1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
package com.github.javaparser.symbolsolver.resolution.typeinference;
import com.github.javaparser.ast.expr.LambdaExpr;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import java.util.*;
/**
* @author Federico Tomassetti
*/
public class TypeInferenceCache {
private static Map<TypeSolver, IdentityHashMap<LambdaExpr, Map<String, ResolvedType>>> typeForLambdaParameters = new HashMap<>();
private static Map<TypeSolver, IdentityHashMap<LambdaExpr, List<InferenceVariable>>> inferenceVariables = new HashMap<>();
public static void record(TypeSolver typeSolver, LambdaExpr lambdaExpr, String paramName, ResolvedType type) {
if (!typeForLambdaParameters.containsKey(typeSolver)) {
typeForLambdaParameters.put(typeSolver, new IdentityHashMap<>());
}
if (!typeForLambdaParameters.get(typeSolver).containsKey(lambdaExpr)) {
typeForLambdaParameters.get(typeSolver).put(lambdaExpr, new HashMap<>());
}
typeForLambdaParameters.get(typeSolver).get(lambdaExpr).put(paramName, type);
}
public static Optional<ResolvedType> retrieve(TypeSolver typeSolver, LambdaExpr lambdaExpr, String paramName) {
if (!typeForLambdaParameters.containsKey(typeSolver)) {
return Optional.empty();
}
if (!typeForLambdaParameters.get(typeSolver).containsKey(lambdaExpr)) {
return Optional.empty();
}
if (!typeForLambdaParameters.get(typeSolver).get(lambdaExpr).containsKey(paramName)) {
return Optional.empty();
}
return Optional.of(typeForLambdaParameters.get(typeSolver).get(lambdaExpr).get(paramName));
}
public static void recordInferenceVariables(TypeSolver typeSolver, LambdaExpr lambdaExpr, List<InferenceVariable> _inferenceVariables) {
if (!inferenceVariables.containsKey(typeSolver)) {
inferenceVariables.put(typeSolver, new IdentityHashMap<>());
}
inferenceVariables.get(typeSolver).put(lambdaExpr, _inferenceVariables);
}
public static Optional<List<InferenceVariable>> retrieveInferenceVariables(TypeSolver typeSolver, LambdaExpr lambdaExpr) {
if (!inferenceVariables.containsKey(typeSolver)) {
return Optional.empty();
}
if (!inferenceVariables.get(typeSolver).containsKey(lambdaExpr)) {
return Optional.empty();
}
return Optional.of(inferenceVariables.get(typeSolver).get(lambdaExpr));
}
}
|
