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Type declaration parsing; Future feature references

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This commit is contained in:
dcodeIO
2017-12-19 17:49:15 +01:00
parent aa563a9a5a
commit 9632777842
18 changed files with 364 additions and 172 deletions
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43
src/ast.ts
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@ -62,6 +62,7 @@ export enum NodeKind {
SWITCH,
THROW,
TRY,
TYPEDECLARATION,
VARIABLE, // wraps declarations
VARIABLEDECLARATION,
WHILE,
@ -542,6 +543,17 @@ export abstract class Node {
return stmt;
}
static createTypeDeclaration(identifier: IdentifierExpression, alias: TypeNode, modifiers: Modifier[] | null, decorators: Decorator[] | null, range: Range): TypeDeclaration {
const stmt: TypeDeclaration = new TypeDeclaration();
stmt.range = range;
(stmt.name = identifier).parent = stmt;
(stmt.alias = alias).parent = stmt;
let i: i32, k: i32;
if (stmt.modifiers = modifiers) for (i = 0, k = (<Modifier[]>modifiers).length; i < k; ++i) (<Modifier[]>modifiers)[i].parent = stmt;
if (stmt.decorators = decorators) for (i = 0, k = (<Decorator[]>decorators).length; i < k; ++i) (<Decorator[]>decorators)[i].parent = stmt;
return stmt;
}
static createVariable(declarations: VariableDeclaration[], modifiers: Modifier[] | null, decorators: Decorator[] | null, range: Range): VariableStatement {
const stmt: VariableStatement = new VariableStatement();
stmt.range = range;
@ -552,10 +564,10 @@ export abstract class Node {
return stmt;
}
static createVariableDeclaration(identifier: IdentifierExpression, type: TypeNode | null, initializer: Expression | null, modifiers: Modifier[] | null, decorators: Decorator[] | null, range: Range): VariableDeclaration {
static createVariableDeclaration(name: IdentifierExpression, type: TypeNode | null, initializer: Expression | null, modifiers: Modifier[] | null, decorators: Decorator[] | null, range: Range): VariableDeclaration {
const elem: VariableDeclaration = new VariableDeclaration();
elem.range = range;
(elem.name = identifier).parent = elem;
(elem.name = name).parent = elem;
if (elem.type = type) (<TypeNode>type).parent = elem;
if (elem.initializer = initializer) (<Expression>initializer).parent = elem;
elem.modifiers = modifiers;
@ -1864,6 +1876,33 @@ export class TryStatement extends Statement {
}
}
/** Represents a `type` declaration. */
export class TypeDeclaration extends DeclarationStatement {
kind = NodeKind.TYPEDECLARATION;
/** Type being aliased. */
alias: TypeNode;
serialize(sb: string[]): void {
let i: i32, k: i32;
if (this.decorators)
for (i = 0, k = this.decorators.length; i < k; ++i) {
this.decorators[i].serialize(sb);
sb.push("\n");
}
if (this.modifiers)
for (i = 0, k = (<Modifier[]>this.modifiers).length; i < k; ++i) {
(<Modifier[]>this.modifiers)[i].serialize(sb);
sb.push(" ");
}
sb.push("type ");
this.name.serialize(sb);
sb.push(" = ");
this.alias.serialize(sb);
}
}
/** Represents a single variable declaration within a {@link VariableStatement}. */
export class VariableDeclaration extends VariableLikeDeclarationStatement {