Zig 0.17.0-dev (Split by item)

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transExprCoercing

Same as transExpr but with the knowledge that the operand will be type coerced, and therefore an @as would be redundant. This is used to prevent redundant @as in integer literals.

Translator.transExprCoercing

fn transExprCoercing(t: *Translator, scope: *Scope, expr: Node.Index, used: ResultUsed) TransError!ZigNode

File

lib/compiler/translate-c/Translator.zig:2378

Code

fn transExprCoercing(t: *Translator, scope: *Scope, expr: Node.Index, used: ResultUsed) TransError!ZigNode {
    switch (expr.get(t.tree)) {
        .int_literal => return t.transIntLiteral(scope, expr, used, .no_as),
        .char_literal => return t.transCharLiteral(scope, expr, used, .no_as),
        .float_literal => return t.transFloatLiteral(scope, expr, used, .no_as),
        .cast => |cast| switch (cast.kind) {
            .no_op => {
                const operand = cast.operand.get(t.tree);
                if (operand == .cast) {
                    return t.transCastExpr(scope, operand.cast, cast.qt, used, .no_as);
                }
                return t.transExprCoercing(scope, cast.operand, used);
            },
            .lval_to_rval => return t.transExprCoercing(scope, cast.operand, used),
            else => return t.transCastExpr(scope, cast, cast.qt, used, .no_as),
        },
        .default_init_expr => |default_init| return try t.transDefaultInit(scope, default_init, used, .no_as),
        .compound_literal_expr => |literal| {
            if (!literal.thread_local and literal.storage_class != .static) {
                return t.transExprCoercing(scope, literal.initializer, used);
            }
        },
        else => {},
    }

    return t.transExpr(scope, expr, used);
}