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import * as Statements from "../2_statements/statements";
import * as Structures from "../3_structures/structures";
import {StatementNode} from "../nodes";
import {ABAPObject} from "../../objects/_abap_object";
import {FormDefinition, FunctionModuleDefinition, FunctionModuleParameterDirection, IFunctionModuleParameter} from "../types";
import {CurrentScope} from "./_current_scope";
import {ScopeType} from "./_scope_type";
import {FunctionGroup} from "../../objects";
import {IRegistry} from "../../_iregistry";
import {IdentifierMeta, TypedIdentifier} from "../types/_typed_identifier";
import {TableType, UnknownType, AnyType, VoidType, StructureType, TableKeyType} from "../types/basic";
import {DDIC} from "../../ddic";
import {AbstractType} from "../types/basic/_abstract_type";
import {ABAPFile} from "../abap_file";
import {ObjectOriented} from "./_object_oriented";
import {ReferenceType} from "./_reference";
import {AbstractToken} from "../1_lexer/tokens/abstract_token";
import {Identifier as IdentifierToken} from "../1_lexer/tokens";
export class Procedural {
private readonly scope: CurrentScope;
private readonly reg: IRegistry;
public constructor(reg: IRegistry, scope: CurrentScope) {
this.scope = scope;
this.reg = reg;
}
public addAllFormDefinitions(file: ABAPFile, obj: ABAPObject) {
const structure = file.getStructure();
if (structure) {
const input = {
scope: CurrentScope.buildDefault(this.reg, obj),
filename: file.getFilename(),
issues: [],
};
for (const found of structure.findAllStructures(Structures.Form)) {
this.scope.addFormDefinitions([new FormDefinition(found, input)]);
}
}
const stru = file.getStructure();
if (stru === undefined) {
return;
}
const includes = stru.findAllStatements(Statements.Include);
for (const node of includes) {
const found = this.findInclude(node, obj);
if (found) {
this.addAllFormDefinitions(found, obj);
}
}
}
public findInclude(node: StatementNode, obj: ABAPObject): ABAPFile | undefined {
// assumption: no cyclic includes, includes not found are reported by rule "check_include"
// todo: how to make sure code is not duplicated here and in rule "check_include" / include graph?
const expr = node.findFirstExpression(Expressions.IncludeName);
if (expr === undefined) {
return undefined;
}
const name = expr.getFirstToken().getStr();
// look in the current function group
if (obj instanceof FunctionGroup) {
const incl = obj.getInclude(name);
if (incl !== undefined) {
return incl;
}
}
const prog = this.reg.getObject("PROG", name) as ABAPObject | undefined;
if (prog !== undefined) {
return prog.getABAPFiles()[0];
}
// todo, this is slow, try determining the FUGR name from the include name
for (const fugr of this.reg.getObjectsByType("FUGR")) {
if (fugr instanceof FunctionGroup) {
const found = fugr.getInclude(name);
if (found) {
return found;
}
}
}
return undefined;
}
public findFunctionGroupScope(fg: FunctionGroup) {
for (const module of fg.getModules()) {
if (module.isGlobalParameters() === false) {
continue;
}
// console.dir(fg.getSequencedFiles());
const fmFile = fg.getSequencedFiles().find((f) => { return f.getFilename().endsWith(".fugr." + module.getName().toLowerCase().replace(/\//g, "#") + ".abap"); });
if (fmFile === undefined) {
continue;
}
const nameToken = fmFile.getStructure()?.findFirstStatement(Statements.FunctionModule
)?.findFirstExpression(Expressions.Field)?.getFirstToken();
if (nameToken === undefined) {
continue;
}
this.addFunctionScope(module, nameToken, fmFile.getFilename(), true);
}
}
public findFunctionScope(obj: ABAPObject, node: StatementNode, filename: string) {
if (!(obj instanceof FunctionGroup)) {
throw new Error("findFunctionScope, expected function group input");
}
const nameToken = node.findFirstExpression(Expressions.Field)!.getFirstToken();
const name = nameToken.getStr();
this.scope.push(ScopeType.FunctionModule, name, node.getFirstToken().getStart(), filename);
const definition = obj.getModule(name);
if (definition === undefined) {
throw new Error("Function module definition \"" + name + "\" not found");
}
if (definition.isGlobalParameters() === true) {
return; // already added at global level
}
this.addFunctionScope(definition, nameToken, filename);
}
private addFunctionScope(definition: FunctionModuleDefinition, nameToken: AbstractToken, filename: string,
ignoreIfAlreadyExists = false) {
const ddic = new DDIC(this.reg);
const allNames = new Set<string>();
for (const param of definition.getParameters()) {
let found: AbstractType | undefined = undefined;
if (param.type === undefined || param.type === "") {
found = AnyType.get();
} else if (param.type.includes("=>")) {
// then its a type from global INTF or CLAS
const [clas, name] = param.type.split("=>");
const def = this.scope.findObjectDefinition(clas);
if (def) {
const type = def.getTypeDefinitions().getByName(name);
if (type) {
this.scope.addReference(nameToken, type, ReferenceType.TypeReference, filename);
found = type.getType();
}
}
}
if (found === undefined) {
found = ddic.lookup(param.type!).type;
}
if (param.direction === FunctionModuleParameterDirection.tables) {
if (found instanceof TableType) {
found = new TableType(found.getRowType(), {withHeader: true, keyType: TableKeyType.default});
} else {
found = new TableType(found, {withHeader: true, keyType: TableKeyType.default});
}
}
if ((found instanceof UnknownType || found instanceof VoidType) && param.type?.includes("-")) {
const [name, field] = param.type.split("-");
const f = ddic.lookupTableOrView(name).type;
if (f && f instanceof StructureType) {
const c = f.getComponentByName(field);
if (c) {
found = c;
}
}
if (found === undefined || found instanceof UnknownType || found instanceof VoidType) {
const f = this.scope.findType(name)?.getType();
if (f && f instanceof StructureType) {
const c = f.getComponentByName(field);
if (c) {
found = c;
}
}
}
} else if ((found instanceof UnknownType || found instanceof VoidType) && param.type?.includes("=>")) {
const [name, field] = param.type.split("=>");
const def = this.scope.findObjectDefinition(name);
const c = new ObjectOriented(this.scope).searchTypeName(def, field);
if (c) {
found = c.getType();
}
}
if ((found instanceof UnknownType || found instanceof VoidType) && param.type) {
const f = ddic.lookupBuiltinType(param.type);
if (f) {
found = f;
}
if (found === undefined || found instanceof UnknownType || found instanceof VoidType) {
const f = this.scope.findType(param.type)?.getType();
if (f) {
found = f;
}
}
if (found === undefined || found instanceof UnknownType || found instanceof VoidType) {
const f = this.scope.findTypePoolType(param.type)?.getType();
if (f) {
found = f;
}
}
}
if (found instanceof UnknownType && new DDIC(this.reg).inErrorNamespace(param.type) === false) {
found = VoidType.get(param.type);
}
if (allNames.has(param.name.toUpperCase())) {
// yea, IMPORTING and EXPORTING can have the same name
// workaround to avoid false postivies, can be improved
continue;
} else {
const token = new IdentifierToken(nameToken.getStart(), param.name);
const type = new TypedIdentifier(token, filename, found, this.functionModuleParameterMeta(param));
if (ignoreIfAlreadyExists === true) {
const exists = this.scope.findVariable(param.name);
if (exists === undefined) {
this.scope.addNamedIdentifier(param.name, type);
}
} else {
this.scope.addNamedIdentifier(param.name, type);
}
allNames.add(param.name.toUpperCase());
}
}
}
private functionModuleParameterMeta(param: IFunctionModuleParameter): IdentifierMeta[] {
const ret: IdentifierMeta[] = [];
if (param.direction === FunctionModuleParameterDirection.importing) {
ret.push(IdentifierMeta.FunctionModuleImporting);
} else if (param.direction === FunctionModuleParameterDirection.exporting) {
ret.push(IdentifierMeta.FunctionModuleExporting);
} else if (param.direction === FunctionModuleParameterDirection.changing) {
ret.push(IdentifierMeta.FunctionModuleChanging);
} else if (param.direction === FunctionModuleParameterDirection.tables) {
ret.push(IdentifierMeta.FunctionModuleTables);
}
if (param.passByValue) {
ret.push(IdentifierMeta.PassByValue);
}
return ret;
}
}
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