implement method body and ststement validation

langserver/java/statement-validater.js

@@ -0,0 +1,34 @@
+const ParseProblem = require('./parsetypes/parse-problem');
+
+const { CEIType } = require('java-mti')
+const { SourceMethod, SourceConstructor, SourceInitialiser } = require('./source-types');
+
+const { Block } = require("./statementtypes/Block");
+const { Statement } = require("./statementtypes/Statement");
+const { LocalDeclStatement } = require("./statementtypes/LocalDeclStatement");
+
+const { ValidateInfo } = require('./body-types');
+
+/**
+ * @param {Block} block 
+ * @param {SourceMethod | SourceConstructor | SourceInitialiser} method 
+ * @param {Map<string,CEIType>} typemap 
+ * @param {ParseProblem[]} problems 
+ */
+function checkStatementBlock(block, method, typemap, problems) {
+    block.validate(new ValidateInfo(typemap, problems, method));
+}
+
+/**
+ * @param {Statement} statement 
+ * @param {ValidateInfo} vi 
+ */
+function checkNonVarDeclStatement(statement, vi) {
+    if (statement instanceof LocalDeclStatement) {
+        vi.problems.push(ParseProblem.Error(statement.locals[0].decltoken, `Local variables cannot be declared as single conditional statements`));
+    };
+    statement.validate(vi);
+}
+
+exports.checkStatementBlock = checkStatementBlock;
+exports.checkNonVarDeclStatement = checkNonVarDeclStatement;