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Code Issues 41 Packages Projects Releases Wiki Activity

add support for generic inferred-type arguments

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This commit is contained in:
Dave Holoway
2020-06-11 13:44:59 +01:00
parent 90c537b82d
commit 5b29b9998d
2 changed files with 28 additions and 15 deletions
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7
langserver/java/body-parser3.js
View File

@@ -4,7 +4,8 @@
*
* Each token also contains detailed state information used for completion suggestions.
*/
const { JavaType, CEIType, PrimitiveType, ArrayType, UnresolvedType, NullType, WildcardType, TypeVariable, Field, Method, ReifiedMethod, Parameter, Constructor, signatureToType } = require('java-mti');
const { JavaType, CEIType, PrimitiveType, ArrayType, UnresolvedType, NullType, WildcardType, TypeVariableType,
TypeVariable, InferredTypeArgument, Field, Method, ReifiedMethod, Parameter, Constructor, signatureToType } = require('java-mti');
const { SourceMethod, SourceConstructor, SourceInitialiser } = require('./source-type');
const ResolvedImport = require('./parsetypes/resolved-import');
const ParseProblem = require('./parsetypes/parse-problem');
@@ -1269,6 +1270,10 @@ function isTypeArgumentCompatible(dest_typevar, value_typevar_type) {
}
return false;
}
if (value_typevar_type instanceof TypeVariableType) {
// inferred type arguments of the form `x = List<>` are compatible with every destination type variable
return value_typevar_type.typeVariable instanceof InferredTypeArgument;
}
return dest_typevar.type === value_typevar_type;
}

12
langserver/java/typeident.js
View File

@@ -89,7 +89,16 @@ function typeIdent(tokens, scope, imports, typemap, allow_array_qualifiers = tru
* @param {Map<string,JavaType>} typemap
*/
function genericTypeArgs(tokens, types, scope, imports, typemap) {
if (!tokens.isValue('>')) {
if (tokens.isValue('>')) {
// <> operator - build new types with inferred type arguments
types.forEach((t,i,arr) => {
if (t instanceof CEIType) {
let specialised = t.makeInferredTypeArgs();
arr[i] = specialised;
}
});
return;
}
const type_arguments = typeIdentList(tokens, scope, imports, typemap);
types.forEach((t,i,arr) => {
if (t instanceof CEIType) {
@@ -109,7 +118,6 @@ function genericTypeArgs(tokens, types, scope, imports, typemap) {
}
tokens.expectValue('>');
}
}
/**
* @param {TokenList} tokens