i = substitutions.size() - 1; i >= 0; i--) {
if (!unificationConstraints.isEmpty() || i != substitutions.size() - 1) {
latex.append(CIRC);